20
TROUBLESHOOTING
2.No Audio from S-Audio output
Check JK203
NO
Replace noninserted parts.
Inserted
R627, R628, C273, C274,
C275, C276,C277,C278, L203, L204?
YES
3.No Audio from AV1 output and composite output on DVD Mode
NO
NO
Inserted C200,C202,C203,C201
R220,R221,R229,R230
R231,R232,R238,R239
Replace noninserted parts.
Signals on Pin 3&5 of IC204?
YES
NO
Check DVD Loader
Signals on Pin 1&3 of P505?
YES
Pin 4 of IC505 is +5 Voltage?
NO
NO
Inserted L260?
Replace noninserted parts.
Pin 4 of IC204 is +12 Voltage?
Check Power Circuit
YES
YES
NO
Check CANAL Circuit
The BASE of Q205 and Q206 is +5
Voltage?
YES
Check IC107.
YES
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 ...