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19" LCD Color Monitor AOC 919Swa
34
2. W/LED No Backlight
Check C812 (+) =16V
NG
OK
Change adapter and MB
Check ON/OFF signal
Check main board
NG
OK
Check IC801 pin15=16V
NG
OK
Change Q801
Check the pin13 of IC801 have saw tooth wave
NG
Change IC801
Check PT801 have the output of square of wave at short
Change C819,C820,C821,C822
Check the output of PT801
OK
NG
OK
NG
Change PT801
Check connecter & lamp
OK