USB Failure (Right up/down side)

If the rightside USB port fails, perform the following actions one at a time to correct the problem. Do not replace non-defective FRUs:

Start

Check USB/B to

M/B cable

OK

Check USB/B

Swap M/B

Other Failures

OK

 

 

Re-assemble the

NG

 

USB/B cable to M/B

 

 

 

 

 

 

OK

 

 

Swap USB/B and

NG

 

USB cable

 

 

 

 

 

 

If the VGA board, LAN Port, external MIC or Speakers, PCI Express Card, 5-in-1 Card Reader or Volume Wheel fail, perform the following general steps to correct the problem. Do not replace non-defective FRUs:

1.Check whether the drive is OK.

2.Verify that the Test Fixture is OK.

3.Swap the mainboard and retest.

Chapter 4

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Image 159
Acer 7745 manual USB Failure Right up/down side, Other Failures