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LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
TOUCH WINDOW LDO
STBY
1
VIN
3
VOUT
4
BH28PB1WHFV
U505
6
BGND
2
GND
SEL
5
VREG_LDO_TOUCH_2.8V
C518
470n
470n
C517
+VPWR
TOUCH_LDO_EN
12/25
2.2K
R304
VREG_LDO_TOUCH_2.8V
0
R300
2.2K
R305
VREG_MSMP_2.7V
G4
56
57
58
59
6
60
61
62
63
64
7
8
9
G1
G2
G3
42
43
44
45
46
47
48
49
5
50
51
52
53
54
55
28
29
3
30
31
32
33
34
35
36
37
38
39
4
40
41
12
13
14
15
16
17
18
19
2
20
21
22
23
24
25
26
27
CN300
1
10
11
LCD_FPCB_DET
TOUCH_PENIRQ_N
TOUCH_I2C_SDA
LCD_DATA(2)
EBI2_ADDR(11)
LCD_CS_N
EBI2_WE_N
LCD_VSYNC_OUT
LCD_IF_MODE
LCD_RESET_N
LCD_DATA(15)
LCD_DATA(14)
LCD_DATA(13)
LCD_DATA(12)
LCD_DATA(11)
LCD_DATA(10)
LCD_DATA(9)
LCD_DATA(8)
LCD_DATA(7)
LCD_DATA(6)
LCD_DATA(5)
LCD_DATA(4)
LCD_DATA(3)
TOUCH_I2C_SCL
EBI2_OE_N
LCD_DATA(0)
LCD_DATA(1)
TOUCH SCREEN DRIVER IC
EVLC14S02050
VA102
VREG_TOUCH_2.8V
EVLC14S02050
VA100
VA101
EVLC14S02050
0.1u
VA103
E
VLC14S02050
C103
SCL
C1
SDA
VDD_REF
A2
A3
X+
C3
X-
B3
Y+
D3
Y-
TSC2007IYZGR
U100
B2
A0
A1
C2
A1
AUX
GND
D2
PENIRQ-
B1
D1
0.1u
C104
1u
C102
TOUCH_PENIRQ_N
X+
Y-
X-
Y+
TOUCH_I2C_SCL
TOUCH_I2C_SDA
[Fig. 4.7] Schematic of TOUCH part
R304 (TOUCH_12C_SCL)&
R305 (TOUCH_12C_SDA)
C102 (VREG_LDO_TOUCH_2.8V)
C104 (TOUCH_PENIRQ_N)
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