Technical information

31
Troubleshooting
This chapter provides troubleshooting information for the V193W:
1. No Power
Chapter 4
No power
Press power key and look if the
picture is normal
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 U404 Pin2=3.3V,
OK
OK
NG
NG
NG
Measure CN404
Replace U401
Replace X
4
01
NG
Replace U404
OK
OK