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7. CIRCUIT DIAGRAM
1
2
BACK-UP BATTERY
A
VBACKUP
C400
1u
VBAT
KEY BACKLIGHT
B
R407
R408
R409
R410
R411
R412
C408
47
47
47
47
47
47
DNI
LD400
LD401
LD402
LD403
LD404
LD405
KEY_BACKLIGHT
VA401
ICVN0505X150FR
C
T-FLASH
TFLASH_EN
R428
100K
2V8_VEXT
D
R429
R430
R431
470K
56K
56K
T_DATA1
T_DATA0
T_CLK
T_CMD
T_DATA3
T_DATA2
T_Detect
E
1
2
LGE Internal Use Only
3
4
5
SIM CONNECTOR
2V85_VSIM
2V85_VSIM
R401
J400
15K
4
1
C5
C1
5
2
R402
C6
C2
6
3
SIM_DATA
C7
C3
10
7
0
GND4
GND1
9
8
GND3
GND2
C402
DNI
VBAT
VIBRATOR
J401
1
R413
R414
C409
47
47
1u
2
(50V,J,NP0)
R421
VIBRATOR
1K
VBAT
2V85_TF
U400
BH28FB1WHFV
1
5
STBY
NC
2
6
GND
BGND
3
4
VIN
VOUT
(2.8V 150mA)
C417
C418
1u
1u
2V85_TF
R434
R432
R433
56K
56K
56K
J402 AXA463062P
DAT1_2
DUMMY1
DAT0
VSS
CLK
VDD
CMD
CD_DAT3
DUMMY2
DAT2
DETECT_A
DETECT_B
DUMMY3
C419
GND
DNI
3
4
5
6
7
END
R400
POWERKEY
680
PWR
SIM_RST
SIM_CLK
R403
KEY_ROW0
680
C401
C403
C404
C405
SW400
DNI
220n
DNI
1000p
R404
KEY_ROW1
680
C406
SW403
DNI
R405
KEY_ROW2
680
C407
SW406
DNI
KDS114E
R406
D400
KEY_ROW3
680
C410
STAR
DNI
R420
R419
10
KEY_ROW4
680
C411
3
Q400
DNI
2
C412
DNI
1
KTC4075E
R422
KEY_COL0
R423
680
(1608)
100K
R424
KEY_COL1
680
R425
KEY_COL2
680
R426
KEY_COL3
680
R427
KEY_COL4
680
- 94 -
8
9
10
CLR
CLR
1
2
3
LEFT
MENU
SW401
SW402
LEFT
MENU
4
5
6
UP
SEL
SW404
SW405
UP
SEL
7
8
9
RIGHT
SEND
SW407
SW408
RIGHT
SEND
*
0
#
DOWN
CONF
SW409
SHARP
DOWN
CONF
C413
VA403
C415
C416
DNI
ICVN0505X150FR
DNI
DNI
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
A
B
C
D
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