18.5" LCD Color Monitor AOC e940Swa
42
2. No Backlight
Check C802(+)=12V
Check adapter and MB
Check ON/OFF signal
Check main board
Check Q801 PIN5,6,7,8=12V
Change Q801
Check IC801,IC802 Pin1,2,3,4,5,6,7,8,9 have
the output of square wave at short time
Check IC801,IC802
Check connecter & lamp, feedback and protect circuit
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