LG LHD625 Service Manual page 55

ELECTRICAL TROUBLESHOOTING GUIDE
No 12 V
YES
Is the VCC supplied
to IC104 pin2?
YES
Is there signal
at IC104 pin1?
YES
Check IC104 and replace.
No 5 V
YES
Is the VCC supplied
to IC102 pin3?
YES
Is there signal
at IC102 pin2?
YES
Check IC102 and replace.
NO
Check 14 VA on SMPS board.
NO
Check IC108 pin23 (P_CTRL).
NO
Check 5.5 VA on SMPS board.
NO
Check IC108 pin23 (P_CTRL).
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