LG LAP340 - Electrical Troubleshooting Guide; Power Supply on Smps Board

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1. POWER SUPPLY ON SMPS BOARD
ELECTRICAL TROUBLESHOOTING GUIDE
No 20 VA
Replace Q901.
Q902 normal?
Check or replace Q902.Power line of main PCB is short.
Replace D951/ D952.
Replace IC901.
Q901 normal?
Is the VCC
(11 V ~ 25 V) supplied to
IC901 Pin5?
D951/ D952 normal?
IC901 normal?
NO
NO
NO
NO
YES
YES
YES
YES
NO