3. TROUBLE SHOOTING
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Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
VREG_L6_1V8
R2205
3.3K
3.3K
R2206
TOUCH_I2C_SCL
TOUCH_I2C_SDA
TP4
TP3
VREG_L28_2V95
VREG_L6_1V8
10K
R7202
10
K
R7200
VREG_L6_1V8
1u
C7202
1u
C7201
U7200
EAN62953601
ATMXT336S-MAUR
28
27
26
25
24
23
22
21
20
19
18
17
16
14
13
10
7
6
4
3
1
43
44
45
46
47
48
49
50
51
52
53
54
55
56
X22
X21
X20
X19
X18
X17
X16
X15
X14
X13
X12
EXTCAP
XVDD
AVDD2
X23
VDD1
RESET
SDA
SCL
VDD2
ADDSEL
CHG
X0
X1
X2
X3
X4
X5
X6
X7
X8
X9
X10
X11
AVDD1
22n
C7200
1u
C7203
TOUCH_I2C_SCL
TOUCH_I2C_SDA
TX18
TX17
TX16
TX2
TX13
TX14
TX15
TX8
TX6
TX4
TX12
TX10
TX21
TX1
TX0
TX19
TX20
TX3
TX5
TX7
TX9
TX11
TOUCH_ATTN
TOUCH_RESET_N
C7201 /C7203
should be <5 mm length
TP1
TP2