Kenwood NXR-700 Service Manual page 108

A
NXR-700
RX UNIT(X55-3090-XX)
1
W:-87dBm
K K2
N:-87.5dBm
CN41 MONITOR_PORT
W:-117.5dBm
K
N:-118dBm
W:-118.3dBm
K2
N:-118.8dBm
CN5
RX_SIGNAL
2
*
R450
*
R451
-3V
3
CN36
FINAL UNIT(N-DC)
(X45-3810-XX)(D/5)
C701
1u
4
C702
1000p
C703
1000p
C704
10u25
C705
1u
5
VOLTAGE
REGULATOR
IC701
NJM78L05UA-ZB
3 1
IN oUT
GND
2
6
X55-3090-XX L31 L36 L39 L76
-10 K 33n 33n 33n 39n
-11 K2 39n 39n 39n 47n
7
X55-3090-XX R8 R48 R50 R55
-10 K 0 220 22 220
-11 K2 22 270 18 270
96
X45-381 (D/5) 1/1, X55-309 1/6
B
SCHEMATIC DIAGRAM
W:-88dBm
N:-88.5dBm
* * *
C635 C636 C637 C638 C639 C640
0.75p 0.75p 0.75p
C10
22n
1000p
C14
1000p
C15
0.1u
HSC119
D1
SURGE
PROTECTION
9.0V
CN6
CN701
C718
1000p
C717
1000p
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
L80 L92 L132 L133
39n 39n L34-4614-05 (8T) L34-4614-05 (8T) L34-4614-05 (8T)
47n 10n L34-4615-05 (9T) L34-4615-05 (9T) L34-4615-05 (9T)
R362 R450 R451 C12 C103 C137 C232 C285
180 0 NO 8p 12p 12p 100p 47p
100 NO 0 6p 15p 15p 39p 12p
C
0.75p
K:8.7V
K2:8.5V
LNA
*
K:1.0V R8
Q1
K2:3.5V
2SC5337
K:0.2V
L5 C55
K2:2.8V
12p
C17 C26 C35 C47
1000p 470p 470p 1000p
C18 C27 C36 C48
D1
0.1u
0.1u 1000p 1000p
R4
R19
120
VE 100k
CN40
R20
C19
100k
1000p
D2
D2
SURGE
PROTECTION
HSC119
E3
F10-3080-04
L54
RF AMP
C157 C169
Q18
10n
1000p 27p
RD01MUS1
5V
1.6V
C237
RF AMP
1000p C273
Q21
22p
2SC4725
K:1.0V
K2:0.9V
C291
0.047u
C303
0.047u
C292
10u35
L134 L135 L136
L34-4614-05 (8T) L34-4614-05 (8T)
L34-4615-05 (9T) L34-4615-05 (9T)
C624 C625 C626 C627 C628 C629 C631 C632
39p 5p 5p 6p 39p 6p 5p 5p
27p 4p 4p 5p 27p 5p 4p 4p
D
* * *
C641 C642 C643 C644 C645 C646
0.75p 0.75p
C647
1000p
C68 100p
R30 680k
OP-AMP
IC4
TA75S01F-F
3 4
IN(-) oUT
2
VEE
1 5
IN(+) VCC
* *
L31 L36
C66 0.1u
C69 1000p
C249
RF AMP
15p Q23
2SC3356-A(R24)
*
*
L76
C232
1/2 DIVIDER
IC9
C295
C520
UPB1509GV
1 8 0.01u
1000p
VCC1 VCC2
R156 C298 2 7 C329 C580
IN OUT
68 1000p 3 6 0.01u 0.01u
IN SW2
4 5
GND SW1
VOLTAGE
REGULATOR
IC10
TK11230CMCL-G
6 VIN 1
5V
VCoNT
5 GND2 2
GND1
R403 4 VoUT 3 C332
NoISEPASS
0 0.1u
3V
L137 L138 L139
L34-4614-05 (8T) L34-4614-05 (8T) L34-4614-05 (8T)
L34-4615-05 (9T) L34-4615-05 (9T) L34-4615-05 (9T)
C633 C634 C636 C638 C640 C642 C644
6p 39p 0.75p 0.75p 0.75p 0.75p 0.75p
5p 27p 1p 1p 1p 1p 1p
E
E1
F10-2379-04
R39 R54
0 0
MIX
A1
W02-1940-05
5
4 6
3 1
2
*
R50
*
L39
R81
0
* *
C285 L92
R417
0
5V
1.6V
RF AMP
Q53
2SC4725
0.9V
C646 C648 C649 C650 C659
0.75p 12p 12p 39p 6p
1p 15p 15p 27p 5p