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7. CIRCUIT DIAGRAM
16
15
14
L
KEY BACKLIGHT
VBAT
K
LD401
EDLH0013401
R407
R408
VA404
DNI
4.7
4.7
J
KEYPAD_LED
I
VIBRATOR CIRCUIT
H
VBAT
1
2
D403
3
3
R414
2
VIBRATOR
Q400
G
1K
1
R415
R416
100K
10
F
E
KEY_ROW0
KEY_ROW2
D
KEY_ROW3
KEY_ROW4
C
KEY_ROW1
B
A
16
15
14
LGE Internal Use Only
13
12
11
10
LD400
EDLH0013401
VA405
DNI
Charge Pump
VHP
C457
1u
VBAT
NC2
15
NC1
ENA
10
9
AVIN
13
VOUT
20
LED_CA1
LED1
PVIN
U400
19
6
LED_CA2
LED2
18
LED_CA3
LED3
SDA
17
8
LED4
SCL
16
7
C416
C417
C418
C414
C415
33p
33p
33p
1u
33p
C412
1u
C411
1u
VIB_N
END
KB423
KEYPAD INTERFACE
END_KEY
SW1
SW2
KB422
KB402
NUM 1
NUM 2
NUM 3
UP
DOWN
KB404
KB405
KB406
KB420
KB407
NUM 4
NUM 5
NUM 6
LEFT
RIGHT
KB408
KB413
KB414
KB418
KB419
NUM 7
NUM 8
NUM 9
OK
KB409
KB412
KB415
KB417
STAR
NUM 0
SHARP
SEND
KB410
KB411
KB416
KB401
13
12
11
10
9
8
7
6
LCD INTERFACE CONNECTOR
FL401
ICVE10184E150R101FR
1
9
LCD_WR
INOUT_A1
INOUT_B1
2
8
LCD_RS
INOUT_A2
INOUT_B2
3
7
LCD_CS
INOUT_A3
INOUT_B3
4
6
INOUT_A4
INOUT_B4
VIO VBAT
15pF
R417
FL402
ICVE10184E150R101FR
100K
1
9
LCD_DATA07
INOUT_A1
INOUT_B1
2
8
LCD_DATA05
INOUT_A2
INOUT_B2
3
7
LCD_DATA03
INOUT_A3
INOUT_B3
4
6
LCD_DATA01
INOUT_A4
INOUT_B4
I2C_SDA2
15pF
I2C_SCL2
FL400
ICVE10184E150R101FR
C413
C410
2.2u
2.2u
1
9
LCD_DATA06
INOUT_A1
INOUT_B1
2
8
LCD_DATA04
INOUT_A2
INOUT_B2
3
7
LCD_DATA02
INOUT_A3
INOUT_B3
4
6
LCD_DATA00
INOUT_A4
INOUT_B4
15pF
BATTERY CONNECTOR
VBAT
VIO
R420
CN400
100K
1
2
BAT_TEMP
3
ZD401
R419
C405
C407
680K
C408
39p
100u
39p
EMD2,5.1V,150mW,R/TP
9
8
7
6
- 112 -
5
4
3
2
VIO
VBAT
R401
R406
100K
100K
LED_CA1
35
LED_CA2
34
C423
LED_CA3
33
2.2u
32
31
30
R405
29
TP400
LCD_VSYNC
100K
28
27
26
25
24
LCD_RESET
23
22
D401
21
20
DNI
19
18
17
16
15
14
13
12
11
10
9
8
VIO
VIO
7
TP401
6
R403
LCD_ID
5
100K
4
3
2
1
C402
C401
CN401
1u
1u
GP : LOW
LGIT : HIGH
MICBIAS
MAIN MICROPHONE
R413
C403
10u
2.2K
C419
R411
MAIN_MICP
0.1u
100
C404
2
47p
1
C420
R412
MIC401
MAIN_MICN
100
0.1u
VA401
C421
C422
VA402
R418
2.2K
SEVY0005402
DNI
DNI
R410
0
5
4
3
2
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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L
K
J
I
H
G
F
E
D
C
B
A
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