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7 CIRCUIT OPERATIONS
7.1.
CONNECTION DIAGRAM
CIS
GND
+5V
VO
RS
R/W
E
LCD
D0
D1
(COB)
D2
D3
10
D4
11
D5
12
D6
13
D7
14
CN304
OPERATION
BOARD
POSITION SW
MPOS
GND
CN504
SIG
1
GND
2
+5V
3
4
GND
5
SI
6
GND
7
CLK
8
G. LED
9
V. LED
10
DIGITAL
BOARD
CN506
A
1
B
2
NA
MOTOR
3
NB
4
COM
5
24.576MHz
32.256MHz
CN301
FG
1
1
1
JOG2
2
2
2
JOG1
3
3
3
GND
4
4
4
+5V
5
5
5
KSTART
6
6
6
KLATCH
7
7
7
KSCLK
8
8
8
KTXD
9
9
9
KRXD
10
10
RESET
11
11
CN505
(KX-FPC141 only)
2 1
CN501
BELL
1
T/P
2
DCN
3
CPC
4
MDL SEL
5
LINE RLY
6
BREAK
7
LINE RX
8
MON RX
9
LINE TX
10
CN502
DG
1
AG
2
+5VA
3
+5VD
4
+24V
5
HSRX
6
TONE1
7
HSTX
8
NC
9
CN511
CSI
1
CSO
2
X501
CCLK
3
CBUSY1
4
32.768kHz
CBUSY2
5
CRESET
6
S-ENB
7
CIO
8
CN508
+24V
1
+24V
2
PG
3
PG
4
+5V
5
X502
TM
6
STB1
7
STB2
8
STB3
9
THCLK
10
THLAT
11
THDAT
12
X503
CN509
+24V
1
+24V
2
+24V
3
PG
4
PG
5
DG
6
+5V
7
8
CN512
MIC+
1
MIC-
2
SPEAKER
CN503
SP+
1
SP-
2
CN507
147
CN101
TO TEL LINE
CN103
1
2
3
4
5
6
7
8
9
10
CN102
1
2
3
4
5
6
7
8
9
CN105
1
2
3
4
5
6
7
8
+24V
+24V
GND
GND
+5V
THER
STB1
STB2
STB3
THCLK
THLAT
THDAT
+24V
+24V
+24V
PG
PG
DG
+5V
MIC
(KX-FPC141 only)
KX-FPC135 / KX-FPC141
1
2
3
4
5
THERMAL
6
7
HEAD
8
9
10
11
12
POWER
SUPPLY
BOARD
1
2
3
4
5
6
7
8
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