Audio Trouble Shooting - LG KT520 Service Manual

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4. TROUBLE SHOOTING

4.10 Audio Trouble Shooting

4.10.1 Receiver
Signals to the receiver
- Receiver signals are generated at AB3000
• BEARP, BEARN
- Receiver path :
• AB3000 (BEARP, BEARN)
• C637,C638 on main board
• LCD FPCB
• Speaker/Receiver
Note: It is recommended that engineer should check the soldering of R, L, C along the
corresponding path before every step.
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Copyright © 2008 LG Electronics. Inc. All right reserved.
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Only for training and service purposes

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