Kenwood TK-80 Service Manual page 120

AT UNIT (KAT-2) (OPTION) (X53-3630-20) (A/5)
100u
K1
W2
1 AT2
D9
FINAL-CN6
SWITCHING
2
W1
AT1
1
FINAL-CN5
L1
2
CN1
ATD1
L2
CN2
ATD2
R5
180
R6
180
D1,2
DETECTION
(X53- ) (B/5)
W101
1
2
L101
W102
1
2
K101
W103
8 1
24AT
28AT
21AT
24AT
18AT
21AT
28AT
18AT
FINAL
14AT
-CN11 14AT
4AT
7AT
7AT
4AT
GND
GND
1 8
L15
R13
4.0V
100
4.7V
C4
Q1
0.01u
1.5V 2SC2714(Y)
D4
1SS226
0.97V
Q1
AMPLIFIER
D3 D5
1SS226 1SS226
4.0V
SWITCHING R16
100
1.5V
C7
Q2
0.01u
2SC2714(Y)
D7
1SS226
0.81V
Q2
AMPLIFIER
D6 D8
1SS226 1SS226
SWITCHING
IC6
4.7V
0.02V NJM2903M
1 8
7
4.7V
2
6
3
4 5 C10
1000p
COMPARATOR
D101-104
SWITCHING
K103
K102 K104
14V 14V
5V 5V
ANALOG SWITCH
IC1
SN74S74NS
D-FF
1
2
3
4
5
6
0.42V
7
0.33V
GND GND
14AT 14AT
4AT 4AT
7AT 7AT
GND GND
Q3
SWITCHING
IC4
MOTOR DRIVE
BA6109U2
IC2
0V
TC4066BF
0.02V 13.6V 0.09V
14
R34
0
13
12
11
10 0V
9
8
Q3
DTC114EK
R37
0
IC5
MOTOR DRIVE
ANALOG SWITCH
BA6109U2
IC3
0V
TC4066BF
0.02V 13.6V 0.09V
1 14
2 13
3 12
0V
4 11
L6
5 10 0V
100u
6 9
7 8
L5
100u
R38
0
L102 L103 L104 L105 L106
D105-107
SWITCHING
W105
K105 K106 K107
L8 100u
0.02V
L7 100u
4.1V
Q6
DTD143EK
0V
SWITCHING
L3
100u CN3
GND 16
L4
GND
5V
100u
14V
R42
ATI
L13 100u
0
SPED
L12 100u
APRE
L14 100u
ATA
CONTROL
PR11 -CN6
PR12
PR21
PR22
ATG
L11 100u
VREF
L10 100u
POD2
L9 100u
POD1
13.6V
Q4
1
2SA1204(Y)
13.8V
0.11V
13.6V
0V
Q5
DTC114EK
Q4,5
SWITCHING
1 8
CN4
1 2 1 3 1 4
W106 W104
M2 M1
M M
(X53- ) (D/5) (X53- ) (E/5)
(X53- ) (C/5)
GND
GND
5V
14V
ATI
SPED
APRE
ATA
PR11
PR12
PR21
PR22
ATG
VREF
POD2
POD1