Audio - Speaker - LG -H815 Service Manual

3.19.1 Audio - Speaker

It's trouble shooting guide for sound mute case. (don't hear)
Speaker control signals are generate by MSM8992-B(U2100), WCD9330(U6100) Speak Boost_Amp (U6200)
Checking Flow
Check the Speaker sound
and check Speaker contact.
Yes
Hear the sound from
Change Speaker
Yes
Yes
Main PCB part (FB6930,
FB6931 L6700, L6701)
(CN6200, CN6201)
Speaker signal OK?
Change Main Board
LGE Internal Use Only
Start
the Speaker?
No
Module.
Can you hear a
sound?
No
2. Check
No
End
L6701
CN6201
52
3. TROUBLE SHOOTING
Image
FB6931 FB6930
L6700
CN6200
Circuit Diagram
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