22” LCD Color Monitor Topview
39
W / LED, No Backlight
Check C802(+) =16V
NG
OK
Check adapter or main board
Check ON/OFF signal
Check main board
NG
OK
Check IC801 PIN2=5V
NG
OK
Change ON/OFF circuit
Check IC801 PIN13 have triangle wave
NG
OK
Change IC801
Check IC801 PIN1/PIN15 PWM wave
NG
OK
Check IC801
Check Q805, Q806 Drain wave
NG
Check the output of PT801
Check D801/D802/D803/D804
Check connecter & lamp, feedback and protect circuit
OK
NG
Change PT801
OK
Содержание A2281Wd+
Страница 13: ...22 LCD Color Monitor Topview A2281Wd 13 4 3 2 Optical Characteristics Optical Specifications ...
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Страница 15: ...22 LCD Color Monitor Topview A2281Wd 15 4 3 3 Electrical Characteristics TFT LCD Module ...
Страница 16: ...22 LCD Color Monitor Topview A2281Wd 16 Back Light Unit ...
Страница 28: ...22 LCD Color Monitor Topview A2281Wd 28 7 PCB Layout 7 1 Main Board 715G2883 1 6 ...
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Страница 30: ...22 LCD Color Monitor Topview A2281Wd 30 7 2 Power Board 715G2824 2 ...
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Страница 33: ...22 LCD Color Monitor Topview A2281Wd 33 7 3 Key Board 715G2836 1 ...
Страница 41: ...22 LCD Color Monitor Topview A2281Wd 41 9 Monitor Exploded View ...