QSC RMX 1450 (01) PDF MANUAL


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PDF Content Summary: RMXTM Series 2RU models ▲ RMX 850 ▲ RMX 1450 ▲ RMX 1850HD ▲ RMX 2450 *TD-000098-00* QSC Audio Products, LLC TD-000098-00 Costa Mesa, CA 92626 USA Rev. C http://www.qscaudio.com RMX Series Technical Service Manual RMX 850 RMX 1450 RMX 1850HD RMX 2450 QSC Audio Products, LLC Technical Services Group Phone: 1-800 QSC AUDIO (1-800-772-2834) USA only +1 (714) 957-7150 Fax: +1 (714) 754-6173 Postal: 1665 MacArthur Blvd. Costa Mesa, California 92626 USA E-mail: tech_support@qscaudio.com Web: http://www.qscaudio.com (product information and support) http://www.qscstore.com (parts and accessory sales) Copyright 2001, 2002, 2005, 2008 QSC Audio Products, LLC All rights reserved. Document # TD-000098-00, Rev. C. Released June 2008. RMX Series Technical Service Manual (2RU models) 1 TD-000098-00 rev. C RMX Series Performance Specifications RMX 850 RMX 1450 RMX 1850HD RMX 2450 OUTPUT POWER in watts FTC: 20 Hz–20 kHz @ 0.1% THD, both channels driven 8Ω per channel 185 260 350 450 4Ω per channel 280 400 550 650 EIA: 1 kHz @ 0.1% THD, both channels driven 8Ω per channel 200 280 360 500 4Ω per channel 300 450 600 750 1 kHz @ 1% THD, typical, both channels driven 2Ω per channel 430 700 900 1200 Bridge Mono: 8Ω, 20 Hz–20 kHz, 0.1% THD 530 800 1300 8Ω, 1 kHz, 0.1% THD 600 900 1200 1500 4Ω, 1 kHz, 1% THD, typical 830 1400 1800 2400 DYNAMIC HEADROOM 2 dB @ 4Ω DISTORTIONSMPTE-IM < 0.01% < 0.01% < 0.02% < 0.02% FREQUENCY RESPONSE 20 Hz–20 kHz, +0/-1 dB (at 10 dB below rated output power) -3 dB points: 5 Hz and 50 kHz DAMPING FACTOR > 300 @ 8Ω NOISE (unweighted 20 Hz to 20 kHz, below rated output) 100 dB 100 dB 100 dB 100 dB VOLTAGE GAIN 31.6× (30 dB) 40× (32 dB) 46× (33 dB) 50× (34 dB) INPUT SENSITIVITY, V RMS full rated power @ 8Ω 1.15v (+3.4 dBu) 1.15v (+3.4 dBu) 1.16v (+3.5 dBu) 1.23v (+4.0 dBu) INPUT IMPEDANCE 10 kΩ unbalanced 20 kΩ balanced CONTROLS Front: AC switch, Ch. 1 and Ch. 2 gain Rear: 10-position DIP switch INDICATORS POWER: Green LED CLIP: Red LED, 1 per channel SIGNAL: Yellow LED, 1 per channel CONNECTORS Input: Active balanced; XLR and 1⁄4" (6.3 mm) TRS, tip and pin 2 positive, and barrier strip Output: “Touch-Proof” binding posts and Neutrik SpeakonTM COOLING Continuously variable speed fan, back-to-front air flow AMPLIFIER PROTECTION Full short circuit, open circuit, thermal, ultrasonic, and RF protection Stable into reactive or mismatched loads LOAD PROTECTION Turn-on/turn-off muting (all models) AC coupling AC coupling Triac crowbar (each channel) Triac crowbar (each channel) OUTPUT CIRCUIT TYPE AB AB H H AB: Class AB+B complementary linear output H: Class AB+B complementary linear output with Class H 2-step high efficiency circuit DIMENSIONS 19.0" (48.3 cm) wide, 3.5" (8.9 cm) tall (2 rack spaces) 15.9" (40 cm) deep (rack mounting to rear support ears) WEIGHT Shipping: 41 lb. (18.6 kg) 46 lb. (20.9 kg) 50.5 lb. (23 kg) 50.5 lb. (23 kg) Net: 35 lb. (15.9 kg) 40 lb. (18.2 kg) 44.5 lb. (20.2 kg) 44.5 lb. (20.2 kg) POWER REQUIREMENTS Available for 120 or 220–240 VAC, 50/60 Hz POWER CONSUMPTION @ 120 VAC (both channels driven) Typical1 Full2 Max3 Idle 0.8 A Multiply currents by 0.5 for 230V units 8Ω 3.9 A 6.9 A 12.6 A 4Ω 6.1 A 11.2 A 20.7 A 2Ω 8.7 A 16.6 A* 32 A* 1. Typical—Measured with pink noise signal on all channels at 1/8 of full average power. Producing peaks that occasionally reach the amp’s clipping point, this level approximates the maximum operating level before clipping affects sound quality. These data would be the amp’s typical worst-case current. 2. Full—Measured with pink noise signal on all channels at 1/3 of full average power. Music at this level would typically produce massive clipping. In a class B amplifier, this would be the approximate point of maximum heat production. 3. Max—Measured with continuous sine wave signal on all channels at a point of slight clipping (1% THD). This represents a “test bench” scenario and does not resemble any real-world usage. US patents pending SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE lacipyT 1 lluF 2 xaM 3 eldI A5.0 8Ω A3 A1.4 A4.7 4Ω A5.4 A6.6 A5.11 2Ω A5.6 *A5.9 *A71 lacipyT 1 lluF 2 xaM 3 eldI A5.0 8Ω A7.3 A4.5 A01 4Ω A6 A6.9 A61 2Ω A3.9 *A7.41 *A52 lacipyT 1 lluF 2 xaM 3 eldI A6.0 8Ω A4 A7.9 A4.61 4Ω A3.6 A6.51 A72 2Ω A2.9 *A32 *A14 2 QSC Audio Products, LLC Table of Contents RMX Series Performance Specifications ...................................................................................................................................................... 2 1. Introduction ..................................................................................................................................................................................................... 5 1.1 Restriction of Hazardous Substances Directive (RoHS)................................................................................................................................ 5 1.2 QSC serial numbers ....................................................................................................................................................................................... 5 1.3 Service bulletins ............................................................................................................................................................................................. 5 1.4 The well-equipped service bench .................................................................................................................................................................. 6 1.5 Working with surface-mount components ................................................................................................................................................... 6 1.6 Series description .......................................................................................................................................................................................... 8 1.7 Technical descriptions and theory of operation ........................................................................................................................................... 8 2. Component identification and pinout ..................................................................................................................................................... 11 3. Troubleshooting: Symptoms, causes, & remedies ................................................................................................................................ 13 3.1 Excessive current draw ................................................................................................................................................................................ 13 3.2 Protection, muting, and turn-on/turn-off delay problems ......................................................................................................................... 13 3.3 Faults with signal present ........................................................................................................................................................................... 14 3.4 Instability ...................................................................................................................................................................................................... 14 3.5 Power supply and rail balancing problems ................................................................................................................................................. 15 4. RMX calibration procedures ...................................................................................................................................................................... 16 4.1 Setting bias .................................................................................................................................................................................................. 16 4.2 Setting positive and negative current limits .............................................................................................................................................. 16 5. Servicing RMX amplifiers ........................................................................................................................................................................... 18 5.1 Mechanical disassembly and re-assembly .................................................................................................................................................. 18 6. Replacement parts ....................................................................................................................................................................................... 19 6.1 RMX850 Replacement Parts ....................................................................................................................................................................... 19 6.2 RMX1450 Replacement Parts ..................................................................................................................................................................... 22 6.3 RMX1850HD Replacement Parts ................................................................................................................................................................. 25 6.4 RMX2450 Replacement Parts ..................................................................................................................................................................... 29 7. Schematics and diagrams .......................................................................................................................................................................... 33 7.1 RMX Assembly/Disassembly Diagram 1 of 2 (All models) ................................................................................................................................................................................................. 33 7.2 RMX Assembly/Disassembly Diagram 2 of 2 (All models) ................................................................................................................................................................................................. 34 7.3 RMX 850 Schematic Diagram 1 of 3 Channel 1 ................................................................................................................................................................................................... 35 7.4 RMX 850 Schematic Diagram 2 of 3 Channel 2 ................................................................................................................................................................................................... 36 7.5 RMX 850 Schematic Diagram 3 of 3 Power Supply ............................................................................................................................................................................................. 37 7.6 RMX 1450 Schematic Diagram 1 of 3 Channel 1 ................................................................................................................................................................................................... 38 7.7 RMX 1450 Schematic Diagram 2 of 3 Channel 2 ................................................................................................................................................................................................... 39 7.8 RMX 1450 Schematic Diagram 3 of 3 Power Supply ............................................................................................................................................................................................. 40 7.9 RMX 1850HD Schematic Diagram 1 of 3 Channel 1 ................................................................................................................................................................................................... 41 7.10 RMX 1850HD Schematic Diagram 2 of 3 Channel 2 ................................................................................................................................................................................................... 42 7.11 RMX 1850HD Schematic Diagram 3 of 3 Power Supply ............................................................................................................................................................................................. 43 7.12 RMX 2450 Schematic Diagram 1 of 4 Channel 1 ................................................................................................................................................................................................... 44 RMX Series Technical Service Manual (2RU models) 3 TD-000098-00 rev. C Table of Contents (continued) 7.13 RMX 2450 Schematic Diagram 2 of 4 Channel 2 ................................................................................................................................................................................................... 45 7.14 RMX 2450 Schematic Diagram 3 of 4 Power Supply ............................................................................................................................................................................................. 46 7.15 RMX 2450 Schematic Diagram 4 of 4 Power Supply Revision .............................................................................................................................................................................. 47 7.16 RMX Power Transformer Configurations March 2007 and later ................................................................................................................................................................................ 48 7.17 RMX 850 Chassis Wiring Diagram ............................................................................................................................................................ 49 7.18 RMX 1450 Chassis Wiring Diagram .......................................................................................................................................................... 50 7.19 RMX 1850HD and RMX 2450 Chassis Wiring Diagram ........................................................................................................................... 51 4 QSC Audio Products, LLC RMX Series Technical Service Manual (2RU models) 5 TD-000098-00 rev. C 1. Introduction 1.1 Restriction of Hazardous Substances Directive (RoHS) Since April 2006, all RMX Series amplifiers are manufactured to conform to the European Union’s RoHS Directive, which reduces the amount of hazardous substances allowed in products for sale within its member nations. In electronic equipment such as audio power amplifiers, this applies primarily to certain toxic heavy metals, such as lead, which may be present in electronic components, solder, and other parts. RoHS-compliant materials When servicing RoHS-compliant amplifiers, it is important for the service technician to use only RoHS-compliant components and solder (lead-free). All replacement parts provided by QSC for RoHS-compliant products are certified as RoHS compliant. RoHS-compliant tools Soldering irons and desoldering apparatus used on RoHS-compliant products must also not be contaminated by hazardous substances, such as lead. Therefore, you cannot use the same soldering and desoldering tools for RoHS-compliant products and solder as you do for non-compliant products and solder. You must either use separate soldering irons, desoldering tools and braid, etc., or at the very least designate separate tips and braids and use only the appropriate ones. If you contaminate a tip or braid, even inadvertently, by using it on a non-compliant product or solder, you should no longer use it with RoHS-compliant products or solder. 1.2 QSC serial numbers

Serial numbers on QSC RMX series amplifiers are nine digits long. The first four digits are a manufacturing date code in mmyy format; the last five digits are the sequential identifying number for each individual amplifier. For example, a serial number of 0807xxxxx would indicate that the amplifier was built in 08/2007, or August 2007. The date code is important for determining whether an amplifier is subject to a service bulletin, covered by a warranty (in the absence of original purchase records), etc. The amplifier’s serial number can be found on a label on the rear panel. The label also indicates the model number, power rating, 4Ω current draw, and the AC mains voltage the amplifier was made for. Certain design changes that the RMX amplifiers have undergone commenced with a particular date code; for example, the RMX amplifiers with a date code of 0406 or later conform to the European Union’s RoHS Directive and must be serviced only with lead-free solder and soldering irons that are not contami- nated with lead or other heavy metals covered by the directive. 1.3 Service bulletins Figure 1.1. The label displays two vital pieces of information: the amplifier’s serial number and operating voltage

Contact QSC Technical Services to make sure you have the most up-to-date service bulletins for RMX Series amplifiers. Service bulletins may be distributed in hard copy, via fax, and electronically (Adobe Acrobat PDF) via CD-ROMs, FTP from the QSC web site (www.qscaudio.com), and e-mail. These service bulletins had been issued at the time this manual was printed: • RMX0001, “Q205 Lead Stress” (RMX2450 only) • RMX0002, “RMX Turn-on Delay” (all RMX models) • RMX0003, “RMX2450 Turn-off Mute” (RMX2450) • RMX0004, “RMX2450 AC Wire Routing” (RMX 2450) • RMX0005, “RMX2450 AC Wire Replacement” (RMX2450) • RMX0006, “RMX2450 IRFZ44N Field Effect Transistors (RMX2450) 1.4 The well-equipped service bench To properly service RMX amplifiers, a technician needs the right tools. The technician’s service bench should have the following equipment: • Digital multimeter with RMS AC voltage and current • Digital clamp-on ammeter • Dual-trace oscilloscope • Audio distortion analyzer • Non-inductive load resistors, configurable as 8 ohms (min. 500 watts capacity), as 4 ohms (min. 750 watts capacity), and 2 ohms (min. 1200 watts capacity); see Figure 1.2 and Table 1.1. • Variable AC voltage source, such as a Variac or Powerstat variable trans- former, with a rated current capacity of up to 25A (for 120V models) or 12A (for 230V models) • Low-distortion audio sine wave generator • Philips and flat screwdrivers • Soldering iron with a fine tip, 25–60W recommended (if you service both RoHS-compliant and non-compliant amplifiers, you will need separate soldering and desoldering equipment for each) • Appropriate rosin-core solder (use only RoHS compliant lead- free solder for RoHS-compliant amplifers; for non-RoHS amplifiers, use a 60/40 or 63/37 Pb/Sn alloy) • Long-nose pliers • Diagonal cutters • Wire strippers Automated test equipment, such as an Audio Precision workstation, is very useful for servicing RMX amplifiers. Contact QSC Technical Services to obtain applicable AP test files. Solder braid SW1 SW2 SW3 R1 R2 R3 R4 SW4 8Ω 8Ω 8Ω 8Ω R1: 8 Ω , 500W non-inductive R2–R4: 8 Ω , 300W min. non-inductive SW1 SW2 SW3 SW4 ∞Ω (no load) OFF • • • 8Ω ON OFF OFF OFF 4Ω ON ON OFF OFF 2Ω ON ON ON OFF 0Ω (short circuit) ON • • ON Figure 1.5. Figure 1.2. Load resistor bank Table 1.1. Load resistor bank switch truth table 1.5 Working with surface-mount components RMX amplifiers, like many modern electronic products, use surface-mount technology (SMT) components where appropriate in order to make high-density circuitry that is reliable and economical to manufacture. SMT components in the RMX amps are used in the small-signal and control circuits, so they do not handle significant amounts of power; therefore, they are subject to very little stress and should seldom fail. Figure 1.3. Sometimes they do fail, or they require replacement for a performance upgrade or modification. Thus, it is important to know how to work with SMT components. Specialized tools and equipment exist for soldering, unsoldering, and removing SMT components quickly and efficiently, but they are often expensive. Most SMT repairs, though, can be handled reasonably well with common tools and equipment, such as tweezers, solder braid, and fine-tip soldering irons. The original factory components are tacked to the board with a spot of glue, so you might have to apply some force to break the adhesive. Figure 1.4. Two-terminal components (resistors, capacitors, diodes, etc.) Removal 1 Use two soldering irons, preferably about 25 to 40 watts, with fine tips. 2 With a soldering iron in each hand, hold one tip on the solder at one end of the component and the Solder other tip on the other end (Figure 1.3). 3 Once the solder melts on both ends, grip the component between the two tips and lift it from the circuit board. 4 Use solder braid and a soldering iron to remove the solder from the two pads (Figure 1.4). 6 QSC Audio Products, LLC Insertion Tweezers1 With a soldering iron and appropriate solder, melt just enough solder onto one pad to create a small mound (Figure 1.5). 2 Grasp the component in the middle with tweezers. Melt the small mound of solder with the iron and Figure 1.6. place the component across the two pads (in the correct orientation, if the component is sensitive to direction) and press it flat against the circuit board, with one end of the component immersed in the melted solder (Figure 1.6). 3 Hold the component in place and take the soldering iron away. Let the solder harden to tack the Solder component in place. 4 Fully solder the other end of the component to its pad. Let the solder harden (Figure 1.7). 5 Fully solder the tacked end of the component to its pad (Figure 1.8). Figure 1.7. Three-terminal components (transistors, etc.) Solder Removal 1 With a soldering iron and solder braid, remove as much solder as possible from the middle terminal of the component. Figure 1.8. 2 With a soldering iron in each hand, hold one tip on the solder at the terminal at one end of the component and the other tip on the terminal at the other end. 3 When the solder on both ends melts, grip the component between the two tips and lift it from the circuit board. You might need to quickly touch the pad on the middle terminal with a soldering iron to melt any remaining solder that might be holding the component down. 4 Use solder braid and a soldering iron to remove the solder from the three pads. Insertion 1 With a soldering iron and appropriate solder, melt just enough solder onto one pad to create a small mound of solder. 2 Grasp the component with tweezers. Melt the small mound of solder with the iron and place the component in the correct orientation across the three pads and press it flat against the circuit board, with one terminal of the component pressed into the melted solder. 3 Hold the component in place and take the soldering iron away. Let the solder harden to tack the component in place. 4 Fully solder the other terminals of the component to their pads. Let the solder harden. 5 Fully solder the tacked terminal of the component to its pad. Multi-pin components (ICs, etc.) Removal Removing a multi-pin SMT component is a delicate procedure. Ideally, you should use a soldering iron with an attachment that allows you to heat all the pins simultaneously. If such a soldering device is not available, use this procedure: 1 Use a soldering iron and solder braid to remove as much solder as possible from the pins of the component. 2 With fine tweezers, carefully try to lift each pin to see if it’s free. If it’s not, touch it with the tip of the soldering iron and if necessary, use the solder braid to remove the remaining solder. 3 Repeat the process until all the pins are free and you can remove the component. Insertion 1 With a soldering iron and appropriate solder, melt just enough solder onto one pad to create a small mound of solder. It is usually easiest to use a pad that corresponds to one of the end or corner pins of the component. 2 Grasp the component with tweezers. Melt the small mound of solder with the iron and place the component in the correct orientation upon its pads and gently press it flat against the circuit board, with the appropriate terminal of the component pressed into the melted solder. 3 Hold the component in place and take the soldering iron away. Let the solder harden to tack the component in place. 4 Fully solder the other terminals of the component to their pads. Let the solder harden. 5 Fully solder the tacked terminal of the component to its pad. RMX Series Technical Service Manual (2RU models) 7 TD-000098-00 rev. C 1.6 Series description QSC’s RMX Series amplifiers are entry-level professional audio products, designed for good, basic performance and reliability at low price. The series comprises six two-channel models; this manual covers the four two-rack-space models: the RMX850, RMX1450, RMX1850HD and RMX2450. See page 2 for complete Figure 1.9 Figure 1.10 specifications. The three-rack-space models—the RMX4050HD and the RMX5050—are covered by another service manual. The RMX850 and RMX1450 have single-sided printed circuit boards. The RMX1850HD and RMX2450 use double-sided boards. 1.7 Technical descriptions and theory of operation Note: Some of these descriptions concern circuitry that is duplicated in the amplifier’s two channels. For the sake of simplicity, the descriptions are of Channel 1 only. Components in Channel 1 have a 3-digit designation with “1” as the first digit; their equivalents in Channel 2 have a “2” as the first digit, followed by the same two numerals. For example, R122 and R222 have identical functions in their respective channels. Power supplies Unlike other recent QSC amplifiers, the RMX line uses strictly conventional power supplies, with large transformers that operate at the 50 or 60 Hz frequency of the AC line. The electrical current in the secondary circuitry is converted to DC through a full-wave bridge rectifier. The resulting 100 or 120 Hz ripple is filtered out by large capacitors that also serve as current reservoirs for short- term, transient demands. The supply provides a bipolar set of supply rails for each channel, with equal quiescent positive and negative voltages, as shown in Figure 1.9. Note that unlike many bipolar supplies for complemen- tary transistor arrangements, the secondary windings are not connected to ground at the center. This is because the output transistors are directly mounted to the heat sink, metal-to-metal, to maximize heat transfer; this grounds the collectors, requiring somewhat different output and power supply arrangements. The grounded-collector concept is described later in this chapter. In the RMX1850HD and RMX2450, the secondaries are tapped to provide an intermediate set of bipolar rails for the Class H output circuitry. Figure 1.10 shows one channel. Class H operation is described later in this chapter. The 24-volt cooling fan is driven by a separate DC supply that is powered by a 20-volt tap on the transformer primary. To minimize fan noise, the fan speed is controlled by varying its actual DC voltage in response to the amplifier’s heat sink temperatures. An optocoupler isolates the fan control circuitry from the thermal sensors. Audio circuitry The audio inputs are balanced to offer a reasonably high amount of common-mode noise rejection. The input balancing is done using a single op amp (one half of an NE5532 dual op amp) arranged as a differential amplifier. The degree of common-mode +Vcc Channel 1 -Vcc rejection is dependent on a close match between the input resistors (R100 and R101 in Figure 1.11) and between the feedback resistor and the shunt resistor (R105 and R106). The circuitry uses 1% precision resistors to ensure at least 40 dB of common-mode +Vcc rejection. Channel 2 -VccThe feedback and shunt capacitors, C101 and C103, add a first- order high-frequency roll-off, down 3 dB at 88.4 kHz (over two octaves above the high end of the audio spectrum). This makes the amplifier less susceptible to RF interference, high-frequency oscillations, etc. Also in this stage, the feedback loop contains one half of an NE5517 +110V (equivalent to the more familiar LM13600) dual operational transconductance amplifier (Figure 1.12). The OTA is part of the clip -110V +55V limiter circuitry; when the clip limiter is activated, a control voltage Channel 1 increases the transconductance of the OTA, which essentially decreases the impedance of the feedback loop and reduces the -55V gain of the stage in order to reduce the amount of clipping. Ch. 1 Center Tap The gain control uses a linear potentiometer, but the impedances 0.047 μF loading the wiper to ground make the pot approximate an audio 12 Ω 5W ×2taper over most of its rotation. After the wiper, RC networks roll To Channel 2 Center Tap off the low end, if the LF filter is set for that channel, at either 30 or 50 Hz, depending on the DIP switch setting on the rear panel. 8 QSC Audio Products, LLC the arrangement of the output transistors might look somewhat backwards: PNP transistors connected to the positive voltage rail, and NPN on the negative rail. Not only that, but the transistors attached to the positive rail are for pulling the output voltage negative, and the ones on the negative rail swing the output positive. The collectors all connect to ground, which allows them to be mounted directly to the heat sink—metal-to-metal, without insulators in between—for the best possible transfer of heat away from the transistors. The emitters of the PNP and NPN transistors are coupled through resistors to the positive and negative supply rails, respectively, forming banks of common-emitter circuits driving the supply rails. Consequently, the devices drive the rails with the audio signal, which rides atop the DC. The output to the speaker load is taken from the point between the positive and negative reservoir capacitors; this is also where the negative feedback is taken from. The nature of this arrangement, with audio signal riding on the supply rails, is why the power supply has no ground reference. Another unusual characteristic of the grounded-collector output section is that the signal at the output to the speaker is actually opposite in polarity to the signal at the op amp output. This is why the negative feedback resistor, R122, connects to the op amp’s non-inverting input instead of the inverting input. The output point of the circuit couples to the output connector through an RLC network (R160, R161, R162, L100, and C124) that serves as a high-frequency snubber and also helps keep the amp circuitry stable when driving capacitive loads. Clip detection The output of the op amp also drives a group of four diodes (D102, D103, D105, and D106) arranged as a full-wave rectifier. Normally, the op amp’s output signal level is about 1 volt or less, which is all it takes to drive the driver transistors. But because this point is within the overall feedback loop, when clipping occurs, the op amp approaches full open-loop gain and puts out a much higher signal voltage to try to make the output signal track the input. The four diodes rectify the voltage to drive the clip indicator LED, LD100. The current exiting the full-wave rectifier passes to ground through R127 and also drives the base of transistor Q100 through R115. If the clip limiter is switched on, Q100’s emitter is grounded, and when the voltage across R127 goes sufficiently negative to forward-bias Q100, which sends current through R111 and R103 into the amplifier bias input of the operational transconductance amplifier (OTA), U10:1. The OTA is in the negative feedback loop of U101:1, and increasing its transconductance essentially reduces the impedance of the feedback loop, which reduces the gain of the op amp stage. This reduces the signal level until the amount of clipping is minimal. When the clipping stops, Q100 is no longer forward-biased, and the gain returns to normal. C101 180p-5% ^C_0805 R105 10.0K A1 ^R_0805 NE5532 R102 U101:1 1K ^R_0805 WCW CCA1 C103 180p-5% R100 10.0K ^R_0805 +IN_A -IN_A C106 47μF NP 3 + 2 - 1 R113 R101 10.0K ^R_0805 274 ^R_0805 To LM13600 operational transconductance amp Figure 1.12 R106 10.0K ^R_0805 R112 W 2.5K 2.5K LINEAR RIGHT ANGLE POT Figure 1.11 The next active device is another 5532 op amp, U101:2. Its output drives the driver transistors, which in turn drive the output transis- tors. The output section has a Class AB+B configuration; the drivers (a complementary pair, Q105 and Q106, comprising an NPN MJE15032 and a PNP MJE 15033) are class AB. A series network of two diodes and a 100-ohm trimpot provide the small amount of forward bias on the transistor pair to keep crossover distortion minimal. In parallel with the trimpot is a 50-ohm thermistor with a negative temperature coefficient; as the circuitry warms, its resistance decreasing decreases. the bias current This reduces to reduce VBE the on threat both Q105 of thermal and Q106, runaway. The base of each driver transistor is tied to ground through a diode and a 2.2 kΩ trimpot in series; these set the current limiting threshold for their respective signal polarities. The collector of each driver transistor directly drives the bases of its output transistors, which are the main power-handling signal devices. If you’re not familiar with the grounded-collector scheme, To input op amp U101:1 +14V 5 08 K 800015._R7R^U10:1 LM13600M 11 + 3 7 5 2 5 05 80089 1 _0 0 001R00_11^11RRR5 ^0K 3 800.010_R1R^5 7 008K 109R_3R^From clip detection 1 - 4 8 A1 R110 270 6 V 0^R_0805 54 5 K 220001-115_01RC0RQ100 1^3906 CLIP LIMIT SWITCH (Open to defeat -14V clip limiter) RMX Series Technical Service Manual (2RU models) 9 TD-000098-00 rev. C R115 820 ^R_1206

DC protection The RMX1850HD and RMX2450 have a crowbar circuit, based on a triac and two silicon controlled rectifiers, on the output to protect against DC faults. If an amp channel puts out a DC voltage, which could be the result of a component or circuit failure, it will first trigger either D119 or D120, depending on the polarity of the voltage. The triggered SCR will in turn trigger triac Q113, shorting the output to ground through fuse F100. The fuse will blow, safeguarding the speaker load from the DC fault. The output sections of the RMX850 and RMX1450 are AC coupled. form a voltage divider between the two channel outputs. If the output signals are mirror images, the voltage at the junction of the resistors (bus BR_BAL) will be zero. If the signals are not mirror images—for example, one channel is defunct, distorting, or reduced in gain—a voltage will appear on BR_BAL. Through DIP switch 7, the BR_BAL bus becomes bus BR_CUT and feeds the bases of transistors Q8 and Q6, which are part of a 4-transistor circuit across the +15V and -15V rails that supply the op amps and the input circuitry. If the voltage on BR_CUT goes positive enough to forward-bias Q8, the transistor’s collector will collapse the +15V rail. At the same time, the emitter current from Q8 will flow Class H The RMX1850HD and RMX2450 utilize a two-step Class H output section. It is essentially a Class AB+B circuit but with two sets of bipolar supply rails. On both the positive and the negative sets of rails, a comparator circuit, called a “step driver,” compares the audio signal to the lower rail voltage. When necessary to fully reproduce the signal’s voltage swing—just before the instantaneous signal voltage reaches the lower rail voltage—the step driver turns on a TMOS power FET to pull the output transistors’ supply rail up from the lower voltage to the higher one, and then back down again when the signal allows. By keeping the transistors’ supply rails low whenever possible, the devices dissipate less unused power and generate less waste heat, making the amplifier more efficient than a straight class AB amplifier with the same power points (Figure 1.13). The comparators are 311-type ICs: U170 on the positive step and U171 on the negative. Each one drives a high-gain complementary transistor pair (2N3904 + 2N3906), which drive the gate of their respective MOSFET. +VHI +VLO Power Power saved saved 0-VLO -VHI Figure 1.13. A two-tier class H amplifier circuit operates on the lower voltage rails until the signal amplitude requires the higher voltage. Bridged mono operation and protection When the amplifier is operated in bridged mono, its two channels work in tandem to produce up to twice the voltage swing that a single channel is capable of. To do this, Channel 2 produces a signal identical to Channel 1’s, but opposite in polarity—in other words, a mirror image. Channel 2’s signal feed (bus BR_MONO_FEED) is an attenuated version of the signal on Channel 1’s speaker bus. Closing DIP switch #6 (set to “BRIDGE MONO ON”), connects the BR_MONO_FEED bus on Channel 1 to the BR_RET bus on Channel 2. The BR_RET bus drives the non-inverting input of op amp U201:2 directly. With two channels operating as one, but each having its own feedback and protection circuitry, it is vital to keep both running as mirror images. A protection circuit monitors the balance between Channel 1’s and Channel 2’s signals. Resistors R22 and R23 (R22A, R22B, R23A, and R23B on the RMX2450) are equal in value and through R25 and into the emitter of Q7, forward-biasing it, too. The collector of Q7 will then collapse the -15V rail. Similarly, if BR_BAL goes sufficiently negative, it will forward-bias Q6, in turn forward-biasing Q9, and these will collapse the ±15V rails. With the rails collapsed, the op amp and the input circuitry will not function, which will mute the audio.

