LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
- 139 -
4.15.6 Microphone for main MIC
Main Microphone path as below:
MIC
→
C245,C248
→
U202(audio codec)
→
C229,C230
→
MSM6275A
→
MIC feed back gain logic
→
MSM internal CODEC
C245
1u
EVLC18S02015
VA200
C247
10p
2.2K
R221
C251
39p
2.2K
R227
MIC200
SUMY0009203
1
2
C252
39p
VA201
EVLC18S02015
39p
C246
1u
C248
WM_MICBIAS
WM_MIC1P
WM_MIC1N
WM_DVDD
WM_AVDD
WM_AVDD
1u
C229
1u
C224
100K
R214
C226
1u
1u
C230
C222
1u
R213
100K
C235
4.7u
A8
VMID
A4
B5
VREF
VXCLK
H3
VXDIN
J1
J2
VXDOUT
VXFS
J3
R215
100K
MONO2
A7
NC1
C8
NC2
F8
NC3
NC4
G2
E8
OUT3
OUT4
E9
J8
PCMCLK
H9
PGND
PVDD
G9
ROUT1
D9
ROUT2
B9
RXN
C2
RXP
B1
H1
SCLK
G1
SDIN
SPKRVDD
GPIO4
HPVDD
F9
HP_SPKRGND
C9
LINE1
A2
A1
LINE2
D8
LOUT1
A9
LOUT2
H4
LRC
J6
MCLK
C1
MIC1
MIC1N
D2
D1
MIC2
MIC2N
E2
MICBIAS
B4
F1
MODE_GPIO3
MONO1
B6
B7
U202
WM8753LEB-RV
A3
ACIN
B3
ACOP
ADCDAT
J5
A5
AGND
AVDD
A6
J4
BCLK
CSB_GPIO5
F2
DACDAT
H5
H6
DBVDD
DCVDD
J7
DGND
H7
G8
GP1_CLK1
GP2_CLK2
J9
E1
C225
1u
C228
1u
C234
4.7u
WM_DVDD
C236
4.7u
WM_DACDAT
WM_LRC
WM_MSPRXD0
MSPTXD0
MSPTCK0
MSPTFS0
WM_BCLK
WM_ADCDAT
SPK_AMP_EN
WM_HPH_R
WM_HPH_L
WM_ROUT2
WM_MICBIAS
AU_SW
VT_SW
PM_SDA
PM_SCL
AU_19.2M
WM_RXP
WM_RXN
WM_MONO2
WM_MONO1
WM_MIC1N
WM_ROUT1
WM_MIC1P
WM_MIC2N
WM_LOUT2
WM_MIC2P
Can you scoping some
sound signal at C245,C248?
Change the MIC
NO
YES
YES
make some sound or
voice to MIC
Work well?
END
YES
Can you scoping some
sound signal at C229,C230?
Check the U202 or
Change the Main B'd
NO
Start
MIC_BIAS(C102) is 2.7V?
Change the Main B'd
NO
Make a call
Place near
(CODEC VSS)
MSM pin W18
10%
SDCC_DAT1_GPIO99
F25
M25
SDCC_DAT2_GPIO100
M26
MICINN
AC19
AC20
MICINP
MIC1N
AF20
MIC1P
AE20
AF21
MIC2N
MIC2P
AF22
CCOMP
AA20
AF19
AUXIN
AE19
AUXIP
C611
NA
NA
C608
NA
C610
0.1u
C607
C609
NA
L600
100nH
C600
10p
MICINP
WM_MONO1
WM_MONO2
MICINN
R221
C245,C248
[main MIC]
[audio codec]
[MSM6275A]
C229,C230
Содержание KS10
Страница 1: ...Date July 2007 Issue 1 0 Service Manual Model KS10 Service Manual KS10 Internal Use Only ...
Страница 207: ... 208 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 214: ... 215 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 216: ... 217 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 217: ... 218 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 246: ...Note ...
Страница 247: ...Note ...