Kenwood TK-8180 Service Manual page 72

AO
TK-8180
RX-FRONT
(E23-1081-05)
CN100
RX-IF
(E23-1081-05)
CN202
TX-RX UNIT (X57-6990-10)(A/3)
CN701
AUXIO6
1
AUXIO7 2
AUXIO1 3
AUXIO2
4
RXD2
5
AUXIO3 6
TXD2
7
AUXIO4
8
AUXIO8 9
AUXIO5 10
AUXIO9
11
AUXO1
12
TXD1 13
AUXO2 14
RXD1
15
GND
16
ME 17
MI2 18
DEO
19
GND
20
5C 21
DI
22
AFO
23
SB 24
SB 25
SB
26
SB
27
SB 28
SB 29
NC
30
E
68
X57-699 9/9
AP
SCHEMATIC DIAGRAM
Note : The components marked with a dot (
VCO
(E23-1081-05)
CN101 CN102 CN322 CN323 CN326 CN329
TX-MODULE TX-DRIVE
(E23-1081-05) (E23-1081-05)
CN203 CN1 CN2 CN3 CN13
D704-708,711-713
SURGE PROTECT
47k
R701
D704
R706
470
E DA204U
R702 47k
D705
R707
470
E
DA204U
R703 47k
D706
R708
470
E DA204U
47k
R704
D707
R709
470
E DA204U
R705 47k
D708
R710
470
E DA204U
L701
VOLTAGE
PROTECTION
E
L702
E E
VOLTAGE
PROTECTION
D702
1SS355 Q702
2SD2114K(W)
INVERTER SW
E
VOLTAGE
PROTECTION
D703
1SS355
Q701
2SD2114K(W)
INVERTER SW
E
AQ
RX-IF GND
R295
0
R298
0
AVR
(E23-1081-05)
CN815
L409
D
R711 47k
D711
R718
470
E DA204U
E
R712 47k
D712
R719
470
E
E DA204U
E
E
E
R720
E
470
E
R713
47k
D713
E
R717
470
DA204U
E
E
C720
E
100p
E
R714
470
E
D710
02DZ18(X,Y)
VOLTAGE
PROTECTION
R715
E E
470
E E
E
VOLTAGE
PROTECTION
D709
02DZ18(X,Y)
VOLTAGE
PROTECTION
E E R716
470
E E
AR AS
•
) are parts of layer 1.
27 J701
13
25
TTL SPECIFICATION
12
(DEFAULT)
24
AUXI/O6
11
ME
23
AUXI/O7
AUXI/O1
10
GND
22
AUXI/O2
9
RXD2
AUXI/O3
21
TXD2
8
AUXI/O4
20
AUXI/O8
7 AUXI/O5
GND
19
DEO
6
MI2
18 GND
DI
5
AFO
17
AUXI/O9
AUXO1
4
TXD1
16
AUXO2
3
RXD1
SB
15
NC
2
14
1
26
E E
1
2
3
4
5
6
7