LG KU580 Service Manual - Page 98

Speaker Voice Loud Speaker,Midi, MP3,Key Tone, Signals to the speaker

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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. Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 99 - LGE Internal Use Only

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- 99 -
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.