J
K
L
M
N
O
P
Q
R
S
I
H
G
F
E
D
C
B
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
J72-0381-12
R56
R55
R50
16
1
R143
R53
R41
R45
R59
D2
IC8
R101
R74
R73
R71
R69
R67
R65
R63
R61
R76
26
R20
R21
R107
R106
1
16
R108
R111
R113
R115
R117
R109
R110
R112
R114
R116
R118
R119
R102
R93
R94
R72
R70
R68
R66
R64
R62
C36
C35
R46
D3
IC1
1
34
5
1
34
5
IC2
R36
R35
R57
X1
R150
R48
L2
L6
L5
R79
R78
D17
D16
R2
R1
26
DGND
VA
F
VCL
VSQL
SS
MU
MD
LDA
LCK
PSW
EDP1
EDP2
K0
K1
K2
K3
K4
SO
LBLK
LEN1
14S
8A
5A
5C
DGND
RAF
NC
NC
GND
8A
14S
14V
5A
PSC
BOVR
THP
DGND
UDA
UCK
GEN4
TS
TT
R3
R5
R7
R9
R11
R13
R15
R17
R19
1
1
R4
R6
R8
R10
R12
R14
R16
R18
D18
R146
1
78
14
R51
R52
R54
R80
R81
Q4
Q6
D7
D8
D9
D10
D15
D13
C95
1
15
16
2
DGND
14S
SPED
ATA
PR12
PR22
VREF
POD1
DGND
5A
AT
I
APRE
PR11
PR21
AT
G
POD2
R123
R124
R126
R128
R130
R125
R127
R129
R131
R92
R95
R83
R84
R85
R86
R87
R88
R89
R90
D11
D12
Q3
Q5
R104
R103
L10
BA1
–
+
R77
R60
R42
R75
R133
R132
R142
IC5
1
20
21
40
41
60
61
80
RESET
C34
R58
C33
IC6
1
4
5
8
C94
CN6
R82
R122
R120
R121
IC7
1
11
12
22
23
33
34
44
CN2
12
1
DGND
TOE
Q1
Q2
Q3
Q4
STD
DGND
5A
FSD
FSL
DGND
CN1
DGND
RT
S
CTS
RXD
TXD
AMUT
VA
F
SIDE
BZ
BSY
CKY
RXC
TXC
SM
VSFM
VSRM
FEN2
FEN2
VEN1
UCK
UDA
FEN1
KYS
KEY
SS
GND
GND
ABSL
DEN2
CASL
DEN1
NC
PLS
PEN1
PDA
PCK
ULK
VB3
VB2
VB1
DCL
Y
GND
CN4
CN5
CN3
TK-80
PC BOARD
PC BOARD
TK-80
CONTROL UNIT (X53-3570-21) Component side view (J72-0381-12)
CONTROL UNIT (X53-3570-21) Component side view (J72-0381-12)
Component side
Foil side
Layer 1
Layer 2
Ref. No. Address
IC1
8J
IC2
9J
IC5
6K
IC6
8O
IC7
7P
IC8
7G
Q3
4G
Q4
4H
Ref. No. Address
Q5
4I
Q6
4I
D2
6H
D3
8J
D7
4J
D8
4K
D9
4K
D10
4K
Ref. No. Address
D11
4K
D12
4K
D13
4L
D15
4K
D16
8D
D17
8D
D18
8E
Summary of Contents for TK-80
Page 62: ...TK 80 61 LEVEL DIAGRAM Local Oscillator Section ...
Page 83: ...TK 80 76 INTERCONNECTION DIAGRAM ...
Page 84: ...TK 80 77 INTERCONNECTION DIAGRAM ...
Page 85: ......
Page 103: ...TK 80 90 BLOCK DIAGRAM ...
Page 104: ...TK 80 91 BLOCK DIAGRAM ...
Page 105: ......