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7. CIRCUIT DIAGRAM
1
2
KEY MATRIX
VBAT
R300
A
10K
END KEY
R314
POWERKEY
680
SW300
R316
680
KEY_ROW0
R318
680
KEY_ROW1
B
R319
680
KEY_ROW2
R320
680
KEY_ROW3
R321
680
KEY_ROW4
C
R324
680
KEY_COL0
R325
680
KEY_COL1
R326
680
KEY_COL2
R327
680
KEY_COL3
D
SIM CONNECTOR
2V85_VSIM
J300
R333
15K
4
C5
5
R334
C6
6
SIM_DATA
C7
10
0
GND4
9
E
GND3
C330
NA
1
2
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3
4
5
CN300
C300
NA
C301
C302
NA
NA
SEND_KEY
2
3
CLR
T
SW302
SW303
SW304
SW305
C307
1
LEFT
NA
SW306
SW307
C309
4
5
6
UP
NA
SW309
SW310
SW311
SW312
C310
7
DOWN
CONF
RIGHT
NA
SW314
SW315
SW316
SW317
C313
0
8
*
#
NA
SW319
SW320
SW321
SW322
C315
NA
C321
C322
C323
C324
NA
NA
NA
NA
2V85_VSIM
1
C1
2
C2
SIM_RST
3
C3
SIM_CLK
7
GND1
8
GND2
C331
C332
C333
220n
NA
1000p
3
4
5
6
7
2V8_VEXT
KEY BACKLIGHT
VBAT
R301
10K
SEND
R315
680
SW301
C306
NA
KEY_BACKLIGHT
MENU
C308
SW308
1u
SEL
SW313
VBAT
FAV
C311
SW318
1u
5
9
FB300
8
MLED
SW323
R322
11
LCD_BACKLIGHT_CTRL
75K
4
R323
C316
43K
1u
VBAT
VBAT
VIBRATOR
R328
47K
R329
10
Q300
R330
220
R331
VIBRATOR
20K
R332
7.5K
MOTOR(+)
EMZ2
C329
4.7u
- 81 -
8
9
10
VBAT
(WHITE LED)
R317
0
VA301
ICVS0505481FR
CHARGE PUMP
U300
10
IN
C1+
C312
1u
9
OUTCP
C1-
7
C2+
C314
EN_SET
1u
6
C2-
3
D1
MLED1
2
D2
MLED2
1
D3
MLED3
12
GND
D4
MLED4
AAT3155ITP-T1
FLIP SWITCH
2V8_VMEM
U301
EM-1681-FT
FOLDER_DET
C327
C325
C326
C328
1u
27p
1u
27p
LGE Internal Use Only
A
B
C
D
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