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4.15.5 Loud speaker path (VT, multimedia play, etc)
Loud speaker path (VT, multimedia play) as below:
STN8810(msptxd0)
→
U201 (audio codec)
→
C237,C238
→
U209 (Audio Syb system)
→
70 Pin
BtoB Connector
→
FPCB pads for Left speaker, PAD of LCD Module for Right speaker
Start
Connect the phone to network
Equipment and setup call
Setup 1KHz tone out
Set phone with speaker phone mode
The sine wave appear at
C237, C238?
Check the U201 or
Change the Main board
NO
Check the U209
and 70pin connector
NO
YES
YES
Can you hear the tone?
Change the speaker
or LCD Module
NO
YES
END
The sine wave appear at
pads of speaker?
- 134 -
4. TROUBLE SHOOTING
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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Audio Codec
Summary of Contents for KT610
Page 1: ...Date June 2008 Issue 1 0 Service Manual Model KT610 Service Manual KT610 Internal Use Only ...
Page 233: ...Note ...
Page 234: ...Note ...