Kenwood TK-8180 Series Service Manual page 74

U
TK-8180/8189
DT
CN301
1
REF Fin 2
CPGND
4.99V
3
4
5C
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)
R369 C308 R376
R371
0 0
100p 0
AM1
C145
2p
RF BPF
TUNING
C144 D107
C156 R108
0
470p
8p
1SV291
ANT SW
R133
TV
100k
MI2
AFO
ME
70
X57-699 5/9
V
SCHEMATIC DIAGRAM
TX-RX UNIT (X57-6992-71) (C/3)
R308
PLL CP SW
3.9k
IC302
TC7S66FU
5
1
IN/OUT VCC
R378
2
OUT/IN
10k 4
3
GND CONT
R373
CP
0
1
CPGND
2
L305
5C
3
C309
Fin 4
C397
100p 5
12p
GND
REF C396
L304
0.01u
C307 470p
R303
560
4.75V
C317
100p
C395
2.5p
0.31V
C316 C391
C389 C393 L322
5.6n
100p 2p 1.5p 5p
C148
C151
1p
1p
RF BPF RF BPF
TUNING TUNING
C147 D108 C150 D109 C153
8p
8p 8p
1SV291 1SV291
W
4.99V
R319
10
PLL SYSTEM IC
R320
18
4.99V
15 R323
CPGND
MUXOUT
14 R332
LE
AGND
13 R330
IC301
AGND
DATA
ADF4111BCP7
12 R327
RFinB CLK
11 R321
RFinA CE
10k
4.99V
A
C302
1.5p
C339
L323 L324
3.3n
5.6n
470p
7.90V
C154
2p
FRONT-END LNA
C124
R134
RF BPF
Q103
3.22V
TUNING
2SC3357 0
6p
C119
D110
2.46V
10p
1SV291
FL:2.5V
FC:4.0V
FH:5.8V
X
TX-RX UNIT (X57-6992-71) (B/3)
CN302
1k 1 2
UL
10 PLE
10 3
DT 4
10
PCK
6
GND
5
DGND
10.36V
C318 C320
R318
4.7k
2.2u20
2.2u20
PLL LPF
R317 R326
Q302
2SC4116(BL)
0
330
R307
R311
Q303
2SC4116(BL)
1k
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