LG FH2 - Page 28

3-11
ELECTRICAL TROUBLESHOOTING GUIDE
SYSTEM POWER SUPPLY ON SMPS BOARD
YES
YES
YES
YES
YES
YES
Power line of MAIN PCB is short.
AC TO DC abnormal?
Replace BD1.
Replace D3.
Replace IC2.
Replace F2.
Replace Q3.
NO
NO
NO
NO
NO
Is BD1 normal?
Is D3 normal?
Is IC2 normal?
Is F2 normal?
Is Q3 normal?
A