11
TROUBLESHOOTING
3. VIDEO circuit
A. EE screen doesn’t appear
EE MODE Picture NG
Is Video signal input at
IC301 pin#48,50,52,54?
Is 5V supplied at
pin#42,55,72,91of IC301?
Is C.S, DATA, CLOCK signal
input pin#67,68,69 of IC301?
Check IF and LINE IN JACK.
Check POWER circuit.
Check IC501
pin #58,71,72.
NO
YES
YES
NO
NO
YES
Is signal output from pin#65 of
IC301?
YES
NO
Check IC301
pin#62 Q-V Sync.
Is signal input into pin#50
of IC501?
YES
NO
Check PCB Pattern.
Is signal output from
pin#52 of IC501?
YES
NO
Is 5V supplied to pin#53, 98,
99 of IC501?
Is signal output at IC301
pin#61?
YES
NO
Check PCB Pattern
Q309, Q310.
Check IC 501
YES
Check POWER circuit.
NO
Is signal input at IC301
pin#56?
Check RF Output.
Check PCB Pattern & LINE
out.
YES
YES
Check IC301.
NO
Содержание DC-F84D1D
Страница 27: ...26 CIRCUIT DIAGRAM 1 POWER CIRCUIT DIAGRAM ...
Страница 28: ...27 CIRCUIT DIAGRAM 2 SERVO SYSCON CIRCUIT DIAGRAM ...
Страница 29: ...28 CIRCUIT DIAGRAM 3 A V CIRCUIT DIAGRAM ...
Страница 30: ...29 4 HiFi SW INPUT CIRCUIT DIAGRAM CIRCUIT DIAGRAM ...
Страница 31: ...30 CIRCUIT DIAGRAM 5 HI FI PIF INPUT CIRCUIT DIAGRAM ...
Страница 37: ...36 PCB CIRCUIT BOARD 1 1 VCR MAIN ...
Страница 38: ...37 PCB CIRCUIT BOARD 1 2 POWER ...
Страница 39: ...38 PCB CIRCUIT BOARD 1 3 DVD MAIN ...
Страница 43: ...42 INSTRUMENT DISASSEMBLY FIG 5 E MAIN PCB DISASSEMBLY Remove 2 screws then remove MAIN PCB Remove 2 screws ...
Страница 44: ...43 INSTRUMENT DISASSEMBLY F MAIN CHASSIS DISASSEMBLY FIG 6 Remove 4 screws then remove MAIN CHASSIS ...
Страница 58: ...57 ELECTRICAL PARTSLIST ...
Страница 59: ...DAEWOO ELECTRONICS CORP 686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA PRINTED DATE MAY 2006 ...