10 QSC Audio Products, LLC 2. Component identification and pinout NE5532AN Dual operational amplifier (part number IC-000211-GP; was 3130-2430-0) 1234 LM311 Voltage comparator (part number IC-000214-GP; was 3130-9240-0) NE5517D Dual operational transconductance amplifier (may be substituted by LM13600 or LM13700) OUTPUT A 8(part number IC-000212-GP; was 3131-9730-0) INVERTING INPUT A 7NON-INVERTING INPUT A6V- 5 4N29 Opto-isolator (part number IC-000213-GP; was 3130-9270-0) 123 V+ 1234 A B OUTPUT B AMP BIAS INPUT A 116AMP BIAS INPUT B INVERTING INPUT B DIODE BIAS A 215DIODE BIAS B NON-INVERTING INPUT B NON-INVERTING INPUT A314NON-INVERTING INPUT B INVERTING INPUT A 4A B 13INVERTING INPUT B OUTPUT A 512OUTPUT B V- 611V+BUFFER INPUT A 710BUFFER INPUT B BUFFER OUTPUT A 8 9 BUFFER OUTPUT B GROUND 1 8NON-INVERTING INPUT 7INVERTING INPUT6V- 5 V+ 2N5064 Sensitive gate thyristor (part number QD-000350-10; was 4860-5250-5) K A G 1 2 OUTPUT BALANCE/ STROBE BALANCE 654 IRFZ44 TMOS power field effect transistor (part number QD-000347-GP; was 490F-Z440-5) 2N3904 (NPN) Small-signal transistor (part number QD-000204-GP; was 4860-0640-3) 2N3906 (PNP) Small-signal transistor (part number QD-000205-GP; was 4853-9060-3) C 3 B E G D S RMX Series Technical Service Manual 11 2SC5200 MAC224 Triac (discontinued; see BTA41 triac (PNP) Power transistor below) (part number QD-000209-GP; was 4860-5050-5) (part number QD-000221-GP; was 8910-0482-0) 2SA1943 (NPN) Power transistor (part number QD-000208-GP; was 4860-5060-5) TOSHIBA 1 2 G TTMMMJE15032 (NPN) Driver transistor (part number QD-000207-GP; was 4860-5020-5) MJE15033 (PNP) Driver transistor (part number QD-000210-GP; was 4860-5030-5) B C E BTA41 Triac (part number QD-000261-GP; replaces discontinued MAC224 Triac) B C E 10 kΩ Potentiometer (gain control) (part number PT-310006-GP; was 4750-6200-0; used April 2002 and earlier with 10 μF C106) 2.5 kΩ Potentiometer (gain control) (part number PT-225000-GP; was 4751-0420-0; used May 2002 and later with 47 μF C106) potentiometer value printed on back A1 A2 G Note: To install the BTA41 Triac on a channel module circuit board that originally held a MAC224 Triac, first mount it to an adapter (QSC part number SR-000117-00) and then solder the adapter to the circuit board. See Service Bulletin RMX0008 for more information. The Triac and adapter are available together as a kit, QSC part number SG-000522-00. 12 QSC Audio Products, LLC 3. Troubleshooting: Symptoms, causes, & remedies When first checking the operation of an amplifier on the bench, always turn your variable transformer down to zero before plugging the amplifier in. After you turn the amplifier on, gradually turn up the AC voltage as you observe the amplifier’s behavior and its current draw; this will help you determine what, if anything, is wrong with it. If you see or smell smoke, flames, or any other signs of short circuits or excessive current draw, quickly turn the AC back down to zero. If no such problems occur, it is usually safe to turn the AC up to the amplifier’s full operating voltage for further testing. 3.1 Excessive current draw Slow increase in current draw (current doesn’t become excessive until about half of the amplifier’s full AC The customer complains of blowing circuit breakers or fuses, or operating voltage; amplifier may pass signal) burning smell or smoke. • The bias is severely misadjusted, or bias diodes D108, D109, Symptoms covered: D208, or D209 is defective. • An oscillation is causing excessive current demand. • Fuses blow immediately • The amplifier quickly gets very hot • Line circuit breakers trip at turn-on • The amplifier hums loudly and the chassis vibrates • The amplifier emits smoke • The amplifier gives off a burning smell If the symptoms indicate a possible problem in the channel circuits 3.2 Protection, muting, and turn- on/turn-off delay problems The customer complains of amplifier locking up, or not turning on and off correctly. Symptoms covered: • Both channels do not come out of protect • Amplifier will not thermally shut down when it should • Power LED doesn’t light • Too little or too much muting delay • No clip limiting • Fan doesn’t run, or runs always at high speed Possible situations: Both channels stay in protect after turn-on • Q4 or Q5 is shorted base-to-emitter. • Voltage across D8 should be 14 to 15 volts DC. If it is low, check D8 and R10; also, C7 and C8 is leaky. • D9, R4, and/or R7 is open. Runaway current draw (current increases sharply at about 25 to 33% of the amplifier’s full AC operating voltage) One or more reservoir capacitors is reversed. CAUTION: the gas buildup in a reversed electrolytic capacitor can cause it to vent explosively. Immediately turn off power and let the capacitor cool down before replacing it. or output sections, you can isolate either channel module from the power supply by pulling its fuses from the AC board. Possible situations: Excessive current with no signal present If the amplifier seems to run hot and draws higher-than-normal current when idling at full AC voltage, the cause could be bias misadjustments in the output circuitry of one or both channels. See the calibration procedures in the next section. In the RMX2450, the cause might also be blown step FETs; see service bulletin RMX0006. Fast increase in current draw (current increases rapidly at only a few volts AC) • The main bridge rectifiers BR100 and/or BR200 (all models) and BR101 and/or BR201 (RMX2450) is reversed or shorted. • Supply clamp diode pairs D117 and D118 and/or D217 and D218 is reversed or shorted. • The drivers and/or power transistors is shorted on both polarities (NPN and PNP) on one or both channels. Moderate increase in current draw (current increases slowly, doesn’t become excessive until about 1⁄4 of the amplifier’s full AC operating voltage) • One polarity’s drivers and/or power transistors (NPN or PNP) is shorted, on one or both channels. • Individual supply clamp diodes D117, D118, D217, or D218 is reversed or shorted. • Bias diodes D108, D109, D208, or D209 or bias trimpots R131 or R231 is open. RMX Series Technical Service Manual 13 The amplifier will not thermally shut down when it over- heats Check for shorted D9, R4, or R7; check also for open LD1 (“POWER” LED), R2, or R5. Too much or too little muting delay • Excessive delay at turn-on: check for open LD1, R2, or R5; check for incorrect R10 or R15; check for shorted D9; also see service bulletin RMX0002. • Too short at turn-on (amplifier unmutes before the circuits stabilize, causing a thump): check for incorrect or bad C7, C8, or R10. • Amplifier doesn’t stay muted at turn-off: see service bulletin RMX0003 Power LED doesn’t light Check for open or shorted LD1; check R2. No clip limiting • U10 is defective. • DIP switches SW1:1 or SW1:10 is defective. Fan doesn’t run • The fan is defective. • Check the fan connection to the AC board. • Check R1 and BR1 on the AC board. Fan runs always on high speed • Q3 and/or U2 are shorted. • Check PTC thermistors R4 and R7. The output signal collapses when driving a normal speaker load • R139, R140, R239, and/or R240 is misadjusted. • Check R118, R119, R218, and R219. The supply rails are OK with no signal but collapse with a signal • C112, C113, C212, and/or C213 is leaky. • Check C114, C124, C214, and C224. The amplifier gets too hot with no load • Bias trimpots R131 or R231 are misadjusted, burned, or open. • Bias diodes D108, D109, D208 and/or D209 are incorrect (should be 1N4934). • If the amplifier is producing high-frequency oscillations, check C114, C124, C214, and C224. • Check resistors R136, R137, R236, and R237. • Op amp U101 or U201 is unstable. One channel clips prematurely • R146 or R147 (Channel 1) or R246 or R247 (Channel 2) are open. • R139 or R140 (Channel 1) or R239 or R240 (Channel 2) are misadjusted. • Check R157, R158, R198 (RMX1850HD and RMX2450 only), D115, and D116 (Channel 1) or R157, R258, R298 (RMX1850HD and RMX2450 only), D215, and D216 (Channel 2). • (RMX850 and RMX1450) Check R118 and R119 (Channel 1) or R218 and R219 (Channel 2). • R130 or R132 (Channel 1) or R230 or R232 (Channel 2) is open. Excessive hum in loudspeaker when no signal is present (RMX850 and RMX1450) Check R118, R119, R218, and R219. 3.3 Faults with signal present Excessive current draw with signal present (RMX1850HD and RMX2450) The customer compains that the amplifier passes a signal but doesn’t run correctly. • Check triacs Q113 and Q213. • Check D119, D120, D219 and D220. Symptoms covered: • The output signal breaks up or is distorted • “Ringing” sound in loudspeaker when no audio signal is present • The output signal collapses when driving a normal speaker load • Supply rails OK with no signal, but collapse when a signal passes • The amplifier gets too hot • One channel clips prematurely • Excessive hum in loudspeaker when no audio signal is present Possible situations: The output signal breaks up or is distorted • (RMX850 and RMX1450) Check the hum-null resistors R118, R119, R218, and R219. • Check the ground traces for continuity among speaker ground, input ground, and AC ground. “Ringing” sound in loudspeaker when no audio signal is present • Check C114, C124, C214 and C224. • Check or replace dual op amp U101 or U201. 3.4 Instability The customer complains of gain problems, spurious noises, or oscilla- tions. Symptoms covered: • General output distortion • “Ringing” sound in loudspeaker trailing an audio signal • Excessive crossover distortion • The output waveform appears fuzzy on an oscilloscope Distinguish among the different symptoms of fuzziness (instability), ringing (momentary instability after a transition), crossover distor- tion (often causing ringing), or general distortion. Possible situations: General distortion in the output signal • Severe distortion, at any load, often with abnormally high current draw: check the slew rate capacitors C114, C115, and 14 QSC Audio Products, LLC

Possible situations: Excessive current into short (insufficient limiting) • If the op amp rails are dropping to ±5 to 6 volts as they should: the 5.6V zener diodes D107 and/or D110 (Channel 1) or D207 and/or D210 (Channel 2) are reversed or shorted. • If high crossover distortion is present: bias diodes D108 or D109 (Channel 1) or D208 or D209 (Channel 2) are shorted. Excessive current into short (op amp rails are not drop- ping) • The op amp U101 (Channel 1) or U201 (Channel 2) is defective, with insufficient output current. • Clip LED LD100 (Channel 1) or LD200 (Channel 2) and/or its rectifying diodes (Channel 1: D102, D103, D105, D106; Channel 2: D202, D203, D205, D206) are open. • When driving a short circuit, the output section’s positive and negative supply rail voltages should be equal, within 3 volts. If they aren’t, check D107, D110, R146, and R147 (Channel 1) or D207, D210, R246, and R247 (Channel 2). Weak current into 2Ω or short (excessive or premature limiting) • Bias resistors R130 and R132 (Channel 1) or R230 and R232 (Channel 2) are too high. • Driver transistors (Channel 1: Q105, Q106; Channel 2: Q205, Q206) have very low gain. • One or more emitter resistors in the output section are open. Current OK at 2Ω, weak into short • LD100, D102, D103, D105, or D106 (Channel 1), or LD200, D202, D203, D205, or D206 (Channel 2), are shorted. • Zener voltage of diodes D107 or D110 (Channel 1), or D207 or D210 (Channel 2), is too high. Current limits properly into short, but current is weak at 2Ω • If the op amp rails are low (< 14–15 volts) when driving a 2- ohm load without clipping, check the resistors R157 and R158 (Channel 1, all models), R198 (Channel 1, RMX1850HD and RMX2450 only) and diodes D115 and D116 (Channel 1, all models), or R257 and R258 (Channel 2, all models), R298 (Channel 2, RMX1850HD and RMX2450 only) and diodes D215 and D216 (Channel 2, all models). • If the op amp rails are normal (14–15 volts) when driving a 2-ohm load without clipping, usually the output section gain is too low: weak driver transistors, open output transistors, or open emitter resistors. Check the value of the driver transistors’ emitter resistors, too: R146 and R147 (Channel 1) or R246 and R247 (Channel 2). Rail voltages unequal The balance between the positive and negative rail voltages is set by a voltage divider comprising resistors R118 and R119 (Channel 1) and R218 and R219 (Channel 2). If the amplifier channel passes a signal but clips unevenly due to unequal rail voltages, this voltage divider is the likely culprit. C116 (Channel 1) or C214, C215, and C216 (Channel 2). • Moderate distortion, especially with light loading: stability capacitors C124 and C126 (Channel 1) or C224 and C226 is too high in capacitance; also check the slew rate capacitors C114, C115, and C116 (Channel 1) or C214, C215, and C216 (Channel 2), and the output filter resistors R161, R162, R154, and R155 (Channel 1) or R261, R262, R254, or R255 (Channel 2). • Distortion with low gain: check the feedback shunt components R120, R138, and C125 (Channel 1) or R220, R238, or C225 (Channel 2); also check for broken circuit traces around the components; U101 (Channel 1) or U201 (Channel 2) is defective or its socket is contaminated. Ringing sound trailing the audio signal • This usually indicates marginal instability and is usually triggered by the signal passing through zero volts (the crossover point). Check the stability components and output filters. • With a sine wave test signal, use an oscilloscope to check for excessive crossover notch at the output signal’s zero crossings. Excessive crossover distortion (unbalanced, asymmetrical, or excessively large crossover notch) • Severe crossover discontinuity: bias diodes D108 or D109 (Channel 1) or D208 or D209 (Channel 2) are shorted. • Moderate discontinuity: bias diodes D108 or D109 (Channel 1) or D208 or D209 (Channel 2) are out of spec. • R131 (Channel 1) or R231 (Channel 2) is defective. • Base resistors R136 or R137 (Channel 1) or R236 or R237 (Channel 2) are open. Also check the NTC thermistors R134 (Channel 1) or R234 (Channel 2). 3.5 Power supply and rail balancing problems Symptoms covered: • Insufficient or excessive current limiting into a shorted load • Op amp rails too high with a shorted load • Uneven voltages on supply rails A channel’s output current should remain unaffected when driving resistive loads as low as 2 ohms per channel. When driving a short circuit, the current limiting circuit should collapse the output to a lower current. This is done by dropping the op amp’s supply rails from a normal ±14–15 volts down to about ±5–6 volts. Normally, the output signal helps replenish the op amp supply rails through D115 and D116 (Channel 1) and D215 and D216 (Channel 2), but a short circuit or excessively low load impedance prevents the replenishment, and the op amp rails collapse because they can’t supply enough current to let the op amp drive both the clip LED and the driver transistors. The current limit trimpots R139, R140, R239, and R240 permit adjustment of the current limit thresholds. See the RMX calibration section of this manual for adjustment procedures.

