Service manual

BUFFALO FTD-G931AS/BK
17
White screen
No picture
The button if under
control
X601 oscillate
waveform is normal
Replace U601
Check
Correspondent
component.
Measure U202 PIN2=3.3V
U201 PIN2=1.8V
Check Correspondent
component
Replace U401
X401 oscillate
waveform is normal
Check Correspondent
component.
OK
OK
OK
OK
NG
NG
NG
NG
NG