LG GW520 - Page 49

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. BB Circuit Technical brief
GW520 service manual
3.13.3 Headset circuit
[Figure 3.13.3-1] Headset circuit diagram
2
SFEY0006501
NFM21PC105B1A3
FL300
3
G1 G2
4
IN
1
OUT
C314
10p
L300
270nH
CN301
1
10
11
2
3
4
5
6
7
8
9
ENRY0008101
GU071-5P-SD-E1500
R306 220
HB-1T1005-221JT
220R305
VBUS_USB
MUIC_ID
FM_ANT
MUIC_DP
MUIC_DM
MUIC
FB303
FB302
HB-1M1005-102JT
DNI
R310
RPWRON_EN
VBUS_USB
VBAT
300K
R309
TP301
TP300
C320
56p
C326
0
R300
2.2u
27p
C321
27p
C305
22n
C319
C311
22n
0.1u
C306
0.1u
C303
C3272.2u
R301
2.2K 100K
R302
2V62_VIO
VBAT
TP304
FB301 BLM15BD182SN1D
R308 2.2K
C324
120p
C315
27p
2.2u
C316
R304
2.2K
A1
MIC
B1
RES
C2
SCL
C1
SDA
U1
B3
U2
A3
UID
B4
D5
VB
D4
AUD1
D3
AUD2
BAT
D2
CAP
D1
C5
COM1
B5
COM2
DN1
A4
DP2
A5
GND
C4
C3
IC
B2
INT
A2
ISET
U301
MAX14526EEWP_TCC6
EUSY0371201
MUIC_ID
HS_MIC_P
HS_MIC_N
USB_DM
USB_DP
I2C3_SDA
I2C3_SCL
MUIC_DP
MUIC_DM
UART_TX
HSO_L
MUIC_INT
UART_RX
HSO_R