LG KE990 Service Manual - Page 158

White, On_sw Key, Green, Key Pcb Backlight Leds

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7. CIRCUIT DIAGRAM 1 2 LCD_VDD_2.8V A C700 1u C701 0.1u TOUCH_PENIRQ_N B X+ Y+ XY- R700 0 NA R702 3 4 2.7K R703 2.7K R704 U700 TSC2007IYZGR A1 AUX A2 A3 VDD_REF B1 X+ B2 PENIRQB3 A0 Y+ SDA C1 C2 A1 C3 X- D1 SCL D2 GND D3 Y- TOUCH_I2C_SDA TOUCH_I2C_SCL EVLC14S02050 EVLC14S02050 EVLC14S02050 EVLC14S02050 VA709 VA710 VA711 VA712 C TOUCH SCREEN DRIVER IC Touch Driver IC change : TSC2003 -> TSC2007 5 6 7 8 9 10 VREG_MSMP_2.7V R705 51K R706 51K CN700 1 2 3 4 5 R707 470 R708 470 R709 470 R710 470 KEY_ROW[0] KEY_ROW[1] KEY_COL[0] KEY_COL[1] PM_ON_SW_N END END EVL14K02200 VA700 EVLC14S02050 EVLC14S02050 EVLC14S02050 EVLC14S02050 VA704 VA705 VA706 VA707 SIDE KEY ON_SW KEY VREG_MSMP_2.7V KEY_ROW[2] KEY_COL[0] KEY_COL[1] R701 51K 700 701 SEND CLR EVLC14S02050 EVLC14S02050 EVLC14S02050 VA701 VA702 VA703 KEY LD705 47 LEGG-S14G LD702 47 LEGG-S14G LD704 47 SSC-TWH104-HL 11 12 +VPWR LD703 200 SSC-FR104-II1 LD701 200 SSC-FR104-II1 SSC-TWH104-HL LD700 R711 47 R714 R712 R716 R713 R715 Rev. 1.1 KYPD_LED_EN VA708 EVL14K02200 (GREEN) (WHITE) (RED) PQ KEY PCB BACKLIGHT LEDs C D D CN701 1 30 2 29 3 28 4 27 +VPWR MMP_VDD_CORE_1.0V CAM_VDD_CORE_1.2V 5 26 6 25 7 24 8 23 L700 4.7uH 9 22 U701 AAT2510IWP-AA-T1 E 10 21 12 VIN1 LX1 11 C702 100p E 11 20 MOTOR+ MOTOR- RCV+ 12 19 13 18 14 17 15 16 x+ C703 9 VIN2 2 FB1 R726 39K Y+ 4.7u x- 1 8 L701 4.7uH RCV- Y- MMP_PWR_EN EN1 LX2 MMP_CAM_PWR_EN 4 EN2 FB2 5 C704 100p R728 56K 2.2u 4.7u 2.2u 4.7u R730 56K R731 56K BGND PGND1 PGND2 GND1 GND2 C708 C707 C706 C705 10 13 7 3 6 F F G G H H 1 2 3 4 5 6 7 8 9 10 11 12 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes - 159 - LGE Internal Use Only

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- 159 -
Rev. 1.1
(WHITE)
(RED)
PQ
6
Touch Driver IC change : TSC2003 -> TSC2007
4
9
8
B
G
H
5
7
7
A
9
8
CLR
G
11
SEND
6
7
10
3
9
C
1
3
B
1
4
ON_SW KEY
11
(GREEN)
E
12
11
KEY
10
5
8
D
H
F
C
H
7
3
1
E
G
E
9
12
SIDE KEY
F
C
1
5
D
12
D
6
H
6
E
KEY PCB BACKLIGHT LEDs
G
D
2
4
2
3
C
5
12
2
TOUCH SCREEN DRIVER IC
F
8
4
A
10
F
10
11
END
2
VA711
EVLC14S02050
100p
C702
200
VREG_MSMP_2.7V
C704
R714
701
100p
VA709
EVLC14S02050
R705
51K
LD700
SSC-TWH104-HL
47
R713
C703
4.7u
LEGG-S14G
LD702
R702
NA
SSC-TWH104-HL
56K
R728
R700
0
LD704
SSC-FR104-II1
LD701
R706
51K
L700
4.7uH
700
C701
CAM_VDD_CORE_1.2V
SSC-FR104-II1
LD703
0.1u
EVLC14S02050
VA712
4.7u
R730
56K
51K
C705
R701
EVLC14S02050
VA701
4.7uH
L701
1u
C700
2.7K
R703
R726
39K
LCD_VDD_2.8V
470
R707
470
R710
R709
470
25
26
27
28
29
30
17
18
19
20
21
22
23
24
1
10
11
12
13
14
15
2
3
4
5
6
7
8
9
16
CN701
EVLC14S02050
VA704
R711
47
EVLC14S02050
C706
2.2u
VA702
EVLC14S02050
VA707
EVLC14S02050
VA706
R704
2.7K
+VPWR
MMP_VDD_CORE_1.0V
2.2u
C708
LEGG-S14G
LD705
R716
47
D3
EVLC14S02050
VA710
A0
B2
C2
A1
AUX
A1
D2
GND
B1
PENIRQ-
SCL
D1
SDA
C1
A2
VDD_REF
X+
A3
X-
C3
Y+
B3
Y-
EVLC14S02050
U700
TSC2007IYZGR
END
VA705
47
R715
200
+VPWR
R712
VA700
EVL14K02200
VA708
EVL14K02200
1
2
3
4
5
5
FB2
3
GND1
GND2
6
11
LX1
LX2
8
7
PGND1
PGND2
10
VIN1
12
VIN2
9
CN700
U701
AAT2510IWP-AA-T1
BGND
13
1
EN1
EN2
4
FB1
2
56K
R731
C707
4.7u
VA703
EVLC14S02050
KEY_ROW[0]
KEY_ROW[1]
KEY_COL[1]
KEY_COL[0]
KYPD_LED_EN
R708
470
KEY_ROW[2]
PM_ON_SW_N
VREG_MSMP_2.7V
KEY_COL[0]
KEY_COL[1]
TOUCH_PENIRQ_N
TOUCH_I2C_SCL
TOUCH_I2C_SDA
RCV+
RCV-
MOTOR+
MOTOR-
x+
x-
Y+
Y-
MMP_CAM_PWR_EN
MMP_PWR_EN
Y-
Y+
X+
X-
7. CIRCUIT DIAGRAM
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc.
All right reserved.
Only for training and service purposes