AOC Wipro WLA171t - Page 34

17” LCD Color Monitor Wipro WLA171t
34
No Picture (LED orange)
No picture
The button if under
control
X601 oscillate
waveform is normal
Replace U601
Replace X601
Measure U201 PIN2=2.5V
U202 PIN2=3.3V
Check Correspondent
component
Replace U401
X401 oscillate
waveform is normal
Replace U201, U202
OK
OK
OK
OK
OK
NG
NG
NG
NG
Check reset circuit of
U601 is normal
Check HS/VS from
CN301 is normal
Replace X401
Check Correspondent
component
NG
NG
OK