Acer 4230 사용자 설명서

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Chapter 4

Touch Pad Failure

If the Touch Pad 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: