87
SCHEMATIC DIAGRAM
TK-80
7
6
5
4
3
2
1
T
S
R
Q
P
X57-466 (TX-RX) 4/4, X45-352 (B/2) 1/1
100
R195
0.01u
C237
47p
C245
R206
100k
C246
220p
4.7k
R207
1k
R208
HSM88AS
D55
220k
R196
10p
C239
2.2k
R197
2SC2712(Y)
Q33
D54
HSM88AS
3p
C240
R200
100k
C241
220p
47u
L77
R199
470
5.6k
R198
47
R175
0.01u
C220
C219
0.01u
(M)
Q30
3SK131
0.01u
C222
470
R178
33k
R177
L75
C225
47p
100k
R176
22k
R180
100
R179
C224
0.01u
RLS135
D33
R181 10k
TH6 5k
VR4
47k
(M)
3SK131
Q31
C238
0.01u
0.01u
C227
C228
0.01u
R183
100k
33k
R182
R184
470
L76
100
R185
R186
10k
C230
0.01u
220
R187
R188
220
0
R210
0.01u
C231
D52
HSM88AS
HSM88AS
D53
Q35
2SC2712(Y)
DTC114EK
Q38
C253
0.01u
R153
2.2k
D56
RLS135
R212
0
Q36
DTC114EK
AMPLIFIER
DETECTION
DETECTION
D52-54
SWITCHING
SWITCHING
Q38
Q30,31
AMPLIFIER
RX IF BUFFER AMPLIFIER
Q33
SWITCHING
100u
L79
C252
0.01u
2.2k
R154
1000p
C404
C233
3900p
0.012u
C234
C232
0.01u
10k
R190
R194
1k
R192
220k
C236
1u
R191
2.2k
C235
3300p
22k
R193
Q32
2SC2712(Y)
220k
R204
C242
0.01u
1k
R205
220k
C244
R203
1u
C243
0.033u
R209
220k
2SC2712(Y)
Q34
2.2k
R202
Q34
AMPLIFIER
Q32
AMPLIFIER
4
5
NJM2594V
1
3
2
8
7
6
IC4
2.2k
R271
0.01u
C297
R272
2.2k
220
R268
0
R270
0.01u
C295
330
R267
220k
R269
TH10
5k
1k
TH8
1k
TH9
10k
TH7
R266 1k
C293 0.01u
22u16
C294
+
2SC2712(Y)
Q51
VR7
10k
220k
R263
10k
VR8
220k
R264
HSM88AS
D63
4.7u25
+
C289
1k
R260
R258
180k
1u
C287
2SC2712(Y)
Q50
C292
0.01u
3.3k
R262
C291
0.01u
5p
C288
0V
6.4V
2.8V
5.6V
2.7V
4.8V
2.7V
0V
C286
1u
R259
100
AMPLIFIER
AMPLIFIER
Q50
PREVENTION
REVERSE-FLOW
CARS
CARS
1
BS1
BS2
PO GND
OUT2
VCC
IN2
NF2
5
DC
2
3
4
9
8
6
7
OUT1
PO GND
10
NF1
11
PIGND
12
IN1
13
100
R278
47u16
C402
+
R407
47k
C312
0.01u
47u16
+
C310
470u16
C313
+
0.01u
C307
100
R406
47u16
C305
+
100u16
C308
+
LA4446
IC7
AUDIO AMPLIFIER
0.1u
C306
330u16
C401
4.7
R401
NC
NC
7
OUT
BAL
NC
VO
L
9
10
8
CL
CH
CLB
6
4
5
18
OUT
RIP
NC
TRB
16
17
15
CL
CLB
CH
21
20
19
TA8184F
GND
1
IN
3
2
VCC
IN
24
23
22
IC6
CH1
CONTROL,BIAS,REF
VOLTAGE
CIRCUIT
BASS/TREBLE
VOLUME/BALANCE
CH1
VOLUME/BALANCE
BASS/TREBLE
CH2
CH2
REF
12
11
LOU
13
14
ELECTRICAL
VOLUME
1u50
C389
+
C399
10u16
C388
+
C386
0.047u
R367
33k
C398
C397
10u16
C391
R368
47k
BAS
LADJ
C396
C394
C395
C393
10u16
C392
+
100
R290
47u16
C390
+
R366
0
4
3
1
6
7
8
2
5
C267 1000p
C266 1000p
C265 1000p
C264 1000p
C263 1000p
D49
1SS355
1
4
3
1SS355
D28
Q81
DTC114EK
Q80
DTA114EK
2
1
47k
R201
47u
