Chapter 4 Troubleshooting - Acer packardbell viseo 193ws Service Manual

Troubleshooting
This chapter provides troubleshooting information for the Viseo 193ws:
1. No Power
Please reinsert and make sure
the AC of 100-240 is normal
X401 oscillate waveforms are
normal
No power
Press power key and look
if the picture is normal
NG
OK
Measure U703 PIN2=3.3V
NG
OK
NG
OK
Replace U401
Reinsert
NG
Adapter/Inverter section
Check U703, C706 and C707
Replace X401
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Chapter 4
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