BenQ G700 Service Manual page 37

BenQ G700
Black Screen
Black Screen
Check VCC
OK
Check VCC3.3V
and VCC1.8V
OK
Check Reset
Waveform
OK
Check Crystal pin
waveform
OK
Check CCFL
Enable
U103 fail
NG
NG
NG
NG
OK
NG
Power Fail
Check U102
Check
Check
OK
Check
pin10 of
NG
Check R102,R101,R104,
and Q101
37
Service Manual
Inverter fail