Kenwood NXR-800 Service Manual Supplement page 104

A
NXR-800
RX UNIT(X55-3100-XX)
1
W:-93.2dBm W:-90dBm
K K2
N:-92.3dBm N:-90.5dBm
CN41 MONITOR_PORT
W:-117.8dBm W:-116.7dBm
K K2
N:-116.6dBm N:-117.2dBm
*
L132
C7
CN5
1
470p
4
RX_SIGNAL
2
*
R450
*
R451
K:-3.0V
K2:0.7V
3
CN36
FINAL UNIT(N-DC)
(X45-3820-XX)(D/5)
CN701
C701
1u
4
C702
470p
C703
470p
C704
10u25
C705
1u
5
VOLTAGE
REGULATOR
IC701
NJM78L05UA-ZB
3 1
IN oUT
GND
2
6
7
92
X45-382 (D/5) 1/1, X55-310 1/6
B
SCHEMATIC DIAGRAM
K:1.0V
K2:3.5V
*
L133
*
C659 C10
R410 L5
5 1 5
0 8n
100p
8 4 8
C14
470p
C15
0.1u
D1
HSC119
D1
SURGE
PROTECTION
9.0V
CN6
C718
470p
C717
470p
C716
0.1u
C715
33u16
VOLTAGE
REGULATOR
IC703
TK72130CS
C714
0.1u
C713
0.1u
C712
33u16
L702
47u
IC702
LTC1046IS8
C711
DC/DC
CONVERTER
10u16
X55-3100-XX
-10
-11
C
K:8.5V
K2:8.6V
LNA
*
R8
Q1
*
2SC5337
L134
K:0.2V
*
C55
R407
1 5
K2:2.8V
0
4 8
C17 C24 C34
470p 470p
470p
C18 C26 C35 C47
C68
470p 470p
0.1u 470p
C27 C36 C48 R30
1000p 0.1u
1000p
IC4
OP-AMP
TA75S01F-F
R4
R19 3
120
IN(-)
VE
CN40
100k 2
VEE
C19
R20 1
IN(+)
470p
D2
100k
D2
SURGE
PROTECTION
C66
HSC119
C69
E3
F10-3080-04
C157 C169 L54 RF AMP
Q18
10n
470p 15p
RD01MUS1
C232
47p
C295
K:1.6V
5.0V
1000p
K2:1.5V
C237
RF AMP
1000p C273 R156
Q21
22p 68
2SC4725
0.9V
C291
0.047u
C303
0.047u
C292
10u35
L132 L133 L134 L135
K L79-1849-05 L79-1849-05 L79-1849-05 L79-1849-05
K2 L79-1852-05 L79-1852-05 L79-1852-05 L79-1852-05
D
E1
F10-2379-04
*
L135
C624
R39 R54
1 5
0 0
100p MIX
4 8
A1
W02-1940-05
4 5 6
100p 3 2 1
680k
R50
18
4
oUT
5
VCC
L31 L36
15n 15n
0.1u
470p
C249
RF AMP
Q23
7p
2SC3356-A(R24)
L76 C285
10n
470p
1/2 DIVIDER
IC9
C520
UPB1509GV
1 8 0.01u
1.6V
VCC1 VCC2
C298
2 7 C329 C580
IN OUT
1000p
3 6 0.01u 0.01u
IN SW2
4 5
GND SW1
VOLTAGE
REGULATOR
IC10
TK11230CMCL-G
6 VIN 1
VCoNT
5 GND2 2
GND1
R403 4 VoUT 3 C332
NoISEPASS
0 0.1u
3V
R8 R362 R450 R451 C10 C12 C55
10 180 0 NO 8p 10p 8p
4.7 100 NO 0 7p 6p(B) 8p(B)
E
E2
F10-2409-04
L32 C117
82n
120p
L39
R81
15n 0
L92
R417
10n 0
5.0V
RF AMP
Q53
2SC4725
0.9V