LG FH6 - Electrical Troubleshooting Guide

1. SYSTEM POWER SUPPLY ON SMPS BOARD
3-19
ELECTRICAL TROUBLESHOOTING GUIDE
YES
YES
YES
YES
YES
YES
No 5.5 VA
Replace F901 (same fuse).
Replace BD901.
Replace D951, D952.
Power line of MAIN PCB is short.
Replace TH901.
Check or replace.
NO
NO
NO
NO
NO
Is F901 normal?
Is BD901 normal?
Is D951, D952 normal?
Is TH901 normal?
Is the VCC
(14 V ~ 30 V) supplied to IC901
pin2?