Table of Contents
Advertisement
4.10 Earphone Trouble
4.9 Earphone Trouble
TEST POINT
CIRCUIT
TP6
TP8
TP6
TP12
TP12
C218
39p
TP8
C242
HP_MICN
0.1u
TP9
C266
R207
C213
TP9
2.2u
UART_RXD
2.2K
39p
TP11
UART_TXD
C212
HP_MICP
TP7
0.1u
C220
TP10
39p
TP11
TP7
TP10
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
TP1
TP2
TP4
VIO
VBAT
R213
D2
47K
BAT
A4
USB_DM
DN1
A5
USB_DP
DP2
B3
U1
A3
EUSY0434001
U2
A1
MIC
D4
HP_LOUT
AUD1
D3
HP_ROUT
AUD2
TP
A2
C257
C256
C239
ISET
2.2u
TP3
1n
1n
I2C_SCL1
I2C_SDA1
MUIC_INT
4. TROUBLE SHOOTING
TP6
TP3
Figure 4.10.1
Figure 4.9.1
V_BUS
D5
VB
C5
COMN1
B5
COMP2
TP2
IC200
B4
FB203 120
UID
R206
R229
B1
RES
100
2.2K
VBUS_REG
C219
D1
CAP
1n
C4
R222
GND
C3
IC
100K
C224
C244
1u
DNI
VIO
R215
L202
2.2K
27n
- 77 -
4. TROUBLE SHOOTING
TP7
TP9 TP10
TP8
TP1
TP12
TP11
1
TP1
CN202
6
8
V_BUS
TP2
10
12
14
1
0
R201
2
0
R203
3
4
5
7
9
11
VA101
VA102
D201
C209
C223
13
DNI
33p
1u
15
DNI
DNI
D210
DNI
LGE Internal Use Only
TP4
TP1
FM_ANT
L201
C241
10p
270n
Advertisement
Table of Contents
