16
TROUBLESHOOTING
b. AV1 E-E
No sound in AV1 E-E mode.
NO
Check Input AV1 JACK
Is Audio signal at IC251 pin#6, 7?
Is Audio signal output at IC601 pin
#3, 13?
Check IC501.
Is Audio signal output at IC251
pin#16,17?
Are CLK and DATA obtained at
IC251 pin#42,43?
NO
Is 5V obtained at IC251 pin#40?
Replace IC251.
YES
YES
Is 12V obtained at IC251 pin#34?
NO
YES
Check POWER circuit.
YES
Replace IC601.
YES
Comparing with switching table, are SWA, B CTL SIGNAL
right at IC601 pin #9,10?
NO
Check Output JACK.
YES
YES
NO
Summary of Contents for DC-G84D1D
Page 27: ...26 CIRCUIT DIAGRAM 1 POWER SUPPLY CIRCUIT DIAGRAM...
Page 28: ...27 CIRCUIT DIAGRAM 2 SERVO SYSCON CIRCUIT DIAGRAM...
Page 29: ...28 CIRCUIT DIAGRAM 3 A V CIRCUIT DIAGRAM...
Page 30: ...29 4 HiFi SW INPUT CIRCUIT DIAGRAM CIRCUIT DIAGRAM...
Page 31: ...30 CIRCUIT DIAGRAM 5 Hi Fi PIF INOUT CIRCUIT DIAGRAM...
Page 37: ...36 PCB CIRCUIT BOARD 1 1 VCR MAIN...
Page 38: ...37 PCB CIRCUIT BOARD 1 2 POWER...
Page 39: ...38 PCB CIRCUIT BOARD 1 3 DVD MAIN...
Page 44: ...43 INSTRUMENT DISASSEMBLY F MAIN CHASSIS DISASSEMBLY FIG 6 Remove 4 screws then remove MAIN...
