Acer Altos R701 Informacje Techniczne Pobierz pdf (Strona 34)

Troubleshooting

Cha

ter 4

This chapter provides troubleshooting information for the AL2616W:

1. No Power

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,X402 oscillate

waveforms are normal

Measure U701 Pin 2=3.3V,

U702 Pin 2=3.3V,U705 Pin 2=3.3V.

Replace Power section

Replace U701,U703,U705

Meas

Replace X401,X402

Replace U401

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Acer Altos R701 Informacje Techniczne Strona 34