Kenwood TK-2217 Service Manual page 62

P
TX-RX UNIT (X57-7120-10)
TX DRIVE AMP
Q103
T:1.88V
2SK2596
C110 L104
1000p 27n
5T
DCSW
APCSW
B
RX LO1
5R
BPF
R:4.98V
MIXER
R219 L206 Q204
3SK318
180n
560
R220
C243
560 R:2.48V
1000p
C238
R:0.99V
12p
CN201
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
39k 0.1u
DETECTOR MIC AGC
ISOLATION
Q302
D302 D303
R318
2SC4919
C317 R328
1.2k
10k
0.1u
RB706F-40
MC2858
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
R:7.68V Q106
T:7.30V 2SK2595
L107
R120 C120
27n
1000p
0
T:2.7V(H)
1.99V(L)
APC PROTECT
R126
2.2k
APC SW
Q104
RT1N141U
Q105
2SK879(Y)F
APC SW
R:2.48V
C250 C253
4p(B) 4.5p(B)
C245 R227 R291
0 0
470p
D203,204
RF BPF TUNING
R:0.3V(MUTE ON)
7.3V(MUTE OFF)
T:0.3V
C334
0.1u
Q304
R:7.52V
2SA1362(GR)
T:7.31V
DC SW
R334
47k
RT1N441U
C330
1u
C333
0.1u
R
L113 L114 L115 C144
3T 5T 3T 82p
150k(D)
R135
C140
IC101
TA75W01FUF
100p
1 8
OUT1 VCC
R130 2 7
IN1- OUT-B
150k(D) 3 6
IN1+
IN2-
4 5
VEE
R131 IN2+
150k(D)
COMPARATOR
(APC)
R134
150k(D)
RF AMP
Q205
R:4.8V 3SK318
R:4.92V
R231
C263 R240
R239
47
R:0.75V
47 0
10p
R:1.76V
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
100
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-2217
●
) are parts of layer1.
ANT SW
D103
L117 L118 L119
HVC131
7T 7T 6T
D104 C151 C154
C156 C159
1000p
HVC131 10p 12p 7p
ANT SW
L110 C160
56n
33p
D105-107
ANT SW
APC SW
Q109
RT1P441U
C146
1000p
APC SW
Q108
2SK1824
R141
100k
R142
0
Q107
RT1N141U
APC SW
C267 C268
3p(B)
3p(B)
C271
11p
D205,206
RF BPF TUNING
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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