LG GT500 - Page 105

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
4.9.6. Headset
If Maxim, then 4.7uF
TI : PD = USB, PU = UART
MUIC
If TI, then 10nF
Close to MUIC
MAXIM : NA = USB, PU = UART
C509
4.7u
C508
22p
2.2K
R511
VDDE_1V8
22p
C507
C503 1u
10R506
VBAT
VBAT
R505 10
DNIR507
IC
C3
INT
B2
A2
ISET
A1
MIC
B1
RES
SCL
C2 C1
SDA
B3
U1
U2
A3
B4
UID
VB
D5
U501
D4
AUD1
D3
AUD2
D2
BAT
CAP
D1
COM1
C5
B5
COM2
A4
DN1
A5
DP2
GND
C4
MAX14526EEWP_TCC6
C506
22p
FB502
FB500
C505 0.1u
R508 DNI
R503 0
TP602
0
R501
VBUS
2.2K
R504
FB501
C504
1u
0R502
HS_EAR_R
HS_EAR_L
USW_ID
MIC2P
APP_ACC_UART_RX
APP_ACC_UART_TX
USW_DM
USW_DPUSB_DP
APP_GP_USW_INT
APP_GP_USW_SCL
APP_GP_USW_SDA
USB_DM
1%
Audio Subsystem
Audio
Subsystem
1%
C343
B3
B1
VDD
A3
VSS
18000p
A4
C1P
A5
D3
GND
HPL
A2
HPR
A1
INA1
D2
INA2
D1
C2
INB1
C1
INB2
D5
OUT+
B5
OUT-
C4
PGND
C5
PVDD
RXIN+
D4
B4
RXIN-
SCL
C3
SDA
MAX9877AEWP_TG45
U301
B2
BIAS
C1N
C342 1u
C334
0.1u
C354
1u
C333
1u
15R323
VA300 ICVL0505101V150FR
VBAT
15R322
C332
1u
C353 22p
C336 1u
C352 22p
C339 1u
VA301 ICVL0505101V150FR
18000pC344
C338 1u
HS_EAR_L
HS_EAR_R
SPK_RCV-
SPK_RCV+
AMP_I2C_SCL
AMP_I2C_SDA
EAR_R
EAR_L
SPKRP
SPKRN
BEARP
BEARN
6
7
8
9
CN501
1
10
11
12
13
14
15
2
3
4
5
USW_ID
USW_DP
USW_DM
TP8
TP4
TP5
TP1
TP6
TP7
TP2
TP3