LG H990ds Service Manual page 73

3.13 Audio sub(3 rd ) MIC
It's operating Hifi Recording > concert mode
Checking Flow
Start
Check the MIC filter
And reconnect PCB
Hear the Voice
through the SPK
in 3mic loopback
test ?
Yes
Change damaged
contact pin.
Change
MIC FPCB
No
Change Main Board
End
LGE Internal Use Only
Yes
No
No
Yes
Contact pin
(ANT 6013~17)
73
3. TROUBLE SHOOTING
Image
Circuit Diagram
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