LG KP500 - Tri-Axial, Digital Acceleration Sensor Trouble

5.13 Tri-axial, digital acceleration sensor trouble
START
Check TP1 is
high (2.6V)?
Acceleration
sensor operated
Check TP2 is
high?(2.6v)
Change U300 or
Change Main PC
B
Change R500
Yes
No
No
Check All of U302 solder
Yes
Assemble
- 94 -
5. Trouble shooting
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
T
H
REE-
A
X
I
S
A
CCEL
E
R
O
M
ETE
R
V
I
O_2V
62
R
3
1
7
3
9
0
u
1
.
0
043
C
2
2
n
6
K
C
S
ID
S
8
OD
S
7
D
DV
9
2
OID
D
V
C
3
3
9
BM
A1
5
0
EUSY0
3452
0
1
U3
0
2
5
B
S
C
3
DN
G
T
N
I
4
1
2
C
N
1
C
N
0
1
1
1
N
O
T
1
1
2
N
O
T
2
T
N
I_LECC
A
L
C
S
_
F
IC
A
D
S
_
FI
C
U302
TP1
TP2
TP1
TP2