Kenwood NXR-800 Service Manual Supplement page 108

U
NXR-800
R377
0
OP-AMP
IC33
LMC7101BIM5
1 5
OUTPUT V-
2
V+
3 4
INPUT+
INPUT-
C618
100p
FREQUENCY
CONTROL
D11
KV1470-G
R147
K:4.9V
RF AMP
K2:5.0V
Q22
C274
2SC4617(R)
1.6V
L73
C225
0.047u
0.047u 220n
K:1.1V
K2:1.0V
96
X55-310 5/6
V
SCHEMATIC DIAGRAM
R379
W:2.65V
K
N:2.65V
100
W:2.36V
K2
N:2.36V
CN64
CV2
8.1V
R405
15k
C315
27p
OSCILLATOR
Q24
C277 L93
2SK508NV(K52)
100n
1000p
L87
10u
FREQUENCY
CONTROL
R154 R159 R161
270 0 0 0
L101
1.5u
K:5.1V
6
K2:5.0V
AVDD1
7
AVDD2
L89 L96
C316 8
REFIN
390n 390n
0.047u 9
DGND1
10
DGND2
IC11
ADF4111BCP7
FREQUENCY PLL
W
RIPPLE
FILTER AMP
Q27
R167 2SC4116(BL)F R201
0 33
R183 R193
1k 1k
C331 R184 C361 L115
0 82n
2p 1000p
1.5V
L114 L118 C400
68n 68n
R177
47
C330
1000p
20
CP
19 R194
RSET
4.7k
18 R202
VP
K:5.1V
17 2.2
DVDD2 K2:5.0V
16
DVDD1
R203
100k
2SA1832F
DC SW
X Y
R210
10
R236
18
C408
R223
18
22p
R237
8.9V 18
1.6V
RF AMP
Q33
2SC4725
0.9V
RF AMP
5.0V
Q38
2SC4725
1.6V
22p
0.9V
L121
1.5u
R211
100k
K:2.4mV
K2:1.1mV
Q34
Q37
SSM3K15TE(F)
DC SW
RX UNIT (X55-3100-XX)
C437
1000p