RMX Series Technical Service Manual 15 4. RMX calibration procedures 4.1 Setting bias 4.2 Setting positive and negative Always set the bias • after replacing any output or driver transistor. current limits • after replacing any diode or resistor in the driver/output circuitry. • if the amplifier seems to run too hot at idle. • if the amplifier exhibits crossover distortion. Tools and resources you will need • Oscilloscope • 2-ohm resistive load (rated for at least 1200 watts) The bias network sets the quiescent base current in the NPN and • Shorting connector for amplifier output PNP driver transistors, which in turn sets the quiescent current in • Variable AC transformer (e.g., Variac, Powerstat, etc.) rated for the output transistors. The driver transistors should both be slightly 25A (120V) or 12A (230V). Make sure the AC supply is appropri- “on” at idle so that the transitions of the signal voltage between ate for the amplifier. positive and negative are smooth and free of gaps or glitches. Too • 1 kHz audio sine wave generator much bias current will cause the amplifier to run hotter than it • Digital multimeter should, especially at idle, while too little will cause noticeable • Clamp-on digital current meter (e.g., Fluke 30 Clamp Meter) crossover distortion, especially at low signal levels. • Small flat screwdriver (non-conductive) for adjusting trimpots The amplifier circuitry must be cool, or at least within a couple degrees of ambient air temperature, and the top cover must be removed. If the driver and output transistors are significantly warmer than the ambient air, leave the amplifier off and let it cool before proceeding. Procedure 1. Set the audio sine generator to 1 kHz at 1 volt RMS and connect it to Channel 1's input. Connect a 2-ohm load and the oscilloscope probe across Channel 1's output. Before turning the amplifier on to set bias on one or both channels, familiarize yourself with the locations of the trimpots (R131 and R231) and the voltage measuring points so you can work quickly but 2. Turn up Channel 1's gain control partway. On the oscilloscope you should see the amplitude of the sine wave increase accordingly. thoroughly. If the amplifier warms up before you finish setting the 3. Turn the gain control back down and apply a short circuit bias, you will need to shut the amplifier off and let it cool down across the output terminals of Channel 1. Clamp a current before you resume. probe either onto one of the brown wires running to the AC Tools and resources you will need: • Small flat screwdriver (non-conductive) for adjusting trimpots • DC voltmeter • AC power switch or onto the gray output wire from channel 1's module. 4. Turn the gain control all the way up. Adjust trimpots R139 and R140 equally until the current measured falls within the range shown in Table 1. 5. Turn the gain control all the way down and remove the short Procedure circuit so the channel drives the 2-ohm load. Turn the gain control 1. Turn the amplifier’s gain controls all the way down. No test signal is needed. 2. Plug the amplifier into an appropriate AC source. Turn the amplifier on. 3. Channel 1: While measuring the DC voltage across resistor R146, adjust trimpot R131 to obtain the voltage listed in Table 1. back up until the output clips. The voltage at which the signal starts to clip should fall within the range shown in Table 1. If the clipping is asymmetrical, that is, the signal clips on either the positive or negative side first, adjust R139 to make it symmetrical. 6. Turn the gain control down. If the amp has begun to warm up shut it off and let it cool a few minutes before proceeding with Channel 2. 4. Channel 2: While measuring the DC voltage across resistor R246, adjust trimpot R231 to obtain the voltage listed in Table 1. 7. Repeat steps 1 through 5 for Channel 2. Use trimpots R239 and R240 to adjust the current limiting in steps 11 and 12. After setting the bias, calibrate the positive and negative current limiting; instructions for the procedure follow below. 8. Turn both channels’ gain controls all the way down. Clamp the ammeter onto one of the amp’s AC wires and check the amp’s idle current. If the amplifier is still at about room temperature, the idle current should match the value shown in Table 1. 16 QSC Audio Products, LLC Table 1: Bias and current limit adjustments Calibrations Adjust RMX850 RMX1450 RMX1850HD RMX2450 Channel 1 bias: DC voltage across R146 R131 0.16 V 0.14 V 0.07 V 0.07 V Channel 2 bias: DC voltage across R246 R231 0.16 V 0.14 V 0.07 V 0.07 V Output current into shorted load Channel 1: R139 & R140 Channel 2: R239 & R240 4–4.5 A 4–5 A 7.5–8.5 A 8.5–9 A AC current when driving shorted load* Channel 1: R139 & R140 Channel 2: R239 & R240 3.75–4.5 A 4.5–5.5 A 4.5–5.5 A 5.5–6.5 A Clipping voltage into 2 ohms (RMS) Channel 1: Adjust R139 for symmetry Channel 2: Adjust R239 for symmetry 26–29 V 33.5–37.5 V 42–44 V 44–49 V Clipping voltage into 2 ohms (peak) Channel 1: Adjust R139 for symmetry Channel 2: Adjust R239 for symmetry 36.8–41 V 47.4–53 V 59.3–62.2 V 62.2–69.3 V Idle AC demand* (at ambient temperature; higher when hot) 0.4 A, ±10% 0.4 A, ±10% 0.6 A, ±10% 0.6 A, ±10% *Figures shown are for 120V amplifiers; multiply current by 0.5 for 230V or 1.2 for 100V. RMX Series Technical Service Manual 17 5. Servicing RMX amplifiers 5.1 Mechanical disassembly and re-assembly 9. Slide the channel modules toward the back so the potentiom- eter shafts and front panel LEDs are clear of their holes in the front panel. Lift the channel modules out from the chassis. Replacing components will usually require removing the channel 10. Re-assembly is the opposite of disassembly. modules and/or AC board from the amplifier chassis, especially on the RMX850 and RMX1450, which have single-side printed circuit Removing the AC board boards. The RMX2450 has double-side boards; many of the through- The AC board provides AC voltage selection, rectification of the hole components on the upper side of the board can be unsoldered transformer secondary current, and a regulated DC supply for the and soldered from the top side of the board, so removing modules or cooling fan. It seldom needs to be replaced unless it is physically boards is not always necessary. damaged itself. Most failures involving the AC board can be See the fold-out assembly guides on pages 25 and 26 in this repaired through replacement of individual components. manual for assistance. WARNING: Regulatory agencies require that any operating NOTE: As viewed from the front of the amplifier, the left channel module is Channel 1 and the right is Channel 2 except in the RMX2450; its right module is Channel 1, and its left is Channel 2. voltage conversions from 120 volts to any other voltage be done only by QSC’s factory service. Any other operating voltage conversions may be done only by a QSC-authorized service center or international distributor. Removing the channel modules 1. Disconnect the amplifier from AC power and allow at least 10 1. Disconnect the amplifier from AC power and allow at least 10 minutes for internal voltages to bleed down. minutes for internal voltages to bleed down. 2. Remove the four screws that fasten the fan, fan shroud, and 2. Using a Philips screwdriver, remove the screws that fasten the top cover to the chassis. Also remove the top cover’s four fan guard to the chassis. Lift the fan shroud out from the chassis. recessed screws that fasten it to the heat sinks. As you 3. Disconnect the wires that connect to the channel modules. All remove screws, set them aside, but also make note of where of the large single wires attach to the channel modules with each type is used so you can properly re-assemble the 1⁄4-inch quick-connect tabs that are detached by pulling them amplifier. straight up. The remaining three black wires disconnect at the 3. Lift the top cover up at the rear and carefully pull it toward the left channel module with a detachable header. back, removing the five hooks on the front edge from their slots If you are planning to replace the AC board with another, in the chassis. carefully cut each of the transformer wires connecting to the 4. Pull the gain control knobs straight off from the potentiom- eter shafts. 5. Tip the amplifier up on its side and remove the four screws that fasten the heat sinks to the chassis. 6. Set the amplifier back down and remove the screws that mount the channel modules to the chassis standoffs. There are six screws in the left module and five in the right one. 7. Remove the four screws that fasten the fan, fan shroud, and fan guard to the chassis. Lift the fan shroud out from the chassis; this will give you room to properly remove the modules from the chassis. board just above its solder tab. You must leave enough slack to allow connection to the new AC board. Remove the old heat shrink tubing from the wires and strip the wire ends about 0.25 inch or 6.3 mm. 4. Remove the five screws that attach the AC board to the chassis standoffs. Lift the board out from the chassis. 5. Re-assembly is the opposite of disassembly. If you’re using a new AC board, slide new pieces of heat shrink tubing over the transformer wires before you solder them to the appropriate tabs on the board; after soldering, cover the joints with the tubing and use a heat gun or other heat source to shrink them tightly. 8. Disconnect the wire and cable connections to the channel modules. All of the connections are either detachable headers or 1⁄4-inch quick-connect tabs that are disconnected by pulling them straight up. No unsoldering is necessary. 18 QSC Audio Products, LLC 6. Replacement parts 6.1 RMX850 Replacement Parts QSC part # Old QSC part # Description Qty. Notes or Component Reference Misc. CH-000198-GP 4134-8432-0 RACK-MOUNT BRACKET 2 CO-000211-GP 2113-1144-0 AC INLET, 250V 15A 1 MS-000138-GP 8900-9050-1 DC FAN 24V 80X80 (+5V) 1 PL-000147-GP 2444-1001-1 KNOB RMX PLASTIC BLACK 2 SW-000086-GP 5200-3532-0 CIRCUIT BREAKER 10A 1 For 120V models SW-000088-GP 5200-4717-0 ROCKER POWER SWITCH 1 SW-000093-GP 5200-4730-0 CIRCUIT BREAKER 5A 1 For 230V models WC-000181-GP 7010-9640-0 AC CORD 15A, 14 AWG, ISA 1 For 120V models WC-000213-GP 7009-8620-0 AC CORD SET CE 1 For 230V models *XF-000117-GP 1806-2505-0 POWER TRANSFORMER RMX850 120V/230V 1 Discontinued; replaced by XF-000314-GP and XF-000315-GP XF-000314-GP 1806-3983+0000 TRANSFORMER, 230V,RMX850 1 For 230V models XF-000315-GP 1806-3982+0000 TRANSFORMER, 120V,RMX850 1 For 120V models WP-008502-00 AC Board Assembly (was PCB-QZ010C-PSU) CA-422005-GP 153R-224K-5-Y1 CM 250V 0.22uF 10% RL 2 C127, C227 CA-810006-GP 157Q-108M-5-X9E 1000UF 35V 20% ELECTROLYTIC 1 C6 HW-000020-GP 4134-8851-0 FUSE HOLDER 6.3MM 4 REF: F100, F200 IC-000213-GP 3130-9270-0 IC 4N29 1 U2 MS-000126-GP 5400-0831-0 HEATSINK, BRIDGE RECTIFIER 1 REF: Q3 MS-000129-GP 5100-1030-3A FUSE T10A 125V/250V 2 F100, F200 QD-000200-GP 4840-1760-0 DIODE RECT 1A 200V DB103 1 BR1 QD-000214-GP 4860-2620-5 TR TIP31C SAMSUNG 1 Q3 QD-000227-GP 4840-2150-0 BRIDGE RECTIFIER 400V 25A 2 BR100, BR200 RE-000005-GP 8910-0273-0 POLYSWITCH 1.1A 0.15 OHM 1.5W 1 R1 RE-000270-GP 8910-0275-0 THERMAL NTC 30A 1 OHM 1 R21 RE-012004-GP 4719-121J-1-X RMF 2W 120 OHM 5% 1 R17 RE-120003-GP 4701-202J-C RCF 1/8W 2K 5% ATS 1 R13 RE-168002-GP 4701-682J-C RCF 1/8W 6.8K 5% ATS 2 R9, R14 4701-474J-C RCF 1/8W 470K 5% ATS 1 R12 WP-008503-00 Channel 1 Module Assembly (left) (was PCB-QZ010C-PWR1) CA-233004-GP 153F-332J-5-KW CM 50V .0033UF 5% RL 2 C117, C118 CA-322006-GP 153F-223J-5-LQ CM 50V 0.022UF 5% RL 2 C116, C119 CA-368004-GP 153R-683J-5-WWM 0.068UF 5% 250V FILM DIPPED 1 C124 CA-547008-GP 157R-475M-5-OV 4.7UF 20% 250V ELECTRO RAD 1 C7 CA-647005-GP 157F-476M-5-LU CE 50V 47UF 20% RL 1 C8 CA-847001-GP 8910-0062-0 CE 80V 4700U 20% RL 25X 2 C120, C121 PT-110002-GP 4756-1016-3-06 TRIM POT,100,20 PCNT,0.15W,, 1 R131 QD-000198-GP 3700-4531-G LED 4.7MM GRN W/STAND 1 LD1 QD-000202-GP 4804-0040-1 DIODE IN4004 AL 5 D1, D11, D12, D117, D118 QD-000203-GP 4838-15V6-2 DIOD ZNR 15V 1W SILICON EPIT 2 D8, D15 QD-000206-GP 4804-9340-2 DIOD RECT FAST, IN4934 AT 2 D108, D109 QD-000207-GP 4860-5020-5 XISTOR NPN 250V 0.5A MJE15032 1 Q105 QD-000208-GP 4860-5060-5 TR 2SA1943 T0-3P (L) 3 Q103, Q107, Q109 QD-000209-GP 4860-5050-5 TR 2SC5200 T0-3P (L) 3 Q108, Q110, Q112 QD-000210-GP 4860-5030-5 XISTOR PNP 250V MJE15033 1 Q106 QD-000211-GP 4860-8890-0 TR MPSA06 VCE 80V NS 1 Q5 *QD-000212-GP 4837-5B10-2 DIODE ZENER 1/2W 5.5-5.8V 2 D107, D110 (December 2003 and earlier) *QD-000269-GP * DIODE ZENER 5.1V 5% .25W DO-35 2 D107, D110 (January 2004 and later) RE-.02201-GP 471A-022K-5-N 0.22 OHM 5% 3W THK FLM 6 R142, R148, R149, R152, R153, R159 RE-.56006-GP 4719-5R6J-1-X RMF 2W 5.6 OHM 5% 1 R160 RE-.68001-GP 4718-6R8J-1-X RMF 1W 6.8 OHM 5% 2 R146, R147 RE-000250-GP 8910-0488-0 NTC RES 50 OHM 1 R134 RMX Series Technical Service Manual (2RU models) 19 TD-000098-00 rev. C RMX850 Channel 1 Module Assembly (continued) QSC part # Old QSC part # Description Qty. Notes or Component Reference RE-000260-GP 8910-0274-0 THERMAL PTC 60C 100 OHM 1 R7 RE-001201-GP 471B-120J-1-X 12 5% 5W METAL OXIDE FILM 2 R161, R162 RE-002202-GP 4718-220J-2-P RMF 1W 22R 5% AT FP 2 R136, R137 RE-082005-GP 471B-821J-1-X RMF 5W 820 OHM 5% AL METAL 2 R157, R158 RE-120007-GP 471B-202J-1-X RMF 5W 2K 5% AL METAL 2 R133, R135 RE-122006-GP 4756-2226-3-06 SVR 2.2K H3 7X7 2 R139, R140 RE-215006-GP 4719-153J-1-X RMF 2W 15K 5% AL METAL 2 R2, R5 XF-000190-GP 1804-1030-0 SPRING COIL 2uH 1 L100 Channel 1 SMT parts CA-210011-GP 150H-102J-6-CF CC 100V 0.001U 5% 1206 1 C114 CA-222007-GP 150F-222K-6-CF 50V .0022UF 10% 1206 1 1 C115 QD-000201-GP 4804-1480-3 DIODE LL4148 SM 15 D2–D7, D9, D14, D104, D111–D116 QD-000204-GP 4860-0640-3 XISTOR NPN 60V 200MA 3904 SOT-23 4 Q8, Q9, Q101, Q102 QD-000205-GP 4853-9060-3 XISTOR PNP 40V 0.2A TR3906 SOT-23 3 Q4, Q6, Q7 QD-000213-GP 4860-5110-3 TR KST42 1 Q1 RE-004702-GP 4720-470J-J RMG 1/10W 47 OHM 5% 0805 2 R25, R124 RE-082003-GP 4721-821J-6 RMG 1/8W 820 OHM 5% 1206 2 R130, R132 RE-115004-GP 4720-152J-J RMG 1/10W 1.5K 5% 0805 1 R129 RE-120004-GP 4720-202J-J RMG 1/10W 2K 5% 0805 1 R8 RE-168002-GP 4721-682J-6 RCF 1/8W 6.8K 5% ATS 1 R19 RE-210006-GP 4720-103J-J RMG 1/10W 10K 5% 0805 1 R128 RE-247004-GP 4721-473J-6 RMG 1/8W 47K 5% 1206 1 R125 RE-315003-GP 4721-154J-6 RMG 1/8W 150K 5% 1206 1 R10 RE-322001-GP 4721-224J-6 RMG 1/8W 220K 5% 1206 2 R18, R27 RE-322002-GP 4720-224J-J RMG 1/10W 220K 5% 0805 1 R26 RE-347002-GP 4721-474J-6 RMF 1/8W 470K 5% ATS 1 R15 RE-410002-GP 4721-105J-6 RMG 1/8W 1M 5% 1206 2 R3, R6 WP-008504-00 Channel 2 Module Assembly (right) (was PCB-QZ010C-PWR2) CA-233004-GP 153F-332J-5-KW CM 50V .0033UF 5% RL 2 C217, C218 CA-322006-GP 153F-223J-5-LQ CM 50V .022UF 5% RL 2 C216, C219 CA-368004-GP 153R-683J-5-WWM 0.068UF 5% 250V FILM DIPPED 1 C224 CA-415004-GP 153F-154J-5-NLM 0.15UF,5%,50V,CM,,RBT,7.5X 4 C108, C109, C208, C209 CA-422006-GP 153F-224J-5-NLM CM 50V 0.22UF 5% RL 2 C107, C207 CA-610020-GP 157F-106M-5-LUN CE 50V 10UF 20% RLT 5 X 11 2 C106, C206 CA-710009-GP 157E-107M-5-KW CE 25V 100UF 20% RL 2 C105, C205 CA-722006-GP 157E-227M-5-PU CE 25V 220UF 20% RL 4 C112, C113, C212, C213 CA-847001-GP 8910-0062-0 CE 80V 4700UF 20% RL 25X 2 C220, C221 CO-000222-GP 2101-1991-0 8-PIN IC SOCKET 2 REF: U101, U201 IC-000211-GP 3130-2430-0 IC NE5532 OP AMP 2 U101, U201 PT-110002-GP 4756-1016-3-06 TRIM POT,100,20 PCNT,0.15W,, 1 R231 *PT-225000-GP *4751-0110-0 RES VAR 2.5K RT ANGLE PCB 2 R112, R212 (May 2002 and later) *PT-310006-GP *4750-6200-0 VR V012CPH, D-SHAFT 10K 2 R112, R212 (April 2002 and earlier) QD-000197-GP 3700-4529-R LED 4.7MM RED W/STAND 2 LD100, LD200 QD-000199-GP 3700-4530-Y LED 4.7MM W/STAND YELLOW 2 LD101, LD201 QD-000202-GP 4804-0040-1 DIODE IN4004 AL 4 D10, D13, D217, D218 QD-000203-GP 4838-15V6-2 DIOD ZNR 15V 1W SILICON EPIT 4 D100, D101, D200, D201 QD-000206-GP 4804-9340-2 DIOD RECT FAST, IN4934 AT 2 D208, D209 QD-000207-GP 4860-5020-5 XISTOR NPN 250V 0.5A MJE15032 1 Q205 QD-000208-GP 4860-5060-5 TR 2SA1943 T0-3P (L) 3 Q203, Q207, Q209 QD-000209-GP 4860-5050-5 TR 2SC5200 T0-3P (L) 3 Q208, Q210, Q212 QD-000210-GP 4860-5030-5 XISTOR PNP 250V MJE15033 1 Q206 *QD-000212-GP 4837-5B10-2 DIODE ZENER 1/2W 5.5-5.8V 2 D207, D210 (December 2003 and earlier) *QD-000269-GP * DIODE ZENER 5.1V 5% .25W DO-35 2 D207, D210 (January 2004 and later) RE-.02201-GP 471A-022K-5-N 0.22 OHM 5% 3W THK FLM 6 R242, R248, R249, R252, R253, R259 RE-.56006-GP 4719-5R6J-1-X RMF 2W 5.6 OHM 5% 1 R260 RE-.68001-GP 4718-6R8J-1-X RMF 1W 6.8 OHM 5% 3 R20, R246, R247 RE-000250-GP 8910-0488-0 NTC RES 50 OHM 1 R234 RE-000260-GP 8910-0274-0 THERMAL PTC 60C 100 OHM 1 R4 RE-001201-GP 471B-120J-1-X 12 5% 5W METAL OXIDE FILM 2 R261, R262 20 QSC Audio Products, LLC RMX850 Channel 2 module (continued) QSC part # Old QSC part # Description Qty. Notes or Component Reference RE-002202-GP 4718-220J-2-P RMF 1W 22 5% AT FP 2 R236, R237 RE-082005-GP 471B-821J-1-X RMF 5W 820 OHM 