Kenwood TM-V71A Service Manual page 81

Z
TX-RX UNIT (X57-731X-XX) (A/6): TX-RX SECTION
R229
10k
A BAND VHF
V_A_BPF
SW
D226
HSC277
L227
47n
D227
R226
0
HSC277
C228
SW
3p
R293
10k
B BAND VHF
V_B_BPF
SW
D291
HSC277 L292
47n
D292 R291
0
HSC277
C293
SW
3p
TH103
10k
R360
10k
A BAND UHF
SW
D361
HSC277 L361
12n
D362 R361
0
HSC277
C363
SW
2p
TH102
10k
R405
10k
B BAND UHF
SW
D406
HSC277 L406
12n
D407 R406
0
HSC277
C408
SW
2p
B BAND 1.2G
SW
D456 C450 R696 C470
0.01u 0 0.01u
HSC277
SW
D457 R462
220
HVC131
AA
SCHEMATIC DIAGRAM
R:4.7V
T:0V
L230
560n
R:0.27V
L228
Q226
T:0V
3SK294-FP
47n
C541 C233
MIXER
7p 1000p
C231
4p
R:4.7V
T:0V
L295
470n
L293 R:0.27V
Q291
T:0V
3SK294-FP
47n
C697 C298
MIXER
7p 1000p
C296
4p
U_A_BPF
R:4.7V
T:0V
L364
470n
R:0.25V
L362
T:0V
SW
3SK294-FP
18n
D363 C368
MIXER
470p
HSC277
C366
3p
U_B_BPF
R:4.7V
T:0V
L409
470n
R:0.25V
L407
T:0V
3SK294-FP
18n
D408 C413
MIXER
470p
HSC277
C411
SW
3p
R:4.7V
T:0V
C462
2p
L461
C459 C460 820n Q457
3SK318
2p 100p
MIXER
R:4.3V
T:0V
C469
Q456
100p
2SC5636
R:0.7V
AMP
T:0V
AB
TM-V71A/V71E
R:2.4V
T:0V
C240 R235
1000p 0
C242
1000p
SW
R:2.4V
C243
T:0V
1000p
R:2.4V
T:0V
C306 R300
1000p 0
C308
1000p
SW
R:2.4V
C309
T:0V
1000p
R:1.5V
T:0V
R370 C375 R371
0 12p 0
Q361
VARICAP
VARICAP
R:1.9V
T:0V
R:1.5V
T:0V
R415 C420 R416
0 12p 0
Q406
VARICAP
R:1.9V
VARICAP
T:0V
R:3.62V
T:0V
L626
C480 C472
5p 5.6n 3p
R:2.6V
T:0V
C468
100p
R:0.25V
T:0V
R:1.5V
T:0V
AC
L260
R238 L234
12n 0 330n
C248
1000p
VARICAP
VARICAP SW
C249
1000p
L324
R303 L299
12n 0 330n
C313
1000p
VARICAP
VARICAP SW
C314
1000p
L613 R374 L614
270n 0 270n
VARICAP
VARICAP
L617 R419 L618
270n 0 270n
VARICAP
VARICAP
AMP
IC668 R:4.65V
TA4002F-F
T:0V
3 2
RFoUT +B
R480
100k
4 1 C474 R477
GND RFIN
3p 22
R:0.85V
Q459
T:0V
2SC5066-F(O)
R:4.22V
AMP
T:0V
X57-731 (A/6) 6/8
AD
R242 C256
0 1000p
L259
12n
VARICAP
VARICAP
R307 C321
0 1000p
L323
12n
VARICAP
VARICAP
R377 C381
0 470p
VARICAP
VARICAP
R422 C426
0
470p
VARICAP
VARICAP
R:0.73V
1.2G RX
T:0V
C478 R697
10p 0
81