L78
ACC2
J2
CAR
CAR
GND
1
2
GND PLL-CN503
CN9
W4
CN10
SP
SPG
SP
2
1
J5
EXT. SP
2
C378
0.01u
0.01u
C379
2
C296
0.01u
R273
100
100u
L53
C130
0.01u
R81
1.2k
100
R265
BALANCED
MODULATION
IC4
D63
3
1
CN11
PH1
PH2
PHG
3
1
100
R801
100
R800
PHONES
LCD ASSY
MIC
MICG
NC
5
MIC
CN12
1
SPO
SPOG
AGND
SPO
SPOG
MICG
BU4066BCFV
6
7
5
4
2
3
1
SWITCHING
IC1
9
8
10
11
12
13
14
CN13
1
AF
AFG
MIC
MICG
4
AFG
MICG
MIC
-CN1
AF
SEL-CALL
(OPTION)
C304
0.1u
R408
4.7
10k
R279
1000p
C314
R235
47k
4.7u50
+
C271
R236
1k
1u50
C272
+
10u16
+
C270
R237
0.22u50
470k
C273
+
4.7u50
C274
+
R239
8.2k
10k
VR6
R238
10k
NJM2904M
4
2
3
1
5
6
7
8
IC2
1
2
C366
1000p
C367
1000p
RBK
RT
K
3
NBS
VO
X
O
7
VO
X
S
SP
5A
8A
4
8F
MIC
TO PLL UNIT
+
R244
100k
TP3
R241
R240
330
0.01u
C275
100k
R242
82k
R243
39k
2
3
6
4
1
5
J1
ACC1
C383 1000p
C382 1000p
C381 1000p
C380 1000p
1000p
1000p
1000p
1000p
1000p
1000p
1000p
IC1
AMPLIFIER
R283
0
1
2
3
4
5
1
3
27k
R405
GND
26
25
SS
23
24
KEY
KYS
21
22
FEN1
UD
A
19
20
UCK
VEN1
17
18
FEN2
FEN3
15
16
VSRM
VSFM
13
14
SM
TXC
11
12
RXC
CKY
9
10
BSY
BZ
7
8
SIDE
VA
F
5
6
AMUT
TXD
3
4
RXD
CTS
1
2
RT
S
DGND
CONTROL-CN4
UD
A
GND
SS
KEY
KYS
FEN1
RXC
UCK
VEN1
FEN2
FEN3
VSRM
VSFM
SM
TXC
CKY
BSY
BZ
SIDE
VA
F
AMUT
TXD
RXD
CTS
RT
S
DGND
5
4
3
2
1
6
7
8
9
11
12
10
14
15
16
17
11
9
R233
0
R245
4.7k
Q46
DTC114EK
SWITCHING
C362
47p
100
R352
3
13
R350
100
47p
C360
1
R354
100
47p
C364
5
R353
100
47p
C363
4
100
R351
2
C361
47p
3
D61
1SS355
1SS355
D60
KEY
C377
1000p
1000p
C376
J6
CN14
0.01u
C290
AGC
TP2
4
C276
0.01u
100
R355
C365
47p
D60,61
PREVENTION
REVERSE-FLOW
SWITCHING
D33
SWITCHING
Q80,81
8A
RBK
14AF
5A
AMB
MIC
BMDI
SSBCW
AM
8F
TXB
SCB
AMB
AGC
RXB
BMDO
TXB
10.695M RX
J800
CN800
TO
D28 SWITCHING
REVERSE-FLOW
PREVENTION
D49
1
IF
GAIN
RXC
-CN2
PKDG
PKD
PKS
ANO
PSQ
GND
RTK
SS
PSQ
RT
S
CTS
RXD
TXD
DGND
14AG
AG
S
+
(X45-352) (B/2)
FINAL UNIT
3
5
3
5
5
5
6
6
7
7
7
7
7
8
8
8
8
8
8
8
8
4.4V
4.2V
7.2V
1.9V
7.0V
1.9V
7.0V
T : 5.2V
R : 0V
1.5V
: 3.8V
SSB. CW
SSB. CW : 6.2V
AM : 6.2V
AM : 3.8V
R : 0V
T : 1.1V
7.6V
3.7V
4.3V
R : 0V
T : 0.4V
R : 0V
T : 3.4V
6.8V
0V
12.8V
11.7V
0V
1.2V
0V
1.1V
11.7V
6.8V
0V
0V
3.8V
0V
0V
0V
3.6V
3.0V
12.8V
3.9V
3.8V
0.4V
2.4V
6.2V
3.1V
0V
4.1V
3.1V
3.9V
3.8V
0V
2.6V
5.0V
2.9V
2.8V
5.0V
2.3V
2.3V
0V
0.3V
KEY UP : 5.0V
KEY DOWN : 0V
TX-RX UNIT (TX-RX SECTION) (X57-4660-21)
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: ......