UX-B20U/UX-B20C/B25C
6 – 18
[4] Operation Panel PWB circuit
1. Operation Panel PWB circuit
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
SEN0
LD
0
SEN1
LD
1
SEN2
SEN3
SEN4
SEN5
SEN6
LD
2
LD
3
RS
R/W
E
VO
DG
E
DG
OR
G
S
N
S
-
FRSNS-
KEN
1
A
KEN
2
A
KEN
3
A
KEN
4
A
+3.3V
DG
+3.3
V
+3.3
V
16
FRSNS-
14
6
13
KEN1A
3
SEN3
8
9
SEN5
DG
15
4
7
+3.3V
10
1
SEN6
ORGSNS-
KEN2A
SEN1
KEN3A
KEN4A
E
SEN0
CNPN
2
A2001WR2-16PE
(JWT)
SEN2
11
SEN4
12
5
CNPN-5
CNPN-6
CNPN-7
CNPN-8
CNPN-9
N.C
N.C
11
10
12
VO
14
3
LD2
LD1
LD0
13
N.C
LD3
RS
8
N.C
7
4
DG
6
1
2
E
9
R/W
+3.3V
5
CNLCD
CNLCD-11
CNLCD-12
CNLCD-13
CNLCD-14
CNLCD-4
CNLCD-5
CNLCD-6
CNLCD-3
CNLCD-2
CNLCD-1
A
SPEED/DIAL
D6
1N
4148
A
K
START
SW2
FLASH/
INTERCOM
D4
1N
4148
A
K
R4
STOP
R2
SW1
HOLD
R3
N.M.
R1
+
C1
22u/50
V
PL
A
Y
1
S
P
EAKER
2
REC/MEMO
3
F
UNCTI
O
N
D5
1N
4148
A
K
4
RESOLUTION
5
D2
1N
4148
A
K
6
7
INKRESET
C2
220p
D7
1N
4148
A
K
89
*
COPY/HELP
D3
1N
4148
A
K
0
#
UP
R5
6.
2
k
Z
D1
1N
4148
A
K
R6
200
DO
W
N
CNPN-10
CNPN-11
CNPN-12
CNPN-13
CNPN-14
CNPN-15
CNPN-16
CNPN-4
CNPN-3
CNPN-2
CNPN-1
Operation
Panel
PWB
Circuit
Note:
Since
the
parts
of
PWB
cannot
be
supplied,
change
it
as
a
unit.