- 110 -
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
4.11.2. Speaker (Voice Loud Speaker,Midi, MP3,Key Tone)
•
Signals to the speaker
–
Speaker signals are generated at AB3100
•
SPKRP, SPKRN
–
Speaker path :
•
1. AB3100 (SPKRP, SPKRN)
•
2. C348, C351 on the main board
•
3. U302(audio amp & Analog switch) on the main board
•
4. LCD FPCB
•
5. Speaker/Receiver
h
Note : It is recommanded that engineer should check the soldering of R, L, C
along the corresponding path before every step.
Содержание TU750
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