25
TROUBLESHOOTING
Is there voltage change on
pin 7,8 of RF101 during
operating by remote control
NO
Working well.
Is there voltage change
same as above on pin
60,61 of IC107?
NO
Check the R124,R125,R193,
R194,R129,R130,R163,R164,
R111,R112,R684,R685
YES
Check the main IIC.
YES
Is there voltage change
same as above on pin
53,98,99 of IC107?
NO
Check the IC107 and Power.
YES
Is there voltage change
same as above on pin 2
of Q108,Q109
NO
Check the Q103,Q104,R169,
R170,R612,R613
YES
When RF sound doesn't come out.
Содержание DHD-4000D
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Страница 66: ...686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA DAEWOO ELECTRONICS Corp ...