Acer H243H H243 LCD Monitor Service Guide - Page 44

Acer Black Screen 4.2 Black screen Acer -LCD-H243H 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 waveform NG Pin 25,26 of U104 OK Check CCFL_Enable Pin 101 of U104 OK Check Pin 7 of CN104 NG U104 fail POWER Fail Check U101, U102 Check C161, R183 Check X101, C156, C157,R191 NG Inverter Fail OK Check Q102, R101, R102 42