26
TROUBLESHOOTING
Check the power of RF101.
Is there 6 voltage on pin1 of
RF101?
NO
Check the C107,C151,C104
NO
Check the circuit
NO
Check the circuit
NO
Check the circuit
Is there 5 voltage on pin
9,10 of RF101?
NO
Check the C105,C106,L102
YES
Is there 32 voltage on pin
12 of RF101?
NO
Check the Power of IC109
(1,11,33:5V)
YES
Check the RF101.
YES
Содержание DHD-4000D
Страница 30: ...29 BLOCK DIAGRAM VIDEO BLOCK ...
Страница 32: ...31 BLOCK DIAGRAM TUNER BLOCK ...
Страница 40: ...39 SCHEMATIC DIAGRAM ...
Страница 44: ...43 SCHEMATIC DIAGRAM SCHEMATIC DIAGRAM ...
Страница 45: ...44 COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW ...
Страница 49: ......
Страница 66: ...686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA DAEWOO ELECTRONICS Corp ...