5% AL METAL 2 R257, R258 RE-120007-GP 471B-202J-1-X RMF 5W 2K 5% AL METAL 2 R233, R235 RE-122006-GP 4756-2226-3-06 SVR 2.2K H3 7X7 2 R239, R240 RE-190903-GP 4717-9091-2 RMF 1/2W 9.09K 1% AT 1 R123 RE-210010-GP 4717-103A-2 RMF 1/2W 10.0K 1% AT 2 R122, R222 XF-000190-GP 1804-1030-0 SPRING COIL 2uH 1 L200 Channel 2 SMT parts CA-056001-GP 150F-560K-J-BD CC 50V 56PF 10% 0805 2 C110, C210 CA-056002-GP 15CG-560J-6-CF CTC 0/30 56P 5% 1206 2 C111, C211 CA-118000-GP 150F-181K-J-BD CC 50V 180PF 5% 0805 4 C101, C103, C201, C203 CA-210011-GP 150H-102J-6-CF CC 100V 0.001μF 5% 1206 1 C214 CA-222007-GP 150F-222K-6-CF 50V .0022UF 10% 1206 1 C215 CA-410013-GP 150F-104K-6-CF CER 2 1206 10% 50V .1UF 3 C100, C102, C104 IC-000212-GP 3131-9730-0 IC NE5517D 1 U10 QD-000201-GP 4804-1480-3 DIODE LL4148 SM 15 D102, D103, D105, D106, D202–D206, D211–D216 QD-000204-GP 4860-0640-3 XISTOR NPN 60V 200MA 3904 SOT-23 2 Q201, Q202 QD-000205-GP 4853-9060-3 XISTOR PNP 40V 0.2A TR3906 SOT-23 2 Q100, Q200 RE-004702-GP 4720-470J-J RMG 1/10W 47 OHM 5% 0805 1 R224 RE-010006-GP 4720-101J-J RMG 1/10W 100 5% 6 R109, R110, R127, R209, R211, R227 RE-027003-GP 4720-271J-J RMG 1/10W 270 OHM 5% 6 R111, R113, R120, R210, R213, R220 RE-082003-GP 4721-821J-6 RMG 1/8W 820 OHM 5% 1206 4 R115, R215, R230, R232 RE-110012-GP 4720-102J-J RMG 1/10W 1K 5% 0805 3 R102, R126, R202 RE-115004-GP 4720-152J-J RMG 1/10W 1.5K 5% 0805 1 R229 RE-133007-GP 4720-332J-J RMG 1/10W 3.3K 5% 0805 1 R24 RE-147001-GP 4720-472J-J RMG 1/10W 4.7K 5% 0805 2 R114, R214 RE-175003-GP 4720-752J-J RMG 1/10W 7.5K 5% 0805 2 R108, R208 RE-210006-GP 4720-103J-J RMG 1/10W 10K 5% 0805 3 R103, R203, R228 RE-210007-GP 4720-103A-J 10K 1% 1/10W THK FLM 0805 8 R100, R101, R105, R106, R200, R201, R205, R206 RE-220005-GP 4720-203A-J RMG 1/10W 20K 1% 0805 4 R117, R121, R217, R221 RE-233001-GP 4721-333J-6 RMG 1/8W 33K 1% 1206 2 R22, R23 RE-239001-GP 4720-393J-J RMG 1/10W 39K 5% 0805 2 R107, R207 RE-247004-GP 4721-473J-6 RMG 1/8W 47K 5% 1206 1 R225 RE-315003-GP 4721-154J-6 RMG 1/8W 150K 5% 1206 2 R104, R204 RE-315004-GP 4721-154A-6 RMG 1/8W 150K 1% 1206 4 R118, R119, R218, R219 RE-339001-GP 4721-394J-6 RMG 1/8W 390K 5% 1206 2 R116, R216 Input Board Assembly (was PCB-QZ010C-INP) CA-147006-GP 150F-471J-5-OF 470PF 5% 50V CER NPO 4 C1–C4 CO-000204-GP 2113-1337-1 CONN XLR F VERT PLASTIC 2 J101, J201 CO-000234-GP 2113-1335-0 5 POLE INPUT TERMINAL BLOCK 1 J5 CO-000235-GP 2113-1652-0 PHONE JACK 06.4 2 J102, J202 SW-000089-GP 5200-4713-0 10 POLE DIP SWITCH 1 SW1 WC-000194-GP 7010-9860-0 RIBBON CABLE 26 PIN IEC 1 J1 Output Board Assembly (was PCB-QZ010C-OUT) CO-000236-GP 2113-1336-1 SPEAKON NEUTRIK 4 WIRE 2 J100, J200 PA-000043-00 2113-1338-0 PLATE ASSY,PLX/RMX,OUTPUT,, 1 J103 PL-000055-00 4154-2111-0 OUTPUT POST PLUG FOR CE (RED) 2 For European models only PL-000056-00 4154-2121-0 OUTPUT POST PLUG FOR CE (BLACK) 2 For European models only RMX Series Technical Service Manual (2RU models) 21 TD-000098-00 rev. C 6.2 RMX1450 Replacement Parts QSC part # Old QSC part # Description Qty. Notes or Component Reference Misc. CH-000194-GP 4134-9101-0 FAN SHROUD RMX 1 CO-000211-GP 2113-1144-0 AC INLET 250V 15A 1 MS-000137-GP 4154-0361-0 FAN GUARD WIRE 76MM RMX 1 MS-000138-GP 8900-9050-1 DC FAN 24V 80X80 (+5V) 1 SW-000088-GP 5200-4717-0 ROCKER POWER SWITCH 1 SW-000091-GP 5200-3531-0 CIRCUIT BREAKER 15A 1 For 120V models SW-000094-GP 5200-4731-0 CIRCUIT BREAKER 8A 1 For 230V models WC-000181-GP 7010-9640-0 AC CORD 15A, 14 AWG, ISA 1 For 120V models WC-000213-GP 7009-8620-0 AC CORD SET CE 1 For 230V models *XF-000116-GP 1806-2506-0 POWER TRANSFORMER, RMX 1450 1 Discontinued; replaced by XF-000316-GP and XF-000317-GP XF-000316-GP 1806-3985+0000 TRANSFORMER, 240V, RMX1450 1 For 230V models XF-000317-GP 1806-3984+0000 TRANSFORMER, 120V, RMX1450 1 For 120V models WP-008502-00 AC Board Assembly (was PCB-QZ020C-PSU) CA-422005-GP 153R-224K-5-Y1 CM 250V .22UF 10% RL 2 C127, C227 CA-810006-GP 157Q-108M-5-X9E 1000UF 35V 20% ELECTROLYTIC 1 C6 HW-000020-GP 4134-8851-0 FUSE HOLDER 6.3MM 4 REF: F100, F200 IC-000213-GP 3130-9270-0 IC 4N29 1 U2 MS-000124-GP 5120-0061-0 FUSE 12A 250V 6.3 X 32MM 2 F100, F200 MS-000126-GP 5400-0831-0 HEATSINK, BRIDGE RECTIFIER 1 REF: Q3 QD-000200-GP 4840-1760-0 DIODE RECT 1A 200V DB103 1 BR1 QD-000214-GP 4860-2620-5 TR TIP31C SAMSUNG 1 Q3 QD-000227-GP 4840-2150-0 BRIDGE RECT 400V 25A 2 BR100, BR200 RE-000005-GP 8910-0273-0 POLYSWITCH 1.1A 0.15 OHM 1.5W 1 R1 RE-000270-GP 8910-0275-0 NTC 30A 1 OHM 1 R21 RE-012004-GP 4719-121J-1-X RMF 2W 120 OHM 5% 1 R17 RE-120003-GP 4701-202J-C RCF 1/8W 2K 5% ATS 1 R13 RE-168002-GP 4701-682J-C RCF 1/8W 6.8K 5% ATS 2 R9, R14 4701-474J-C RCF 1/8W 470K 5% ATS 1 R12 WP-014502-00 Channel 1 Module Assembly (left) (was PCB-QZ020C-PWR1) CA-233004-GP 153F-332J-5-KW CM 50V .0033UF 5% RL 2 C117, C118 CA-322006-GP 153F-223J-5-LQ CM 50V .022UF 5% RL 2 C116, C119 CA-368004-GP 153R-683J-5-WWM 0.068UF 5% 250V FILM DIPPED 1 C124 CA-547008-GP 157R-475M-5-OV 4.7UF 20% 250V ELECTRO RAD 1 C7 CA-647005-GP 157F-476M-5-LU CE 50V 47uF 20% RL 1 C8 CA-833002-GP 8910-0272-0 3300UF 20% 100V ELECT RAD 4 C120–C123 PT-110002-GP 4756-1016-3-06 TRIM POT,100,20 PCNT,0.15W,, 1 R131 QD-000198-GP 3700-4531-G LED 4.7MM GRN W/STAND 1 LD1 QD-000202-GP 4804-0040-1 DIODE IN4004 AL 5 D1, D11, D12, D117, D118 QD-000203-GP 4838-15V6-2 DIOD ZNR 15V 1W SILICON EPIT 2 D8, D15 QD-000206-GP 4804-9340-2 DIOD RECT FAST, IN4934 AT 2 D108, D109 QD-000207-GP 4860-5020-5 XISTOR NPN 250V 0.5A MJE15032 1 Q105 QD-000208-GP 4860-5060-5 TR 2SA1943 T0-3P (L) 3 Q103, Q107, Q109, Q111 QD-000209-GP 4860-5050-5 TR 2SC5200 T0-3P (L) 3 Q104, Q108, Q110, Q112 QD-000210-GP 4860-5030-5 XISTOR PNP 250V MJE15033 1 Q106 QD-000211-GP 4860-8890-0 TR MPS A06VCE 80V NS 1 Q5 QD-000212-GP 4837-5B10-2 DIODE ZENER 1/2W 5.5-5.8V 2 D107, D110 (December 2003 and earlier) QD-000269-GP * DIODE ZENER 5.1V 5% .25W DO-35 2 D107, D110 (January 2004 and later) RE-.02201-GP 471A-022K-5-N 0.22 OHM 5% 3W THK FLM 8 R142, R143, R148, R149, R152, R153, R156, R159 RE-.56006-GP 4719-5R6J-1-X RMF 2W 5.6 OHM 5% 1 R160 RE-.68001-GP 4718-6R8J-1-X RMF 1W 6.8 OHM 5% 2 R146, R147 RE-000250-GP 8910-0488-0 NTC RES 50 OHM 1 R134 RE-000260-GP 8910-0274-0 THERMAL PTC 60C 100 OHM 1 R7 RE-001201-GP 471B-120J-1-X 12 5% 5W METAL OXIDE FILM 2 R161, R162 RE-002202-GP 4718-220J-2-P RMF 1W 22 5% AT FP 2 R136, R137 RE-110011-GP 471B-102J-1-X RMF 5W 1K 5% 2 R157, R158 RE-122006-GP 4756-2226-3-06 SVR 2.2K H3 7X7 2 R139, R140 22 QSC Audio Products, LLC RMX1450 Channel 1 module (continued) QSC part # Old QSC part # Description Qty. Notes or Component Reference RE-130003-GP 471B-302J-1-X RMF 5W 3K 5% METAL 2 R133, R135 RE-215006-GP 4719-153J-1-X RMF 2W 15K 5% AL METAL 2 R2, R5 XF-000190-GP 1804-1040-0 SPRING COIL 2UH (14GA WIRE) 1 L100 Channel 1 SMT parts CA-210011-GP 150H-102J-6-CF CC 100V 0.001U 5% 1206 1 C114 CA-222007-GP 150F-222K-6-CF 50V .0022UF 10% 1206 1 C115 QD-000201-GP 4804-1480-3 DIODE LL4148 SM 15 D2–D7, D9, D14, D104, D111–D116 QD-000204-GP 4860-0640-3 XISTOR NPN 60V 200MA 3904 SOT-23 4 Q8, Q9, Q101, Q102 QD-000205-GP 4853-9060-3 XISTOR PNP 40V 0.2A TR3906 SOT-23 3 Q4, Q6, Q7 QD-000213-GP 4860-5110-3 TR KST42 1 Q1 RE-004702-GP 4720-470J-J RMG 1/10W 47 OHM 5% 0805 2 R25, R124 RE-082003-GP 4721-821J-6 RMG 1/8W 820 OHM 5% 1206 2 R130, R132 RE-115004-GP 4720-152J-J RMG 1/10W 1.5K 5% 0805 1 R129 RE-120004-GP 4720-202J-J RMG 1/10W 2K 1% 0805 [here] 1 R8 RE-168002-GP 4721-682J-6 RCF 1/8W 6.8K 5% ATS 1 R19 RE-210006-GP 4720-103J-J RMG 1/10W 10K 5% 0805 1 R128 RE-247004-GP 4721-473J-6 RMG 1/8W 47K 5% 1206 1 R125 RE-315003-GP 4721-154J-6 RMG 1/8W 150K 5% 1206 1 R10 RE-322001-GP 4721-224J-6 RMG 1/8W 220K 5% 1206 2 R18, R27 RE-322002-GP 4720-224J-J RMG 1/10W 220K 5% 0805 1 R26 RE-347002-GP 4721-474J-6 RMF 1/8W 470K 5% ATS 1 R15 RE-410002-GP 4721-105J-6 RMG 1/8W 1M 5% 1206 2 R3, R6 WP-014503-00 Channel 2 Module Assembly (right) (was PCB-QZ020C-PWR2) CA-233004-GP 153F-332J-5-KW CM 50V .0033UF 5% RL 2 C217, C218 CA-322006-GP 153F-223J-5-LQ CM 50V .022UF 5% RL 2 C216, C219 CA-368004-GP 153R-683J-5-WWM 0.068UF 5% 250V FILM DIPPED 1 C224 CA-415004-GP 153F-154J-5-NLM 0.15U,5%,50V,CM,,RBT,7.5X 4 C108, C109, C208, C209 CA-422006-GP 153F-224J-5-NLM CM 50V 0.22UF 5% RL 2 C107, C207 CA-610020-GP 157F-106M-5-LUN CE 50V 10UF 20% RLT 5 X 11 2 C106, C206 CA-710009-GP 157E-107M-5-KW CE 25V 100UF 20% RL 2 C105, C205 CA-722006-GP 157E-227M-5-PU CE 25V 220uF 20% RL 4 C112, C113, C212, C213 CA-833002-GP 8910-0272-0 3300UF 20% 100V ELECT RAD 4 C220–C223 CO-000222-GP 2101-1991-0 8-PIN IC SOCKET 2 REF: U101, U201 IC-000211-GP 3130-2430-0 IC NE5532 OP AMP 2 U101, U201 PT-110002-GP 4756-1016-3-06 TRIM POT,100,20 PCNT,0.15W,, 1 R231 *PT-225000-GP *4751-0110-0 RES VAR 2.5K RT ANGLE PCB 2 R112, R212 (May 2002 and later) *PT-310006-GP *4750-6200-0 VR V012CPH, D-SHAFT 10K 2 R112, R212 (April 2002 and earlier) QD-000197-GP 3700-4529-R LED 4.7MM RED W/STAND 2 LD100, LD200 QD-000199-GP 3700-4530-Y LED 4.7MM W/STAND YELLOW 2 LD101, LD201 QD-000202-GP 4804-0040-1 DIODE IN4004 AL 4 D10,D13, D217, D218 QD-000203-GP 4838-15V6-2 DIOD ZNR 15V 1W SILICON EPIT 4 D100, D101, D200, D201 QD-000206-GP 4804-9340-2 DIOD RECT FAST, IN4934 AT 2 D208, D209 QD-000207-GP 4860-5020-5 XISTOR NPN 250V 0.5A MJE15032 1 Q205 QD-000208-GP 4860-5060-5 TR 2SA1943 T0-3P (L) 3 Q203, Q207, Q209, Q211 QD-000209-GP 4860-5050-5 TR 2SC5200 T0-3P (L) 3 Q204, Q208, Q210, Q212 QD-000210-GP 4860-5030-5 XISTOR PNP 250V MJE15033 1 Q206 QD-000212-GP 4837-5B10-2 DIODE ZENER 1/2W 5.5-5.8V 2 D207, D210 (December 2003 and earlier) QD-000269-GP * DIODE ZENER 5.1V 5% .25W DO-35 2 D207, D210 (January 2004 and later) RE-.02201-GP 471A-022K-5-N 0.22 OHM 5% 3W THK FLM 8 R242, R243, R248, R249, R252, R253, R256, R259 RE-.56006-GP 4719-5R6J-1-X RMF 2W 5.6 OHM 5% 1 R260 RE-.68001-GP 4718-6R8J-1-X RMF 1W 6.8 OHM 5% 3 R20, R246, R247 RE-000250-GP 8910-0488-0 NTC RES 50 OHM 1 R234 RE-000260-GP 8910-0274-0 THERMAL PTC 60C 100 OHM 1 R4 RE-001201-GP 471B-120J-1-X 12 5% 5W METAL OXIDE FILM 2 R261, R262 RE-002202-GP 4718-220J-2-P RMF 1W 22 5% AT FP 2 R236, R237 RE-110011-GP 471B-102J-1-X RMF 5W 1K 5% 2 R257, R258 RE-122006-GP 4756-2226-3-06 SVR 2.2K H3 7X7 2 R239, R240 RE-130003-GP 471B-302J-1-X RMF 5W 3K 5% METAL 2 R233, R235 RE-211304-GP 4717-1132-2 RMF 1/2W 11.3K 1% AT 1 R123 RMX Series Technical Service Manual (2RU models) 23 TD-000098-00 rev. C RMX1450 Channel 2 module (continued) QSC part # Old QSC part # Description Qty. Notes or Component Reference RE-213304-GP 4717-1332-2 RMF 1/2W 13.3K 1% AT 2 R122, R222 XF-000190-GP 1804-1040-0 SPRING COIL 2UH (14GA WIRE) 1 L200 Channel 2 SMT Parts CA-056001-GP 150F-560K-J-BD CC 50V 56PF 10% 0805 2 C110, C210 CA-056002-GP 15CG-560J-6-CF CTC 0/30 56P 5% 1206 2 C111, C211 CA-118000-GP 150F-181K-J-BD CC 50V 180PF 5% 0805 4 C101, C103, C201, C203 CA-210011-GP 150H-102J-6-CF CC 100V 0.001U 5% 1206 1 C214 CA-222007-GP 150F-222K-6-CF 50V .0022UF 10% 1206 1 C215 CA-410013-GP 150F-104K-6-CF CER 2 1206 10% 50V .1UF 3 C100, C102, C104 IC-000212-GP 3131-9730-0 IC NE5517D 1 U10 QD-000201-GP 4804-1480-3 DIODE LL4148 SM 15 D102, D103, D105, D106, D202–D206, D211–D216 QD-000204-GP 4860-0640-3 XISTOR NPN 60V 200MA 3904 SOT-23 2 Q201, Q202 QD-000205-GP 4853-9060-3 XISTOR PNP 40V 0.2A TR3906 SOT-23 2 Q100, Q200 RE-004702-GP 4720-470J-J RMG 1/10W 47 OHM 5% 0805 1 R224 RE-010006-GP 4720-101J-J RMG 1/10W 100 5% 6 R109, R110, R127, R209, R211, R227 RE-027003-GP 4720-271J-J RMG 1/10W 270 OHM 5% 6 R111, R113, R120, R210, R213, R220 RE-082003-GP 4721-821J-6 RMG 1/8W 820 OHM 5% 1206 4 R115, R215, R230, R232 RE-110012-GP 4720-102J-J RMG 1/10W 1K 5% 0805 3 R102, R126, R202 RE-115004-GP 4720-152J-J RMG 1/10W 1.5K 5% 0805 1 R229 RE-133007-GP 4720-332J-J RMG 1/10W 3.3K 5% 0805 1 R24 RE-147001-GP 4720-472J-J RMG 1/10W 4.7K 5% 0805 2 R114, R214 RE-175003-GP 4720-752J-J RMG 1/10W 7.5K 5% 0805 2 R108, R208 RE-210006-GP 4720-103J-J RMG 1/10W 10K 5% 0805 3 R103, R203, R228 RE-210007-GP 4720-103A-J 10K 1% 1/10W THK FLM 0805 8 R100, R101, R105, R106, R200, R201, R205, R206 RE-220005-GP 4720-203A-J RMG 1/10W 20K 1% 0805 4 R117, R121, R217, R221 RE-233001-GP 4721-333J-6 RMG 1/8W 33K 1% 1206 [here] 2 R22, R23 RE-239001-GP 4720-393J-J RMG 1/10W 39K 5% 0805 2 R107, R207 RE-247004-GP 4721-473J-6 RMG 1/8W 47K 5% 1206 1 R225 RE-315004-GP 4721-154A-6 RMG 1/8W 150K 1% 1206 4 R118, R119, R218, R219 RE-315003-GP 4721-154J-6 RMG 1/8W 150K 5% 1206 2 R104, R204 RE-349901-GP 4721-4993-6 499K 1% 1/8W THICK FILM 1206 2 R116, R216 Input Board Assembly (was PCB-QZ020C-INP) CA-147006-GP 150F-471J-5-OF 470PF 5% 50V CER NPO 4 C1, C2, C3, C4 CO-000204-GP 2113-1337-1 CONN XLR F VERT PLASTIC 2 J101, J201 CO-000235-GP 2113-1652-0 PHONE JACK 06.4 2 J102, J202 SW-000089-GP 5200-4713-0 10 POLE DIP SWITCH 1 SW1 WC-000194-GP 7010-9860-0 RIBBON CABLE 26 PIN IEC 1 J1 Output Board Assembly (was PCB-QZ020C-OUT) CO-000236-GP 2113-1336-1 SPEAKON NEUTRIK 4 WIRE 2 J100, J200 PA-000043-00 2113-1338-0 PLATE ASSY,PLX/RMX,OUTPUT,, 1 J103 PL-000055-00 4154-2111-0 OUTPUT POST PLUG FOR CE (RED) 2 For European models only PL-000056-00 4154-2121-0 OUTPUT POST PLUG FOR CE (BLACK) 2 For European models only 24 QSC Audio Products, LLC 6.3 RMX1850HD Replacement Parts QSC part # Old QSC part # Description Qty. Notes or Component Reference Misc. CH-000194-GP 4134-9101-0 FAN SHROUD RMX 1 CO-000211-GP 2113-1144-0 AC INLET 250V 15A 1 MS-000137-GP 4154-0361-0 FAN GUARD WIRE 76MM RMX 1 MS-000138-GP 8900-9050-1 DC FAN 24V 80X80 (+5V) 1 SW-000088-GP 5200-4717-0 ROCKER POWER SWITCH 1 SW-000091-GP 5200-3531-0 CIRCUIT BREAKER 15A 1 For 120V models SW-000094-GP 5200-4731-0 CIRCUIT BREAKER 8A 1 For 230V models WC-000181-GP 7010-9640-0 AC CORD 15A, 14 AWG, ISA 1 For 120V models WC-000213-GP 7009-8620-0 AC CORD 8A, CE 1 For 230V models *XF-000105-GP 1806-2440-0 XFMR RMX 1850 1 Discontinued; replaced by XF-000320-GP and XF-000321-GP XF-000320-GP 1806-3989+0000 TRANSFORMER, 240V, RMX1850HD 1 For 230V models XF-000321-GP 1806-3988+0000 TRANSFORMER, 120V, RMX1850HD 1 For 120V models AC Board Assembly (was PCB-QZ101C-PSU) CA-422005-GP 153R-224K-5-Y1 CM 250V .22UF 10% RL 4 C127, C128, C227, C228 CA-810006-GP 157Q-108M-5-X9E 1000UF 35V 20% ELECTROLYTIC 1 C6 153T-473K-5-WS CM 400V 0.047UF 10% RL 1 C10 IC-000213-GP 3130-9270-0 IC 4N29 1 U2 MS-000125-GP 5400-1831-1 HEATSINK FOR RECTIFIER 4 REF: BR100, BR101, BR200, BR201 MS-000126-GP 5400-0831-0 HEATSINK, BRIDGE RECTIFIER 1 REF: Q3 QD-000200-GP 4840-1760-0 DIODE RECT 1A 200V DB103 1 BR1 QD-000214-GP 4860-2620-5 TR TIP31C SAMSUNG 1 Q3 QD-000227-GP 4840-2150-0 BRIDGE RECT 400V 25A 4 BR100, BR101, BR200, BR201 RE-000005-GP 8910-0273-0 POLYSWITCH 1.1A 0.15 OHM 1.5W 1 R1 RE-000270-GP 8910-0275-0 NTC 30A 1 OHM 1 R21 RE-001201-GP 471B-120J-1-X 12 5% 5W METAL OXIDE FILM 2 R28, R29 RE-012004-GP 4719-121J-1-X RMF 2W 120 OHM 5% 1 R17 RE-120003-GP 4701-202J-C RCF 1/8W 2K 5% ATS 1 R13 RE-168002-GP 4701-682J-C RCF 1/8W 6.8K 5% ATS 2 R9, R14 4701-474J-C RCF 1/8W 470K 5% ATS 1 R12 WP-018504-00 Channel 1 Module Assembly (right) (was PCB-QZ100C-PWR2) CA-210012-GP 153H-102J-5-IQ CM 100V .001UF 5% RL 5X 2 C131, C231 CA-215004-GP 153R-152J-5-XQ CM 250V .0015UF 5% RL 1 C114 CA-233004-GP 153F-332J-5-KW CM 50V .0033UF 5% RL 2 C172, C179 CA-322006-GP 153F-223J-5-LQ CM 50V .022UF 5% RL 2 C116, C119 CA-368004-GP 153R-683J-5-WWM 0.068UF 5% 250V FILM DIPPED 2 C124, C126 CA-410018-GP 153R-104J-5-YRM CM 250V .1UF 5% RL 2 C174, C175 CA-415004-GP 153F-154J-5-NLM 0.15U,5%,50V,CM,,RBT,7.5X 4 C108, C109, C208, C209 CA-422006-GP 153F-224J-5-NLM CM 50V 0.22UF 5% RL 2 C107, C207 CA-610009-GP 157Q-106M-5-IU CE 35V 10UF 20% RL 5 X 11 1 C171 CA-622007-GP 157E-226M-5-IUN CE 25NP 22UF 20% RL 5X11 1 C129 CA-647006-GP 157D-476M-5-LUN CE 16NP 47UF 20% RL 2 C106, C206 CA-710009-GP 157E-107M-5-KW CE 25V 100UF 20% RL 4 C105, C173, C180, C205 CA-710010-GP 157D-107M-5-OUN CE 16NP 100UF 20% RL 8X11 2 C125, C225 CA-722006-GP 157E-227M-5-PU CE 25V 220uF 20% RL 4 C112, C113, C212, C213 CA-912001-GP 8910-0494-0 12000UF,20 PCNT,63V,CE,RL,, 4 C120–C123 CO-000217-GP 2102-130S-003 CONN 13 PIN STRAIGHT WAFER 1 J104 CO-000222-GP 2101-1991-0 8-PIN IC SOCKET 2 REF: U101, U201 CO-000223-GP 2101-2081-0 26-PIN DUAL ROW IEC 1 J103 HW-000020-GP 4134-8851-0 FUSE HOLDER 6.3MM 2 F100 IC-000211-GP 3130-2430-0 IC NE5532 OP AMP 2 U101, U201 MS-000127-GP 5120-0501-0 FUSE T20A/125V 6.4X32MM 1 F100 PT-110002-GP 4756-1016-3-06 TRIM POT,100,20 PCNT,0.15W,, 1 R131 PT-225000-GP 4751-0110-0 RES VAR 2.5K RT ANGLE PCB 2 R112, R212 QD-000197-GP 3700-4529-R LED 4.7MM RED W/STAND 2 LD100, LD200 QD-000199-GP 3700-4530-Y LED 4.7MM W/STAND YELLOW 2 LD101, LD201 RMX Series Technical Service Manual (2RU models) 25 TD-000098-00 rev. C RMX1850HD Channel 1 module (continued) QSC part # Old QSC part # Description Qty. Notes or Component Reference QD-000202-GP 4804-0040-1 DIODE IN4004 AL 4 D10, D12, D117, D118 QD-000203-GP 4838-15V6-2 DIOD ZNR 15V 1W SILICON EPIT 4 D100, D101, D200, D201 QD-000206-GP 4804-9340-2 DIOD RECT FAST, IN4934 AT 2 D108, D109 QD-000207-GP 4860-5020-5 XISTOR NPN 250V 0.5A MJE15032 1 Q105 QD-000208-GP 4860-5060-5 TR 2SA1943 T0-3P (L) 3 Q103, Q107, Q109, Q111 QD-000209-GP 4860-5050-5 TR 2SC5200 T0-3P (L) 3 Q104, Q108, Q110, Q112 QD-000210-GP 4860-5030-5 XISTOR PNP 250V MJE15033 1 Q106 *QD-000212-GP 4837-5B10-2 DIODE ZENER 1/2W 5.5-5.8 2 D107, D110 (December 2003 and earlier) QD-000215-GP 4840-2190-0 DIODE MUR1520 15A 200V 2 D175, D176 QD-000218-GP 4837-3B20-2 DIOD ZNR 3.8-4.0V 1/2 HZ SER 1 D170 QD-000219-GP 4838-10V6-2 DIODE ZENER 1.3W 10V TEMIC 1 D174 QD-000220-GP 4838-12V6-2 DIODE ZENER 1W 12V AT TEMIC 1 D178 *QD-000221-GP 8910-0482-0 SRV-TRIAC 600V 40A MAC224 A8 1 Q113 (replaced by SG-000522-00 kit) *QD-000261-GP * TRIAC 600V 40A BTA41-600B,TOP3 1 Q113 (part of SG-000522-00 kit for replacing MAC224 triac) *QD-000269-GP * DIODE ZENER 5.1V 5% .25W DO-35 2 D107, D110 (January 2004 and later) QD-000347-GP 490F-Z440-5 FETN,60V,50A,150W,,, 2 Q170, Q174 QD-000350-10 4860-5250-5 TR 2N5064 SCR 2 D119, D120 RE-.02201-GP 471A-022K-5-N 0.22 OHM 5% 3W THK FLM 8 R142, R143, R148, R149, R152, R153, R156, R159 RE-.15003-GP 4719-1R5J-1-X 1.5 OHM 5% 2W THK FLM 2 R181, R182 RE-.33001-GP 4718-3R3J-1-X RMF 1W 3.3 OHM 5% 3 R146, R147, R20 RE-.56006-GP 4719-5R6J-1-X RMF 2W 5.6 OHM 5% 1 R160 RE-000250-GP 8910-0488-0 NTC RES 50 OHM 1 R134 RE-000260-GP 8910-0274-0 THERMAL PTC 60C 100 OHM 1 R4 RE-001005-GP 4715-100J-2 RMF 1/4W 10 OHM 5% 1 R163 RE-001201-GP 471B-120J-1-X 12 5% 5W METAL OXIDE FILM 4 R154, R155, R161, R162 RE-002202-GP 4718-220J-2-P RMF 1W 22 5% AT FP 2 R136, R137 RE-010008-GP 4715-101J-2 RMF 1/4W 100 OHM 5% 1 R164 RE-122006-GP 4756-2226-3-06 SVR 2.2K H3 7X7 2 R139, R140 RE-122008-GP 471B-222J-1-X RMF 5W 2.2K 5% METAL 3 R157, R158, R198 RE-151003-GP 471B-512J-1-X RMF 5W 5.1K 5% AL METAL 2 R180, R188 RE-182002-GP 471B-822J-1-X RMF 5W 8.2K 5% AL METAL 4 R118, R119, R133, R135 RE-212002-GP 4718-123J-2-X RMF 1W 12K 5% AT METAL 2 R177, R194 RE-215007-GP 4718-153J-2-X RMF 1W 15K 5% METAL 1 R165 RE-223202-GP 4717-2322-2 RMF 1/2W 23.2K 1% AT 3 R122, R123, R222 XF-000190-GP 1804-1040-0 SPRING COIL 2UH (14GA WIRE) 1 L100 Channel 1 SMT parts CA-047005-GP 150F-470J-J-BD CC 50V 47PF 5% 0805 5 C110, C170, C176, C177, C210 CA-110004-GP 150F-101K-J-BD CC 50V 100P 10% 0805 1 C132 CA-110005-GP 150F-101J-J-BD CC 50V 100PF 5% 0805 1.2 1 C130 CA-118000-GP 150F-181K-J-BD CC 50V 180PF 5% 0805 4 C101, C103, C201, C203 CA-222007-GP 150F-222K-6-CF 50V .0022UF 10% 1206 1 C115 CA-310009-GP 150F-103M-J-BD CC 50V 0.01uF 20% 0805 1 1 C181 CA-410016-GP 150F-104M-6-CF CC 50V 0.1uF 20% 1206 1. 