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4. TROUBLE SHOOTING
4.13.2. Headset path (Voice & Multimedia play)
Voice path for Head_Set as below:
MSM7200A HPH_R, HPH_L Æ C342, C343 Æ IC1 (Audio Subsystem) Æ FB5, FB6 Æ 3.5pi Ear-jack
Start
The sine wave
appear at TP1, TP2?
Change the Main board
NO
Connect the phone to network
Equipment and setup call
Setup 1KHz tone out
And insert head_Set
YES
Can you hear the tone
or sound?
NO
YES
END
YES
Check the 3.5pi Ear-jack
or change SPK Module
The sine wave appear at
TP3, TP4 ?
Change the Main board
NO
YES
Or Play Multimedia Contents
And insert head_set
(Or Some Sound Signal)
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