Kenwood TK-8180H Service Manual page 97

U
TK-8180H/8182H
CN301
DT
E40-6404-05
1 Fin 2
REF
CPGND
4.99V
3 5C 4
5 GND 6
CP
5C
4.99V
X301
L77-1952-05
R362
4.99V
MB VC VCC
0
L301
GND
oUTPUT
2.2u
16.8MHz
PLL F_IN
DOUBLER AMP
Q301
2SC5108(Y)
C308
R371 R369 * R376
0 0
0
AM1
C145
*
RF BPF
TUNING
C156 R108 * C144 D107
0
470p
1SV291
ANT SW
R133
TV
100k
MI2
AFO
ME
90
X57-699 5/10
V
SCHEMATIC DIAGRAM
TX-RX UNIT (X57-6990-XX) (C/3)
R308
PLL CP SW
3.9k IC302
TC7S66FU
5
1
IN/OUT
VCC
R378
2
OUT/IN
10k 4
3
GND
CP * R373 CONT
CPGND
1
2
5C
L305
3
C309
4
C397
Fin
100p
5
12p
GND
REF C396
L304
0.01u
C307 470p
R303
560
4.75V
C317
100p
C395
*
0.31V
* C316 C389 * C391 C393
* * L322
5.6n
C148
C151
1p
1p
RF BPF RF BPF
TUNING TUNING
C147 D108 * C150 D109 C153
* *
1SV291 1SV291
W
4.99V
R319
10
PLL SYSTEM IC
R320
18
4.99V
15 R323
CPGND
MUXOUT
14
R332
AGND LE
13 R330
IC301
AGND DATA
ADF4111BCP7
12 R327
RFinB
CLK
R321
11
RFinA CE
10k
4.99V
A
C302
*
C339
L323 * L324
*
470p
7.90V
C154
*
FRONT-END LNA
C124
* R134
RF BPF
Q103
3.22V
TUNING
2SC3357
0
C119
D110 *
2.46V
1SV291
FL:2.5V
FC:4.0V
FH:5.8V
X
TX-RX UNIT (X57-6990-XX) (B/3)
CN302
E40-6404-05
1k UL
2
1
10 PLE
10 DT
3 4
10 PCK
GND
6
5
DGND
10.36V
C318 C320
* R318
2.2u20 (1/4W)
2.2u20
PLL LPF
* R326
R317
Q302
2SC4116(BL)
0
R307
* R311
Q303
2SC4116(BL)
0
PLL LPF
C130 C134
5p 3p
RF BPF RF BPF RF BPF
TUNING TUNING TUNING
Y
5C
C260
100p
C261
100p
11CL
R333
CV
0
AM1
C138 C142
5p
470p
RF BPF
TUNING
MI2
AFO
ME