LG S92T2-C Service Manual page 61

ELECTRICAL TROUBLESHOOTING GUIDE
No 12 V (12V_LOADER)
YES
Is the
VCC supplied to IC156
pin2?
YES
Is there
signal at IC156
pin1?
YES
Check IC156 and replace.
No 9.5 V (A9P5V)
YES
Is the
VCC supplied to IC702
pin2?
YES
Is there
signal at IC702
pin1?
YES
Check IC702 and replace.
NO
Check 14 VA on SMPS board.
NO
Check IC101 pin68 (LDO_CTRL).
NO
Check 14 VA on SMPS board.
NO
Check IC101 pin61 (PWR_CTRL).
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