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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 U703 Pin2=3.3V,
Check Correspondent
component
Replace U401
X401 oscillate
waveform is normal
Check U703, C706 and C707
OK
OK
OK
OK
OK
NG
NG
NG
NG
Check reset circuit of
U401 is normal
Check HS/VS from
CN101 is normal
Replace X401
Check Correspondent
component
NG
NG
OK