Acer Aspire One D255 Series, Service Manual, Page: 140 / 272

130 Chapter 4
Touch Pad 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:
Start
Check M/B
T/P FFC
Re-assemble
the T/P FFC to
M/B
OK
NG
Check Logic
Upper
OK
Swap/Re-
assemble the
T/P board or
T/P FFC
OK
NG
Swap M/B
Start
Check M/B
SPK cable
Re-assemble
the SPK cable
to M/B
OK
NG
Check Logic
Lower
OK
Swap Logic
lower
OK
NG
Swap M/B