
4. TROUBLE SHOOTING
- 99 -
Copyright © 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4.19 Headset microphone
Headset -> MIC_ 2N( TP1 ) /MIC_2P ( TP2 ) -> QSC6270
START
Change the Headset
Change the User’s Headset
Sine wave appears at
TP1[MIC_2P]?
Change the MAIN board
Insert Headset & Make a call
Change MiniABB
Yes
No
Yes
Yes
No