LG -A230 Service Manual page 74

CIRCUIT
VDD_IO_1V8
USB_DM
USB_DP
UART_RX
UART_TX
VDD_IO_1V8
DSS
P/D USB
P/U UART
ABB_INT_N
LGE Internal Use Only
VBAT
VUSB_LDO_4V9
C205
1u
C211
1u
R205
DNI
R213
I2C_SDA
10K
I2C_SCL
FM_LNA_EN VCAM_IO_1V8 VCAM_ANA_2V8
1u
C200
TP200
TP201
3
VIN
25 23
VBAT1 VBUS1
26 24
VBAT2 VBUS2
27 22
EXPDET D-
21
U200
D+
11 20
RT9866A
DN UID
12 19
DP EAN62112401 RES
13 18
U1 CAP
14
U2
15
AUD1
16
AUD2
17
MIC
32
DSS
- 74 - Copyright © 011 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
VCAM_DIG_1V8
1u 1u 1u
C201 C202 C203
VBUS_USB
TP1
Connected to CN01 #1pin
FB202 1800
R208 2.2K
C223
1u
Only for training and service purposes
C209
1u
MUIC_IO_M
MUIC_IO_P
MUIC_ACC_ID