LG BP630 Service Manual page 63

ELECTRICAL TROUBLESHOOTING GUIDE
No 1.5 V
YES
Is the
Vcc 12 VA supplied to IC150
pin8?
YES
Is there 3.3 V at
IC150 pin6?
YES
Check IC150 and replace.
No 1.2 V
YES
Is the
Vcc 12 VA supplied to IC150
pin13?
YES
Is there
3.3 V at IC150
pin15?
YES
Check IC150 and replace.
NO
Check 12 VA on SMPS board.
NO
Check PWR_CTL signal from IC501.
NO
Check 12 VA on SMPS board.
NO
Check PWR_CTL signal from IC501.
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