Kenwood TK-8180 - Manual (Page 69)

65
SCHEMATIC DIAGRAM
TK-8180
AD AC AB AA Z
X57-699 6/9
C384 0.01u C382 0.01u
C185
0.01u
D315 HVC131
D316
HVC131
C385 470p
R367 3.3k
C380 470p
C186
33p
C383 1000p
R365 2.2k
C374 1000p
R254
0
R255
0
R253 10k
R356 10k
R352
10
C255 10u16
C257 1u25
C370 470p
C253 0.01u
C256 0.01u
C381
470p
R251
1k
R252
4.7k
R257 15k C258 4.7u16
D251 1SS388
R256 120k
R258
22
C371 10u6.3
R366 2.2k
R126
0
C176
470p
R172
18
C175
6p
L172
15n
R173
270
L171
15n C181
470p
R171 270 C173 12p
R175
2.2k
C178
470p
C171
6p
1
2
3 4 S2
5
S1
6
G2
C177 470p C182 0.01u
R174 68
L175 R176
47
C184 470p
C183 0.01u
C376 470p
R359 100
C375
27p
R358 8.2k
R360 120 C378 470p
2SC5108(Y)
Q313
R357 10k L319 22n
C377 470p
R361 220
C379
6p
C252
470p
C251 470p
C369
470p
C360
7p
C343
10u10
C342 1000p
C364
0.5p
C355
5p
R351 4.7k
L312 1.0u
C351
0.5p(B)
L326
1.0u
C357 6p
L311 1.0u
R344
47
R345
0
D314
1SV278
C346
22p
R337
10k
D309 BB664
R341 180
C353 470p
C350
8p
L316 1.0u
D313
BB664
L317 1.0u
C365
0.3p
C362 470p
R335
0
C352 12p
R336
1k
R342 180
R343 4.7k
TC301
8p
C363 470p
C347
22p
C361 470p
D308 BB664
D311
BB664
R347
4.7k
C356 0.5p
R340
100
R339
100k
C354
4p
TC302
8p
R334
0
C368 470p
C372
22p
R349 33k L318 22n
R350 33k
R355
56
Q310
DTC114EE
C367 1000p
C373 470p
R353
4.7k
C388 5p C387 5p
L328
22n
R375
330
C594
470p
C325 1000p C334 1000p
R180 820
C187
39p
C196 0.01u
R178
0
C193
0.01u
L182
100n
C198 68p
L180
68n
C201
4p
C192
0.01u
C204
0.01u
C194 0.01u R184
10
C199
39p
L181 10u
C190
39p
L185
68n
R182
3.3k
R183
68
C188
4p
C195 470p
R181
330
C189
4p
C202
39p
C200
4p
C197
0.01u
L178
390n
L179
390n
L183
390n
L184
390n
L177
270n
R179
1k
R177
1k
R315
1k
L119 33n
C358
5p(B)
L310
1u
C359 7p(B)
1
PGND
2
GND
3
FB
4
5
6
L251 10u
L309
1u
T/R
5R 5R
R348
10k
MOD 10CL 5R 8T
C299
0.5p
CV
CV
DC-DC CONVERTER
REVERSE
VOLTAGE
PROTECTION
D315,316
VCO BUFFER
AMP
VCO
BUFFER
AMP
MODULATION
CONTROL
FOR TX VCO
TX/RX
BAND SW
TX/RX
VCO SW D309,313
FREQUENCY
CONTROL FOR
TX/RX VCO
ME
AM1
5C
MI2
AFO
8T
AM1
CV
11CL
FREQUENCY
CONTROL FOR
TX/RX VCO
D308,311
2SK508NV(K52)
Q307
TX/RX VCO
L325
L34-4605-05
12.5n
2SC4116(GR)
Q309
TX/RX
VCO SW
2SC4617(S)
Q312
RIPPLE FILTER
2SC4116(GR)
Q308
TX/RX
VCO SW
2SK508NV(K52)
Q306
TX/RX VCO
IC251
MAX5026EUT+T
SHDN
VCC
LX
2SC4617(S)
Q251
RIPPLE
FILTER
L173
L39-1421-05
G1
D1
D2
L176
L39-1421-05 XF171
L71-0618-05
XF171
L71-0618-05
ME
MI2
AFO
L174
L39-1421-05
L314
L34-4607-05
17.5n
L315 1.0u
2SC5108(Y)
Q311
RX 1ST MIXER
IC171
SPM5001
2SC5108(Y)
Q171
IF AMP
1.02V
T:2.84V
R:2.13V
T:0V
R:2.83V
4.3V
T:3.55V
R:0V
3.86V
3.69V
R:4.88V
T:0V
R:0V
T:2.3V
4.99V
4.97V
4.35V
0.87V
0.07V
4.41V
4.96V
0.84V
3.94V
3.93V
4.50V
0.39V
TX-RX UNIT (X57-6990-10) (B/3)