Acer H243H H243 LCD Monitor Service Guide - Page 42

Acer Unstable power 04 Troubleshooting 4.1 No Power & LED Off Acer -LCD-H243H Check sampling Circuit Check the R pin voltage of IC803 about 2.5V yes NG NG Check F801, R808,R806 NG Check the C pin voltage of IC803 if 3V Change F801, R808,R806 NG Change IC803 Check R832,IC801 Check pin6 of IC802 NG voltage is 14V yes Check FB801,D803,C8 07,C810 if short yes Change FB801,D803,C807, C810 Check pin2 of IC802 voltage above 0.85V yes NG Change R815, R 809, R848, R 849, R850,R851,C809, END 40