3. TROUBLE SHOOTING
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3.8.2 Speaker & Receiver Trouble Shooting
It’s trouble shooting guide for no sound case.
Speaker & Receiver control signals are generate by MSM8210 (U2100)If low level volume or breaking the sound, change
speaker module
START
Check the Speaker. And reassemble the speaker
module.
Change the main board
Change the speaker?
Hear the sound to the Speaker?
Yes
Yes
Yes
Check a main PCB.
L6700, L6701(TP1), R6700, R6701(TP2),
U6700(TP3) Speaker sound OK?
No
No
No
END
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