Acer B3-A10 - Page 54

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11. Speaker box issue
NO.
Issue Description
Cause
Solution
1
Acoustic anomaly
Speaker box has defects
replace it
MB/SB has defects
Repair MB/SB
2
No sound
Speaker box connects poorly
re-assemble it
Speaker box has defects
replace speaker box
MB/SB has defects
Repair MB/SB