Daewoo DV-T5T2, Руководство по обслуживанию

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10
TROUBLESHOOTING GUIDES
3. VIDEO CIRCUIT
Is video signal input into pin
, , of IC 301?
YES
NO
A.
Is 5V supplied at pin , ,
of IC 301?
YES
NO
Is signal output from pin
of IC 301?
YES
NO
Check the pin , of IC 301
Is 5V suppiled to pin ,
and of IC 601?
Check PCB pattern
Is signal input into pin of
IC 601?
YES
NO
Is signal output from pin of
IC 601?
YES
NO
YES
Check power circuit.
RF out
YES
Line out
Check power
circuit
NO
Check PIF circuit and
LINE IN JACK
EE MODE Picture NG
Check IC601
YES
38
40
21
54
35
50
52
53 98
99
42
56
16 31
Appendix