2 C104, C178 15CG-270J-6-CF CTC 0/30 27P 5% 1206 2 C111, C211 IC-000212-GP 3131-9730-0 IC NE5517D 1 U10 IC-000214-GP 3130-9240-0 LM311M VOLTAGE 2 U170, U171 QD-000201-GP 4804-1480-3 DIODE LL4148 SM 18 D102–D106, D111–D116, D171, D173, D177, D202, D203, D205, D206 QD-000204-GP 4860-0640-3 XISTOR NPN 60V 200MA 3904 SOT-23 4 Q101, Q102, Q171, Q173 QD-000205-GP 4853-9060-3 XISTOR PNP 40V 0.2A TR3906 SOT-23 4 Q100, Q172, Q175, Q200 RE-004702-GP 4720-470J-J RMG 1/10W 47 OHM 5% 0805 2 R170, R189 RE-007506-GP 4720-750J-J RMG 1/10W 75 OHM 5% 0805 1 R124 RE-010006-GP 4720-101J-J RMG 1/10W 100 5% 6 R109, R110, R127, R209, R210, R227 RE-027003-GP 4720-271J-J RMG 1/10W 270 OHM 5% 4 R113, R196, R213, R296 RE-039001-GP 4720-391J-J RMG 1/10W 390R 5% 0805 2 R120, R220 RE-082003-GP 4721-821J-6 RMG 1/8W 820 OHM 5% 1206 4 R115, R130, R132, R215 RE-082004-GP 4720-821J-J RMG 1/10W 820R 5% 0805 2 R111, R211 RE-110012-GP 4720-102J-J RMG 1/10W 1K 5% 0805 3 R102, R126, R202 RE-115004-GP 4720-152J-J RMG 1/10W 1.5K 5% 0805 1 R129 26 QSC Audio Products, LLC RMX1850HD Channel 1 module (continued) QSC part # Old QSC part # Description Qty. Notes or Component Reference RE-120004-GP 4720-202J-J RMG 1/10W 2K 1% 0805 2 R190, R195 RE-122007-GP 4720-222J-J RMG 1/10W 2.2K 5% 0805 1 R191 RE-130103-GP 4720-3011-J RMG 1/10W 3.01K 1% 0805 2 R24, R175 RE-147001-GP 4720-472J-J RMG 1/10W 4.7K 5% 0805 8 R114, R138, R174, R179, R187, R193, R214, R238 RE-159003-GP 4720-592A-J 5.9K 1% 1/10W THK FLM 0805 2 R171, R184 RE-175003-GP 4720-752J-J RMG 1/10W 7.5K 5% 0805 2 R108, R208 RE-210006-GP 4720-103J-J RMG 1/10W 10K 5% 0805 3 R103, R128, R203 RE-210007-GP 4720-103A-J 10K 1% 1/10W THK FLM 0805 8 R100, R101, R105, R106, R200, R201, R205, R206 RE-212001-GP 4720-123J-J RMG 1/10W 12K 5% 0805 1 R176 RE-224001-GP 4720-243J-J 24.0K 1% 1/10W THK FLM 0805 4 R117, R121, R217, R221 RE-239001-GP 4720-393J-J RMG 1/10W 39K 5% 0805 2 R107, R207 RE-247004-GP 4721-473J-6 RMG 1/8W 47K 5% 1206 1 R125 RE-247005-GP 4720-473J-J RMG 1/10W 47K 5% 0805 1 R183 RE-268003-GP 4721-683A-6 RMG 1/8W 68K 1% 1206 4 R22A, R22B, R23A, R23B RE-315003-GP 4721-154J-6 RMG 1/8W 150K 5% 1206 6 R104, R173, R178, R186, R192, R204 RE-346401-GP 4721-4643-6 464K 1% 1/8W THK FLM 1206 3 R166, R167, R266 RE-347003-GP 4720-474J-J RMG 1/10W 470K 5% 0805 2 R172, R185 4721-101J-6 RMG 1/8W 100R 5% 1206 1 R197 4721-824J-6 RMG 1/8W 820K 5% 1206 2 R116, R216 WP-018503-00 Channel 2 Module Assembly (left) (was PCB-QZ100C-PWR1) CA-215004-GP 153R-152J-5-XQ CM 250V .0015UF 5% RL 1 C214 CA-233004-GP 153F-332J-5-KW CM 50V .0033UF 5% RL 2 C272, C279 CA-322006-GP 153F-223J-5-LQ CM 50V .022UF 5% RL 2 C216, C219 CA-368004-GP 153R-683J-5-WWM 0.068UF 5% 250V FILM DIPPED 2 C224, C226 CA-410018-GP 153R-104J-5-YRM CM 250V .1UF 5% RL 2 C274, C275 CA-622007-GP 157E-226M-5-IUN CE 25NP 22UF 20% RL 5X11 1 C229 CA-647005-GP 157F-476M-5-LU CE 50V 47UF 20% RL 1 C8 CA-610009-GP 157Q-106M-5-IU CE 35V 10UF 20% RL 5 X 11 1 C271 CA-710009-GP 157E-107M-5-KW CE 25V 100UF 20% RL 2 C273, C280 CA-547008-GP 157R-475M-5-OV 4.7UF 20% 250V ELECTRO RAD 1 C7 CA-912001-GP 8910-0494-0 12000UF,20 PCNT,63V,CE,RL,, 4 C220–C223 CO-000214-GP 2102-031S-004 CONN 3 PIN STRAIGHT WAFER 1 J257 CO-000217-GP 2102-130S-003 CONN 13 PIN STRAIGHT WAFER 1 J204 HW-000020-GP 4134-8851-0 FUSE HOLDER 6.3MM 2 REF: F200 MS-000127-GP 5120-0501-0 FUSE T20A/125V 6.4X32MM 1 F200 PT-110002-GP 4756-1016-3-06 TRIM POT,100,20 PCNT,0.15W,, 1 R231 QD-000198-GP 3700-4531-G LED 4.7MM GRN W/STAND 1 LD1 QD-000202-GP 4804-0040-1 DIODE IN4004 AL 5 D1, D11, D13, D217, D218 QD-000203-GP 4838-15V6-2 DIOD ZNR 15V 1W SILICON EPIT 2 D8, D15 QD-000206-GP 4804-9340-2 DIOD RECT FAST, IN4934 AT 2 D208, D209 QD-000207-GP 4860-5020-5 XISTOR NPN 250V 0.5A MJE15032 1 Q205 QD-000208-GP 4860-5060-5 TR 2SA1943 T0-3P (L) 3 Q203, Q207, Q209, Q211 QD-000209-GP 4860-5050-5 TR 2SC5200 T0-3P (L) 3 Q204, Q208, Q210, Q212 QD-000210-GP 4860-5030-5 XISTOR PNP 250V MJE15033 1 Q206 QD-000211-GP 4860-8890-0 TR MPS A06VCE 80V NS 1 Q5 *QD-000212-GP 4837-5B10-2 DIODE ZENER 1/2W 5.5-5.8V 2 D207, D210 (December 2003 and earlier) QD-000215-GP 4840-2190-0 DIODE MUR1520 15A 200V 2 D275, D276 QD-000218-GP 4837-3B20-2 DIOD ZNR 3.8-4.0V 1/2 HZ SER 1 D270 QD-000219-GP 4838-10V6-2 DIODE ZENER 1.3W 10V TEMIC 1 D274 QD-000220-GP 4838-12V6-2 DIODE ZENER 1W 12V AT TEMIC 1 D278 *QD-000221-GP 8910-0482-0 SRV-TRIAC 600V 40A MAC224 A8 1 Q213 (replaced by SG-000522-00 kit) *QD-000269-GP * DIODE ZENER 5.1V 5% .25W DO-35 2 D207, D210 (January 2004 and later) QD-000347-GP 490F-Z440-5 FETN,60V,50A,150W,,, 2 Q270, Q274 QD-000350-10 4860-5250-5 TR 2N5064 SCR 2 D219, D220 RE-.02201-GP 471A-022K-5-N 0.22 OHM 5% 3W THK FLM 8 R242, R243, R248, R249, R252, R253, R256, R259 RE-.15003-GP 4719-1R5J-1-X 1.5 OHM 5% 2W THK FLM 2 R281, R282 RE-.33001-GP 4718-3R3J-1-X RMF 1W 3.3 OHM 5% 2 R246, R247 RE-.56006-GP 4719-5R6J-1-X RMF 2W 5.6 OHM 5% 1 R260 RE-000250-GP 8910-0488-0 NTC RES 50 OHM 1 R234 RE-000260-GP 8910-0274-0 THERMAL PTC 60C 100 OHM 1 R7 RMX Series Technical Service Manual (2RU models) 27 TD-000098-00 rev. C RMX1850HD Channel 2 module (continued) QSC part # Old QSC part # Description Qty. Notes or Component Reference RE-001201-GP 471B-120J-1-X 12 5% 5W METAL OXIDE FILM 4 R254, R255, R261, R262 RE-002202-GP 4718-220J-2-P RMF 1W 22 5% AT FP 2 R236, R237 RE-001005-GP 4715-100J-2 RMF 1/4W 10 OHM 5% 1 R263 RE-010008-GP 4715-101J-2 RMF 1/4W 100 OHM 5% 1 R264 RE-122006-GP 4756-2226-3-06 SVR 2.2K H3 7X7 2 R239, R240 RE-122008-GP 471B-222J-1-X RMF 5W 2.2K 5% METAL 3 R257, R258, R298 RE-151003-GP 471B-512J-1-X RMF 5W 5.1K 5% AL METAL 2 R280, R288 RE-182002-GP 471B-822J-1-X RMF 5W 8.2K 5% AL METAL 4 R218, R219, R233, R235 RE-212002-GP 4718-123J-2-X RMF 1W 12K 5% AT METAL 2 R277, R294 RE-215007-GP 4718-153J-2-X RMF 1W 15K 5% METAL 1 R265 RE-233002-GP 4719-333J-2-X RMF 2W 33K 5% METAL 2 R2, R5 XF-000190-GP 1804-1040-0 SPRING COIL 2UH (14GA WIRE) 1 L200 Channel 2 SMT Parts CA-047005-GP 150F-470J-J-BD CC 50V 47PF 5% 0805 3 C270, C276, C277 CA-110004-GP 150F-101K-J-BD CC 50V 100P 10% 0805 1 C9 CA-222007-GP 150F-222K-6-CF 50V .0022UF 10% 1206 1 C215 CA-310009-GP 150F-103M-J-BD CC 50V 0.01uF 20% 0805 1 1 C281 CA-410014-GP 150F-104M-J-BD 0.1UF 10% 50V CER X7R 0805 1 C11 CA-410016-GP 150F-104M-6-CF CC 50V 0.1uF 20% 1206 1. 1 C278 IC-000214-GP 3130-9240-0 LM311M VOLTAGE 2 U270, U271 QD-000201-GP 4804-1480-3 DIODE LL4148 SM 18 D2–D7, D9, D14, D204, D211–D216, D271, D273, D277 QD-000204-GP 4860-0640-3 XISTOR NPN 60V 200MA 3904 SOT-23 6 Q8, Q9, Q201, Q202, Q271, Q273 QD-000205-GP 4853-9060-3 XISTOR PNP 40V 0.2A TR3906 SOT-23 5 Q4, Q6, Q7, Q272, Q275 QD-000213-GP 4860-5110-3 TR KST42 1 Q1 RE-004702-GP 4720-470J-J RMG 1/10W 47 OHM 5% 0805 3 R25, R270, R289 RE-007506-GP 4720-750J-J RMG 1/10W 75 OHM 5% 0805 1 R224 RE-082003-GP 4721-821J-6 RMG 1/8W 820 OHM 5% 1206 2 R230, R232 RE-115004-GP 4720-152J-J RMG 1/10W 1.5K 5% 0805 1 R229 RE-120004-GP 4720-202J-J RMG 1/10W 2K 1% 0805 3 R8, R290, R295 RE-122007-GP 4720-222J-J RMG 1/10W 2.2K 5% 0805 1 R291 RE-130103-GP 4720-3011-J RMG 1/10W 3.01K 1% 0805 1 R275 RE-147001-GP 4720-472J-J RMG 1/10W 4.7K 5% 0805 4 R274, R279, R287, R293 RE-159003-GP 4720-592A-J 5.9K 1% 1/10W THK FLM 0805 2 R271, R284 RE-168002-GP 4721-682J-6 RCF 1/8W 6.8K 5% ATS 1 R19 RE-210006-GP 4720-103J-J RMG 1/10W 10K 5% 0805 1 R228 RE-212001-GP 4720-123J-J RMG 1/10W 12K 5% 0805 1 R276 RE-247004-GP 4721-473J-6 RMG 1/8W 47K 5% 1206 1 R225 RE-247005-GP 4720-473J-J RMG 1/10W 47K 5% 0805 1 R283 RE-315003-GP 4721-154J-6 RMG 1/8W 150K 5% 1206 5 R10, R273, R278, R286, R292 RE-322001-GP 4721-224J-6 RMG 1/8W 220K 5% 1206 2 R18, R26 RE-330001-GP 4721-334J-6 RMG 1/8W 330K 5% 1206 1 R27 RE-346401-GP 4721-4643-6 464K 1% 1/8W THK FLM 1206 1 R15 RE-347003-GP 4720-474J-J RMG 1/10W 470K 5% 0805 2 R272, R285 RE-410002-GP 4721-105J-6 RMG 1/8W 1M 5% 1206 2 R3, R6 4721-101J-6 RMG 1/8W 100R 5% 1206 1 R30 WP-002455-00 Input Board Assembly (was PCB-QZ100C-INP) CA-147006-GP 150F-471J-5-OF 470PF 5% 50V CER NPO 4 C1, C2, C3, C4 CO-000204-GP 2113-1337-1 CONN XLR F VERT PLASTIC 2 J101, J201 CO-000235-GP 2113-1652-0 PHONE JACK 06.4 2 J102, J202 SW-000089-GP 5200-4713-0 10 POLE DIP SWITCH 1 SW1 WC-000194-GP 7010-9860-0 RIBBON CABLE 26 PIN IEC 1 J1 WP-002452-00 Output Board Assembly (was PCB-QZ100C-OUT) CO-000236-GP 2113-1336-1 SPEAKON NEUTRIK 4 WIRE 2 J100, J200 PA-000043-00 2113-1338-0 PLATE ASSY,PLX/RMX,OUTPUT,, 1 J103 PL-000055-00 4154-2111-0 OUTPUT POST PLUG FOR CE (RED) 2 For European models only PL-000056-00 4154-2121-0 OUTPUT POST PLUG FOR CE (BLACK) 2 For European models only 28 QSC Audio Products, LLC 6.4 RMX2450 Replacement Parts QSC part # Old QSC part # Description Qty. Notes or Component Reference Misc. CO-000211-GP 2113-1144-0 IEC POWER INLET 1 CH-000194-GP 4134-9101-0 METAL WIND GUIDE 1 MS-000137-GP 4154-0361-0 FAN GUIDE 1 MS-000138-GP 8900-9050-1 DC FAN 24V 80X80 (+5V) 1 SW-000088-GP 5200-4717-0 ROCKER POWER SWITCH 1 SW-000091-GP 5200-3531-0 CIRCUIT BREAKER 15A 1 For 120V models SW-000094-GP 5200-4731-0 CIRCUIT BREAKER 8A 1 For 230V models WC-000181-GP 7010-9640-0 AC CORD SET 15A 1 For 120V models WC-000213-GP 7009-8620-0 PWR CORD, 230V (EURO) 1 For 230V models *XF-000115-GP 1806-2507-0 XFMR RMX 2450 1 Discontinued; replaced by XF-000318-GP and XF-000319-GP XF-000318-GP 1806-3987+0000 TRANSFORMER, 240V, RMX2450 1 For 230V models XF-000319-GP 1806-3986+0000 TRANSFORMER, 120V, RMX2450 1 For 120V models AC Board Assembly (was PCB-QZ030C-PSU) CA-422005-GP 153R-224K-5-Y1 CM 250V .22UF 10% RL 4 C127, C128, C227, C228 CA-810006-GP 157Q-108M-5-X9E 1000UF 35V 20% ELECTROLYTIC 1 C6 153T-473K-5-WS CM 400V 0.047UF 10% RL 1 C10 IC-000213-GP 3130-9270-0 IC 4N29 1 U2 MS-000125-GP 5400-1831-1 HEATSINK FOR RECTIFIER 4 REF: BR100, BR101, BR200, BR201 MS-000126-GP 5400-0831-0 HEATSINK, BRIDGE RECTIFIER 1 REF: Q3 QD-000200-GP 4840-1760-0 DIODE RECT 1A 200V DB103 1 BR1 QD-000214-GP 4860-2620-5 TR TIP31C SAMSUNG 1 Q3 QD-000227-GP 4840-2150-0 BRIDGE RECT 400V 25A 4 BR100, BR101, BR200, BR201 RE-000005-GP 8910-0273-0 POLYSWITCH 1.1A 0.15 OHM 1.5W 1 R1 RE-000270-GP 8910-0275-0 NTC 30A 1 OHM 1 R21 RE-001201-GP 471B-120J-1-X 12 5% 5W METAL OXIDE FILM 2 R28, R29 RE-012004-GP 4719-121J-1-X RMF 2W 120 OHM 5% 1 R17 RE-120003-GP 4701-202J-C RCF 1/8W 2K 5% ATS 1 R13 RE-168002-GP 4701-682J-C RCF 1/8W 6.8K 5% ATS 2 R9, R14 RE-210006-GP 4720-103J-J RMG 1/10W 10K 5% 0805 4 R31–R34 (January 2002 and later) 4701-474J-C RCF 1/8W 470K 5% ATS 1 R12 WP-002454-00 Channel 1 Module Assembly (right) (was PCB-QZ030C-PWR2) CA-210012-GP 153H-102J-5-IQ CM 100V .001UF 5% RL 5X 2 C131, C231 CA-215004-GP 153R-152J-5-XQ CM 250V 0.0015UF 5% RL 1 C114 CA-233004-GP 153F-332J-5-KW CM 50V .0033UF 5% RL 2 C172, C179 CA-322006-GP 153F-223J-5-LQ CM 50V .022UF 5% RL 2 C116, C119 CA-368004-GP 153R-683J-5-WWM 0.068UF 5% 250V FILM DIPPED 2 C124, C126 CA-410018-GP 153R-104J-5-YRM CM 250V .1UF 5% RL 2 C174, C175 CA-415004-GP 153F-154J-5-NLM 0.15U,5%,50V,CM,,RBT,7.5X 4 C108, C109, C208, C209 CA-422006-GP 153F-224J-5-NLM CM 50V 0.22UF 5% RL 2 C107, C207 CA-610009-GP 157Q-106M-5-IU CE 35V 10UF 20% RL 5 X 11 1 C171 CA-622007-GP 157E-226M-5-IUN CE 25V 22uF 20% RL 5X11 1 C129 CA-647006-GP 157D-476M-5-LUN CE 16NP 47UF 20% RL 2 C106, C206 CA-710009-GP 157E-107M-5-KW CE 25V 100UF 20% RL 4 C105, C173, C180, C205 CA-710010-GP 157D-107M-5-OUN CE 16NP 100UF 20% RL 8X11 2 C125, C225 CA-722006-GP 157E-227M-5-PU CE 25V 220UF 20% RL 4 C112, C113, C212, C213 CA-912001-GP 8910-0494-0 12000UF,20 PCNT,63V,CE,RL,, 4 C120–C123 CO-000217-GP 2102-130S-003 CONN 13 PIN STRAIGHT WAFER 1 J104 CO-000222-GP 2101-1991-0 8-PIN IC SOCKET 2 REF: U101, U201 CO-000223-GP 2101-2081-0 26-PIN DUAL ROW IEC 1 J103 HW-000020-GP 4134-8851-0 FUSE HOLDER 6.3MM 2 F100 IC-000211-GP 3130-2430-0 IC NE5532 OP AMP 2 U101, U201 MS-000127-GP 5120-0501-0 FUSE T20A/125V 6.4X32MM 1 F100 PT-110002-GP 4756-1016-3-06 TRIM POT,100,20 PCNT,0.15W,, 1 R131 *PT-225000-GP *4751-0110-0 RES VAR 2.5K RT ANGLE PCB 2 R112, R212 (May 2002 and later) *PT-310006-GP *4750-6200-0 VR V012CPH, D-SHAFT 10K 2 R112, R212 (April 2002 and earlier) QD-000197-GP 3700-4529-R LED 4.7MM RED W/STAND 2 LD100, LD200 QD-000199-GP 3700-4530-Y LED 4.7MM W/STAND YELLOW 2 LD101, LD201 RMX Series Technical Service Manual (2RU models) 29 TD-000098-00 rev. C RMX2450 Channel 1 module (continued) QSC part # Revised QSC # Description Qty. Notes or Component Reference QD-000202-GP 4804-0040-1 DIODE IN4004 AL 4 D10, D12, D117, D118 QD-000203-GP 4838-15V6-2 DIOD ZNR 15V 1W SILICON EPIT 4 D100, D101, D200, D201 QD-000206-GP 4804-9340-2 DIOD RECT FAST, IN4934 AT 2 D108, D109 QD-000207-GP 4860-5020-5 XISTOR NPN 250V 0.5A MJE15032 1 Q105 QD-000208-GP 4860-5060-5 TR 2SA1943 T0-3P (L) 3 Q103, Q107, Q109, Q111 QD-000209-GP 4860-5050-5 TR 2SC5200 T0-3P (L) 3 Q104, Q108, Q110, Q112 QD-000210-GP 4860-5030-5 XISTOR PNP 250V MJE15033 1 Q106 *QD-000212-GP *4837-5B10-2 DIODE ZENER 1/2W 5.5-5.8V 2 D107, D110 (December 2003 and earlier) QD-000215-GP 4840-2190-0 DIODE MUR1520 15A 200V 2 D175, D176 QD-000218-GP 4837-3B20-2 DIOD ZNR 3.8-4.0V 1/2 HZ SER 1 D170 QD-000219-GP 4838-10V6-2 DIODE ZENER 1.3W 10V TEMIC 1 D174 QD-000220-GP 4838-12V6-2 DIODE ZENER 1W 12V AT TEMIC 1 D178 *QD-000221-GP 8910-0482-0 SRV-TRIAC 600V 40A MAC224 A8 1 Q113 (replaced by SG-000522-00 kit) *QD-000261-GP * TRIAC 600V 40A BTA41-600B,TOP3 1 Q113 (part of SG-000522-00 kit for replacing MAC224 triac) *QD-000269-GP * DIODE ZENER 5.1V 5% .25W DO-35 2 D107, D110 (January 2004 and later) QD-000347-GP 490F-Z440-5 FETN,60V,50A,150W,,, 2 Q170, Q174 QD-000350-10 4860-5250-5 TR 2N5064 SCR 2 D119, D120 RE-.02201-GP 471A-022K-5-N 0.22 OHM 5% 3W THK FLM 8 R142, R143, R148, R149, R152, R153, R156, R159 RE-.15003-GP 4719-1R5J-1-X 1.5 OHM 5% 2W THK FLM 2 R181, R182 RE-.33001-GP 4718-3R3J-1-X RMF 1W 3.3 OHM 5% 3 R146, R147, R20 RE-.56006-GP 4719-5R6J-1-X RMF 2W 5.6 OHM 5% 1 R160 RE-000250-GP 8910-0488-0 NTC RES 50 OHM 1 R134 RE-000260-GP 8910-0274-0 THERMAL PTC 60C 100 OHM 1 R4 RE-001005-GP 4715-100J-2 RMF 1/4W 10 OHM 5% 1 R163 RE-001201-GP 471B-120J-1-X 12 5% 5W METAL OXIDE FILM 4 R154, R155, R161, R162 RE-002202-GP 4718-220J-2-P RMF 1W 22 5% AT FP 2 R136, R137 RE-010008-GP 4715-101J-2 RMF 1/4W 100 OHM 5% 1 R164 RE-122006-GP 4756-2226-3-06 SVR 2.2K H3 7X7 2 R139, R140 RE-122008-GP 471B-222J-1-X RMF 5W 2.2K 5% METAL 3 R157, R158, R198 RE-151003-GP 471B-512J-1-X RMF 5W 5.1K 5% AL METAL 2 R180, R188 RE-182002-GP 471B-822J-1-X RMF 5W 8.2K 5% AL METAL 4 R118, R119, R133, R135 RE-212002-GP 4718-123J-2-X RMF 1W 12K 5% AT METAL 2 R177, R194 RE-215007-GP 4718-153J-2-X RMF 1W 15K 5% METAL 1 R165 RE-223202-GP 4717-2322-2 RMF 1/2W 23.2K 1% AT 3 R122, R123, R222 XF-000190-GP 1804-1040-0 SPRING COIL 2UH (14GA WIRE) 1 L100 Channel 1 SMT parts CA-027003-GP 15CG-270J-6-CF CTC 0/30 27P 5% 1206 2 C111, C211 CA-047005-GP 150F-470J-J-BD CC 50V 47PF 5% 0805 5 C110, C170, C176, C177, C210 CA-110004-GP 150F-101K-J-BD CC 50V 100P 10% 0805 1 C132 CA-110005-GP 150F-101J-J-BD CC 50V 100PF 5% 0805 1.2 1 C130 CA-118000-GP 150F-181K-J-BD CC 50V 180PF 5% 0805 4 C101, C103, C201, C203 CA-222007-GP 150F-222K-6-CF CC 50V 2200pF 10% 1206 1 1 C115 CA-310009-GP 150F-103M-J-BD CC 50V 0.01uF 20% 0805 1 1 C181 CA-410016-GP 150F-104M-6-CF CC 50V 0.1uF 20% 1206 1. 