ONKYO CP-1030F (01) PDF Document

In the interest of further product improvements specifications are subject to change without notice.

The play operation sequence is as follows:

1. When IC1a (2) is dropped to “L” level, IC1a (12) is switched over to “H” and IC1b (6) is switched to “H” to turn X203 on; the main gear drive motor is started.

2. When IC2b (4) is dropped to “L” level and IC2b (6) switched to “H” level to turn X204, the record size selector solenoid is activated.

3. When the main gear drive motor is started, the main gear is rotated and SW7 gear switch is turned on.

4. When the main gear switch is turned on, IC1c (11) is switched over to “L” and IC1c (8) is switched to “H” to turn X207 on; the turntable platter drive motor is started.

5. When the main gear is rotated, the tonearm is operated and the tonearm switch is turned on.

6. When the IC5a (1) input of the oscillator circuit is switched to “H” level, its circuit is operated, thereby causing the play indicator to turn on and off.

7. When the rotation of the main gear is finished, the gear switched restores R-F flip-flops to the initial condition and the play indicator is turned on.

The reject operation sequence is as follows:

1. When IC1b (3) is dropped to “L” level and IC1b (6) switched to “H” to turn X203 on, the main gear drive motor is again started up.

2. When IC2c (10) is dropped to “L” level, IC2c (8) is switched to “H” and IC2b (6) to “L” to cut X204 off, thereby inhibiting the record size selector solenoid.

The repeat operation sequence is as follows:

1. When IC4c (10) is dropped to “L” level, IC4c (8) is switched to “H” and IC3b (5) is kept at “H”. When IC2a (1) is switched to “H” level, IC2a (12) is dropped to “L” to turn the repeat indicator L.E.D. on.

2. When the tonearm returns automatically at the end of the record, IC206 (6) generates an H pulse which is then inverted by IC3d to become an L pulse. When this pulse is applied to IC1a (1), resulting in IC1a (12) being switched to “H” level. Thereby when IC3b (6) is switched to “L” level, IC2b (6) switch to “H” to turn X204 on and activate the record size selector solenoid.

3. To release the repeat mode, simply press the REJECT key. In this case, IC2a(13) is dropped to “L” level, IC2a (12) switched to “H” and IC4c(8) to “L”, followed by IC3b(5) being switched to “L” and IC3b(6) to “H”. Then in conjunction with the reject operation described above, the repeat mode is released by reject action. In other words, the repeat mode is maintained only as long as IC3b(5) is kept at “H” level.

When the main gear drive motor is started up for play or reject operations, the main gear is also rotated. SW7 coupled to the main gear restores two R-S flip-flops initial condition.

When an eccentric pin of the lead arm coupled to the tonearm is inserted between D601 and Q601, it serves as a shut-off mechanism which turns the Q601 phototransistor off. The difference in voltage is applied to a comparator via IC206 (3), resulting in the generation of a positive pulse which serves as the comparator output appearing at IC206 (6). This pulse is subjected to rectification and inversion at the CR and IC3a, thereby forming a negative pulse which is applied to IC1a(1). This is then followed by return or repeat operation in the same way as described above.

When the tonearm is raised from the arm rest by hand, the tonearm switch drops IC1c(10) to “L” level, resulting in IC1c(8) being switched to “H” to turn X207 on, thereby starting up the turntable motor by turn on of X207.

1. When the tonearm is returned manually to the arm rest, IC1c(10) is switched instantaneously to “H” level and IC1c(8) to “L”, thereby turning X207 off to bring the turntable motor to a stop.

2. When the main gear starts to rotate during reject or auto-return mode, the SW7 gear switch is set to the “on” position during rotation, and to the “off” position at the end of one revolution. As soon as this single revolution is completed, IC1c(11) is switched to “H” level. The arm switch is at the “off” position (on the arm rest) at this time, and IC1c(10) is at “H” level. At the instant that IC1c(8) is switched to “L”, resulting in X207 being cut off to stop the turntable motor.

When the power switch is turned on, three FFs at the X202 time constant circuit are reset to their prescribed initial state.

This turntable may be set to operate at either 110V-120V or 220V-240V at 50Hz to 60Hz. The voltage selector switch is under the turntable. If a voltage change is necessary, remove the lock plate, switch to the proper voltage, and replace the plate.

CAUTION: DISCONNECT POWER SUPPLY CORD FROM AC OUTLET BEFORE CONVERTING VOLTAGE.

1) Voltage adjustment

*Connect the DC voltmeter between 26 and ground terminals on the motor control p.c.b.

*Adjust VR304 to 12V reading.

2) Time base adjustment

*Connect the dual-image oscilloscope between terminal No. 14 and ground and terminal No. 16 and ground in the motor control p.c.b.

A=12 msec. (33 rpm) (VR305)

A=9.0msec. (45 rpm) (VR306)

Play the 3kHz test record, and adjust VR301 – VR303 so as to reduce wow and flutter to a minimum.

1. Connect a DC voltmeter between pins 9 and 10 of the control circuit board, and adjust VR-201 so that the voltage lies within the 0.2±0.05V range.

2. Set the speed selector to 33 rpm, and reconnect the voltmeter to pins 9 and 11. Adjust VR-202 to obtain a reading of 0.8±0.05V.

3. Then adjust the return position by the large eccentric pin attached to the tonearm base.

The lead-in position is adjusted by means of the small eccentric pin attached to the base of the tonearm.