eMachines E181H Service Guide - Page 34

No Picture LED is orange - reset

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2. No Picture (LED is orange) No picture The button if under NG X401 oscillate NG control waveform is normal Replace X401 OK Measure U404 PIN2=3.3V OK OK Check reset circuit of U401 is normal OK Replace U401 NG Check Correspondent component X401 oscillate waveform is normal NG OK NG Check CN401, U404 Replace X401 Check HS/VS from CN101 is normal OK Replace U401 NG Check Correspondent component 34

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34
2. No Picture (LED is orange)
No picture
The button if under
control
X401 oscillate
waveform is normal
Replace U401
Replace X401
Measure U404 PIN2=3.3V
Check Correspondent
component
Replace U401
X401 oscillate
waveform is normal
Check
CN401, U404
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