LG KF750 Service Manual page 199

7. CIRCUIT DIAGRAM
1 1 2 2 3 3
MULTI_KEY
A A
LCD INTERFACE
B B
ICVE10184E150R500FR FL900
9 1
LCD_DATA[0] LCD_DATA[0]_OUT
INOUT_B1 INOUT_A1
8 2
LCD_DATA[1] INOUT_B2 INOUT_A2 LCD_DATA[1]_OUT
7 3
LCD_DATA[2] INOUT_B3 INOUT_A3 LCD_DATA[2]_OUT
6 4
LCD_DATA[3] INOUT_B4 INOUT_A4 LCD_DATA[3]_OUT
ICVE10184E150R500FR FL901
9 1
LCD_DATA[4] LCD_DATA[4]_OUT
INOUT_B1 INOUT_A1
8 2
LCD_DATA[5] INOUT_B2 INOUT_A2 LCD_DATA[5]_OUT
7 3
LCD_DATA[6] INOUT_B3 INOUT_A3 LCD_DATA[6]_OUT
6 4
LCD_DATA[7] INOUT_B4 INOUT_A4 LCD_DATA[7]_OUT
C C
ICVE10184E150R500FR FL902
9 1
LCD_CS_N INOUT_B1 INOUT_A1 LCD_CS_N_OUT
8 2
LCD_ADS_N INOUT_B2 INOUT_A2 LCD_ADS_N_OUT
7 3
LCD_WE_N INOUT_B3 INOUT_A3 LCD_WE_N_OUT
6 4
LCD_RESET_N INOUT_B4 INOUT_A4 LCD_RESET_N_OUT
D D
E E
From Slide FPCB CN1005
44PIN_CONNECTOR_Female_1T
CN902
1 44
TOUCH_SCREEN_SCL TOUCH_RST
2 43
TOUCH_SCREEN_SDA VREG_6.1V
F F 3 42
TOUCH_SCREEN_INT
4 41
TOUCH_3.1V
5 40
6 39
TOUCH_BUTTON_SDA KEYOUT1
7 38
TOUCH_BUTTON_SCL KEYOUT2
8 37
KEYIN4
9 36
LCD_DATA[0] KEYIN5
10 35
LCD_DATA[1] ONSWA_n
11 34
LCD_DATA[2]
12 33
LCD_DATA[3] LCD_RD_N
13 32
LCD_DATA[4] LCD_VSYNC
14 31
LCD_DATA[5] LCD_RESET_N
15 30
LCD_DATA[6] LCD_WE_N
16 29
LCD_DATA[7] LCD_CS_N
17 28
APP_GP12_LCD_ID LCD_ADS_N
18 27
VDDE_1V8 WLED1
19 26
WLED_PWR WLED2
20 25
WLED5
21 24
WLED4 LCD_PWM
22 23
WLED3
G G
H H
1 1 2 3 3
LGE Internal Use Only
4 4 5 5 6
LCD LDO
VDDE_1V8
VDD_LCD_2.6V
C900 C901
0.1u 0.1u
CN900
1
2
LCD_PWM 3
4
5
6
LCD_VSYNC 7
LCD_RD_N 8
LCD_WE_N_OUT 9
LCD_ADS_N_OUT 10
LCD_CS_N_OUT 11
12
13
14
15
16
17
18
19
LCD_DATA[7]_OUT 20
LCD_DATA[6]_OUT 21
LCD_DATA[5]_OUT 22
LCD_DATA[4]_OUT 23
LCD_DATA[3]_OUT 24
LCD_DATA[2]_OUT 25
LCD_DATA[1]_OUT 26
LCD_DATA[0]_OUT 27
R904 51K
APP_GP12_LCD_ID 28
29
30
LCD_RESET_N_OUT 31
WLED5 32
WLED4 33
WLED3 34
WLED2 35
WLED1 36
WLED_PWR 37
MULTI EL
VREG_6.1V
C902
2.2u
TOUCH_3.1V
TOUCH_3.1V
D1 D2 D3 D4
TP103 TP109
EL DWONLOAD TP105
TP106 TP107
& TEST POINT
TP108
G
TP908 TP111 TP112
VREG_6.1V
R912
100K
TP902
HV_OUT_PAD& BP_PAD SIZE
1.7X1.4mm
1 24
P0_1 P0_0
2 23
P2_7 P2_6
3 22
P2_5 U901 P2_4
4 21
P2_3 CY8C21434 P2_2
5 20
P2_1 P2_0
6 19
P3_3 P3_2
7 18
P3_1 P3_0
8 17
P1_7 XREX
4 5 5 6 6
- 200 -
7 8 8 9 9
SEND OK
KEYOUT1
KEYOUT2
KEYIN4 ONSWA_n
KEYIN5
KEYOUT1
CLR
D900
KEYOUT2 ONSWA_n
RB521S-30
KEYIN4
KEYIN5
VDDE_1V8
10K R900
10K R901
L900
100uH
D901
RF051VA2S
D5
Q900
SIA450DJ
C903
470pF
S1 S2
C905 C906
150p 0.1u
U900
HV509
TOUCH_3.1V
33 28
SLUG BP
25 27
NC5 HVGND
23
NC4
18 29 TP903
NC3 HVOUT16
BP
16 30
NC2 HVOUT15
13 31
NC1 HVOUT14 HV_OUT_14
32
HV_OUT_13
HVOUT13
21 1
_POL HVOUT12 HV_OUT_12
22 2
_LE HVOUT11 HV_OUT_11
15 3
GND HVOUT10 HV_OUT_10
4
HVOUT9 HV_OUT_9
24
5
TOUCH_RST DOUT HVOUT8 HV_OUT_8
6
HVOUT7 HV_OUT_7
7
HVOUT6 HV_OUT_6
TP905 8
HVOUT5 HV_OUT_5
TP906 9
HVOUT4 HV_OUT_4
TP907 10
HVOUT3 HV_OUT_3
19
11
CLK HVOUT2 HV_OUT_2
12
TOUCH_BUTTON_SCL HVOUT1
17
TOUCH_BUTTON_SDA DIN
14
ISSP 20 VPP
26
TOUCH_SCREEN_SCL VDD VBIAS
TOUCH_SCREEN_SDA
I2C
C907
0.1u
7 8 8 9
10 10 11 11 12 12
END
VA900
ICVS0514X350FR
ON_SW KEY
TOUCH_CONNECTOR
TOUCH_3.1V
CN901
17 18
1 14
2 13
3 12
TOUCH_SCREEN_INT
4 11
TOUCH_SCREEN_SCL
5 10
TOUCH_SCREEN_SDA
6 9
7 8
15 16
10 10 11 11 12 12
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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D D
E E
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