Kenwood TK-3217 Service Manual page 62

P
TX-RX UNIT (X57-7130-21)
TX DRIVE AMP
Q102 R:7.61V
T:1.36V
2SK2596
T:7.26V
L103 L104 C123
8.2n
8.2n
33p(G)
5T
DCSW
APCSW
B
5R
C241 R240
470p 0
RF BPF TUNING
TX_W/N
R354 R355
C354
10k 10k 0.1u
5M
W/N SW/TX
Q301
RT1P141U
R322
180k
LIMLV
R323 56k
C328 390p
R324 100k
RXIN
R329 C329
R325 100k
RXINO
82k 1u
FILTERO
R321
C322 0.015u
EXPOUT
220k
R326 0
RXAFIN
RXAF
R330
3.3k
C331
R331
C325 0.1u
DTRAIN
C326 1000p
0.1u
150k
MIC AGC
DETECTOR ISOLATION
Q302
D303
D302
R318 2SC4919
C317 R328
1.2k
10k
0.1u
RB706F-40 DAN222
R332
15k
AFCONT
OPTDET
RXD/PTT
TXD
PCTV
MIC_MUTE
QT/DQT_IN
PTTSW
SB
Q
SCHEMATIC DIAGRAM / 原理图
Note : The components marked with a dot (
TX FINAL AMP
Q103
2SK3476
L107
R123
1.2n 0
T:2.5V(H)
1.97V(L)
APC PROTECT
R126
2.2k
APC SW
Q104
R130
RT1N141U
150k(D)
Q105
2SK879(Y)F
R131
APC SW
150k(D)
R:7.61V
T:7.39V
R449 C252 C253
R450
0 0 1p(B) 1.5p(B)
D203,204
RF BPF TUNING
R:0.3V(MUTE ON)
7.3V(MUTE OFF)
T:0.3V
C334
0.1u
Q304
2SA1362(GR)
7.52V
DC SW
R334
47k
RT1N441U
C330
1u
C333
0.1u
R
D103,122
ANT SW
D122
HVC131
STRIP LINE
D103
R137 C152
HVC131
0 20p
R135
150k(D)
C140
IC101
TA75W01FUF
100p
1 8 C146
OUT1 VCC
2 7 1000p
IN1-
OUT-B
3 6
IN1+
IN2-
4 5
VEE
IN2+
COMPARATOR
(APC)
R134
150k(D)
L410
Q205
3SK318
R:4.9V
R:4.98V
C259 R249
C266
470p R255
22
470p
0
RF AMP
R:2.046V
R:0.96V
D205,206
RF BPF TUNING
R343
IC302 470k
TA7368F
1 10
1
PoUT
2 9
VCC
PW-GND
3 8
3 PRE-GND
R336
4
7 C338 100p
VIN PHASE
C339
1k R337
5 6
RIPPLE NF
150
10u6.3
AF AMP
C340
R:7.3V(MUTE ON) 0.1u
Q303 0.3V(MUTE OFF)
T:7.3V
RT1N441U
DC SW/SP MUTE DC SW/SP MUTE
R338
R341
R346
R344
L301
S
TK-3217
●
) are parts of layer1.
C160 C163 C166
2p 3p 0.75p
C158 L224 L225 L226
4T
4T 4T
100p
L223 R147 C169
R145
4T
0
0 6p
D104,106
ANT SW
APC SW
Q109
RT1P441U
APC SW
Q108
2SK1824
R141
100k
R142
0
Q107
RT1N141U
APC SW
C269
C272
2p 2p
(B) (B)
C275
3p(B)
SP MUTE SW
Q306
CPH3413 C345
100u6.3
SP MUTE SW
Q316
CPH3413
Q305
R345
2.2k
PTT/RXD
MIC
10k
100
MICIN
OPTDET
5MS
AE
100
TXD
NC
1k
SPO
SPI
T
1
ANT
CN13
2
3
4
5
SP
J301
E11-0457-05
6
MIC1
7
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