2 C104, C178 IC-000212-GP 3131-9730-0 IC NE5517D 1 U10 IC-000214-GP 3130-9240-0 LM311M VOLTAGE 2 U170, U171 QD-000201-GP 4804-1480-3 DIODE LL4148 SM 18 D102–D106, D111–D116, D171, D173, D177, D202, D203, D205, D206 QD-000204-GP 4860-0640-3 XISTOR NPN 60V 200MA 3904 SOT-23 4 Q101, Q102, Q171, Q173 QD-000205-GP 4853-9060-3 XISTOR PNP 40V 0.2A TR3906 SOT-23 4 Q100, Q172, Q175, Q200 RE-004702-GP 4720-470J-J RMG 1/10W 47 OHM 5% 0805 2 R170, R189 RE-007506-GP 4720-750J-J RMG 1/10W 75 OHM 5% 0805 1 R124 RE-010006-GP 4720-101J-J RMG 1/10W 100 5% 6 R109, R110, R127, R209, R210, R227 RE-027003-GP 4720-271J-J RMG 1/10W 270 OHM 5% 4 R113, R196, R213, R296 RE-039001-GP 4720-391J-J RMG 1/10W 390R 5% 0805 2 R120, R220 RE-082003-GP 4721-821J-6 RMG 1/8W 820 OHM 5% 1206 4 R115, R130, R132, R215 RE-082004-GP 4720-821J-J RMG 1/10W 820R 5% 0805 2 R111, R211 RE-110012-GP 4720-102J-J RMG 1/10W 1K 5% 0805 3 R102, R126, R202 RE-115004-GP 4720-152J-J RMG 1/10W 1.5K 5% 0805 1 R129 RE-120004-GP 4720-202J-J RMG 1/10W 2K 1% 0805 2 R190, R195 30 QSC Audio Products, LLC RMX2450 Channel 1 module (continued) QSC part # Revised QSC # Description Qty. Notes or Component Reference RE-122007-GP 4720-222J-J RMG 1/10W 2.2K 5% 0805 1 R191 RE-130103-GP 4720-3011-J RMG 1/10W 3.01K 1% 0805 2 R24, R175 RE-147001-GP 4720-472J-J RMG 1/10W 4.7K 5% 0805 8 R114, R138, R174, R179, R187, R193, R214, R238 RE-159003-GP 4720-592A-J 5.9K 1% 1/10W THK FLM 0805 2 R171, R184 RE-175003-GP 4720-752J-J RMG 1/10W 7.5K 5% 0805 2 R108, R208 RE-210007-GP 4720-103A-J 10K 1% 1/10W THK FLM 0805 8 R100, R101, R105, R106, R200, R201, R205, R206 RE-210006-GP 4720-103J-J RMG 1/10W 10K 5% 0805 3 R103, R128, R203 RE-212001-GP 4720-123J-J RMG 1/10W 12K 5% 0805 1 R176 RE-224001-GP 4720-243J-J 24.0K 1% 1/10W THK FLM 0805 4 R117, R121, R217, R221 RE-239001-GP 4720-393J-J RMG 1/10W 39K 5% 0805 2 R107, R207 RE-247004-GP 4721-473J-6 RMG 1/8W 47K 5% 1206 1 R125 RE-247005-GP 4720-473J-J RMG 1/10W 47K 5% 0805 1 R183 RE-268003-GP 4721-683A-6 RMG 1/8W 68K 1% 1206 4 R22A, R22B, R23A, R23B RE-315003-GP 4721-154J-6 RMG 1/8W 150K 5% 1206 6 R104, R173, R178, R186, R192, R204 RE-346401-GP 4721-4643-6 464K 1% 1/8W THK FLM 1206 3 R166, R167, R266 RE-347003-GP 4720-474J-J RMG 1/10W 470K 5% 0805 2 R172, R185 4721-101J-6 RMG 1/8W 100R 5% 1206 1 R197 4721-824J-6 RMG 1/8W 820K 5% 1206 2 R116, R216 WP-002453-00 Channel 2 Module Assembly (left) (was PCB-QZ030C-PWR1) CA-215004-GP 153R-152J-5-XQ CM 250V 0.0015UF 5% RL 1 C214 CA-233004-GP 153F-332J-5-KW CM 50V 3300pF 5% RL 6x12 2 C272, C279 CA-322006-GP 153F-223J-5-LQ CM 50V .022UF 5% RL 5% RL 2 C216, C219 CA-368004-GP 153R-683J-5-WWM 0.068UF 5% 250V FILM DIPPED 2 C224, C226 CA-410018-GP 153R-104J-5-YRM CM 250V 0.1u 5% RL 2 C274, C275 CA-547008-GP 157R-475M-5-OV 4.7UF 20% 250V ELECTRO RAD 1 C7 CA-610009-GP 157Q-106M-5-IU CE 35V 10UF 20% RL 5 X 11 1 C271 CA-622007-GP 157E-226M-5-IUN CE 25NP 22UF 20% RL 5X11 1 C229 CA-647005-GP 157F-476M-5-LU CE 50V 47UF 20% RL 1 C8 CA-710009-GP 157E-107M-5-KW CE 25V 100UF 20% RL 2 C273, C280 CA-912001-GP 8910-0494-0 12000UF,20 PCNT,63V,CE,RL,, 4 C220–C223 CO-000214-GP 2102-031S-004 CONN 3 PIN STRAIGHT WAFER 1 J257 CO-000217-GP 2102-130S-003 CONN 13 PIN STRAIGHT WAFER 1 J204 QD-000198-GP 3700-4531-G LED 4.7MM GRN W/STAND 1 LD1 HW-000020-GP 4134-8851-0 FUSE HOLDER 6.3MM 2 REF: F200 MS-000127-GP 5120-0501-0 FUSE T20A/125V 6.4X32MM 1 F200 PT-110002-GP 4756-1016-3-06 TRIM POT,100,20 PCNT,0.15W,, 1 R231 RE-.02201-GP 471A-022K-5-N 0.22 OHM 5% 3W THK FLM 8 R242, R243, R248, R249, R252, R253, R256, R259 RE-.15003-GP 4719-1R5J-1-X 1.5 OHM 5% 2W THK FLM 2 R281, R282 RE-.33001-GP 4718-3R3J-1-X RMF 1W 3.3 OHM 5% 2 R246, R247 RE-.56006-GP 4719-5R6J-1-X RMF 2W 5.6 OHM 5% 1 R260 RE-000250-GP 8910-0488-0 NTC RES 50 OHM 1 R234 RE-000260-GP 8910-0274-0 THERMAL PTC 60C 100 OHM 1 R7 RE-001005-GP 4715-100J-2 RMF 1/4W 10 OHM 5% 1 R263 RE-001201-GP 471B-120J-1-X 12 5% 5W METAL OXIDE FILM 4 R254, R255, R261, R262 RE-002202-GP 4718-220J-2-P RMF 1W 22 5% AT FP 2 R236, R237 RE-010008-GP 4715-101J-2 RMF 1/4W 100 OHM 5% 1 R264 RE-122006-GP 4756-2226-3-06 SVR 2.2K H3 7X7 2 R239, R240 RE-122008-GP 471B-222J-1-X RMF 5W 2.2K 5% METAL 3 R257, R258, R298 RE-151003-GP 471B-512J-1-X RMF 5W 5.1K 5% AL METAL 2 R280, R288 RE-182002-GP 471B-822J-1-X RMF 5W 8.2K 5% AL METAL 4 R218, R219, R233, R235 RE-212002-GP 4718-123J-2-X RMF 1W 12K 5% AT METAL 2 R277, R294 RE-215007-GP 4718-153J-2-X RMF 1W 15K 5% METAL 1 R265 RE-233002-GP 4719-333J-2-X RMF 2W 33K 5% METAL 2 R2, R5 QD-000202-GP 4804-0040-1 DIODE IN4004 AL 5 D1, D11, D13, D217, D218 QD-000203-GP 4838-15V6-2 DIOD ZNR 15V 1W SILICON EPIT 2 D8, D15 QD-000206-GP 4804-9340-2 DIOD RECT FAST, IN4934 AT D208, D209 QD-000207-GP 4860-5020-5 XISTOR NPN 250V 0.5A MJE15032 1 Q205 QD-000208-GP 4860-5060-5 TR 2SA1943 T0-3P (L) 3 Q203, Q207, Q209, Q211 QD-000209-GP 4860-5050-5 TR 2SC5200 T0-3P (L) 3 Q204, Q208, Q210, Q212 QD-000210-GP 4860-5030-5 XISTOR PNP 250V MJE15033 1 Q206 RMX Series Technical Service Manual (2RU models) 31 TD-000098-00 rev. C RMX2450 Channel 2 module (continued) QSC part # Revised QSC # Description Qty. Notes or Component Reference *QD-000211-GP *4860-8890-0 TR MPS A06VCE 80V NS 1 Q5 (December 2001 and earlier) *QD-000212-GP *4837-5B10-2 DIODE ZENER 1/2W 5.5-5.8V 2 D207, D210 (December 2003 and earlier) QD-000215-GP 4840-2190-0 DIODE MUR1520 15A 200V 2 D275, D276 QD-000218-GP 4837-3B20-2 DIOD ZNR 3.8-4.0V 1/2 HZ SER 1 D270 QD-000219-GP 4838-10V6-2 DIODE ZENER 1.3W 10V TEMIC 1 D274 QD-000220-GP 4838-12V6-2 DIODE ZENER 1W 12V AT TEMIC 1 D278 *QD-000221-GP 8910-0482-0 SRV-TRIAC 600V 40A MAC224 A8 1 Q213 (replaced by SG-000522-00 kit) *QD-000269-GP * DIODE ZENER 5.1V 5% .25W DO-35 2 D207, D210 (January 2004 and later) QD-000347-GP 490F-Z440-5 FETN,60V,50A,150W,,, 2 Q270, Q274 QD-000350-10 4860-5250-5 TR 2N5064 SCR 2 D219, D220 XF-000190-GP 1804-1040-0 SPRING COIL 2UH (14GA WIRE) 1 L200 Channel 2 SMT Parts CA-047005-GP 150F-470J-J-BD CC 50V 47PF 5% 0805 3 C270, C276, C277 CA-110004-GP 150F-101K-J-BD CC 50V 100P 10% 0805 1 C9 CA-222007-GP 150F-222K-6-CF CC 50V 2200pF 10% 1206 1 1 C215 CA-310009-GP 150F-103M-J-BD CC 50V 0.01uF 20% 0805 1 1 C281 CA-410014-GP 150F-104M-J-BD 0.1UF 10% 50V CER X7R 0805 1 C11 CA-410016-GP 150F-104M-6-CF CC 50V 0.1uF 20% 1206 1. 1 C278 IC-000214-GP 3130-9240-0 LM311M VOLTAGE 2 U270, U271 QD-000201-GP 4804-1480-3 DIODE LL4148 SM 1 D14 (December 2001 and earlier) QD-000201-GP 4804-1480-3 DIODE LL4148 SM 18 D2–D7, D9, D204, D211–D216, D271, D273, D277 QD-000201-GP 4804-1480-3 DIODE LL4148 SM 2 D16, D17 (January 2002 and later) QD-000204-GP 4860-0640-3 XISTOR NPN 60V 200MA 3904 SOT-23 6 Q8, Q9, Q201, Q202, Q271, Q273 QD-000205-GP 4853-9060-3 XISTOR PNP 40V 0.2A TR3906 SOT-23 1 Q4 (December 2001 and earlier) QD-000205-GP 4853-9060-3 XISTOR PNP 40V 0.2A TR3906 SOT-23 4 Q6, Q7, Q272, Q275 QD-000205-GP 4853-9060-3 XISTOR PNP 40V 0.2A TR3906 SOT-23 1 Q15 (January 2002 and later) QD-000213-GP 4860-5110-3 TR KST42 1 Q1 RE-004702-GP 4720-470J-J RMG 1/10W 47 OHM 5% 0805 3 R25, R270, R289 RE-007506-GP 4720-750J-J RMG 1/10W 75 OHM 5% 0805 1 R224 RE-082003-GP 4721-821J-6 RMG 1/8W 820 OHM 5% 1206 2 R230, R232 RE-115004-GP 4720-152J-J RMG 1/10W 1.5K 5% 0805 1 R229 RE-120004-GP 4720-202J-J RMG 1/10W 2K 1% 0805 3 R8, R290, R295 RE-122007-GP 4720-222J-J RMG 1/10W 2.2K 5% 0805 1 R291 RE-130103-GP 4720-3011-J RMG 1/10W 3.01K 1% 0805 1 R275 RE-147001-GP 4720-472J-J RMG 1/10W 4.7K 5% 0805 4 R274, R279, R287, R293 RE-159003-GP 4720-592A-J 5.9K 1% 1/10W THK FLM 0805 2 R271, R284 RE-168002-GP 4721-682J-6 RCF 1/8W 6.8K 5% ATS 1 R19 RE-210006-GP 4720-103J-J RMG 1/10W 10K 5% 0805 1 R228 RE-212001-GP 4720-123J-J RMG 1/10W 12K 5% 0805 1 R276 RE-247004-GP 4721-473J-6 RMG 1/8W 47K 5% 1206 1 R225 RE-247005-GP 4720-473J-J RMG 1/10W 47K 5% 0805 1 R283 RE-315003-GP 4721-154J-6 RMG 1/8W 150K 5% 1206 5 R10, R273, R278, R286, R292 RE-322001-GP 4721-224J-6 RMG 1/8W 220K 5% 1206 2 R18, R26 RE-330001-GP 4721-334J-6 RMG 1/8W 330K 5% 1206 1 R27 RE-346401-GP 4721-4643-6 464K 1% 1/8W THK FLM 1206 1 R15 RE-347003-GP 4720-474J-J RMG 1/10W 470K 5% 0805 2 R272, R285 RE-410002-GP 4721-105J-6 RMG 1/8W 1M 5% 1206 2 R3, R6 4721-101J-6 RMG 1/8W 100R 5% 1206 1 R30 WP-002455-00 Input Board Assembly (was PCB-QZ030C-INP) CA-147006-GP 150F-471J-5-OF 470PF 5% 50V CER NPO 4 C1, C2, C3, C4 CO-000204-GP 2113-1337-1 CONN XLR F VERT PLASTIC 2 J101, J201 CO-000235-GP 2113-1652-0 PHONE JACK 06.4 2 J102, J202 SW-000089-GP 5200-4713-0 10 POLE DIP SWITCH 1 SW1 WC-000194-GP 7010-9860-0 RIBBON CABLE 26 PIN IEC 1 J1 WP-002452-00 Output Board Assembly (was PCB-QZ030C-OUT) CO-000236-GP 2113-1336-1 SPEAKON NEUTRIK 4 WIRE 2 J100, J200 PA-000043-00 2113-1338-0 PLATE ASSY,PLX/RMX,OUTPUT,, 1 J103 PL-000055-00 4154-2111-0 OUTPUT POST PLUG FOR CE (RED) 2 For European models only PL-000056-00 4154-2121-0 OUTPUT POST PLUG FOR CE (BLACK) 2 For European models only 32 QSC Audio Products, LLC RMX Series Technical Service Manual (2RU models) 33 TD-000098-00 rev. C 8 THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION WHICH IS THE PROPERTY OF QSC AUDIO PRODUCTS, THAT MAY NOT BE DISCLOSED, REPRODUCED OR USED WITHOUT EXPRESS WRITTEN CONSENT FROM QSC AUDIO PRODUCTS. 7. Schematics 7 and 6 diagrams 5 4 3 2 1 00 D D CCBBAA7.1 RMX Assembly/Disassembly Diagram 1 of 2 (All models) REVISIONS REVDESCRIPTIONEFF DATE CHK APPROVED DATE A XX RMX 850: WP-008502-00; was PCB-QZ010C-PSU SCREW 4 REQD RMX 1450: WP-008502-00; was PCB-QZ020C-PSU RMX 1850HD: PCB-QZ101C-PSU PWR PCB 00 RMX 2450: PCB-QZ030C-PSU 00 SCREW 8 REQD RMX 850: PCB-QZ010C-INP INPUT PCB 00 RMX 1450: PCB-QZ020C-INP RMX 1850HD: PCB-QZ100C-INP RMX 2450: PCB-QZ030C-INP WASHER00 00 HEX NUT FAN 00 00 FLAT WASHER TOROID CHASSISSWITCH 00 OUTPUT PCB RMX 850: PCB-QZ010C-OUT RMX 1450: PCB-QZ020C-OUT RMX 1850HD: PCB-QZ100C-OUT RMX 2450: PCB-QZ030C-OUT SCREW PWR CONNECTOR PARTS LIST AUDIO PRODUCTS, INC. 00 SCREW 2 REQD 00 00 SCREW 2 REQD 00 HEX NUT 00 2 REQD RACK EAR 2 REQD 00 SCREW 4 REQD00 00 00 FAN GUARD 00 SCREW 4 REQD00 SCREW 2 REQD 00 UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN INCHES. TOLERANCES ARE: COSTA MESA, CALIFORNIA THIS DRAWING USED IN CONJUNCTION WITH SCHEMATIC DWGs MAIN PCB SH-002451, INPUT PCB XO, DECIMALS DECIMALS ANGLES APPROVALS DATE .xx ± .02 .xxx ± .010 ±1/2 DEBURR EDGES .XXX R MAX DRAWN MILA P. 12-07-2000 CHECKED CHASSIS ASSY MATERIAL RMX 2450 WIRING DIAGRAM SH-002450-00 AND FINAL ASSY PF-002450-00. NOTES: UNLESS OTHERWISE SPECIFIED SEE TABULATION BLOCK X RMX 2450 FINISH ISSUED NEXT ASSY USED ON DDWG SCALE1/2 SHEET 1 OF 2 NO. PA-002450-00 REV APPLICATION DO NOT SCALE DRAWING SHREV 8 7 6 5 4 3 2 1 DWG NO. PA-002450-001 8 7 6 5 4 3 2 1 THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION WHICH IS THE PROPERTY OF QSC AUDIO PRODUCTS, THAT MAY NOT BE DISCLOSED, REPRODUCED OR USED WITHOUT EXPRESS WRITTEN CONSENT FROM QSC AUDIO PRODUCTS. CHANNEL MODULES RMX 850: WP-008503-00; was PCB-QZ010C-PWR1 (left or Channel 1) RMX 1450: WP-014502-00; was PCB-QZ020C-PWR1 (left or Channel 1) RMX 1850HD: WP-018504-00; was PCB-QZ100C-PWR1 (left or Channel 2) RMX 2450: WP-002454-00; was PCB-QZ030C-PWR1 (left or Channel 2) D CHANNEL MODULES SCREW 5 REQD SCREW D RMX 850: WP-008504-00; was PCB-QZ010C-PWR2 (right or Channel 2) 6 REQD RMX 1450: WP-014503-00; was PCB-QZ020C-PWR2 (right or Channel 2) RMX 1850HD: WP-018503-00; was PCB-QZ100C-PWR2 (right or Channel 1) RMX 2450: WP-002453-00; was PCB-QZ030C-PWR2 (right or Channel 1) CCBBKNOB 2 REQD CHASSIS NUT SCREW A4 REQD WIRE ASSY A7.2 RMX Assembly/Disassembly Diagram 2 of 2 (All models) DDWG NO. PA-002450-00 REV SCALE1/2 SHEET 2 OF 2 SHREV 8 7 6 5 4 3 2 1 34 QSC Audio Products, LLC DWG NO. PA-002450-002 1 8 7 6 5 4 3 2 THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION WHICH IS THE PROPERTY OF QSC AUDIO PRODUCTS, THAT MAY NOT BE DISCLOSED, REPRODUCED OR USED WITHOUT EXPRESS WRITTEN CONSENT FROM QSC AUDIO PRODUCTS. D 26-LINE RIBBON CABLE CHANNEL-1 D CONNECTS BREAKAWAY INPUT PCB TO MAIN PCB ROUTE THIS GROUND ROUTE THIS GROUND TO "P" GND AT TO "A" GND AT HEAT SINK COMMON JI-2 INPUT CABLE BETWEEN CH A AND CH B C101 R20 J204:12 2 J101 31180p-5% 6.8-1W 12 A1 P1 J203:1 ^C_0805 1 R J203:2 J102 T2 SJ5:5 R102 5 C106 J5:44 J203:3 3 J104:12 GND 1 J1:1 R105 12 RINGTIP J1:2 +IN A 2 10.0K R100 ^R_0805 J104:13 10.0K ^R_0805 13 J1:3 -IN A 3 13 NE5532 J204:13 U101:1 CH1_+IN 1K 3 + R101 P I^R_0805 CHANNEL 1 GAIN RCH1_-IN - T10.0K 2 S6 % 06 5R113 R2% 03 ^R_0805 1E5pR106 I2W CR112 1 _01pR7CC_0270 R4^7CJ1:4 AJ5:3 J203:4 10.0K 4^6 B0^R_0805 R116: 6 23 4 4 1N^R_0805 1390K (up to Apr 2002) 1GND A1 _OC103 IRCHASSIS_GND 464K (effective May 2002) RTI^SO180p-5% R112: PJ5:2 10K LINEAR (up to Apr 2002) E^C_0805 V2 I2.5K LINEAR (effective May 2002) FJ5:1 RIGHT ANGLE POT C107 1 CR .22-5% CJ202TIP TFILT-BYP A SJ203:5 5 C108 6 A1 6 % 0522 1pC_06 7% C054^24 CH2_-IN 1pC_07C4^CH2_+IN FILT-CAP A D107: 5.6V 0.25W (up to Feb 2002) RING FILT-SEND A 4.7V 0.25W (Mar 2002–May 2003) 5.1V 0.25W (effective June 2003) 2 J1:5 J2013CLIP-LIM A 5 SW TO GND FOR CLIP LIM C109 1GND J1:6 J203:6 6 SEE SH 3 .15-5% .15-5% J1:7 J203:7 +14V SW1:1 FILT-CAP A 7 7 C102 J1:8 8 J1:9 0.1-50V 2 12 J203:8 CLIP LIM A (1) 1 11 FILT-SEND A J203:9 8 9 J1:10 J203:10 P1 SW1:2 FILT-BYP A 9 10% ^C_1206 FILTER 30 HZ (2) GND 10 J1:11 J203:11 10 U10:1 R114: 4.7K (up to Apr 2002) FILTER BYPASS A (3) 3 SW1:3 13 11 J1:12 J203:12 11 BR MONO FEED LM13600M+ 3 1.2K (effective May 2002) D110: 12 12 5.6V 0.25W (up to Feb 2002) 4.7V 0.25W (Mar 2002–May 2003) 8 4 14 PARALLEL ^U_LM13600 INPUTS 7 5 2 GND 1 SW1:4 - 4 J1:13 5.1V 0.25W (effective June 2003) 13 R127: (4, 5) J1:14 100 (up to Feb 2002) 5 75 (effective Mar 2002) 05 15 14 K 3 800.010_R1R15 ^J203:16 16 H SVERA NOTES: UNLESS OTHERWISE SPECIFIED 1 J1:15 J203:13 13 J203:15 15 BR_RET BR_BAL 16 J1:16 C104 SW1:5.1-50V-10% BR M SEND (HI-SIG A) ^C_1206 BR MONO FEED J203:14 ΩGND 14 Ω SW1:6 BRIDGE 6 16 BR_CUT MONO (6, 7) R120: 270 (up to Apr 2002) 230 (May–July 2002) CLIP LIM B (10) SW1:7 17 J1:17 J203:17 17 7 17 J1:18 J203:18 FILT BYP B 18 18 GND J1:24 24 J1:25 25 J1:26 26 F_BYP_B J203:19 19 J203:20 20 9 19 J203:21 21 J203:22 22 10 20 J1:23 J203:23 23 23 J203:24 24 J203:25 25 J203:26 26 TH_A B FILTER BYPASS B (8) 8 SW1:8 18 FILT SEND B (POT) 19 J1:19 F_SND_B C100 FILT CAP B 20 J1:20 0.1-50V 10% SEE SH 3 SW1:9 F_30_B FILTER 30 HZ (9) 21 116 J1:21 -14V ^C_1206 ΩSEE SH 3 Ω SW1:10 22 J1:22 CLIP_B 232 Ω (effective August 2002) CLIP LIM B GND -IN B -IN_B +IN B +IN_B GND Gray shading indicates Asignal path 5. J104, J204 ARE CONNECTED PIN TO PIN BY 13-LINE RIBBON CABLE. 4. PART NUMBERING SCHEME PARTS IN COMMON TO BOTH CH: 1-99. CH 1 PARTS 101-199, CH 2 PARTS 201-299. 3. COMPONENTS MARKED WITH ! ARE SAFETY CRITICAL PARTS. 2. COMPONENTS WITH VALUE PREFIXED WITH A "^" REPRESENT SMT COMPONENTS. 