Acer X173 - Chapter 4 Troubleshooting

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Troubleshooting
This chapter provides troubleshooting information for the X173:
1. No Power
Cha
p
ter 4
No power
Press power key and look if the picture
isLCD Interface (CN601)
Please reinsert and make sure the
AC of 100-240 is normal
Reinsert or check the
power section
Check if X401 oscillate
waveforms are normal
Measure U201 Pin 3=5V, U201 Pin
2=3.3V
OK
OK
NG
NG
NG
Measure CN201 Pin3=5V?
Replace U401
Re
p
lace X401
NG
Replace U201
OK
OK
if the picture is normal
Replace U501
NG