PANASONIC DVCPRO 50 AJ-SD93P (01) PDF MANUAL

PANASONIC DVCPRO 50 AJ-SD93P (01) PDF SUMMARY:

Before operating this product, what should I do?

Please read the instructions carefully and save this manual for future use.

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What is an important warning regarding recording copyrighted material?

Unauthorized recording of copyrighted television programs, video tapes and other materials may infringe the right of copyright owners and be contrary to copyright laws.

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What is an important grounding requirement?

This apparatus must be grounded. To ensure safe operation, the three-pin plug must be inserted only into a standard three-pin power outlet which is effectively grounded through normal household wiring. Extension cords used with the equipment must be three-core and be correctly wired to provide connection to the ground. Incorrectly wired extension cords can be extremely hazardous. The fact that the equipment operates satisfactorily does not imply that it is grounded, and the installation is not necessarily safe. For your safety, if in any doubt about the effective grounding of the equipment or power outlet, please consult a qualified electrician.

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What are the warnings about the equipment’s exposure to liquids?

To reduce the risk of fire or shock hazard, do not expose this equipment to rain or moisture. Keep this equipment away from all liquids. Use and store only in locations which are not exposed to the risk of dripping or splashing liquids, and do not place any liquid containers on top of the equipment.

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Where should I not install the deck to maintain adequate ventilation?

Do not install or place this deck in a bookcase, built-in cabinet, or any other confined space in order to maintain adequate ventilation. Ensure that curtains and any other materials do not obstruct the ventilation to prevent risk of electric shock or fire hazard due to overheating.

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What should I use to reduce the risk of fire or shock hazard and annoying interference?

Use the recommended accessories only.

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Who should mount the optional interface board?

Refer mounting of the optional interface board to qualified service personnel.

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Who should change the switch settings inside the deck?

Refer change of switch setting inside the deck to qualified service personnel.

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What is the voltage range for this apparatus?

This apparatus can be operated at a voltage in the range of 100 – 240 V AC. Voltage other than 120 V is not intended for U.S.A. and Canada.

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What should I do if operating at a voltage other than 120 V AC?

Operation at a voltage other than 120 V AC may require the use of a different AC plug. Please contact either a local or foreign Panasonic authorized service center for assistance in selecting an alternate AC plug.

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What happens even when the power switch is in the OFF position?

Even when the Power Switch is in the OFF position, a small current flows through the filter circuit.

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What is an important FCC note?

This equipment has been tested and found to comply with the limits for a class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. To assure continued FCC emission limit compliance, the user must use only shielded interface cables when connecting to external units. Also, any unauthorized changes or modifications to this equipment could void the user’s authority to operate it.

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How do I completely disconnect this apparatus from the AC mains?

To completely disconnect this apparatus from the AC mains, disconnect the power supply cord plug from the AC receptacle. The AC outlet (main socket) shall be installed near the equipment and shall be easily accessible.

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What is the caution regarding removing the cover?

To reduce the risk of electric shock, do not remove the cover (or back). No user-serviceable parts inside. Refer servicing to qualified service personnel.

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What does the lightning flash symbol within an equilateral triangle indicate?

The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

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What does the exclamation point within an equilateral triangle indicate?

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

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What should I do if I need to replace the fuse in the U.K.?

Should the fuse need to be replaced, please ensure that the replacement fuse has a rating of 13 amps and that it is approved by ASTA or BSI to BS1362. Check for the ASTA mark or the BSI mark on the body of the fuse.

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What is the wiring code if a new plug is to be fitted in the U.K.?

The wires in this mains lead are colored in accordance with the following code: Green-and-Yellow: Earth Blue: Neutral Brown: Live The wire which is colored GREEN-AND-YELLOW must be connected to the terminal in the plug which is marked with the letter E or by the Earth symbol or colored GREEN or GREEN-AND-YELLOW. The wire which is colored BLUE must be connected to the terminal in the plug which is marked with the letter N or colored BLACK. The wire which is colored BROWN must be connected to the terminal in the plug which is marked with the letter L or colored RED. If in any doubt please consult a qualified electrician. WARNING: THIS APPLIANCE MUST BE EARTHED.

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What are the two types of AC mains cables this product is equipped with?

