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7. CIRCUIT DIAGRAM
1
2
CHARGING IC OVP
A
2V0_VRTC
2V62_VIO
VBUS_USB
VCHG
1
2
3
4
EOC
5
CHG_EN
6
C209
C210
1u
1u
(1%)
Remote Power On
2V0_VRTC
D
RPWRON_EN
R221
3.3M
R223
1
2
3
RPWRON
C226
2K
10u
EMX18
6
5
4
Q201
END_KEY_IN
E
1
2
LGE Internal Use Only
3
4
5
VBAT
VCHG_OVP
VBUS_OVP
U201
ISL9221
13
PGND
VDC
12
VDC_BYP
VUSB
11
BAT
_PPR
10
USB_BYP
_CHG
9
IVDC
_EN
8
GND
IMIN
7
IUSB
C211
C212
C213
1u
1u
1u
(1%)
(1%)
END
END_KEY_IN
KEY_COL7
R222
PWRON
END_KEY
10K
KEY_ROW6
3
4
5
6
7
2V62_VIO
NCS2200SQ2T2G
18PIN IO CONNECTOR
C200
R200
0.1u
1M
U200
5
4
VIN-
1
VCC
HOOK_DETECT
OUT
3
VIN+
GND
2
2V5_VAUDIO
C201
R201
100p
330K
VBUS_USB
2V62_VIO
R202
1.5K
C202
0.1u
HS_MIC_N
R203
2.2K
HS_MIC_P
C206
0.1u
C207
C208
27p
27p
R208
DNI
JACK_TYPE
USB_DP
USB_DM
JACK_DET
RPWRON_EN
RPWRON_EN
DSR
DSR
TX
UART_TX
RX
UART_RX
HSO_L
HSO_R
C217
C218
27p
27p
Battery Connector
VBAT
CN201
1
R218
4
2
BAT_ID
3
1K
C221
C222
C223
C224
C225
10u
1u
39p
39p
27p
- 108 -
8
9
10
2V5_VAUDIO
VCHG
VBAT
FM_ANT
VBUS_USB
C205
24p
CN200
21
19
1
FB200
1800
2
2 : Headset MIC
FB201
1800
3
3 : Jack type
FB202
1800
4
4 : CTS/HSO_L
FB203
1800
5
5 : RTS/HSO_R
R228
1
6
6 : USB+/Remote_INT/TXD
R229
7
1
7 : USB-/Remote_ADC/RXD
8
FB206
1800
8 : JACK_D
9
10
9,10 : BATT
11
11 : R/ON
12
13
12,13 : CHG
R210
47
14
14 : DSR
R230
0
15
15 : VUSB
16
16 : D/ TX
R211
47
17
17 : D/ RX
R212
47
18
20
22
HALL EFFECT S/W
2V62_VIO
R217
100K
SLIDE_OPEN
C219
0.1u
C220
U202
0.1u
EM-0781-T5
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
A
B
C
D
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Troubleshooting
