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4. TROUBLE SHOOTING
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
TOUCH WINDOW LDO
VREG_LDO_TOUCH_2.8V
C518
470n
U505
BH28PB1WHFV
BGND
6
GND
2
5
SEL
1
STBY
3
VIN
4
VOUT
470n
C517
+VPWR
TOUCH_LDO_EN
12/25
2.2K
R304
0
R300
VREG_LDO_TOUCH_2.8V
2.2K
R305
VREG_MSMP_2.7V
8
9
G1
G2
G3
G4
51
52
53
54
55
56
57
58
59
6
60
61
62
63
64
7
37
38
39
4
40
41
42
43
44
45
46
47
48
49
5
50
22
23
24
25
26
27
28
29
3
30
31
32
33
34
35
36
1
10
11
12
13
14
15
16
17
18
19
2
20
21
CN300
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
C104
0.1u
EVLC14S02050
VA101
VA102
EVLC14S02050
VA100
EVLC14S02050
VREG_TOUCH_2.8V
0.1u
C103
Y-
D3
A0
B2
C2
A1
AUX
A1
D2
GND
B1
PENIRQ-
SCL
D1
SDA
C1
A2
VDD_REF
X+
A3
X-
C3
Y+
B3
U100
TSC2007IYZGR
EVLC14S02050
VA103
1u
C102
TOUCH_PENIRQ_N
X+
Y-
X-
Y+
TOUCH_I2C_SCL
TOUCH_I2C_SDA
[Fig. 4.9] Schematic of TOUCH part
R304 (TOUCH_12C_SCL)&
R305 (TOUCH_12C_SDA)
C102 (VREG_LDO_TOUCH_2.8V)
C104 (TOUCH_PENIRQ_N)
Содержание KF700
Страница 1: ...Service Manual Model KF700 Service Manual KF700 Date May 2008 Issue 1 1 Internal Use Only ...
Страница 157: ... 158 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 167: ... 168 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 193: ...Note ...
Страница 194: ...Note ...