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LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
4.10.2. Speaker (Voice Loud Speaker,Midi, MP3,Key Tone)
Signals to the speaker
•
Speaker signals are generated at Veronica
- AUXO1/Right, AUXO2/Left
•
Speaker path :
1. Veronica (AUXO1/Right, AUXO2/Left)
→
2. C633, C634 on the main board
→
3. U602(audio amp) on the main board
→
4. ZD500,ZD501on the main board
→
5. Speaker/Receiver
♣
Note : It is recommanded that engineer should check the soldering of R, L, C
along the corresponding path before every step.