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2. No Picture (LED is orange)
No picture
The button if under
control
X401 oscillate
waveform is normal
Replace U401
Replace X401
Measure U702 Pin2=3.3V,
Check Correspondent
component
Replace U401
X401 oscillate
waveform is normal
Replace U702
OK
OK
OK
OK
OK
NG
NG
NG
NG
Check reset circuit of
U401 is normal
Check HS/VS from
CN403 is normal
Replace X401
Check Correspondent
component
NG
NG
OK