Kenwood TK-80 Service Manual page 118

A
TK-80
1
FINAL-CN6
2
FINAL-CN5
3
4
5
8
28AT
24AT
21AT
6
18AT
FINAL
-CN11
14AT
7AT
4AT
GND
1
7
102
X53-363 1/2
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B
KAT-2 (SCHEMATIC DIAGRAM)
AT UNIT (KAT-2) (OPTION) (X53-3630-20) (A/5)
K1
W2
1
AT2
D9
SWITCHING
2
W1
AT1
1
L1
2
CN1
ATD1
L2
CN2
ATD2
D1,2
DETECTION
(X53- ) (B/5)
W101
1
2
W102
1
2
K101
W103
1
24AT
21AT
18AT
28AT
14AT
4AT
7AT
GND
8
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C
L15
100u
4.0V
C4
0.01u
1.5V 2SC2714(Y)
D4
1SS226
Q1
AMPLIFIER
D3 D5
1SS226 1SS226
4.0V
SWITCHING
1.5V
C7
0.01u
2SC2714(Y)
D7
1SS226
R5
Q2
180
AMPLIFIER
D6 D8
R6
1SS226 1SS226
180
SWITCHING
IC6
0.02V NJM2903M
1
2
3
4
COMPARATOR
D101-104
L101
K102
D
R13
100
4.7V
Q1
0.97V
R16
100
Q2
0.81V
4.7V
8
7
4.7V
6
C10
5
1000p
SWITCHING
K103
K104
E
14V
5V
IC1
SN74S74NS
D-FF
0.42V
0.33V
GND
14AT
4AT
7AT
GND