Acer Troubleshooting, This chapter provides troubleshooting information for the B193R, Chapter

Troubleshooting Chapter 4

This chapter provides troubleshooting information for the B193R:

1. No Power

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

OKNG

Measure U301 Pin2=3.3V, U304

Pin2=1.8V

NG

OK

Check if X201 oscillate waveforms are normal

NG

Replace X201 OK

Reinsert or check the power section

Measure CN301

OK

Replace U301,U302

Replace U203

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