Acer X233H Servicehandleiding - Pagina 31
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Troubleshooting
This chapter provides troubleshooting information for the B203H:
1. No Power
Replace X401
No power
Press power key and look if the
picture is normal
NG
Please reinsert and make sure the
AC of 100-240 is normal
OK
Measure U703 Pin2=3.3V,
NG
OK
Check if X401 oscillate waveforms are
normal
NG
OK
Replace U401
NG
Reinsert or check the
power section
Check U703, C706 and C707
31
Chapter 4