Headset Mic - LG -A230 Service Manual

CIRCUIT
RCV_SPK_N
RCV_SPK_P
TP0
HS_L
HS_R
TP01
HS_OUT_R
HS_OUT_L
HS_JACK_DET
HS_GND
HS_MIC_N
HS_MIC_P
LGE Internal Use Only
VBAT
C210 1u
C212 1u
C2
IN1-
C1
IN1+
IC200
C213 1u D2
IN2-
WM9093ECS-R
C215 1u D1
IN2+
C219 1u D3
IN3-
C220 1u C3
IN3+ RCV_CALL
C230
2.2u
I2C_SCL
I2C_SDA
R217 0
HS_GND
VDD_IO_1V8
Q200
R201
S
1M
2
D
3
G
VDD_IO_1V8
1
EQFP0000101
R239 100K
R203
R240
DNI
10
VA208
SEVY0005101
R241 R242
ICVL0518050FR
DNI DNI
C227
2.2u
C231 22n
C232
DNI
C235 22n
C228 C229
10n 10n
VDD_IO_1V8
U202
5
VIN-
4
1
VCC
HS_HOOK_DET
OUT 3 VIN+
GND
2
NCS2200SQ2T2G
EUSY0250501
C206
C207
10u
0.1u
C5
OUT+
D5
OUT-
A2
HPL
A1
HPR
B5
CPVDD
C221 2.2u
A3
CPVSS
C222 2.2u
A4
CP
A5
CN
C224 2.2u
EUSY0403901 VDD_IO_1V8
FB204 1800
C233
2.2u C234
0.1u
R243
0
FOR TMUS C208 DNI
C204
FM_ANT
1n
ZD200
C208
L200
100n 27p
C264 150p
HS_GND
R246 20
FB200 1800
R247 20
FB201 1800
FB203 1800
ZD201
VA200 VA201
EDTY0010101
VHS_MIC

Headset MIC

Resoldering points
R215
2.2Kohms
FB205 1800
R216
1K
VA202
R222 100
R237
100K
- 91 - Copyright © 011 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
RCV_SPK_OUT_P
RCV_SPK_OUT_N
HS_OUT_L
HS_OUT_R
C225 C226
47p 47p
M6
2
M1
3
M4F
4
M3
5
M4
6
M5
1
J200
JAM3333-F32-7F
ENJE0008001
Only for training and service purposes