Acer B223W - Bdmr - 22" LCD Monitor Panduan Servis - Halaman 31

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Troubleshooting

This chapter provides troubleshooting information for the B223W:

1. No Power

Measure U701 Pin2=3.3V and U702 PIN2=1.8V

No power

Press power key and look if the

picture is normal

Please reinsert and make sure the

5V and 12V input is normal

Check X201 oscillate waveforms

are normal

Check U202

Reinsert or check the

power section

Check

replace U701,U702

Replace X201

CN401

Chapter 4