BenQ G2200W Service Manual page 37

22" LCD Color Monitor
W / LED, No Backlight
Check Inverter input =12V
Check ON/OFF signal
Check the output of T801, T802
Check connecter & lamp, feedback and protect circuit
NG
OK
NG
OK
Check IC801 PIN 2=5V
NG
OK
Check IC801 PIN1/PIN15 PWM wave
NG
OK
Check Q805,Q806 Drain wave
NG
OK
NG
OK
Check adapter and F801
Check Interface board or main board
Change ON/OFF circuit
Check IC801
Change Q805,Q806
Change T801, T802
37
BenQ G2200W