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maintainance-no voice

Categories: OTHERS questionsStars: 3StarsVisit: -Release time: 2012-12-13 00:29:00
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how to solve the problem-no voice

cause one:

Change a new communication IC.  

analysis:

1. The volume has been already reduced to the minimum.

2. The speaker is damaged, or the power amplifier IC is burn down, or the line is a poor contact.

solutions:

1. Turn up the volume.

2. Change a new one correspondingly or plug in the line again.

the second cause:

The volume can not be increased or reduced.

analysis:

1. The button sticker is short circuit.

solutions:

1. Change a new one.

 

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