1. THIS DRAWING USED IN CONJUNCTION WITH ASSEMBLY WP-000851-00 8 7 6 5 RMX Series Technical Service Manual (2RU models) 35 TD-000098-00 rev. C R104 150K ^R_1206 C106: 10 μF 50V NP (up to April 2002) 47 μF 16V NP (effective May 2002) 1 7.3 RMX850 Schematic Diagram 1 of 3 Channel 1 A1 R108 7.50K ^R_0805 R109 100 ^R_0805 CV 5 520-1001P1 R126 A1 1K ^R_0805 R114 ^R_0805 R107 ^R_0805 39K A1 CWCCW R111 270 ^R_0805 Q100 CLIP CH 1 3906 5 7 02810_RR6 ^08 K 21011P1 5_R1R^R117 20.0K ^R_0805 A1 R110 100 ^R_0805 +VCC_A J204:10 10 J104:10 10 NCNCNC +15V_A D103 1N4148 R115 820 ^R_1206 6 09 K 210115_R1R^R120 ^R_0805 A1 D100 15V-1W P1 LD100 RED -15V_A 4 4 J204:4 J104:4 C111 56p-200V-COG ^C_1206 R122 10.0K-1%-1/2W R123 9.09K-1%-1/2W SP_A C114 0.001u,100V5% ^C_1206 C110 56p ^C_0805 C112 220-25V D101 15V-1W P1 6 - D102 7 5 + 1N4148 U101:2 NE5532 R121 20.0K ^R_0805 C113 220-25V R125 47K ^R_1206 84 Q101 3904D104 1N4148 R130 820 ^R_1206 DD107 8 017 J104:77 J204:7 R139 R128 10K ^R_0805P1 R129 1.5K ^R_0805 YELLOW R136 22-1W 5 J104:5 FP Q102 5 J204:5 3904 LD101 SIG CH 1 6 J204:6 6 J104:6 D105 1N4148 D106 1N4148 D114 1N4148 Q104 2SC5200 B 4 3 2 SIZE D FSCM NO. DWG NO. REV SCALE CAD FILE NO. SHEET W R131 100 C116 .022 NTC D110 R134 BIAS 50 1N4934 D109 CWCCW R135 2.0K-5W P1 +VCC_A D108: 1N4934 (up to Feb 2002) 1N4004 (effective Mar 2002) W 2.2K JP14 J103 + R140 2.2K Q108 2SC5200 8 41 1141ND1R137 22-1W R133 FP 2.0K-5W WP-000850-00 RMX 850 QTY ITEM NO. PART NO. DESCRIPTION VENDOR PARTS LIST UNLESS OTHERWISE SPECIFIED CONTRACT NO. DIMENSIONS ARE IN INCHES. AUDIO PRODUCTS, INC. DIMENSIONS PER ANSI Y14.5-1982 TOLERANCES ARE: COSTA MESA, CALIFORNIA DECIMALS DECIMALS ANGLES.XX +- .XXX +- O APPROVALS DATE SCHEMATIC DIAGRAM DEBURR EDGES .XXX R MAX DRAWN PAT QUILTER MATERIAL CHECKED RMX 850 FINISH ISSUED NEXT ASSY USED ON CAD SEED FILE NO. 3 APPLICATION DO NOT SCALE DRAWING Thu Sep 07, 2000 RMX850-3.sch 1 OF 3 D113 1N4148 CWCCW 1N4148 D112 Q103 2SA1943 CWCCW W R124 47 ^R_0805 C115 0.0022u,10% ^C_1206 NEG CURRENT LIMIT POS CURRENT LIMIT C117 .0033 C118 .0033 R132 820 ^R_1206 REV 1 PROTOTYPE RELEASE 2 3 CLEAN UP BY AA +67V W W W 2 8 2 3334-4-5-111222222RRR...000Q107 Q109 2SA1943 2SA1943 D116 1N4148 C120 Q105 MJE15032 4700-80V R146 6.8-1W R157 C119 820-5WP1 .022 R158 R147 820-5W 6.8-1W Q106 MJE15033 D115 1N4148 Q110 2SC5200 C121 4700-80V D118 1N4004 R143 0.22-3W R149 0.22-3W R153 0.22-3W -67V -VCC_A R22 33K ^R_1206 D117 1N4004 C124 .068-5% 250V 5-WAY BINDING R161 12-5W POST CH A BR-NEG J103 - P1 P1 BR_BAL SP_B 2-25-00 PLOT DATE: NONE REVISION DESCRIPTION 3-01-00 3-10-00CHANNEL 1 L100 E100 BR-POS 2uH SPEAKER CONNECTORS ON BREAK-AWAY PCB. CONTINUED, SHEET 2 R160 5.6-2W WIRES TO BREAK-AWAY SPEAKER OUTPUT PCB SPEAKER OUTPUT PCB R24 3.3K ^R_0805 SH-000850-00 P:RMXQSCRMX850 Thu Sep 07, 2000 R162 12-5W P1 11 J104:11 11 J204:11 SP_A 2+ 1+ 2- 1- J100 SPEAKON E101 JP13 4 SH-000850-00 APPROVED / DATE EFF. DATE CHK R23 33K ^R_1206 PLOT DATE: 1 1 DWGNO. THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION WHICH IS THE PROPERTY 7 6 5 4 3 2 1 OF QSC AUDIO PRODUCTS, THAT MAY NOT BE DISCLOSED, REPRODUCED OR USED WITHOUT EXPRESS WRITTEN CONSENT FROM QSC AUDIO PRODUCTS. 8 D D C201 180p-5% ^C_0805 R205 10.0K A1 ^R_0805 NE5532 C206: +IN_B R200 R202 U201:1 10.0K 1K 3 + 10 μF 50V NP (up to April 2002) C206 47 μF 16V NP (effective May 2002) SEE SH 1 ^R_0805 ^R_0805 2 - 1 WC-IN_B R201 R206 R212 W R213 +15V_B 10.0K 10.0K 270 ^R_0805 W C^R_0805 ^R_0805 C6 A1 0R216: 6 21C203 390K (up to Apr 2002) 12R212: _R464K (effective May 2002) R10K LINEAR (up to Apr 2002) ^CSEE SH 1 180p-5% 2.5K LINEAR (effective May 2002) ^C_0805 RIGHT ANGLE POT C207 D207: 5.6V 0.25W (up to Feb 2002) 4.7V 0.25W (Mar 2002–May 2003) 5.1V 0.25W (effective June 2003) CF_30_B D208: F_SND_B .22-5% 1N4934 (up to Feb 2002) 1N4004 (effective Mar 2002) F_BYP_B C210 56p C208 ^C_0805 SEE SH 3 +14V .15-5% 5 08 K 800025._5 R7R0R214: 7 K ^810.04.7K (up to Apr 2002) 20_R21.2K (effective May 2002) R^A1 U10:2 LM13600M + 14 10 12 15 D210: 5.6V 0.25W (up to Feb 2002) 6 1- 13 4.7V 0.25W (Mar 2002–May 2003) 9 5.1V 0.25W (effective June 2003) R127: 100 Ω (up to Feb 2002) 75 Ω (effective Mar 2002) A1 R210 270 6 V 0^R_0805 54 5 K 200201-225_01RC0R1^-14V R220: 270 (up to Apr 2002) 230 (May–July 2002) SW-GND FOR CLIP LIM H SVERAA 1 5 7 008K 209R_3R^5 05 80089 1 _0 0 010R00_22^116 RRR5 ^08 K 02K 3 10810025.0_2R10_RR1^R^B Q200 3906 SEE SH 1 SEE SH 3 ΩCLIP_B Ω 232 Ω (effective August 2002) SEE SH 1 BR_RET BR MONO RETURN -- CAUTION, SENSITIVE NODE Gray shading indicates signal path NOTES: UNLESS OTHERWISE SPECIFIED 8 7 6 5 36 QSC Audio Products, LLC R214 ^R_0805 R215 820 ^R_1206 A1 C209 .15-5% 84 +VCC_B -15V_B 6 09 K 210125_1RR^C211 -VCC_B 56p-200V-COG ^C_1206 R220 270 ^R_0805 R221 20.0K ^R_0805 R222 10.0K-1%-1/2W 6 - 7 5 + U201:2 NE5532 LD200 RED CLIP CH 2 7 5 2028R0_R^P1 7.4 RMX850 Schematic Diagram 2 of 3 Channel 2 D200 15V-1WC213 220-25V C212 220-25V 5 P1 04 827 024_RR^D207 D201 15V-1W CHANNEL-2 R228 10K ^R_0805 P1 1N4148 D212 R226 47K ^R_1206 C214 0.001u,100V5% ^C_1206 C215 0.0022u,10% ^C_1206 D202 1N4148 D203 1N4148 R232 820 ^R_1206 1N4148 D211 R233 2.0K-5W Q201 3904 D204 Q202 1N4148 3904 D205 1N4148 D206 1N4148 P1 1N4934 D209D208 R229 1.5K ^R_0805 W R231 100 BIAS CWCCW C216 .022 D210 R230 820 ^R_1206 R235 +67V +VCC_B 2.0K-5W W W W 2 2 8 3335-4-4-222222D217 222RRR...000R236 1N400422-1W LD201 FP YELLOW SIG CH 2 R260 R239NEG 5.6-2W CURRENT LIMIT P1C220 4700-80V W WIRES TO 2.2K R257 SPEAKER OUTPUT PCB C219 820-5W POS P1 .022 CURRENT LIMIT R234 C218 50 .0033 NTC MJE15033 D215 1N4148 W W 3 9 3344--222222FP RR..00L200 R240 R258 2uH 2.2K 820-5W C224 .068-5% R261 12-5W D218 1N4004 250V C221 Q206 4700-80V Q210 2SC5200 R237 22-1W Q204 Q208 P12SC5200 2SC5200 -VCC_B B 4 3 2 SIZE D FSCM NO. DWG NO. REV SCALE CAD FILE NO. SHEET D214 1N4148 Q203 2SA1943 R247 6.8-1W CWCCW W Q205 C217 .0033 MJE15032 Q207 2SA1943 D216 1N4148 D213 1N4148 R246 6.8-1W Q209 2SA1943 CWCCW -67V R253 0.22-3W SP_B JP15 E200 E201 JP16 BR-NEG P1 J203 + 5-WAY BINDING R262 12-5W POST CH B J203 - NONE OF CHANNEL B SPEAKER OUTPUT BR-POS 2+ 1+ 2- 1- J200 SPEAKON SPEAKER CONNECTORS ON BREAKAWAY PCB FROM SHEET ONE 3 RMX850-3.sch 2 3 Thu Sep 07, 2000 2 PLOT DATE: TO CH A SHEET 1 SH-000850-00 SH-000850-00 3 DWGNO. 7.5 RMX850 Schematic Diagram 3 of 3 Power Supply RMX Series Technical Service Manual (2RU models) 37 TD-000098-00 rev. C 1 8 7 6 5 4 3 2 THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION WHICH IS THE PROPERTY OF QSC AUDIO PRODUCTS, THAT MAY NOT BE DISCLOSED, REPRODUCED OR USED WITHOUT EXPRESS WRITTEN CONSENT FROM QSC AUDIO PRODUCTS. D D 2 J101 31J1:1 GND 1 RING R J102 TIP T+IN A 2 J1:2 R100 S10.0K J5:5 ^R_0805 R102 CH1_+IN 5 J5:4J1:3 CH1_-IN 4 -IN A 3 C106: 10 μF 50V NP (up to April 2002) 47 μF 16V NP (effective May 2002) 1K R101 P I^R_0805 RT10.0K SR^R_0805 EIRRAJ5:3 B3 NGND OICHASSIS_GND TISR112: R116: O10K LINEAR (up to Apr 2002) 499K (up to Apr 2002) PJ5:2 D107: E2.5K LINEAR (effective May 2002) 560K (effective May 2002) 5.6V 0.25W (up to Feb 2002) V2 ICH2_-IN RIGHT ANGLE POT 4.7V 0.25W (Mar 2002–May 2003) FJ5:1 5.1V 0.25W (effective June 2003) CH2_+IN 1 D108: CRING R 1N4934 (up to Feb 2002) 1N4004 (effective Mar 2002) CJ202 TIP TS2 J20131SW1:1 CLIP LIM A (1) 1 11 FILT-SEND A SW1:2 FILT-BYP A FILTER 30 HZ (2) 2 12 R114: 4.7K (up to Apr 2002) 1.2K (effective May 2002)SW1:3 FILTER BYPASS A (3) 3 13 GND SW1:4 4 14 J1:13 PARALLEL 13 D110: 5.6V 0.25W (up to Feb 2002) 4.7V 0.25W (Mar 2002–May 2003) 5.1V 0.25W (effective June 2003) INPUTS (4, 5) SW1:5 J1:14 R127: 100 Ω(up to Feb 2002) 5 15 GND 14 75 Ω (effective Mar 2002) BR M SEND (HI-SIG A) J1:15 SW1:6 15 6 16 BR MONO FEED J1:16 BRIDGE 16 MONO (6, 7) FILTER BYPASS B (8) R120: 270 (up to Apr 2002) 230 (May–July 2002) H SVERA 1 SW1:7 7 17 8 18 FILT BYP B SW1:8 B FILT SEND B (POT) SW1:9 FILT CAP B 9 19 ΩFILTER 30 HZ (9) Ω 232 Ω (effective August 2002) SW1:10 CLIP LIM B CLIP LIM B (10) 10 20 GND -IN B +IN B GND Gray shading indicates Asignal path 5. J104, J204 ARE CONNECTED PIN TO PIN BY 13-LINE RIBBON CABLE. 4. PART NUMBERING SCHEME PARTS IN COMMON TO BOTH CH: 1-99. CH 1 PARTS 101-199, CH 2 PARTS 201-299. 3. COMPONENTS MARKED WITH ! ARE SAFETY CRITICAL PARTS. 7.6 RMX1450 Schematic Diagram 1 of 3 2. COMPONENTS WITH VALUE PREFIXED WITH A "^" REPRESENT SMT COMPONENTS. 1. THIS DRAWING USED IN CONJUNCTION WITH ASSEMBLY WP-001451-00 Channel 1 NOTES: UNLESS OTHERWISE SPECIFIED 8 7 6 5 38 QSC Audio Products, LLC C3 470p5% ^C_1206 C1 470p5% ^C_1206 C101 180p-5% ^C_0805 1 J203:1 2 J203:2 3 J203:3 A1 FILT-BYP A 4 J1:4 6 J1:6 7 J1:7 4 J203:4 5 J203:5 6 J203:6 7 J203:7 C103 180p-5% ^C_0805 FILT-CAP A J1:5 5 SW TO GND FOR CLIP LIM GND 6 % 0522 1pC_06 7% C054^24 1pC_07C4^FILT-SEND A CLIP-LIM A FILT-CAP A 8 C102 J1:8 J203:8 8 J1:9 J203:9 9 9 P1 0.1-50V 10%J1:10 J203:10 ^C_1206 GND 10 10 J1:11 J203:11 U10:1 LM13600M 1111 11 BR MONO FEED J1:12 J203:12 12 12 6 ^U_LM13600 C104 5 0.1-50V-10% K 3 800.010_^C_1206 R1R^CLIP_B -IN_B +IN_B + 3 8 7 5 2 1 - 4 17 J1:17 GND 24 J1:24 25 J1:25 26 J1:26 J203:17 17 J1:18 J203:18 F_BYP_B 18 18 J1:19 J203:19 19 19 J203:20 20 J203:21 21 J203:22 22 J1:23 J203:23 23 23 J203:24 24 J203:25 25 J203:26 26 F_SND_B 20 J1:20 F_30_B 21 J1:21 22 J1:22 26-LINE RIBBON CABLE CONNECTS BREAKAWAY INPUT PCB TO MAIN PCB ROUTE THIS GROUND ROUTE THIS GROUND TO "P" GND AT TO "A" GND AT HEAT SINK COMMON JI-2 INPUT CABLE BETWEEN CH A AND CH B 13 J203:13 J203:16 16 J203:14 14 J203:15 15 BR_RET BR_BAL BR_CUT R20 6.8-1W P1 A1 NCNC A1 NC3 + 2 - R105 10.0K ^R_0805 NE5532 U101:1 C106 1 CHANNEL 1 GAIN C100 SEE SH 3 0.1-50V 10% R113 R106 10.0K ^R_0805 270 ^R_0805 SEE SH 3 +14V R111 270 ^R_0805 R104 150K ^R_1206-14V A1 R107 ^R_0805 39K C105 100-25V ^C_1206 W R112 A1 C108 C109 .15-5% .15-5% P1 R117 20.0K ^R_0805 A1 CWCCW R108 7.50K ^R_0805 R110 100 ^R_0805 R126 1K ^R_0805 Q100 3906 R109 100 ^R_0805 A1 +VCC_A 10 J104:10 R118 150K ^R_1206 R114 ^R_0805 10 J204:10 C107 .22-5% J204:12 12 13 J104:12 12 J104:13 13 +15V_A J204:13 TH_A SEE SH 3 A1 SP_A D103 1N4148 ^R_1206 D100 15V-1W P1 LD100 RED R115 820 -15V_A 6 09 K 210115_R1R^R120 270 ^R_0805 R123 11.3K-1%-1/2W C114 0.001u,100V5% ^C_1206 C110 56p ^C_0805 C111 56p-200V-COG ^C_1206 R122 13.3K-1%-1/2W C112 220-25V D101 15V-1W P1 6 - D102 7 5 + 1N4148 U101:2 NE5532 R121 20.0K ^R_0805 C113 220-25V CHANNEL-1 R116 ^R_1206 4 J204:4 CLIP CH 1 P1 4 J104:4 R125 47K ^R_1206 84 Q101 3904D104 1N4148 R130 820 ^R_1206 DD107 8 017 J104:77 J204:7 R139 R135 R128 10K 3.0K-5W ^R_0805FP P1 R129 1.5K ^R_0805 YELLOW R136 22-1W 5 J104:5 Q102 5 J204:5 3904 LD101 SIG CH 1 R127 ^R_0805 6 J204:6 6 J104:6 D105 1N4148 D106 1N4148 D114 1N4148 Q104 2SC5200 B 4 3 2 SIZE D FSCM NO. DWG NO. REV SCALE CAD FILE NO. SHEET W R131 100 C116 .022 NTC D110 5.6V-.25W R134 BIAS 50 1N4148 D111 1N4934 D109 CWCCW R133 3.0K-5W +VCC_A JP14 J103 + WP-001451-00 RMX 1450 C122 3300-100V W 2.2K R140 2.2K R147 6.8-1W C121 Q106 MJE15033 3300-100V D115 1N4148 Q108 2SC5200 Q110 Q112 2SC5200 2SC5200 R137 22-1W FP -78V QTY ITEM NO. PART NO. DESCRIPTION PARTS LIST RMX 1450 VENDOR UNLESS OTHERWISE SPECIFIED CONTRACT NO. DIMENSIONS ARE IN INCHES. AUDIO PRODUCTS, INC. DIMENSIONS PER ANSI Y14.5-1982 TOLERANCES ARE: COSTA MESA, CALIFORNIA DECIMALS DECIMALS ANGLES.XX +- .XXX +- O APPROVALS DATE SCHEMATIC DIAGRAM DEBURR EDGES .XXX R MAX DRAWN PAT QUILTER MATERIAL CHECKED FINISH ISSUED NEXT ASSY USED ON CAD SEED FILE NO. 4 APPLICATION DO NOT SCALE DRAWING Thu Sep 07, 2000 RMX1450-4.sch 1 OF 3 D113 1N4148 CWCCW 1N4148 D112 Q103 2SA1943 CWCCW W R124 47 ^R_0805 C115 0.0022u,10% ^C_1206 NEG CURRENT LIMIT POS CURRENT LIMIT C117 .0033 C118 .0033 R132 820 ^R_1206 Q109 2SA1943 W W W W 2 8 2 6 33334455----111122222222RRRR....0000Q107 Q111 2SA1943 2SA1943 D116 1N4148 Q105 MJE15032 R146 6.8-1W C119 P1 .022 C120 3300-100V R157 1K-5W R158 1K-5W +78V P1 REV 1 PROTOTYPE RELEASE 2 CLEAN UP BY PHQ 3 4 CLEAN UP BY AA D117 1N4004 C124 .068-5% 250V 5-WAY BINDING R161 C123 12-5W POST CH 1 BR-NEG 3300-100V J103 - P1 P1 D118 W W W W 3 9 3 9 33334455----111122221N4004 2222RRRR....0000-VCC_A 6 02 2K 213_R3R^BR_BAL SP_B 2-25-00 SH-001451-00 PLOT DATE: NONE REVISION DESCRIPTION 3-01-00 3-02-00 3-10-00CHANNEL 1 L100 E100 BR-POS 2uH SPEAKER CONNECTORS ON BREAK-AWAY PCB. CONTINUED, SHEET 2 R160 5.6-2W WIRES TO BREAK-AWAY SPEAKER OUTPUT PCB SPEAKER OUTPUT PCB 1SH-001451-00 R24 3.3K ^R_0805 4 P:GPE PRODUCTS\PRMX-SERIESQSC145 0 R162 12-5W P1 11 J104:11 11 J204:11 SP_A 2+ 1+ 2- 1- J100 SPEAKON E101 JP13 APPROVED / DATE EFF. DATE CHK R23 33K ^R_1206 PLOT DATE: 1 Thu Sep 07, 2000 DWGNO. THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION WHICH IS THE PROPERTY 8 7 6 5 4 3 2 1 OF QSC AUDIO PRODUCTS, THAT MAY NOT BE DISCLOSED, REPRODUCED OR USED WITHOUT EXPRESS WRITTEN CONSENT FROM QSC AUDIO PRODUCTS. D D C201 180p-5% ^C_0805 R205 10.0K A1 ^R_0805 NE5532 C206: +IN_B R200 R202 U201:1 + 10 μF 50V NP (up to April 2002) C206 47 μF 16V NP (effective May 2002) 10.0K 1K 3 SEE SH 1 ^R_0805 ^R_0805 - 1 W2 CR201 R206 R212 W R213 -IN_B 10.0K 10.0K 270 ^R_0805 W C^R_0805 ^R_0805 CA1 R216: C203 R212: 10K LINEAR (up to Apr 2002) 499K (up to Apr 2002) 560K (effective May 2002) CSEE SH 1 180p-5% 2.5K LINEAR (effective May 2002) ^C_0805 RIGHT ANGLE POT C207 D207: 5.6V 0.25W (up to Feb 2002) 4.7V 0.25W (Mar 2002–May 2003) 5.1V 0.25W (effective June 2003) CF_30_B D208: F_SND_B .22-5% 1N4934 (up to Feb 2002) 1N4004 (effective Mar 2002) F_BYP_B C210 56p C208 C209 ^C_0805 8SEE SH 3 6 - +14V .15-5% .15-5% 7 5 08 K 85 U201:2 00+ 0254 ._5 NE5532 5 R7R00R214: 4 1 K ^881200.04.7K (up to Apr 2002) 220__RR21.2K (effective May 2002) RRC216 ^^.022 A1 U10:2 LD200 LM13600M RED + 14 10 12 15 CLIP CH 2 D210: 5.6V 0.25W (up to Feb 2002) D210 6 1- 13 4.7V 0.25W (Mar 2002–May 2003) 5.1V 0.25W (effective June 2003) 9 +VCC_B 5 07 R127: 8202100 Ω (up to Feb 2002) _RR75 (effective Mar 2002) ^Ω P1 A1 R210 270 6 V 0^R_0805 4 5 5K 220001-225_0R1C0R1^-14V R220: 270 (up to Apr 2002) 230 (May–July 2002) SW-GND FOR CLIP LIM H SVERA NOTES: UNLESS OTHERWISE SPECIFIED 1 -15V_B C211 56p-200V-COG ^C_1206 A5 7 008K 209R_3R^5 05 80089 1 _0 0 010R00_22^116 RRR^5 08 K 02K 3 10810025.0_2R10_RR1R6 ^^05 0 21122_8RR^B Q200 3906 -VCC_B SEE SH 1 SEE SH 3 ΩCLIP_B Ω 232 Ω (effective August 2002) R220 A1 ^R_0805 SEE SH 1 BR_RET BR MONO RETURN -- CAUTION, SENSITIVE NODE Gray shading indicates signal path 7.7 RMX1450 Schematic Diagram 2 of 3 Channel 2 8 7 6 5 RMX Series Technical Service Manual (2RU models) 39 TD-000098-00 rev. C R217 20.0K ^R_0805 R219 150K ^R_1206 R222 13.3K-1%-1/2W +15V_B R216 ^R_1206 D200 15V-1WC213 220-25V C212 220-25V 5 P1 04 827 024_RR^D207 D201 15V-1W CHANNEL-2 C214 0.001u,100V5% ^C_1206 C215 0.0022u,10% ^C_1206 P1 R229 Q201 R228 R226 3904 10K 1.5K 2 147K 28 ^R_0805 ^R_0805 4D14^R_1206 N1D204 Q202 1N4148 3904 D205 D202 1N4148 1N4148 D203 D206 1N4148 1N4148 6 02 20 31228_RR^R233 3.0K-5W P1 1N4934 D209D208 W R231 100 BIAS 1N4148 D211 CWCCW R230 820 ^R_1206 R235 3.0K-5W FP W W 2 8 3344--222222RR..00R236 22-1W LD201 YELLOW NEG CURRENT LIMIT Q211 2SA1943 SPEAKER OUTPUT BR-POS SIG CH 2 CHANNEL R239 W WIRES TO 2 SPEAKER 2.2K OUTPUT PCB C219 L200 P1 R240 2.2K POS CURRENT LIMIT W W 3 9 3344--222222FP RR..00.022 R258 1.0K-5W 2uH C224 .068-5% R234 C218 250V 50 .0033 NTC R261 C223 12-5W MJE15033 D215 C221 Q206 3300-100V 3300-100V 1N4148 Q210 2SC5200 R237 22-1W D218 1N4004 Q204 Q208 P12SC5200 2SC5200 -78V -VCC_B B 4 3 2 SIZE D FSCM NO. DWG NO. REV SCALE CAD FILE NO. SHEET D214 1N4148 Q203 2SA1943 R247 6.8-1W CWCCW W Q205 C217 .0033 MJE15032 Q207 2SA1943 D216 1N4148 D213 1N4148 R246 6.8-1W Q209 2SA1943 CWCCW Q212 2SC5200 SP_B +78V +VCC_B W W 2 6 3355--2222D217 22RR..001N4004P1 R260 5.6-2W R257 1.0K-5W C220 3300-100V C222 3300-100V R253 0.22-3W R259 0.22-3W JP15 E200 BR-NEG E201 JP16 P1 J203 + J203 - TO CH 1 SHEET 1 5-WAY BINDING R262 12-5W N O+ + 0 21K0A2JE- - 21PSPOST CH 2 SPEAKER CONNECTORS ON BREAKAWAY PCB FROM SHEET ONE NONE OF 2 SH-001451-00 4 4 Thu Sep 07, 2000 RMX1450-4.sch 2 3 0 0-154100-HSPLOT DATE: DWGNO. 7.8 RMX1450 Schematic Diagram 3 of 3 Power Supply 40 QSC Audio Products, LLC Gray shading indicates signal path 7.9 RMX1850HD Schematic Diagram 1 of 3 Channel 1 RMX Series Technical Service Manual (2RU models) 41 TD-000098-00 rev. C Gray shading indicates signal path 7.10 RMX1850HD Schematic Diagram 2 of 3 Channel 2 42 QSC Audio Products, LLC 7.11 RMX1850HD Schematic Diagram 3 of 3 Power Supply RMX Series Technical Service Manual (2RU models) 43 TD-000098-00 rev. C 1 8 7 6 5 4 3 2 THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION WHICH IS THE PROPERTY OF QSC AUDIO PRODUCTS, THAT MAY NOT BE DISCLOSED, REPRODUCED OR USED WITHOUT EXPRESS WRITTEN CONSENT FROM QSC AUDIO PRODUCTS. D R176: 12K (up to Oct 2003) D 47K (effective Nov 2003) 26-LINE RIBBON CABLE CONNECTS BREAKAWAY INPUT PCB TO MAIN PCB 2 J101 31J1:1 GND 1 RING R J102 TIP TJ1:2 R100 +IN A 2 S10.0K J5:5 ^R_0805 R102 CH1_+IN 5 J5:4J1:3 CH1_-IN 4 -IN A 3 1K R101 P I^R_0805 RT10.0K 6 S% 06 5R2% 3 0^R_0805 E15pI2C1 _01pR7CC_04R^7CJ1:4 AJ5:3 4^B3 4 NGND OICHASSIS_GND TISR112: R116: OPJ5:210K LINEAR (up to Nov 2001) 820K (up to Apr 2002) D107: E2 2.5K LINEAR (effective Dec 2001) 1 M (effective May 2002) 5.6V 0.25W (up to Feb 2002) VICH2_-IN 4.7V 0.25W (effective Mar 2002) FRIGHT ANGLE POT J5:1 CH2_+IN 1 CRING R CJ202 TIP TS2 J1:5 J201 3CLIP-LIM A 5 1J1:6 GND 6 J1:7 FILT-CAP A 7 SW1:1 J1:8 P1 CLIP LIM A (1) 1 11 FILT-SEND A 8 J1:9 SW1:2 FILT-BYP A 9 FILTER 30 HZ (2) 2 12 10 J1:10 R114: 4.7K (up to Apr 2002) J1:11 1.2K (effective May 2002) 11 FILTER BYPASS A (3) J1:12 GND 12 PARALLEL INPUTS (4, 5) GND U10:1 SW1:3 LM13600M 11BR MONO FEED 3 13 7 5 2 D110: 5.6V 0.25W (up to Feb 2002) 1 SW1:4 - 4 4.7V 0.25W (effective Mar 2002) 6 4 14 J1:13 J2:13 13 13 BR_RET R127: SW1:5 C132 100 Ω(up to Feb 2002) 5 15 75 Ω (effective Mar 2002) 5 47P-50V 0K 3 J1:14 8J2:14 00.