FO-IS125N
6 – 21
[4] Operation Panel/Hook Switch PWB circuit
1. Operation Panel/Hook Switch PWB circuit (1/2)
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
6
6
5
5
4
4
3
3
2
2
1
1
DG
DG
+3.3V
+3.3V
ADG
+3.3V
+3.3V
ADG
ADG
KEN0
KEN1
KEN2
/SEN4
/SEN3
/SEN2
/SEN1
/SEN0
ORGSNS
FRSNS
/SEN5
/SEN6
nRHS
TELIN
TELOUT
nRHS
KEN3
TELIN
TELOUT
DECODER
SCAN
TO
HOLDER
SPEAKER
SECURE
Shift
Start
SCANTO
*
74
1
0
Function
UP
2
5
8
DOWN
Reception
#
Resolution
3
6
9
RELEASE
>(right)
E
T
Y
I
SYMBOL
Q
W
R
O
U
D
GH
K
Caps
Lock
A
S
F
L
J
Stop
ORGSNS
FRSNS
<(left)
HOOK DETECT
HOOK
S
W
HANDSET
MJ
PWB
HOLD
SPEED
DIAL
~/^
//\
INFO
DUPLEX
B'CAST
DEL
Space
M
.com
V
;/:
P
X
COPY
@
N
B
REDIAL
C
Caps
Lock
GLOBAL
ADDRESS
SW1
1
2
SW31
C22 N.M.
1
2
SW9
1
2
SW18
1
2
SW64
1
2
SW37
1
2
SW69
1
2
SW21
1
2
SW54
1
2
SW27
1
2
SW62
1
2
SW60
1
2
SW11
1
2
SW6_1
1
2
SW44
1
2
SW17
1
2
SW52
1
2
SW50
1
2
SW22
1
2
SW60_2
1
2
L4
N.M.
(R-5C)
1
2
SW34
1
2
SW68
1
2
L5
N.M.
(R-5C)
1
2
SW42
1
2
SW61
1
2
SW2_1
1
2
SW63
1
2
L2
0
(1608)
1
2
SW24
1
2
SW12
1
2
L3
0
(1608)
1
2
SW32
C6 0.1u
1
2
SW40
1
2
SW21
2
1
4
3
PH2
1S094
1
2
SW65
1
2
SW53
R16
1K(1608)
1
2
L6
N.M.
(R-5C)
1
2
SW14
1
2
SW67_2
1
2
SW59
1 2 3 4 5
CNTEL
A2001WV2-5P
1
2
SW20
C2 N.M.
1
2
SW55
1
2
SW43
1
2
SW7
C3 N.M.
1
2
SW4
1
2
SW49
C4 N.M.
1
2
SW45
1
2
SW33
C1 N.M.
1
2
SW16
1
2
SW39
Y0
1
Y1
2
Y2
3
Y3
4
Y4
5
Y5
6
Y6
7
Y7
9
Y8
10
Y9
11
A
15
B
14
C
13
D
12
VCC
16
GND
8
IC1
HC42(LS145)
R9
100(2125)
1
2
SW35
1
2
SW1_1
1
2
SW23
1
2
SW26
C23 N.M.
C25 0.1u
1
2
SW70
1
2
SW8
1
2
SW29
1
2
SW3_1
R1
10K(1608)
1
2
SW66
1
2
SW25
1
2
SW58
1
2
SW13
1
2
SW10
1
2
SW56
1
2
SW19
1
2
SW30
C5 N.M.(33uF/16V)
+
1
2
SW48
1
2
SW15
1
2
L1
0
(1608)
1
2
SW67_1
R10
120(2125)
1
2
SW1_2
1
2
SW46
1
2
SW5
1
2
SW51
1 2 3 4
CNHJ 4pin
1
2
SW2_2
1
2
SW38
1
2
SW57
1
2
SW3_2
1
2
SW36
1
2
SW41
C24 N.M.
1
2
SW6_2
1
2
SW28
1
2
SW47
C21 N.M.
2
1
4
3
PH1
SG206S
Z
Operation
Panel/Hook
Switch
PWB
Circuit
Note:
Since
the
parts
of
PWB
cannot
be
supplied,
change
it
as
a
unit.
1/2