10
TROUBLESHOOTING
Cassette tape isn’t
inserted.
Is 5V voltage obtained at
Loading parts IC601 pin#82?
Is 13V voltage obtained at
Capstan Motor pin#8?
Check at ON/OFF 12.
Check (D822, Q851).
Connect Capstan and Loading Motor.
Check connector and Capstan Motor.
YES
NO
NO
NO
Is 12V voltage obtained at Each
parts of Loading Motor?
Replace Loading Motor.
Check D851 and POWER circuit.
E. No CASSETTE Loading
YES
YES
F. AUTO STOP in Playback mode
VCR stops automatically
in playback mode.
Check R656,C659 and P603 pin#11
Check S603, S604 REEL Sensor.
Is D.PG/FG pulse at IC601
pin#90 normal ?
Is C. FG pulse at IC601 pin#87
normal ?
Is there REEL Pulse at IC601
pin#79, 80?
Check and replace IC601.
NO
YES
YES
YES
NO
Check C.FG(R660, C660)
and P603 pin#1.
NO
Summary of Contents for DV6T712D
Page 27: ...26 WAVEFORMS 15 9 P201 2 2 AUDIO 2 1 AUDIO Mono...
Page 29: ...28 CIRCUIT DIAGRAM 1 POWER SUPPLY SCHEMATIC DIAGRAM PAL COMBO...
Page 30: ...29 CIRCUIT DIAGRAM 2 AV CIRCUIT DIAGRAM...
Page 31: ...30 3 SERVO SYSCON SCHEMATIC DIAGRAM CIRCUIT DIAGRAM...
Page 32: ...31 4 DIGITAL AUDIO SCHEMATIC DIAGRAM CIRCUIT DIAGRAM...
Page 33: ...32 5 HI FI SW CIRCUIT DIAGRAM CIRCUIT DIAGRAM...
Page 34: ...33 CIRCUIT DIAGRAM 6 IF MPX PDC INPUT OUTPUT SCHEMATIC DIAGRAM...
Page 35: ...34 PCB CIRCUIT BOARD 1 1 VCR MAIN...
Page 36: ...35 PCB CIRCUIT BOARD 1 2 POWER...
Page 37: ...36 PCB CIRCUIT BOARD 1 3 LOGIC...
Page 39: ...38 INSTRUMENT DISASSEMBLY FIG 3 C PANEL FRONT DISASSEMBLY...
Page 40: ...39 INSTRUMENT DISASSEMBLY FIG 4 D LOGIC PCB DISASSEMBLY...
Page 41: ...40 INSTRUMENT DISASSEMBLY FIG 5 E DECK AND MAIN PARTS DISASSEMBLY...
Page 42: ...41 INSTRUMENT DISASSEMBLY FIG 6 F MAIN PCB DISASSEMBLY...
Page 43: ...42 INSTRUMENT DISASSEMBLY FIG 7 G MAIN CHASSIS DISASSEMBLY...