LG KF690 Service Manual page 132

7. CIRCUIT DIAGRAM
1 1 2 2 3 3
A A
LCD FPCB
VREG_MSMP_2.7V
VREG_TOUCH_2.8V
B B
CN102
G2 G1
64 1
SPK_RCV+
63 2
SPK_RCV-
62 3
61 4
60 5
59 6
58 7
57 8
56 9
55 10
54 11
53 12
52 13
51 14
50 15
49 16
48 17
C C
47 18
46 19
45 20
44 21
MOTOR+
43 22
MOTOR-
42 23
41 24
MLED1
40 25
MLED2
39 26
MLED3
38 27
MLED4
37 28
MLED5
36 29
MLED6
35 30
WLED_PWR
34 31
33 32
G4 G3
D D
LCD FPCB TO MAIN PCB
E E
VREG_TOUCH_2.8V
C102 C103
1u 0.1u
A1
A2
A3
B1
TOUCH_PENIRQ_N
F F
B2
B3
X+
Y+
X-
Y-
C104
0.1u
TOUCH SCREEN DRIVER IC
G G
H H
1 1 2 2 3 3
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4 4 5 5 6 6
VREG_MSMP_2.7V
LCD_MAKER_ID
CN100
LCD_IF_MODE
G1 G2
LCD_RESET_N
1 40
LCD_DATA(15)
2 39
LCD_DATA(14)
3 38
LCD_DATA(13) LCD_IF_MODE LCD_MAKER_ID
4 37
LCD_DATA(12)
5 36
LCD_DATA(11) LCD_DATA(15) LCD_RESET_N
6 35
LCD_DATA(10) LCD_DATA(13) LCD_DATA(14)
7 34
LCD_DATA(9) LCD_DATA(11) LCD_DATA(12)
8 33
LCD_DATA(8) LCD_DATA(9) LCD_DATA(10)
9 32
LCD_DATA(7) LCD_DATA(7) LCD_DATA(8)
10 31
LCD_DATA(6) LCD_DATA(5) LCD_DATA(6)
11 30
LCD_DATA(5) LCD_DATA(3) LCD_DATA(4)
12 29
LCD_DATA(4) LCD_DATA(1) LCD_DATA(2)
13 28
LCD_DATA(3) EBI2_OE_N LCD_DATA(0)
14 27
LCD_DATA(2) EBI2_ADDR(11) EBI2_WE_N
15 26
LCD_DATA(1) LCD_VSYNC_OUT LCD_CS_N
16 25
LCD_DATA(0)
17 24
EBI2_OE_N MLED1 WLED_PWR
18 23
EBI2_WE_N MLED3 MLED2
19 22
EBI2_ADDR(11) MLED5 MLED4
20 21
LCD_CS_N MLED6
LCD_VSYNC_OUT
G3 G4
TOUCH_PENIRQ_N
TOUCH_I2C_SCL
TOUCH_I2C_SDA
LCD CONNECTOR
U100 TSC2007IYZGR
C1
AUX SDA TOUCH_I2C_SDA
C2
VDD_REF A1
C3
X+ X-
D1
PENIRQ- SCL TOUCH_I2C_SCL
D2
A0 GND
D3
Y+ Y-
4PIN TOUCH SCREEN CONNECTOR
4 4 5 5 6 6
7 7 8 8 9 9
CN103
1 X-
2 Y-
3 X+
4 Y+
7 7 8 8 9 9
- 133 -
10 10 11 11 12 12
OUT100
SPK_RCV+
C C
SPEAKER PAD
SPK_RCV- OUT101
SPEAKER_RECEIVER +/-
OUT102
MOTOR+
MOTOR PAD
OUT103
MOTOR-
D D
MOTOR +/-
E E
F F
G G
H H
10 10 11 11 12 12
LGE Internal Use Only