^C_1206 010_BR M SEND (HI-SIG A) GND 14 14 A1 R1R^SW1:6 6 16 BR MONO FEED J1:15 15 J2:16 BR_CUT 16 R120: J1:17 J2:17 17 17 J2:15 BR_BAL 15 SW1:7 J1:16 16 390 (up to Apr 2002) 348 (effective May 2002) J1:18 J2:18 18 18 FILTER BYPASS B (8) FILTER 30 HZ (9) GND CLIP LIM B (10) H SVERA NOTES: UNLESS OTHERWISE SPECIFIED 1 7 17 BRIDGE C130 R197 MONO (6, 7) 100p-50V 100 ^C_1206 ^R_0805 B ΩΩ A1 FILT BYP B SW1:8 FILT SEND B (POT) AF_BYP_B -14V 19 J1:19 F_SND_B FILT CAP B 20 J2:19 8 18 19 J1:20 J2:20 F_30_B SW1:9 20 9 19 J1:21 J2:21 21 21 10 SW1:10 20 CLIP LIM B 22 J1:22 J2:22 22 CLIP_B J1:23 J2:23 GND 23 23 A1 -IN B 24 J1:24 J2:24 24 -IN_B +IN B 25 J1:25 J2:25 +IN_B 25 J1:26 J2:26 GND 26 26 Gray shading indicates signal path 8 7 6 5 44 QSC Audio Products, LLC C2 470p5% ^C_1206 C4 470p5% ^C_1206 8 J2:8 9 J2:9 10 J2:10 11 J2:11 12 J2:12 C101 180p-5% J2:1 ^C_0805 1 J2:2 2 J2:3 3 J2:4 4 A1 FILT-CAP A FILT-BYP A J2:5 5 SW TO GND FOR CLIP LIM J2:6 6 J2:7 7 FILT-SEND A CHANNEL-1 C102 .1-50V-10% ^C_12063 + 8 C103 180p-5% ^C_0805 3 + 2 - R20 3.3-1W R_RES1W R105 10.0K ^R_0805 C111 27p-200V-COG R106 ^C_1206 10.0K ^R_0805 6 06 2111_RR^5 086 0 097_12RR^+14V A1 NE5532 U101:1 C106 47-10NP R104 150K ^R_1206 1 C131 .001-5% R114 ^R_0805 R107 ^R_0805 39K ROUTE THIS GROUND TO "A" GND AT JI-2 INPUT CABLE CHANNEL 1 GAIN R111 820 ^R_0805 R138 4.7K ^R_0805 R117 24K ^R_0805 R115 820 ^R_1206 C104 .1-50V-10% ^C_1206 R109 100 ^R_0805 W R112 see below 7.12 RMX2450 Schematic Diagram 1 of 4 Channel 1 A1 A1 CWCCW C172 .0033 R177 12K-1W A1 C109 .15-5% R190 2.00K ^R_0805 A1 P1 Q101 3904 ^Q_BJTN_SOT-23 R166 R125 47K 464K ^R_1206 ^R_1206 D104 1N4148 R113 +15V_A ^D_SOT-23 274 ^R_0805 C107 .22-5% C110 27p C108 ^C_0805 D102 .15-5%1N4148 ^D_SOT-23 R108 7.50K ^R_0805 R110 100 ^R_0805 Q100 3906 ^Q_BJTP_SOT-23 A1 ROUTE THIS GROUND TO "P" GND AT HEAT SINK COMMON BETWEEN CH A AND CH B A1 C125 R120 V 5 520-^R_0805 1100-16NP 0C01R122 23.2K-1%-1/2W R123 23.2K-1%-1/2WR126 R194 12K-1W 1K ^R_0805 R167 464K ^R_1206 R195 2.00K ^R_0805 C179 .0033 SPEAKER BUS -- BEFORE FUSE D101 15V-1W 6 - 7 5 + U101:2 NE5532 CLIP CH 1 -15V_A C114 0.0015u,250V ^C_1206 R124 75 ^R_0805 84 CV 52 21-1022P1 D105 NEG CURRENT LIMIT 1N4148 ^D_SOT-23 POS D103 CURRENT LIMIT D100 1N4148 ^D_SOT-23 V 15V-1W 53 LD100 21-10C2RED 2P1 SPEAKER BUS -- AFTER FUSE R173 150K ^R_1206 R178 150K ^R_1206 D106 1N4148 ^D_SOT-23 R132 820 ^R_1206 R121 24K ^R_0805 R127 ^R_0805 R172 470K ^R_0805 D171 R174 4.7K ^R_0805 R179 4.7K ^R_0805 0 V 791.3D1N4148 ^D_SOT-23 R185 470K R186 R187 ^R_0805 D177 150K 4.7K 1N4148 ^R_1206 ^R_0805 ^D_SOT-23 23R191 4 V- 2.2K ^R_0805 % 6 U171 008 12-71V1_0^U_LM311 C5C-^1.R193 4.7K ^R_0805 1 GND V+ 8 7 BAL/STR 6 BAL 5 R192 ^LM311-SMT 150K ^R_1206 R128 10K ^R_0805 Q102 3904 ^Q_BJTN_SOT-23 SIG CH 1 B 4 3 2 SIZE FSCM NO. DWG NO. SCALE CAD FILE NO. SHEET REV D R118 8.2K-5W R119 8.2K-5W R136 22-1W P1 Q103 2SA1943 POS STEP DRIVER C170 47pF-50V-5% ^Q_BJTN_SOT-23 ^C_0805 Q170 R170 RFZ44 Q171 47 3904 ^R_0805 3 28 -U170 3 4T71O14SDN^U_LM311 _1D^^Q_BJTP_SOT-23 100-25V TO -VMED .36W at full clip 1 GND V+ 8 27 3BAL/STR 6 Q172 4 V- BAL 5 3906 ^LM311-SMT C173 R130 820 ^R_1206 D107 D108 1N4934 D109 1N4934 R129 1.5K ^R_0805 C181 0.01 LD101 YELLOW BIAS NTC R133 8 3 241 -11T14ODNS1R137 _D22-1W ^8.2K-5W FP R135 8.2K-5W -110_A R183 C176 47K 47pF-50V-5% 5 0^R_08054 K 8^C_0805 80019._R5R^D174 10V-1N4740A R140 W CW C1R131 W S2.2K E100 W R147 RR134 _C116 3.3-1W R.022 50 3 W2C8 -4T4 11O41SND_1D^Q106MJE15033 D115 1N4148 ^D_SOT-23 Q104 Q108 2SC5200 2SC5200 Q110 2SC5200 CWCCW D110 +110_A C120 12000-63V R180 5.1K-5W +55_A +110_A D175 MUR1520 DC FAULT PROTECTION 8 3 2 24-111T4DONS1_D^2 TM4 3 2121G CQA1MTMR164 P N9 52100-1/4W 21-C22P1 R160 5.6-2W L100 BR-POS 2uH NEG STEP DRIVER C174 0.1-250V R165 D119 R163 15K-1W 2N5064 D120 10-1/4W 2N5064 C121 12000-63V SPEAKER CONNECTORS ON BREAK-AWAY PCB. CONTINUED, SHEET 2 R139 W 2.2K SEE SH 3 CHANNEL 1 CT_A SPEAKER OUTPUT PCB F100 E100 JP14 25A-125V J103 + C115 0.0022u,10% ^C_1206 D113 1N4148 ^D_SOT-23 R171 5.90K ^R_0805 R175 3.01K ^R_0805 FP CWCCW D117 1N4004 D116 1N4148 ^D_SOT-23 W R146 1SE3.3-1W R_RW W W 2 8 2 333544---111222222RRR...000Q107 2SA1943 P1 Q105 MJE15032 R198 C119 2.2K-5W P1 .022 Q173 3904 ^Q_BJTN_SOT-23 Q175 3906 ^Q_BJTP_SOT-23 Q109 2SA1943 C177 47pF-50V-5% ^C_0805 C180 100-25V D178 12V-1W-1N4742A R189 47 ^R_0805 Q111 2SA1943 C171 10-35V R176 ^R_0805 R157 2.2K-5W R158 2.2K-5W P1 R159 0.22-3W Q112 2SC5200 D118 1N4004 C175 R182 W W W 3 9 3 3331.5-2W 544---.1-250V 111222222RRR...000D176 MUR1520 6 6 00B A 22K K 33118822__66RRRR^^W 8 58-1K1R.5C123 12000-63V Q174 RFZ44 R156 0.22-3W R181 1.5-2W C122 12000-63V R24 3.01K ^R_0805 -110_A NONE BR_BAL 0 0-55_A -154200-HSSH-002451-00 P:GPE PRODUCTS\PRMX-SERIESQSC245 PLOT DATE: 0 C124 0.068-250V P1 5-WAY BINDING R161 12-5W R162 12-5W POST CH 1 E101 JP13 J103 - WIRES TO BREAK-AWAY SPEAKER OUTPUT PCBC126 0.068-250V R154 R155 12-5W 12-5W R22B 68K ^R_1206 R22A 68K ^R_1206 SP_B 4 2 2 4OF Thu Sep 07, 2000 2+ 1+ 2- 1- J100 SPEAKON BR-NEGP1 4 DWGNO. THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION WHICH IS THE PROPERTY OF QSC AUDIO PRODUCTS, THAT MAY NOT BE DISCLOSED, REPRODUCED OR USED WITHOUT EXPRESS WRITTEN CONSENT FROM QSC AUDIO PRODUCTS. 8 7 6 5 4 3 2 1 D D R276: 12K (up to Oct 2003) 47K (effective Nov 2003) R205 10.0K ^R_0805 +IN_B R200 R202 10.0K 1K SEE SH 1 ^R_0805 ^R_0805 -IN_B R201 10.0K C^R_0805 R216: 820K (up to Apr 2002) 1 M (effective May 2002) D207: 5.6V 0.25W (up to Feb 2002) 4.7V 0.25W (effective Mar 2002) CR212: 10K LINEAR (up to Nov 2001) 2.5K LINEAR (effective Dec 2001) SEE SH 1 RIGHT ANGLE POT F_30_B F_BYP_B SW-30 HZ F_BYP_B SW-FILT BYPASS +14V-A R214: U10:2 LM13600M 4.7K (up to Apr 2002) 1.2K (effective May 2002) D210: 10 12 15 5.6V 0.25W (up to Feb 2002) 4.7V 0.25W (effective Mar 2002) 6 1- 13 R227: 100 Ω(up to Feb 2002) 75 Ω (effective Mar 2002) B V 55 20-20C01R220: -14V 390 Ω (up to Apr 2002) 348 Ω (effective May 2002) SEE SH 1 CLIP_B SW-GND FOR CLIP LIM SEE SH 1 BR_RET BR MONO RETURN -- CAUTION, SENSITIVE NODE H SVERGray shading indicates Asignal path A NOTES: UNLESS OTHERWISE SPECIFIED 8 7 6 5 1 RMX Series Technical Service Manual (2RU models) 45 TD-000098-00 rev. C R208 7.50K ^R_0805 10.0K ^R_0805 R203 C201 180p-5% ^C_0805 R206 R213 10.0K ^R_0805 274 ^R_0805 14 + 9 + 2 3 - A1 NE5532 U201:1 1 C204 180p-5% ^C_0805 4-5 MA CHARGE CURRENT 1 MA DISCHARGE. R211 820K ^R_0805 R209 100 ^R_0805 10 J204:10 10 J104:10 C206 47-10NP CWCCW W R212 A1 C207 .22-5% CHANNEL-2 A1 A1 R296 270 ^R_0805 R204 150K ^R_1206 Q200 3906 ^Q_BJTP_SOT-23 R210 100 ^R_0805 R214 ^R_0805 A1 C1 1 3020C208 C209 .6 - .15-5% .15-5% 7 5 + U201:2NE5532 D200 15V-1W LD200 RED C213 220-25V 4 J104:4 4 J204:4 C225 R220 100-16NP ^R_0805 R222 23.21K-1%-1/2W R207 ^R_0805 39K R215 820 ^R_1206 R238 4.7K A1 ^R_0805 234 V- U271 1 GND V+ 8 BAL 5 7 BAL/STR 6 ^LM311-SMT C214 ^C_1206 0.0015u,250V5% R216 ^R_1206 U270 R290 1 GND V+ 8 27 2.00K 3BAL/STR 6 ^R_0805 4 V- BAL 5 R278 R279 D274 ^LM311-SMT 150K 4.7K 10V-1N4740A ^R_1206 ^R_0805 SPEAKER BUS -- BEFORE FUSE Q201 ^Q_BJTN_SOT-23 3904 R228 R229 D212 R218 +110_B 10K 1.5K 1N4148 8.2K-5W ^R_0805 ^R_0805 ^D_SOT-23 R219 8.2K-5W C211 27p-200V-COG ^C_1206 SIG CH 2 +15V_B D204 1N4148 ^D_SOT-23 Q202 3904 3 28 -4T3 11O42SND_1D^^Q_BJTN_SOT-23 FP R221 24K ^R_0805 R217 24K ^R_0805 D0 V 792.3C272 .0033 D201 15V-1W R277 12K-1W J204:5 5 J104:5 5 R266 R225 4.7K 464K W 1 0^R_1206 O2L^R_1206 DLLEY6 J204:6 6 J104:6C212 220-25V P1 R224 75 C210 ^R_0805 27p ^C_0805 -15V_B CLIP CH 2 84 P1 R294 W 1SE12K-1W R286 R_R150K R295 ^R_1206 2.00K ^R_0805 C279 R292 .0033 150K C_MYL2_AI ^R_1206 D202 1N4148 ^D_SOT-23 D203 1N4148 ^D_SOT-23 POS STEP DRIVER R273 150K ^R_1206 7.13 RMX2450 Schematic Diagram 2 of 4 Channel 2 R5 07 826 020_2 20 3R12^2_8RR^P1 R233 8.2K-5W R235 8.2K-5W P1 7 J204:7 7 J104:7 4 8 30924DN1R271 5.90K ^R_0805 R274 4.7K ^R_0805 D205 1N4148 ^D_SOT-23 D206 1N4148 ^D_SOT-23 C281 0.01 R236 22-1WFP D216 1N4148 Q205 MJE15032 ^D_SOT-23 W R231 100 C216 .022R234 BIAS 50 D210 C276 R283 47K 47pF-50V-5% ^R_0805 ^C_0805 R285 470K R287 ^R_0805 4.7K ^R_0805 R293 4.7K ^R_0805 ^D_SOT-23 1N4148 D211 CWCCW D209 1N4934 D207 R272 470K ^R_0805 R230 820 ^R_1206 R237 22-1W NEG STEP DRIVER NTC W R239 2.2K W CCR240 2.2K W WC-110_B C215 0.0022u,10% ^C_1206 D214 1N4148 ^D_SOT-23 R246 3.3-1W R_RES1W R247 3.3-1W R_RES1W D215 1N4148 ^D_SOT-23 R298 2.2K-5W R257 2.2K-5W R258 2.2K-5W NEG CURRENT LIMIT POS CURRENT LIMIT C219 .022 P1 Q206 MJE15033 Q212 2SC5200 FP R275 3.01K ^R_0805 TO -VMED R280 5.1K-5W +55_B D275 MUR1520 R281 1.5-2W C274 .1-250V D217 1N4004 C221 12000-63V CWCCW +110_B Q271 3904 C270 47pF-50V-5% ^Q_BJTN_SOT-23 ^C_0805 Q270 RFZ44 V 1 D271 5732-0C11N4148 ^D_SOT-23 C220 12000-63V Q272 3906 ^Q_BJTP_SOT-23 C273 100-25V DC FAULT W W W W 8 2 2 6 33334455----222222222222RRRR....PROTECTION 00002 TM4 3 2D219 1Q203 Q207 Q209 R263 22G CQ2SA1943 2SA1943 2SA1943 A110-1/4W MTD220 M2N5064 2N5064 R264 100-1/4W P1 Q204 Q208 Q210 2SC5200 2SC5200 2SC5200 B C277 5 04 K 880029._R47pF-50V-5% 5R^^C_0805 D277 Q273 3904 ^Q_BJTN_SOT-23 % 6 008 11N4148 2-71VR289 2_0^D_SOT-23 C5C-^1.R291 Q275 3906 47 ^R_0805 2.2K ^Q_BJTP_SOT-23 ^R_0805 4 3 2 SIZE FSCM NO. DWG NO. REV D SCALE CAD FILE NO. SHEET R259 0.22-3W R243 0.22-3W R249 0.22-3W R253 0.22-3W Q211 2SA1943 P1 R270 47 ^R_0805 R276 ^R_0805 D273 1N4148 ^D_SOT-23 C223 12000-63V Q274 A 247RFZ44 4N1-8 W712-DV21P1 C226 0.068-250V D218 1N4004R282 C275 1.5-2W .1-250V D276 11 J104:11 MUR1520 11 J204:11 R288 5.1K-5WC280 100-25V SEE SH 3 CT_B C222 12000-63V F200 25A-125V P1 SP_B -55_B -110_B R265 15K-1WC229 22-25NP R260 5.6-2W L200 2uH C224 .068-250V R261 12-5W R254 12-5W CHANNEL WIRES TO 2 SPEAKER OUTPUT PCB SPEAKER OUTPUT BR-POS E200 JP15 J203 + TO CH 1 SHEET 1 N O+ + 0 K210A25-WAY EJ- - 21PBINDING SR262 12-5W POST CH 2 E201 JP16 J203 - BR-NEG R255 12-5W SPEAKER CONNECTORS ON BREAKAWAY PCB FROM SHEET ONE NONE PLOT DATE: SH-002451-00 OF 34 RMX2450-4.sch 3 4 Thu Sep 07, 2000 SH-002451-00 4 DWGNO. THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION WHICH IS THE PROPERTY OF QSC AUDIO PRODUCTS, THAT MAY NOT BE DISCLOSED, REPRODUCED OR USED WITHOUT EXPRESS WRITTEN CONSENT FROM QSC AUDIO PRODUCTS. D 8 7 6 5 4 3 2 1 D RECTIFIER BR100-201 CIRCUIT IS DRAWN FOR CHASSIS MTG OF RECTIFIERS. E-POINTS ARE WIRE CONNECTIONS. U-I CORE POWER TRANSFORMER NOTE SPLIT SECONDARY WIRING BR100 400V-25A AC VOLTAGE FROM EACH LEG TO EACH CHANNEL E1 PROGRAMMING TERMINALS ! E2CAC INPUT, HIGH (ALL) R21 1 OHM 30A BRN 120V E31 + - 4 E4 CQUICK E50.22-250V CONNECT TRANSFORMER PRI LEADS PC-MTD TABS BLU C128 2 100V 120V 240V 20V E6BRN BRN BRN J4A BLK 0V GRY GRY - J5A E7E8 BR201 400V-25A BR200 400V-25A 2 BLK BLU BLU J6A COIL ONE E91 CAE10 - - BLK J8A COIL TWO E11 C228 1 + - 4 0.22-250V C227 0.22-250V 3 - - GRY J9A GRY E12 120V J7A WHT RED RED 20V RED 0V BLU BLK - J2A WHT R29 RED WHT WHT J3A 12-5W AC INPUT, LOW (ALL) ! LINE NEUT GND20 VAC TO FAN POWER RECTIFIER 1.1 AMP H SVERA NOTES: UNLESS OTHERWISE SPECIFIED 1 MAINTAIN FULL B ! PRI-SEC CREEPAGE CIRCUIT BREAKER USA: 15A-125V EUROPE: 7.5A-250V ! JSW JP12 IEC AC INLET TO POWER SWITCH 12 JP10 3 AC1 3R1 A7.14 RMX2450 Schematic Diagram 3 of 4 Power Supply 8 7 6 5 46 QSC Audio Products, LLC AC2 AC1 C127 0.22-250V 3 AC2 BR101 400V-25A 2 AC1 1 + 4 - 3 1 + 4 - AC2 AC1 3 AC2 2 1 + 2 CT_A E13 E14 E114 SEE SH 1 1 J21:1 E112 +110_A 1 J157:1 MUTING AND THERMAL PROTECTION. +55_A +55_B D1 R10 D8 1N4004 150K ^R_1206 15V C8PILOT 47-50VLED D14 5 V 15D11N4148 Q1 C7^D_SOT-23 E18 LD1 E15 E113 GRN R27 E16 E115 330K P1 ^R_1206 -55_A R2 33K-2W 6 6 -110_A 00R6 22R3 11__E17 E212 1.0M RR1.0M ^^E214 R5+110_B D4 300V-.2A 4.7-250V 33K-2W 1N4148 ^Q_BJTN_SOT-23 ^D_SOT-23 - E19 E213 E20 E215 -110_B -55_B C10 CT_A 0.047-400V D2 D3 R28 SEE SH 2 1N4148 1N4148 12-5WCT_B ^D_SOT-23 ^D_SOT-23 8 J204:8 ATTACH TO HS-1 9 J204:9 C6 1000-35V 8 J104:8 R4 9 J104:9 28V PRI-SIDE DC FAN SUPPLY R7 60C 100 OHM 60C 100 OHM ATTACH TO HS-2 BR1 200V-1A AC24 D5 1N4148 ^D_SOT-23 D7 1N4148 ^D_SOT-23 D6 1N4148 ^D_SOT-23 TO DC FAN 2 D10 R15 1N4004 R26 464K 220K ^R_1206 ^R_0805 5 MAINTAIN FULL 0K 88 PRI-SEC CREEPAGE00.R_2R^2 PIN HEADER J157:2 J18:1 2 1 + 2 J18:2- J21:2 6U2 6 0K 2 23 02500V HI-POT 4N2911B 7_R4R^4 3 2 SIZE FSCM NO. DWG NO. REV D SCALE CAD FILE NO. SHEET J157:3 3 J21:3 1 54 2 R18 220K ^R_1206 D9 1N4148 ^D_SOT-23 2 J104:2 2 J204:2 Q4 P1 3906 ^Q_BJTP_SOT-23 1 J204:1 P1 Q5 MPSA06 1 J104:1 -15V_A -14V R9 6.81K ^R_1206 R14 6.81K ^R_1206Q3 TIP31C R17 120-2W R13 2.0K ^R_0805 R19 6.8K ^R_1206 +14V D11 1N4004 +15V_A D12 1N4004 D13 1N4004 +15_B -15V_B C11 .1-5OV 12 J104:12 12 J204:12 3 J204:3 13 J204:13 Q9 Q8 3904 3904 ^Q_BJTN_SOT-23 ^Q_BJTN_SOT-23 R25 47 ^R_0805 Q6 3906^Q_BJTP_SOT-23 C9100pF ^C_1206 P1 ^R_0805 3 Q7 R30 3906 ^Q_BJTP_SOT-23 100 13 J104:13 OF SH-002451-00 3 J104:3 +15V_A BR_CUT BR_CUT-A A1 -15V_A 44 4 RMX2450-4.sch 4 4 Thu Sep 07, 2000 0 0-154200-HSNONE PLOT DATE: DWGNO. 7.15 RMX2450 Schematic Diagram 4 of 4 Power Supply Revision RMX Series Technical Service Manual (2RU models) 47 TD-000098-00 rev. C 7.16 RMX Power Transformer Configurations March 2007 and later 48 QSC Audio Products, LLC 8 7 6 5 4 3 2 1 THIS DOCUMENT CONTAINS PROPRIETARY REVISIONS INFORMATION WHICH IS THE PROPERTY OF QSC AUDIO PRODUCTS, THAT MAY NOT REV DESCRIPTION EFF. DATE CHK APPROVED/DATE BE DISCLOSED, REPRODUCED OR USED WITHOUT EXPRESS WRITTEN CONSENT FROM QSC AUDIO PRODUCTS. E100 WHI 1724-340C-0102 OUTPUT PCB JP14 J103 CH 1 SPKR OUTPUT 26 CONDUCTOR RIBBON CABLE E101 GRY JP13 WITH PIN-TO-PIN INTERCONNECTS E200 WHI JP15 J203 11724-330A-0001 MAIN PCB E201 GRY JP16 INPUT PCB CH 1 SPKR COMMON CH 2 SPKR OUTPUT CH 2 SPKR COMMON J203 RED BLK 26 WIRE ASSY WIRING DIAGRAM, 7.17 RMX850 Chassis Wiring Diagram RMX 850 8 7 6 5 4 3 2 1 DCBA J1 126 INPUT PCB 1724-340B-0102 E9E10 E212 E11 E12 J18 12E112 GRN 1J128 23 RED BLK 1Y S2 SAN AF3-PIN CABLE ASSY 123 -VCC_B + _BVCC -VCC_A +VCC_A 1724-340A-0102 PWR PCB J21 TRANSFORMER (1806-2505-0) 120V 230V 100V AC POWER CORD BRN GRN BLU HOT GND NEUT BRN BREAKER CIRCUIT- BRN AC SWITCH POWER AUDIO PRODUCTS, INC. COSTA MESA, CALIFORNIA NOTES: UNLESS OTHERWISE SPECIFIED SCALENONE REVA SHEET 1 OF 1 RMX Series Technical Service Manual (2RU models) 49 TD-000098-00 rev. C VIO BLU • GRN RED •BRN BLU BLK WHT RED GRY E1E2E3E4E5E6E7E8 J3A J6A J3A J7A J7A J9A J9A J9A J7A J8A J5A J4A J4A J4A J8A J2A J2A J2A JP12 JP10 DWG NO. SH-0025000 SH 1 REV A DCBA 8 7 6 5 4 3 2 1 THIS DOCUMENT CONTAINS PROPRIETARY REVISIONS INFORMATION WHICH IS THE PROPERTY OF QSC AUDIO PRODUCTS, THAT MAY NOT REV DESCRIPTION EFF. DATE CHK APPROVED/DATE BE DISCLOSED, REPRODUCED OR USED WITHOUT EXPRESS WRITTEN CONSENT FROM QSC AUDIO PRODUCTS. E100 WHI 1724-340C-0102 OUTPUT PCB JP14 J103 CH 1 SPKR OUTPUT 26 CONDUCTOR RIBBON CABLE E101 GRY JP13 WITH PIN-TO-PIN INTERCONNECTS E200 WHI JP15 J203 11724-330A-0001 MAIN PCB E201 GRY JP16 INPUT PCB CH 1 SPKR COMMON CH 2 SPKR OUTPUT CH 2 SPKR COMMON J203 RED BLK 26 WIRE ASSY WIRING DIAGRAM, 7.18 RMX1450 Chassis Wiring Diagram RMX 1450 8 7 6 5 4 3 2 1 DCBA J1126 INPUT PCB 1724-340B-0102 E9E10 E212 E11 E12 J18 12E112 GRN 1J128 23 RED BLK RED • 1Y S2 SAN AF3-PIN CABLE ASSY 123 -VCC_B + _BVCC -VCC_A +VCC_A 1724-340A-0102 PWR PCB J21 TRANSFORMER 1806-2506-0 120V 230V 100V AC POWER CORD BRN GRN BLU HOT GND NEUT BRN BREAKER CIRCUIT- BRN AC SWITCH POWER AUDIO PRODUCTS, INC. COSTA MESA, CALIFORNIA NOTES: UNLESS OTHERWISE SPECIFIED SCALENONE REVA SHEET 1 OF 1 50 QSC Audio Products, LLC BLU BLU • GRN RED GRN •BRN BLU BLK WHT RED GRY VIO VIO • J7A J7A J9A J9A J9A J7A J8A J5A J4A J4A J4A J8A J2A J2A J2A JP12 JP10 E1E2E3E4E5E6E7E8 J3A J6A J3A DWG NO. SH-0025000 SH 1 REV ADCBA 8 7 6 5 4 3 2 1 THIS DOCUMENT CONTAINS PROPRIETARY REVISIONS INFORMATION WHICH IS THE PROPERTY OF QSC AUDIO PRODUCTS, THAT MAY NOT REV DESCRIPTION EFF. DATE CHK APPROVED/DATE BE DISCLOSED, REPRODUCED OR USED WITHOUT EXPRESS WRITTEN CONSENT FROM QSC AUDIO PRODUCTS. E100 WHI 1724-342A-0102 OUTPUT PCB JP14 J103 CH 1 SPKR OUTPUT APRODUCTION RELEASE PER ECO X MP 26 CONDUCTOR RIBBON CABLE E101 GRY JP13 WITH PIN-TO-PIN INTERCONNECTS E200 WHI JP15 J203 11724-332A-0003 MAIN PCB E201 GRY JP16 INPUT PCB CH 1 SPKR COMMON CH 2 SPKR OUTPUT CH 2 SPKR COMMON J203 26 WIRE ASSY RED 5 RED 4 BLK 3 BLK 2 BLK 1 7.19 RMX1850HD and RMX2450 Chassis Wiring Diagram FG-002450-00 RMX 2450 NEXT ASSY USED ON FIRST APPLICATION 8 7 6 5 4 3 2 1 DCBA J1 126 INPUT PCB 1724-342A-0102 RED 5 RED 4 BLK 3 BLK 2 BLK 1 E112 E114 E113 E115 E116 E117 GRN E217 E212 E214 E213 E215 E216 1J257 23 1Y S2 SAN AF3-PIN CABLE ASSY J18 12123 CT_B -55V_B -110V_B +55V_B +110V_B CT_A -55V_A -110V_A +55V_A +110V_A 1724-342A-0102 PWR PCB TRANSFORMER 1806-2507-0 120V 230V 100V AC POWER CORD BRN GRN BLU HOT GND NEUT PARTS BREAKER CIRCUIT- BRN AC SWITCH POWER BRN LIST UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN INCHES AUDIO PRODUCTS, INC. COSTA MESA, CALIFORNIA APPROVALS DATE DRAWNMILA P. 12-12-00 CHECKED WIRING DIAGRAM, RMX 2450 ISSUED NOTES: UNLESS OTHERWISE SPECIFIED DWG NO. SH-002450-00 REVA DO NOT SCALE DRAWING SCALENONE SHEET 1 OF 1 RMX Series Technical Service Manual (2RU models) 51 TD-000098-00 rev. C ORG GRN(2) GRN GRY BLU(2) BLU BRN RED(2) RED BRN BLU BLK WHT RED GRY YEL VIO(2) VIO J7A J7A J3A J3A J3A J7A J2A J8A J6A J6A J6A J2A J4A J4A J4A JP12 JP10 E1E2E3E7E8E9E4E5E6E10 E11 E12 J5A J9A J5A DWG NO. SH-0025000 SH 1 REV A DCBA 52 QSC Audio Products, LLC “QSC” and the QSC logo are registered trademarks of QSC Audio Products, LLC 1665 MacArthur Blvd. Costa Mesa, CA 92626 Phone +1 (714) 957-7150 (800) 772-2834 (USA only) FAX +1 (714)754-6173 http://www.qscaudio.com


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