This product is equipped with 2 types of AC mains cable. One is for continental Europe, etc. and the other one is only for U.K. Appropriate mains cable must be used in each local area, since the other type of mains cable is not suitable.

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If the plug supplied is not suitable for your socket outlet in the U.K., what should you do?

If the plug supplied is not suitable for your socket outlet, it should be cut off and an appropriate one fitted.

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How do I replace the fuse?

1. Open the fuse compartment with a screwdriver.
2. Replace the fuse.

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What can cause noise in the video and audio signals?

Operation near any appliance which generates strong magnetic fields may give rise to noise in the video and audio signals. If this should be the case, deal with the situation by, for instance, moving the source of the magnetic fields away from the unit before operation.

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What is another grounding requirement?

To ensure safe operation, the three-pin plug must be inserted only into a standard three-pin power point which is effectively earthed through the normal house-hold wiring. Extension cords used with the equipment must be three-core and be correctly wired to provide connection to earth. Wrongly wired extension cords are a major cause of fatalities. The fact that the equipment operates satisfactorily does not imply that the power point is earthed and that the installation is completely safe. For your safety, if in any doubt about the effective earthing of the power point, consult a qualified electrician.

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What is the caution about removing the panel cover?

Do not remove the panel cover by unscrewing. To reduce the risk of electric shock, do not remove the cover. No user serviceable parts inside. Refer servicing to qualified service personnel.

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What are some cautions regarding the deck and its operation?

• Do not expose to liquids
• Mounting of the optional interface board should be done by authorized personnel
• Do not install in a confined space
• A small current flows in the filter circuit even when the power switch is off
• Only use recommended accessories
• To completely disconnect from AC mains, disconnect the power cord plug from the AC receptacle

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What are the included and optional accessories?

Included accessories:

• 3-pin power cord x 1 Optional boards:
• Analog interface board: AJ-YA93P
• SDI interface board: AJ-YA94G

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What type of cassette tapes can be used with this unit?

M cassettes (max. 33 minutes: using the AJ-5P33MP) and L cassettes (max. 92 minutes: using the AJ-5P92LP) can be used with this unit. Tape width is a compact 1/4-inch.

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What is the audio capability of this unit?

The unit can record and play back 4-channel PCM audio. (However, it does not support cue recording or playback.)

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What does the IEEE 1394 digital interface enable?

The IEEE 1394 digital interface, which is provided as a standard feature, enables DVCPRO50 or DVCPRO/DV compressed digital video and audio signals to be input and output with no accompanying deterioration of the picture quality.

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What is the search stick used for?

It is used to control variable-speed playback during searches, etc. In addition, the settings for the on-screen menus and time code generator can also be accomplished easily using the search stick.

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What are the PF buttons used for?

The unit comes with three PF buttons. Any three frequently used setup menus can be selected, and by operating these buttons on the front panel, it is possible to change the menu settings.

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What does recording and playback of UMID information comply with?

Recording and playback of UMID (Unique Material Identifier) information complies with the SMPTE 330M standard. UMID information can be checked on the DIAG menu.

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What does the unit incorporate regarding time code?

The unit incorporates a TCG (time code generator)/TCR (time code reader). In addition to the internal time code, use of the analog interface board (option: AJ-YA93P) enables the external time code input or input signal VITC to be recorded on the unit as the time code.

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What does the SDI interface board enable?

Use of the SDI interface board (option: AJ-YA94G) enables interfacing of the serial digital component signals.

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What does the analog interface board enable?

Use of the analog interface board (option: AJ-YA93P) enables the following signals:

• Composite video input/output
• Component video input/output
• Reference video input (BNC, input x1; loop-through x1)
• Analog audio input/output Input: XLR, 4 channels; output: XLR, 4 channels
• Time code input/output (BNC connectors, 1 each for input, output)
• 9-pin control input (RS-422)

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How are the setup settings performed?

The setup settings, which are conducted prior to operating the unit, are performed while viewing the setup menus on the unit’s display or a TV monitor.

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What happens if UMID information is played back on VTRs that do not support it?

UMID information cannot be played back correctly by VTRs that do not support the recording and playback of UMID information. In addition, even if a VTR that does not support the recording and playback of UMID information is connected to this unit and recording is performed, UMID information will not be recorded correctly.

