14
TROUBLESHOOTING
Is 5V obtained at IC301
pin#91?
YES
NO
NO
NO
YES
YES
Is IC301 pin#80 REC(H)
HIGH?
Is VIDEO SW Pulse input at
IC301 pin#70?
Is REC signal input at IC301
pin#94, 95, 89, 90?
EP MODE: 89, 90 Pin
SP MODE: 94,95Pin
Check HEAD and Connector.
Is signal input at IC301 pin#
48, 50, 52, 54?
Check POWER circuit.
Check IC601 pin#22.
Check IC601 pin#18.
No recording.
Check EE MODE.
YES
Is FM signal output at IC301
pin#78?
Replace IC301.
NO
NO
YES
C. No recording
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...
