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Flow Chart of Troubleshooting
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9-15
9-7. Key Data Input
>
Y
E
K
e
m
u
l
o
V
<
>
Y
E
K
B
U
S
<
>
Y
E
K
e
d
o
M
&
a
r
e
m
a
C
<
Z
D
5
04
Z
D
5
00
D
N
E
S
2
1
2
2
3
3
4
4
0
0
5
C
P
F
1
1
D
N
E
2
1
1
0
5
C
P
F
1
1
2
2
3
3
4
4
K
O
2
1
Z
D
5
0
3
)
1
(
L
O
C
_
Y
E
K
)
0
(
L
O
C
_
Y
E
K
)
1
(
L
O
C
_
Y
E
K
)
2
(
W
O
R
_
Y
E
K
Y
E
K
N
O
P
)
0
(
L
O
C
_
Y
E
K
)
1
(
W
O
R
_
Y
E
K
)
1
(
L
O
C
_
Y
E
K
)
0
(
W
O
R
_
Y
E
K
)
0
(
L
O
C
_
Y
E
K
Check Initial Operation
Yes
When one of the keys is
pushed,
is it displayed on LCD?
Check the Dome sheet & FPCB KEY
No
Yes
When one of the keys is
pushed,
KBIO signal is OK?
Replace the FPCB key Resolder
No
Yes
END
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