LG LG-P350 - Page 122

4. TROUBLE SHOOTING
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4.13.2. Headset path (Voice & Multimedia play)
Voice path & Multimedia play for headset as below:
MSM7227 HPH_R, HPH_L Æ TP1(C610),TP2( C611) Æ U600(audio subsystem) Æ TP3(FB603), TP4(FB604)
ÆJ600(Earjack connector)
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The signal appears at
TP3(FB603) and TP4(FB604)?
No
Yes
Can you hear the tone
or sound?
START
END
Re-solder at TP3 and TP4
or Change U600
No
Yes
Connect the phone to network
Equipment and setup call
Setup 1KHz tone out
and insert headset.
Or play multimedia contents
and insert headset.
Check the 3.5pi Earjack
The signal appears at TP1(C610),
TP2(C611)?
Change the Main B’d
Yes
No