LG KC780 Service Manual page 115

8. CIRCUIT DIAGRAM
1 2
B to B Connector(SLIDE TO KEYPCB), SOCKET, 1T, AXK7L54227G
A
KP_IN(5)
KP_IN(6)
KP_OUT(0)
KP_OUT(1)
KP_OUT(2)
KP_OUT(3)
KP_OUT(4)
DIF_CD
DIF_CS
B
DIF_WR
DIF_RD
DIF_VSYNC
DIF_RESET
BL_RESETB
I2C_SDA
I2C_SCL
FLASHCNT
DTX0
DTX1
DTX3
C
D
KP_IN(5:6)
E
KP_OUT(0:4)
F
G
H
1 2
LGE Internal Use Only
3 4 5
VBAT
VIO_2V62 VIO_2V62
CN700
G1 G2
1 54
UPPER_KEY_BL
2 53
3 52
4 51
5 50
DIF_D(0)
6 49
DIF_D(1)
7 48
DIF_D(2)
8 47
DIF_D(3)
9 46
DIF_D(4)
10 45
DIF_D(5)
11 44
DIF_D(6)
12 43
DIF_D(7)
13 42
DIF_D(8)
14 41
DIF_D(9)
15 40
DIF_D(10)
16 39
DIF_D(11)
17 38
DIF_D(12)
18 37
DIF_D(13)
19 36
DIF_D(14)
20 35
DIF_D(15)
21 34
LCD_ID
22 33
END_KEY
23 32
24 31
25 30
26 29
27 28 C700
C701
1u
G3 G4
1u
ICVL0505101V150FR
END
VBAT
END
R702 150
END_KEY
VA713
ICVL0505101V150FR
DOWN CLEAR MENU SELECT OK
R703 680
KP_IN(5)
SEND LEFT RIGHT UP
KP_IN(6)
KP_OUT(0)
R705 680
KP_OUT(1)
R706 680
KP_OUT(2)
R707 680
KP_OUT(3)
R708 680
KP_OUT(4)
R714 12K
UPPER_KEY_BL
3 4 5
6 7 8
37PIN LCD Connector
VIO_2V62 VIO_2V62
LCD_PWM
DTX3
DTX1
DTX0
DIF_VSYNC
DIF_RD
DIF_WR
DIF_CD
DIF_CS
DIF_D(15)
DIF_D(14)
DIF_D(13)
DIF_D(12)
DIF_D(11)
DIF_D(10)
DIF_D(9)
DIF_D(8)
DIF_D(7)
DIF_D(6)
DIF_D(5)
DIF_D(4)
DIF_D(3)
DIF_D(2)
DIF_D(1)
DIF_D(0)
R701
LCD_ID
10K
DIF_RESET
MLED5
MLED4
MLED3
MLED2
MLED1
MLED
EVLC14S02050
EVLC14S02050
VA707 VA709
EVLC14S02050
BACKLIGHT CHARGEPUMP, CAMERA LDO
VBAT
B5
VBATCP
F4
VBAT1
E1
VBATLDO
C704 1u A5
C705 C3P
A4
10u C3N
VIO_2V62 C706 1u B6
C2P
C6
C2N
C707 1u C5
C1P
D6
C1N
E6
VIO
C4
BL_RESETB RESETB
D4
I2C_SDA SDA
D5
I2C_SCL SCL
A3
C708 CPGND
E5
0.1u SGND
B3
LEDGND
VBAT
R709
0
R710
MLED
C710
R711 R712 DNI
1u
47 47
LD700 LD701
R713
SUB_KEY_BL
DNI
3
Q700
2
KTC4075E
1
R715 C711
R716 R717
12K 1u
10 10
6 7 8
- 116 -
9 10 11
CN701
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
LCD_ID
35
36
L SHARP
37
H -
VA710 EVLC14S02050 EVLC14S02050 EVLC14S02050
C702 C703
0.1u DNI VA712
VA711
B4
VOUT MLED
D2
LED1 MLED1
C2
LED2 MLED2
C1
LED3 MLED3
B1
LED4 MLED4
B2
LED5 MLED5
A2
LEDFL SUB_KEY_BL
U700
F5
SBIAS
BD6095GUL F3
SSENS
E4
GC1
E3
GC2
F2
LDO1O
E2
LDO2O
D1
WPWMIN LCD_PWM
D3
FLASHCNT FLASHCNT
TP700
C709
2.2u
9 10 11
LGMC
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
12
A
B
C
D
E
F
G
H
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