Kenwood TK-7180H Service Manual page 97

U
TK-7180H/7182H
DT CN301
E40-6404-05
Fin
1 REF 2
CPGND
4.99V
3 4
5C
GND
5 6
CP
5C
4.99V
4.99V
X301
L77-1952-05
R362
MB VC
VCC
0
L301
R303
GND oUTPUT
5.6u
16.8MHz
R:4.82V
T:0V
T/R
AM1
C102 C109
R131
0
1000p 16p
TV
MI2
AFO
ME
90
X57-698 5/10
V
SCHEMATIC DIAGRAM
TX-RX UNIT (X57-6980-XX)(C/3)
R308
PLL CP SW
3.9k
IC302
TC7S66FU
1
IN/OUT VCC
R300
2
OUT/IN
10k
3
GND
CONT
CP
CPGND
5C
C309
C397
Fin
1000p
1000p
GND
C396
REF
R304
1000p
47
C307 1000p
Q314 4.36V
DTA144EE
Q305,314
PLL F_IN FILTER
Q305
SW CONTROL
DTC144EE
PLL F_IN
560
DOUBLER AMP
Q301
C316
2SC5108(Y)
1000p
1.14V
C113
C115
10p 18p
C111 L105 L106 R109 R111 C119
39n 27n 0 0
47p 1000p
R132
100k
RF BPF
TUNING
FL:2.1V
FC:3.8V
FH:6.8V
R129
100k
W
4.9V
5 R319
22
PLL SYSTEM IC
R320
4
100
4.90V
1 15
CPGND
MUXOUT
2 14
AGND
LE
3 13
AGND IC301
DATA
ADF4111BCP7
4 12
RFinB
CLK
5 11 R321
RFinA
CE
10k
4.77V
A
D301 C387
C319 C326 D304
L306
68n
MA2S077 1000p 2p(B) 1000p
MA2S077
D301,302
D304,305
PLL F_IN
PLL F_IN
FILTER SW
FILTER SW
D302 C337 C325 C388
D305
L305
68n
3.5p(B)
MA2S077 1000p 1000p MA2S077
7.86V
C120
R117
5.72V
2.2k
1000p
FRONT END LNA
C124
R130
Q103
0.93V
2SC3357
0
7p
0.15V
X
TX-RX UNIT (X57-6980-XX) (B/3)
4.98V
CN302
E40-6404-05
1k UL
R323
2
1
100 PLE
R332
100
R330 DT
4
3
100
R327 PCK
GND
6
5
DGND
C320
C318
R318
2.2u20 2.2u20 1.2k
R317
Q302
2SC4116(BL)
0
R307 R311
Q303
2SC4116(BL)
1k
0
PLL LPF
2SC4116(BL)
PLL LPF
C130 C134
C138
12p
12p 10p
D103-106
RF BPF
TUNING
Y
5C
10.30V
11CL
R326 R333
CV
1.5k
0
PLL LPF
Q304
AM1
C142
33p
MI2
AFO
ME