- 141 -
4. TROUBLE SHOOTING
4.15.7 Microphone for headset
MIC for Head_Set path as below:
Insert Headset
→
EAR_SENSE_N(pin8) go 0V
→
MSM6275A and STN8810 sense Head_Set
insertion
→
MIC signal
→
U202(audio codec)
→
MSM6275.
[CN202(headset connector)]
[MSM6275A]
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
1608
CONNECTOR VBATT_SENSE PIN CHECK!!
1%
1%
C249
47n
R717
NA
R716
0
U203
NCS2200SQ2T2G
GND
2
1
OUT
VCC
5
3
VIN+
VIN-
4
5
6
7
8
9
11
12
13
14
15
16
17
18
19
2
20
21
22
3
4
CN202
1
10
C242
33u
FB503 1000
33u
C244
10p
C258
47p
C255
R223
68
R225 NA
C240
1u
RSB6.8CST2R
VA211
EVLC14S02050
VA205
1
2
3
4
5
EVLC14S02050
VBATT
CN203
VA208
smd_1608h_9_r
1u
C254
2.2K
R217
680K
R226
C259
33p
0.01u
C257
C238
0.1u
C239
10p
USB_VBUS_IN
VA206
EVLC14S02050
4
G2
1
IN
2
OUT
NFM21PC105B1A3
U205
G1
3
FB245
10u
C237
100K R219
+5V_PWR
47p
C256
EVLC14S02050
VA204
PSD12-LF
D200
VREG_MSMP_2.7V
INSTPAR
470K
R224
C253
33u
VA203
EVLC18S02003
330K
R218
VA207
EVLC14S02050
C241
1u
AP_VDD_IO_1.8V
EVLC18S02003
VA202
0.1u
C260
68
R222
ICVL0505600V150FR
VA209
1M
R216
VA210
RSB6.8CST2R
11K
R228
PSD05-LF
D201
INSTPAR
USB_D+
USB_D-
EAR_SENSE_N
HOOK_SENSE
WM_LOUT1
UART_RXD
UART_TXD
VBAT_TEMP
WM_MIC2N
WM_MIC2P
REMOTE_PWR_ON
VBATT_SENSE
WM_ROUT1
WM_AVDD
1u
C229
1u
C224
C226
1u
1u
C230
C222
1u
A8
VMID
A4
B5
VREF
VXCLK
H3
VXDIN
J1
J2
VXDOUT
VXFS
J3
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
WM_HPH_R
WM_HPH_L
WM_ROUT2
WM_MICBIAS
WM_RXP
WM_RXN
WM_MONO2
WM_MONO1
WM_MIC1N
WM_ROUT1
WM_MIC1P
WM_MIC2N
WM_LOUT2
WM_MIC2P
Start
EAR_SENSE_N is 0V?
END
Make a call
Change the Main b'd
Change the Main b'd
MIC_BIAS is 2.7V ?
YES
YES
NO
NO
NO
Try change the head set
Can you scoping some
sound signal at C240,C241?
Change the MIC
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
NO
YES
Place near
(CODEC VSS)
MSM pin W18
10%
SDCC_DAT1_GPIO99
F25
M25
SDCC_DAT2_GPIO100
SDCC_DAT3_GPIO101
M26
MICFBP
MICINN
AC19
AC20
MICINP
MDP_VSYNC_PRIMARY_GPIO105
AD2
AE3
MDP_VSYNC_SECONDA_GPIO104
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
[audio codec]
C240,C241
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 ...