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What does the EJECT button do?

When this button is pressed, the tape is unloaded and the cassette is ejected automatically a few seconds later. When CTL display has been selected for the counter display, the display is reset. EJECT button operation can be enabled or disabled with setup menu No. 115 (EJECT SW INH).

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What does the METER (FULL/FINE) selector button do?

This button is used to select the scale display for the audio level meter. FULL mode : The standard scale (– ∞ to 0 dB) is selected. FINE mode : The scale in 0.5 dB increments is selected. The position indicates the standard level of –20 dB (–18 dB).

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What does the MONITOR SEL button do?

This button is used to select the audio signals which are to be output to the AUDIO MON L and R connectors. Each time the button is pressed, the audio signals to be output to the AUDIO MON L or R connector are changed in a specific sequence.

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What does the audio level control selector switch do?

UNITY: At this position, the audio signals are recorded or played back at a fixed level regardless of the position of the audio level control knobs. REC : At this position, the audio signals are recorded at the level which has been adjusted by the audio level control knobs. PB : At this position, the audio signals are played back at the level which has been adjusted by the audio level control knobs. Note: It is not possible to set this switch so that both the recording level and playback level can be adjusted. When REC is selected, UNITY (fixed level) is set for the playback level; when PB is selected, UNITY is set.

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What is the function of the INPUT SELECT buttons?

These buttons are used to switch the video and audio input signals. They can also be used to switch the input signals to the internal reference signal selected as the setup menu item No.600 (INT SG) setting. VIDEO: Each time the VIDEO button is pressed, the input video signal selection is switched in the order of [Y PB PR] →[CMPST] → [SDI] → → [SG]. AUDIO: Each time the AUDIO button is pressed, the input audio signal selection is switched in the order of [ANALOG] → [SDI] → → [SG].

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What are some notes regarding the INPUT SELECT buttons?

• It is possible to inhibit the input switch operations (video and audio) of the INPUT SELECT buttons using setup menu item No.112 (V IN SEL INH) and item No.113 (A IN SEL INH).
• The Y PB PR and CMPST settings for the VIDEO button as well as the ANALOG setting for the AUDIO button cannot be selected unless the optional board (AJ-YA93P) has been installed.
• The SDI setting for the VIDEO and AUDIO buttons cannot be selected unless the optional board (AJ-YA94G) has been installed.

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What does the PF button do?

When this button is pressed, buttons to function as the PF1, PF2, and PF3 buttons, respectively. When it is pressed again before another button is pressed, these modes are canceled. When this button is pressed together with the MENU/DIAG button, the DIAG screen is displayed.

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What does the COUNTER/PF1 button do?

Each time this button is pressed, the counter display on the display panel changes by one step in the following sequence: CTL → TC → UB.

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What does the RESET/PF2 button do?

When this button is pressed in the CTL mode, the counter display is reset to [00:00:00:00]. When it is pressed in the TC/UB mode while holding down the TC PRESET button, the generator is reset.

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What does the TC PRESET/PF3 button do?

This button is used to set the TC or UB values.

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What does the MENU/DIAG button do?

When this button is pressed, the setup menus are displayed on the TV monitor (but only when the VIDEO MON connector is used), and the setup menu numbers are displayed on the unit’s display panel. When it is pressed again, the setup menu settings are exited, and the original status is restored. When the button is pressed while holding down the PF button, the VTR information is displayed. When it is pressed again, the original display is restored. The VTR information consists of the WARNING, HOURS METER, UMID, and DIF STATUS 1, 2 information. The SEARCH button is used to switch the displays between these kinds of information. Descriptions of the warnings are displayed on the WARNING screen. The deck’s serial number, power-on time, drum rotation time, tape travel time, number of loading times, number of power on/off times, etc. are displayed on the HOURS METER screen. The UMID (Unique Material Identifier) information is displayed on the UMID INFO screen. The IEEE 1394 digital interface information is displayed on the DIF STATUS 1, 2 screen.

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What are the TCG switch settings?

REGEN: The internal time code generator is synchronized with the time code which the time code reader has read from the tape. The signal that is to be used for regeneration is selected using setup menu No. 503 (TCG REGEN). PRESET: The time code generator can be preset on the operation panel or by remote control. EXT: The external time code which is input from the time code input connector or video signal VITC, or IEEE1394 digital input signal is used. Which of the two is to be set is selected using setup menu No. 505 (EXT TC SEL).

