Acer Black screen, Acer -LCD-H243H, Check power supply, Check reset, Check Crystal

Acer Acer –LCD-H243H

4.2Black screen

Black Screen

Check power supply:			NG
Pin 1, 2 of CN104
OK
Check power supply:			NG
For U104
OK
Check reset:			NG
pin 8 of U104
OK
Check Crystal			NG
waveform
Pin 25,26 of U104
OK
Check CCFL_Enable	OK	Check Pin 7 of CN104		NG
Pin 101 of U104
NG
U104 fail				OK

POWER Fail

Check U101,

U102

Check C161,

R183

Check X101, C156,

C157,R191

Inverter Fail

Check Q102,

R101, R102

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