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Troubleshooting
This chapter provides troubleshooting information for the X233H:
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 U703 Pin2=3.3V,
OK
OK
NG
NG
NG
Check U703, C706 and C707
Replace U401
Replace X401
NG
OK