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What does the SUPER switch do?

ON : The time code and other superimposed information are output to the VIDEO MON connector. OFF : No superimposed information is output.

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How is the search stick used for playback?

This is used for shuttle, slow, and other variable-speed playback. It is also used for the menu settings, etc. The stick can be moved upward, downward, to the left or to the right, and it can also be pressed to initiate operations.

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What does the SEARCH button do?

When this button is pressed, the search mode is established.

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What does the PLAY button do?

When this button is pressed, playback starts. When this button and the REC button are pressed together, recording starts.

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What does the REC button do?

When this button is pressed together with the PLAY button, recording starts. When it is pressed during playback, a search, fast forwarding, or rewinding, the E-E mode pictures and audio signals can be monitored while it is held down. When it is pressed in the stop mode, the E-E mode pictures and audio signals can be monitored. (When it is pressed during playback, the servo will be disrupted.) When the STOP button is pressed, the original pictures and sound are restored.

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What does the REW button do?

When this button is pressed, the tape is rewound. The rewinding speed can be selected using setup menu No.102 (FF. REW MAX).

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What does the FF button do?

When this button is pressed, the tape is fast forwarded. The fast forwarding speed can be selected using setup menu No.102 (FF. REW MAX).

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What does the STOP button do?

When this button is pressed, the tape stops traveling, and when TAPE has been selected for the setup menu item No.122 (STOP EE SEL) setting, the still images can be monitored. Even in the stop mode, the drum continues to rotate, and the tape remains in close contact with the drum. When the stop mode continues beyond a specific time period, the unit is automatically set to the standby OFF mode or STEP FWD mode in order to protect the tape. (This is set using setup menu item No.400 to 403.) Immediately after a cassette has been loaded in the unit, the tape is not in close contact with the drum.

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What does the level meter display?

This displays the levels of the PCM audio signals for CH1, CH2, CH3, and CH4. During recording and when the E-E mode is selected, it shows the levels of the input audio signals; during playback, it shows the levels of the output audio signals. The audio level display is switched between the FULL mode and FINE mode using the METER selector button.

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When does the UMID lamp light?

This lamp lights when UMID information is present on the input signal in E-E mode. This lamp lights during tape playback when UMID information has been recorded on the tape.

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When does the WIDE lamp light?

This lamp lights when 16:9 wide-screen information is being recorded on a tape. Recording of wide-screen information can be selected on setup menu No. 645 (WIDE SELECT). This lights lamps during tape playback when wide-screen information has been recorded on the tape.

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When does the REMOTE lamp light?

This lamp lights when the CONTROL switch has been set to the REMOTE position.

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What is displayed in the format displays area?

The recording format and the format of the tape inserted in the unit are displayed here.

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What is displayed in the INPUT SELECT display area?

The characters corresponding to the selected input signals light up in this area. With the exception of analog audio signals, flashing appears in this area if the selected input signals are not available.

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What do the different input signal characters mean?

VIDEO

• Y PB PR : Analog component video signals (option)
• CMPST : Analog composite video signals (option)
• SDI : Serial digital video signals (option)
• 1394 : IEEE1394 digital signals
• SG : Internal reference signal

AUDIO

• ANALOG : Analog audio signals (option)
• SDI : Serial digital audio signals (option)
• 1394 : IEEE1394 digital signals
• SG : Internal reference signal

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When does the cassette tape lamp light?

This lamp lights when a cassette tape is inserted into the VTR. In the standby OFF mode, this lamp is flashing.

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When does the repeat lamp light?

This lights when the repeat play mode has been set.

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What does the counter display show?

The tape counter, time code, etc. are displayed here. The type of value displayed is indicated by CTL, TC or UB.

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When do the REC/REC INH lamps light?

REC: This lights in the recording mode. REC INH: This lights in the recording inhibit mode which is established either when the REC INHIBIT switch has been set to ON or the cassette has been set to the accidental erasure prevention status. Recording is not possible while this lamp is lighted. Whether the lamp is to light or flash when the accidental erasure prevention tab on the cassette tape has been set to the recording inhibit position can be selected using setup menu item No.114 (REC INH LAMP).

