Daewoo DQR-1000D, Service Manual

Page: 83 / 106

83
TROUBLESHOOTING
Is there sound output signal on
17,18 pin of RF001?
Check the power of RF001.
NO
Is there sound input signal on 2,43
pin of IC001?
Check the C011, C012.
NO
YES
Is there sound output
signal on 30,31 pin of IC001?
Check the Power of
IC001 (1,11 pin :5V,33 pin:8V,
NO
YES
Is there sound input
signal on 4,11 pin of IC200 and5,14
pin of IC202?
Check the C024,C025,C214,C215,
R012,R013,R210,R211.
NO
YES
Is there sound output
signal on 3,13 pin of IC200?
Is there 5 voltange on
9,10 pin of IC200?
NO
YES
Check the power of IC200
YES
When RF sound doesn’t come out.
Is there sound input signal on 3,5
pin of IC201?
Check the R204,R205
NO
YES
Is there sound output
signal on 1,7 pin of IC201?
Check the power of
IC201?(8 pin : 5V 4pin :-5V)
NO
YES
Confirm sound part.
YES
Check the IIC comm.Of IC001.
NO