Power Is Not Operated - LG L320-BN Service Manual

2. POWER IS NOT OPERATED

Power board trouble (DC output is not).
Is the rectifi ed voltage is good?
(Around 7 V ~ 30 V DC)
Is the output of T1101(pin9) right?
Is the voltage of L2518(3.3 V) right?
Is the voltage of L2515(-7 V) right?
Is the voltage of L2516(15 V) right?
Is the voltage of IC2502(5 V) right?
Replace component with trouble.
YES
YES
YES
YES
YES
YES
YES
NO
Check the Fuse(F1101), Line Filter(L1105).
NO
Check the transformer T1101.
NO
NO
NO
NO
3-10
Check the IC2504.
Check the IC2503.
Check the IC2505.
Check the IC2502.