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Flow Chart of Troubleshooting
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9-13
9-7. Key Data Input
R
O
T
C
E
N
N
O
C
Y
E
K
Y
E
K
E
M
U
L
O
V
1
0
5
D
2
0
5
D
1
00
5
V
50
1
V
50
0
1
00
5
3
0
5
D
0
0
5
C
6
0
5
R
5
0
5
R
3 3
4 4
0
0
5
K
V
1
1
2 2
4
5
5
6
6
7 7
8 8
9
9
5
1
5
1
6
1
6
1
7
1
7
1
8
1
8
1
9
1
9
1
2
2
0
2
0
2
3 3
4
0
0
5
C
D
H
1
1
0
1
0
1
1
1
1
1
2
1
2
1
3
1
3
1
4
1
4
1
T
H
G
I
L
_
Y
E
K
_
V
2
.
3
4
0
5
D
0
0
5
D
1
6
5
4
3
)
0
(
W
O
R
_
Y
E
K
)
2
(
W
O
R
_
Y
E
K
)
4
(
W
O
R
_
Y
E
K
)
3
(
L
O
C
_
Y
E
K
)
0
(
L
O
C
_
Y
E
K
)
1
(
L
O
C
_
Y
E
K
)
2
(
L
O
C
_
Y
E
K
Y
E
K
N
O
P
)
2
(
W
O
R
_
Y
E
K
)
4
(
L
O
C
_
Y
E
K
N
_
N
I
_
C
I
M
P
_
N
I
_
C
I
M
)
3
(
L
O
C
_
Y
E
K
)
0
(
W
O
R
_
Y
E
K
)
1
(
W
O
R
_
Y
E
K
)
3
(
W
O
R
_
Y
E
K
Check Initial Operation
Yes
When one of the keys is
pushed,
is it displayed on LCD?
Check the Dome sheet & Key Pad
No
Yes
When one of the keys is
pushed,
KBIO signal is OK?
Replace the Key PBA
No
Yes
END