Kyocera FS-1800 - Page 240

A-40
FS-1800/1800N | FS-3800/3800N
Main board (TK-858) 11/12
T1IN
T2IN
T3IN
T4IN
R1OUT
R2OUT
R3OUT
C1+
C1-
C2+
C2-
VCC
TP330
TP331
TP332
TP333
TP334
TP338
GND
R38
(10) FUSED5V
T1OUT
T2OUT
T3OUT
T4OUT
R1IN
R2IN
R3IN
SHDN
/EN
V+
V-
GND
7
6
18
19
5
22
17
10
12
13
14
9
2
3
1
24
4
23
16
21
20
11
15
8
DZ03
UDZ18B
DZ06
UDZ18B
TP337
GND
GND
GND
GND
GND
GND
GND
GND
DZ02
UDZ18B
DZ05
UDZ18B
TP339
GND
DZ04
UDZ18B
DZ07
UDZ18B
+5V
+5V
+5V
+5V
+3.3V
+2.5V
4
1
1
2
2
1
1
2
2
1
1
2
2
5
6
SP01
SHORT PIN
7
8
9
SP01
SHORT PIN
1
2
3
SHORT PIN
(4-5) : 232C/(5-6) : 422A
SP01
(3) RSSEL
TP345
R39 10k
(1-2) : 232C/(2-3) : 422A
12
1SS355
C109
0.1
2
3
1
4
8
7
6
5
A
B
Z
Y
RO
DI
VCC
GND
U19E
MAX488CSA_02
R37
470
R35
470
R36
100/0.5W
Chip R.
C108
0.1
C107
0.1
C105
0.1
C104
0.1
C106
0.1
MAX206CAG
TP341 TP342
TP343
TP344
TP340
TP336
TP335
(7-8) : 232C/(8-9) : 422A
(3) XTXD
(3) XDTR
(3) XRTS
U18
(3) XCTS
(3) XDSR
(3) XRXD
D04
FG
TXD
RXD/RDA
RTS
CTS
DSR
SG
DTR
RDB
SDA
SDB
Fused5V
1
2
3
4
5
6
7
8
9
10
11
12
YC03
CONNECTOR 12PIN
+
+
+
BK1608HS241
GND
GND
+3.3V
+5V
+5V
R42 R220
0.20/2W 0.20/2W
12
D03
1SS355
1SS355
5V - 3.3V
REGULATOR
U20
3
1
2
C110
C112
C111
CHIP EL.
100/16V
CHIP EL.
220/6.3V
AIC1085-3.3CM
VCC
GND
OUT
5V - 2.5V
REGULATOR
U21
3
1
2
VCC
GND
OUT
AIC1085CM
+2.5V
12
D02
R43
1k
R44
1k
C116
C114
CHIP EL.
220/6.3V
0.1
C115
0.1
TP347
TP351
0.1