Acer Aspire 4738 - Intermittent Problems; Undetermined Problems

124 Chapter 4
USB Failure
If the internal USB module fails, perform the following actions one at a time to correct the problem. Do not
replace a non-defective FRU:
Start
Check USB/B to
M/B cable
Re-assemble the
USB/B cable to M/B
NG
Check USB/B
OK
Swap USB/B and
USB cable
NG
Swap M/B
OK