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When does the SERVO lamp light?

This lights when both the drum servo and capstan servo are locked.

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What is output from the VIDEO MON connector?

Analog composite video signals are output from this connector. Video signals with information superimposed on them can be output. To set the superimposing to ON or OFF, use the SUPER switch on the front panel.

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What is output from the AUDIO MON (L, R) connectors?

The playback signal from the PCM audio signals (CH1, CH2, CH3, CH4) are output from these connectors.

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What is the purpose of the fan?

This fan is used to cool down the VTR. If, for any reason, the fan stops, “E-10” will appear on the counter display.

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What is connected to the AC IN socket?

Connect one end of the power cord supplied to this socket and the other end to the power outlet.

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What are the positions of the ANALOG VIDEO OUT selector switch (option: AJ-YA93P)?

Set this switch to the Y PB PR side (bottom position) when the ANALOG VIDEO OUT connectors are used to output component video signals; set it to the VIDEO1/VIDEO2 side (top position) when they are used to output composite video signals.

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What is connected to the REF VIDEO IN connector (option: AJ-YA93P)?

This is the input connector for the reference video signal. Input a signal with color burst. Note: Since the video or audio output signal may be disrupted if the reference video signal is not input, it is recommended that this connector be used by the system which supplies the reference video signals. Use a signal where SCH does not fluctuate for the reference video signal.

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What is the function of the REF VIDEO OUT connector (option: AJ-YA93P)?

This is the loop-through output connector of the REF VIDEO IN connector. When a cable is not connected to this connector, the REF VIDEO IN connector is automatically terminated by the 75 Ω resistance. When a cable is connected, the 75 Ω termination is released.

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What is connected to the TIME CODE IN connector (option: AJ-YA93P)?

This connector is used for recording the external time code onto the tape.

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What is the function of the TIME CODE OUT connector (option: AJ-YA93P)?

The playback time code is output from this connector during playback. During recording, the time code generated by the internal time code generator is output.

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What is connected to the Remote control connector (option: AJ-YA93P)?

This enables the unit to be connected to the external remote controller for operation from an external source.

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What are some notes about the remote control connector?

• Set the CONTROL switch to REMOTE.
• The specifications are based on the RS-422A interface, and editing-related functions do not work. In this case, use it as a player.

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What is connected to the ANALOG AUDIO IN connectors (option: AJ-YA93P)?

The analog audio signals are input from these connectors.

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What is connected to the ANALOG AUDIO OUT connectors (option: AJ-YA93P)?

The analog audio signals are output from these connectors.

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What should be used when a mini DV or DVCAM cassette is used?

Use a cassette adapter (AJ-CS455P) when a mini DV or DVCAM cassette is to be used. Note that inserting a mini DV or DVCAM cassette without the use of a cassette adapter will cause malfunctioning. Also note that long-duration mini DV cassettes (80 minutes in the standard mode and 120 minutes in the LP mode) cannot be used.

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What type of tapes should be used if you are using tapes that have been recorded with DVCPRO format?

Use AJ-5P92LP tapes which have been recorded using the DVCPRO (25M) format in a VTR that supports 184 minutes of DVCPRO (25M) format recording and playback.

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When connecting the interface with another device what is important to know?

Connect the interface with another device on a 1:1 basis.

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What should I do if the E-92 warning (1394 INITIAL ERROR) is displayed?

If the E-92 warning (1394 INITIAL ERROR) is displayed, either re-connect the connecting cable or turn the VTR’s power off and back on.

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What happens when the video input selection has been set as the IEEE 1394 digital interface?

• The audio level control knobs on the front panel do not work.
• The settings in the 800 series of setup menu items concerning the vertical blanking period are ignored.
• When playback signals other than regular 1x speed playback signals have been input, no guarantees are made for the pictures and sound which will be recorded or for the EE-type pictures and sound.
• The SDI signals, the analog video output signals and time code output signals become irregular in the E-E mode. Do not use these signals for recording purposes. (The teletext signals and other signals superimposed onto the video output signals also become irregular.)

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What happens to the output during SLOW/STILL playback?

During SLOW/STILL playback, unprocessed video and audio signals are output as the IEEE 1394 digital interface output. When these video and audio signals are monitored using another device, they may differ from the video and audio signals played back by this unit.

