Daewoo DCR-9130 SERIES, Service Manual

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14
TROUBLESHOOTING
NO
Is Video signal input at IC501
pin#50?
Check POWER circuit.
No OSD appears.
Is 5V obtained at IC501 pin# 53,
98, 99?
Is Video signal output at IC501
pin#52?
NO
Replace IC501.
D. No OSD(On Screen Display) appears(VCR)
YES
YES
NO
Check IC 501. Check IC 501.
NO
Check DVD loader
NO
Check DVD video buffer(QD50,QD51,
QD52)and DVD output jack
NO
Check PCB pattern
E. No DVD Video
NO
Is power_on_H signal
output at P601 pin#11
Chage the mode with DVD
No DVD signal
Is Mode DVD mode?
Is power supplied CN2?
(In DVD loader PCB)
NO
Check Power circuit
YES
YES
NO
Check IC 501 pin#32 and PCB
pattern
Is video signal output at
P101 pin #1,3,5,7,8,9?
Is video signal input IC301 pin#54?
Check IC301 and EE mode
YES
YES
YES