Troubleshooting
This chapter provides troubleshooting information for the H235H:
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 U104 Pin2=1.8V, U103 PIN2=3.3V
OK
Check if X401 oscillate waveforms are
normal
NG
OK
Replace U401
NG
NG
Check CN101,U104 and U103
35
Reinsert or check the
power section
Chapter 4