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What are some safeguards when connecting the IEEE 1394 cable?

(1) Ensure that the unit and all devices to be connected are grounded (or connected to a common ground). If the equipment cannot be grounded, first turn off the power of all the connected devices, and then disconnect and re-connect the IEEE 1394 cable. (2) When connecting the unit to a device equipped with a 4-pin connector, connect the unit’s connector (6-pin type) first. (3) When making a connection to a PC equipped with a 6-pin connector, connect the 1394 cable so that it mates properly with the 1394 connector. Bear in mind that if the plug is inserted the wrong way round, the unit may be damaged as a result.

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How is the recording format determined for IEEE 1394 digital input data?

The recording format for IEEE 1394 digital input data is determined based on a specific table.

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How do I activate the search stick?

(1) Press the SEARCH button to activate the search stick. When STICK has been selected as the setup menu item No.100 (SEARCH ENA) setting, the search stick will be activated without pressing the SEARCH button. (2) Press the search stick to switch between the SHTL mode and SLOW mode. (3) When the search stick is inclined toward the right, the tape can be played back in the forward direction at a variable speed based on the angle that the stick is inclined. When the stick is inclined toward the left, the tape is played back in the reverse direction. (4) When the search stick is inclined upward, the tape travels in 1-frame increments in the forward direction; when it is inclined downward, it travels in 1-frame increments in the reverse direction. Slow playback is performed if the stick is held at the top or bottom position.

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How do I register the items in the PF buttons?

(1) Press the MENU button, and open the setup menu. (2) Incline the search stick upward or downward to select the PF number item (A04-A06) to be registered. (3) When the search stick is pressed, a list of items which can be set is displayed. (4) Incline the search stick upward or downward to select the item. (5) When the search stick is pressed, the regular menu display screen is restored. When the MENU button is pressed, a confirmation screen appears. Press the PLAY button to finalize.

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How do I perform operations using the PF buttons?

(1) When the PF button is pressed, the registered items are displayed on the monitor screen which is output from the VIDEO MON connector. (2) Press the PF1, PF2 or PF3 button that corresponds to the item whose setting is to be changed. Each time the button is pressed, the setting is updated in sequence. (3) When the PF button is pressed again, the regular display is restored. If no operations are made, the display is also restored automatically after five seconds elapse.

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What happens if the SEARCH button is pressed while the search stick is pressed to one side?

If the SEARCH button is pressed while the search stick is pressed to one side, the current speed is maintained even if the search stick is released. Pressing the STOP, PLAY, or other operation buttons cancels the fixed speed operation.

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How do I set the BEGIN and END points for repeat playback?

(1) Press the MENU button. (2) Select menu item No.161 (CTL(TC)BGN) or No.162 (END), and incline the search stick to the left or right. By operating the search stick, the user can choose whether or not to set the BEGIN and END points. “–:–:–:–” appears on the display when the points are not set. If repeat playback is initiated in this state, the tape start will serve as the BEGIN point, and the tape end will serve as the END point. (3) Press the search stick while the setting is displayed. The changed digits flash on the display. (4) Select TC or CTL using the COUNTER button. (5) Incline the search stick to the left or right, and select the digits to change (flashing). The frame digits cannot be selected. “00” is always displayed for these digits. When the search stick is now inclined upward or downward, the value of the digits changes. The counter display is reset to 00:00:00:00 when the RESET button is pressed. (6) After the settings have been completed, press the search stick.

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What happens if the counter display mode (TC or CTL) is different from the counter display mode in which repeat playback is initiated?

If the counter display mode (TC or CTL), which was established when menu item No.161 (CTL(TC)BGN) and No.162 (END) were set, is different from the counter display mode (TC or CTL) in which repeat playback is to be initiated, the repeat lamp flashes, and the repeat playback operation cannot be performed.

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What are the different repeat play modes?

• OFF: Normal operation
• M-STOP: When the tape is fast forwarded or rewound, it stops near the BEGIN point.
• REPT1: When the tape is played as far as the END point, it is rewound to the BEGIN point where it stops.
• CONT: When the tape is played as far as the END point, it is rewound to the BEGIN point and played, and this sequence of operations is repeated.