LG L320-BN, Service Manual

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