Table of Contents
Advertisement
4. TROUBLE SHOOTING
4.10 Earphone Trouble
TEST POINT
U205
TP2_FB205
CIRCUIT
VBUS_USB
CN201
TP
6
5
CN201
8
10
12
14
1
FB206
600
MUIC_DM
2
FB207
600
MUIC_DP
3
4
MUIC_ID
5
7
9
11
13
15
CN201
HS_MIC_N
HS_MIC_P
LGE Internal Use Only
MUST BE PLACED NEAR IO CONNECTOR
C217
270p
FM_ANT
TP5
ZD204
L201
C242
120n
10p
SC201
1
2
C233
27p
C236
22n
USB_DM
USB_DP
C226
C213
39p
10u
UART_RX
R229
UART_TX
2.2K
C234
22n
HP_LOUT
HP_ROUT
C205
C228
C274
C273
27p
1.5n
DNI
DNI
I2C_SCL
I2C_SDA
MUIC_INT
2. TROUBLE SHOOTING
Figure 4.10
VBAT
1V8_VDD
C244
0.1u
U205
(10V)
R226
R209
2.2K
DNI
D2
BAT
TP4
R220
1
A4
DN1
R233
1
A5
DP2
R264
1
B3
U1
U205
R265
1
A3
U2
TP4
TP
A1
MIC
R262
10
D4
3
AUD1
R263
10
D3
AUD2
TP
C235
C237
C265
C266
A2
ISET
DNI
DNI
390p
390p
- 92 -
Copyright © 2010 LG Electronics. Inc. All right reserved.
TP5_ZD204
CN201
TP3_R263
TP4_R262
U206
TP1_FB204
U205
VBUS_USB
C225
0.1u
(25V)
D5
VB
C5
MUIC_DM
COMN1
B5
COMP2
MUIC_DP
B4
FB203
1000
UID
R217
100
R219
2.2K
B1
RES
C232
C231
1u
L202
18n
D1
82p
CAP
C4
GND
C3
IC
C201
DNI
Only for training and service purposes
MUIC_ID
Advertisement
Table of Contents
