18
TROUBLESHOOTING
NO
NO
Insert C223,C224,R419
R209,R297,R299,R240
R420,R251,R279?
Replace noninserted parts.
Signals on Pin 10 &12
of IC204?
Replace IC201
YES
YES
YES
NO
NO
Inserted C260,
C258,C261,C259,C246,
C259,C246,C245,R419,R42
0,R423,R424,R421,R422?
Replace noninserted parts.
Signals on Pin 8&14 of IC204?
Replace IC201
YES
NO
NO
Inserted
C262,C263,C267,C268,
C264,C265,C271,C272,
R425,R426,R433,R434,R427,
R428,R429,R430,R258,R262?
Replace noninserted parts.
Signals on Pin 1&12 of IC210?
YES
NO
NO
Inserted L207?
Replace noninserted parts.
Pin 4 of IC204 is +12 Voltage?
YES
Check Power circuit
YES
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Summary of Contents for DHD-4000D
Page 30: ...29 BLOCK DIAGRAM VIDEO BLOCK ...
Page 32: ...31 BLOCK DIAGRAM TUNER BLOCK ...
Page 40: ...39 SCHEMATIC DIAGRAM ...
Page 44: ...43 SCHEMATIC DIAGRAM SCHEMATIC DIAGRAM ...
Page 45: ...44 COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW ...
Page 49: ......
Page 66: ...686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA DAEWOO ELECTRONICS Corp ...