
19" LCD Color Monitor AOC
LM926
39
8.2.2 Power/Inverter Board
(1) No power
Check CN902 pin3/4 = 12V
Check AC line volt 110V or 220V
Check AC input
Check the voltage of C910 (+)
Check bridge rectified circuit and F901 circuit
Check start voltage for the pin8 of IC901
Check R911, C910 and Change IC901
NG
Check the auxiliary voltage is bigger than
10V and smaller than 20V
1) Check IC901
2) Check IC901 over current protect circuit
OK
OK
NG
Check Q900, D916, D915, ZD921, ZD922, IC902 and T901
OK
Check IC901 pin5 PWM wave
OK
Check IC901
NG
NG
NG
OK
NG
Содержание LM926
Страница 12: ...19 LCD Color Monitor AOC LM926 12 4 4 Panel Specification 4 4 1 Introduction 4 4 2 Display Characteristics...
Страница 13: ...19 LCD Color Monitor AOC LM926 13 4 4 3 Optical Characteristics...
Страница 14: ...19 LCD Color Monitor AOC LM926 14 4 4 4 Electrical Characteristics 1 TFT LCD Module 2 Backlight Unit...
Страница 18: ...19 LCD Color Monitor AOC LM926 18 5 2 2 Inverter Power Board...
Страница 27: ...19 LCD Color Monitor AOC LM926 27 7 PCB Layout 7 1 Main Board...
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Страница 30: ...19 LCD Color Monitor AOC LM926 30 7 2 Power Board...
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Страница 33: ...19 LCD Color Monitor AOC LM926 33 7 3 Audio Board...
Страница 34: ...19 LCD Color Monitor AOC LM926 34 7 4 Key Board...
Страница 43: ...19 LCD Color Monitor AOC LM926 43 10 Monitor Exploded View...