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7. CIRCUIT DIAGRAM
1
2
AUDIO POWER AMP
C201
DNI
R202
39K
U201
TPA6205A1ZQVR
A
C205
470n
R204 10K
C3
SPK_P_ABB
IN-
VDD
C207
470n
C2
SPK_N_ABB
IN+
VO+
R207
10K
B1
AMP_SHDN
_SHUTDOWN
VO-
C1
BYPASS
GND
R208
100K
C212
220n
C213
DNI
R209
39K
B
MIC
2V5_VMIC
R212
1K
R216
C219
C217
2.2u
2.2K
39p
R219
100ohm
VINNORP
C221
C222
39p
39p
C223
0.1u
VINNORN
R221 100ohm
CLOSE TO ABB
R223
C227
C228
C
2.2K
39p
39p
External Charger
USB_VBUS
VBAT
D
VCHARGE
U205
ISL9221
13
PGND
1
VDC
12
VDC_BYP
2
VUSB
11
BAT
3
_PPR
_PPR
10
USB_BYP
4
_CHG
_CHG
9
IVDC
5
_CHG_EN
_EN
8
GND
6
IMIN
7
IUSB
C244
C245
C246
1u
1u
1u
E
1
2
LGE Internal Use Only
3
4
5
VBAT
SPEAKER
C202
C203
SPK_OUT_N
1u
0.1u
C206
A3
39p
SPK_OUT_P
B3
SPK_OUT_N
A1
SPK_OUT_P
B2
VBAT
USB
N.M
C216
VBUS_USB
U203
MAX4717ETB+T
DNI
11
P_GND
1
V+
10
NO2
USB_N
2
R217
USB_P
NO1
9
12K
COM2
IO_P7
3
R214
0
IO_P6
COM1
R215
0
8
IN2
4
IN1
MIC201
7
R220
NC2
DEBUG_RX
1
5
DEBUG_TX
NC1
12K
2
6
GND
SPOB-413S44-RC10BC
U204
STF203-22-TC
6
1
USB+
D+IC
D+
USB_P
5
2
VUSB
VBUS
GND
4
3
USB-
D-IC
D-
USB_N
BATTERY
CONNNECTOR
VCHG_ABB
VCHG_ABB
VBAT
R232
12K
VBUS_USB
CN203
1
CHG_DET
2
BATT_TEMP
3
R235
12K
C236
C239
C240
C241
22u
1u
39p
39p
C247
C248
1u
1u
3
4
5
6
7
RECEIVER
R203
CN201
0
1
2
R206
0
C210
C211
17-8T-01PP
SUSY0022601
39p
39p
HEADSET MIC
VCHARGE
2V5_VMIC
R218
1.5K
USB_DET
C220
0.1u
AUXIN
C224
C225
R222
10u
DNI
2.2K
2V8_VEXT
AUXIP
ACC_DETECT
C226
0.1u
C229
C230
39p
39p
R224
100K
HS_OUT_L
C232
DNI
HS_OUT_R
IO_P6
C233
C234
IO_P7
2V8_VEXT
39p
39p
JACK_DETECT
RPWRON
R231
100K
DSR
R233
47
(UART_TxD)
USC_2
R234
47
(UART_RxD)
USC_1
PIF-UNION
USAGE
C238
JIG PORT
DNI
UART
S/W Download
MON PORT
(18pin 16, 17)
/ Calibration
DEBUG_TX/RX
UART PORT
S/W DEBUG???
(18pin 6, 7)
- 92 -
8
9
R201
RCV_P
CN204
0
C204
1
39p
2
R205
RCV_N
0
C208
C209
56p
56p
2V8_VEXT
U202
NLAS5223BMNR2G
1
10
VCC
NO2
C214
R210
2
9
HS_OUT_R
NO1
COM2
R211
C215
0
100u
3
8
AUXOP_R
COM1
IN2
0
100u
R213
4
7
HS_OUT_EN
IN1
NC2
DNI
5
6
C218
NC1
GND
1u
(Reverse Type)
VBAT
CN202
21
R226
R225
19
100K
DNI
1
FM_ANT
R227
0
2
3
C231
L201
FB801
1800
4
270nH
39p
FB802
1800
5
6
7
USB_VBUS
8
9
10
R230
11
12
47
13
14
15
16
17
C235
18
1u
20
22
C243
GU041-18P-E1000
1u
ENRY0006801
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
A
A
HS_OUT_L
B
B
AUXOP_L
HS_OUT_EN
C
D
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