Touchpad Failure; Internal Speaker Failure - Acer Aspire 4937 Series Service Manual

Touchpad Failure

If the Touchpad doesn't work, perform the following actions one at a time to correct the problem. Do not
replace a non-defective FRUs:

Internal Speaker Failure

If the internal Speakers fail, perform the following actions one at a time to correct the problem. Do not replace
a non-defective FRUs:
150 Chapter 4