LG -C300 Service Manual page 123

7. CIRCUIT DIAGRAM
16 15 14
L
CN401
1
2
3
4
VA417 VA419 VA418
K
KB437 KB436
Q W
KEY_COL0
KB422 KB423
O P
KEY_COL1
J
KB440
J
KEY_COL2
KB412
I
KEY_COL3
V
KB411
KEY_COL4
@
H
KEY_COL5
G
KEY_ROW0
KEY_ROW1
KEY_ROW2
F KEY_ROW3
KEY_ROW4
KEY_ROW5
KEY_ROW6
KEY_ROW7
E
C417
1UF
D
R419 R403
3.3K 3.3K
1
R450 10
2
KEY_SDA
3
4
5
R451 10 6
KEY_INT
7
KEY_SCL
R452 10
C
C434 C435 C436
100pF
100pF 100pF
B
A
16 15 14
LGE Internal Use Only
13 12 11 10
R416 100ohms
KEY_ROW6
R428 100ohms
KEY_ROW7
R429 100ohms
KEY_COL5
KB435 KB430 KB434 KB433 KB432 KB431
E R Y I
T U
KB424 KB425 KB426 KB427 KB428 KB429
S D
F G H
A
KB443 KB442 KB420
KB439 KB444 KB421 KB441
K L Z X C
SHIFT
BACK
KB417
KB413 KB414 KB415 KB416 KB418 KB419
B ENTER LOCK MESSAGE
N M ?(QUES)
KB410 KB409 KB438 KB408 KB403 KB402 KB401
SYM
SPACE ,(COMMA) .(PRIOD) LEFT SOFT RIGHT SOFT SEND
KB445 KB407 KB406 KB405 KB404
UP DOWN
OK LEFT RIGHT
1V8_VDD
R420 C432
1UF
120K
21 R402 100ohms
TEST P40 KEY_ROW0
20 R423 100ohms
KEY_ROW1
SEL_28P P41
19 R424 100ohms
KEY_ROW2
P57 U401 P42
18 R404 100ohms
P56 P43 KEY_ROW3
17 R426 100ohms
P55 P44 KEY_ROW4
16
R412 100ohms
P17 P45 KEY_ROW5
15 R413 100ohms
P15 P46 KEY_ROW6
R414 100ohms
KEY_ROW7
R421 100ohms
KEY_COL0
R422 100ohms
KEY_COL1
R405 100ohms
KEY_COL2
R406 100ohms
KEY_COL3
R425 100ohms
KEY_COL4
R415 100ohms
KEY_COL5
VA403
13 12 11 10
9 8 7 6
VBAT
3
Q401 2
1
LD408 LD402 LD406 LD403 LD407 LD404 LD405 LD409 LD410 LD411 LD414 LD413 LD412 LD401
D401
LCD CONNECTOR
CAM_IO_1V8
VBAT
CAM_D_1V5
LCD_ID
CAM_A_2V8
1V8_HPVDD
6 24
AGND VOUT LCD_DATA04
7 23
VIN LED1 MLED1 LCD_DATA05
8 U402 22
LDOIN LED2 MLED2 LCD_DATA06
9 21
LDO4 LED3 MLED3
LCD_DATA07
10 20
LDO3 LED4 MLED4
11 19
LDO2 LED5
MLED5
12 18
LDO1 LED6
C419
2.2u
1V8_VDD
C420 C433 C421 C422
C401 C402
1u 1u 2.2u 2.2u
1u 1u LCD_VSYNC
I2C_SCL
I2C_SDA
LCD_BL_CTRL
C418 R427
0.1u 100K
CAMERA INTERFACE
C404
5pF
FL402 DNI
1 9
CAM_DATA0 INOUT_A1 INOUT_B1
2 8
CAM_DATA1
INOUT_A2 INOUT_B2
3 7 22 20 R410 22
CAM_DATA2 D0 PCLK
INOUT_A3 INOUT_B3
4 6 23 19
D1 VSYNC
CAM_DATA3 INOUT_A4 INOUT_B4
24 18
D2 HSYNC
1 CN402 12
D3 STANDBY
2 11
D4 SCK
3 10
GND D5 SDA
4 9
D6 RESETB
5 7 R411 51
FL401 D7 MCLK
1 9
CAM_DATA4
INOUT_A1 INOUT_B1
2 8
CAM_DATA5 R409 C411
INOUT_A2 INOUT_B2
3 7 100K 15p
CAM_DATA6 INOUT_A3 INOUT_B3
4 6
CAM_DATA7 INOUT_A4 INOUT_B4
5pF
9 8 7 6
- 124 -
5 4 3 2
SIM_CONNECTOR 1(Default)
2V85_VSIM
2V85_VSIM
R447
KEY_BL_EN
R417 R418
1.2K J401
DNI
4.7K
C431 4 1
GND VCC
0.1u 5 2
VPP RST SIM_RST
6 3
SIM_DATA SIM_CLK
I_O CLK
8 7
GND2 GND1
C416
C413
ZD403 ZD402
22p 0.1u ZD401
C414 C415
DNI 22p
ZD200ZD201 is DNI defaultly
These are added for CMCC ESD test
VMMC 1V8_VDD
VBAT
R446
100ohms
VA415
C429
CN403
0.001uF
1
2
MAKER ID : LOW
3
4 FL405
5
1 9 TP402
6 INOUT_A1 INOUT_B1
2 8
7 INOUT_A2 INOUT_B2
3 7
8 INOUT_A3 INOUT_B3
FL404
4 6
9 INOUT_A4 INOUT_B4
1 9
INOUT_A1 INOUT_B1 10
2 8
INOUT_A2 INOUT_B2 11
3 7
INOUT_A3 INOUT_B3 12
4 6
INOUT_A4 INOUT_B4 13
14
FL403
15
1 9 TP403
16 INOUT_A1 INOUT_B1
2 8
17 INOUT_A2 INOUT_B2
3 7 TP404
18 INOUT_A3 INOUT_B3
4 6 TP405
19 INOUT_A4 INOUT_B4
20
R445
21
100ohms
22
23
VA416 C430 24
0.001uF 25
C428 C427
26
1uF 27pF
27
C425
1uF
C426
2.2u
1V8_VDD
C412
15p
R407
R408
2.2K 2.2K
CAM_PCLK
CAM_VSYNC
CAM_HSYNC
CAM_STANDBY
I2C_SCL
I2C_SDA
CAM_RESET
CAM_MCLK
CAM_IO_1V8
CAM_A_2V8 CAM_D_1V5
C403
DNI
C406 C410
C407 C409 C405 C408
0.1u 56p
0.1u 56p 0.1u 56p
5 4 3 2
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
1
L
K
J
I
_LCD_RESET
H
LCD_DATA00
LCD_DATA01
LCD_DATA02
LCD_DATA03
NLCD_WR
NLCD_MAIN_CS
G
LCD_RS
MLED1
MLED2
MLED3
MLED4
MLED5
F
E
D
C
B
A
1