LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
- 132 -
4.15.3 Sound path for headset
Multimedia Sound path for Head_Set as below:
STN8810(msptxd0)
→
U202(audio codec)
→
C242,C244
→
#4,#5 pin of CN202 headset Jack
Start
Connect the phone to network
Equipment and setup call
Setup 1KHz tone out
And insert head_Set
The sine wave appear at
C242,C244 ?
Check the U202
or change the Main b'd
Can you hear the tone?
NO
YES
YES
END
Headset insertion detection
in the Main LCD Display OK?
Check #8 pin of CN202
or change the Main b'd
NO
YES
Check the CN202
or change the Main b'd
1608
5
6
7
8
9
11
12
13
19
2
21
3
4
CN202
1
10
C242
33u
FB503
1000
33u
C244
R223
68
C240
1u
VBATT
1
IN
2
OUT
U205
FB245
100K
R219
+5V_PWR
C241
1u
68
R222
USB_D+
USB_D-
EAR_SENSE_N
WM_LOUT1
WM_MIC2N
WM_MIC2P
REMOTE_PWR_ON
WM_ROUT1
C242, C244
CN202
Summary of Contents for KS10
Page 1: ...Date July 2007 Issue 1 0 Service Manual Model KS10 Service Manual KS10 Internal Use Only ...
Page 246: ...Note ...
Page 247: ...Note ...