3. TROUBLE SHOOTING
- 78 -
Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3.8.3 Receiver Trouble Shooting
Receiver control signals are generate by MT6323(U4100), Receiver/SPK(CN8100) : Exactly same as Speaker
START
Check the Receiver soundand
check receiver wire.
Change Main Board
Receiver Contact is OK?
Hear the sound to the Receiver?
Yes
Yes
Yes
Yes
Change Receiver Module.
Can you hear a sound?
Check Main PCB.(C4101, FB8504,8505,
C8012,8013)Receiver Sound OK?
No
No
No
No
END
Re-assemble the Receiver