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Kenwood Manuals
Repeater
NXR-800H
Service manual
Kenwood NXR-800H Service Manual page 250
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Advertisement
TX UNIT
CN1
X56-312 (A/3)-CN802
RF IN
FINAL UNIT(DC SECTION)
(X45-3862-71)(C/5):C2
CN29
C90
470p
C86
0.01u
CN15
1
2
C83
470p
CN30
RX UNIT
X55-310 -CN44
3
C80
0.01u
B
CN12
1
TX UNIT
2
C72
470p
X56-312 (A/3)-CN801
3
C70
0.01u
CN11
1
2
CONTROL UNIT
3
C61
470p
X53-413 -CN4
4
C59
0.01u
C188
47u35
SURGE
PROTECTION
D5
DSA3A1-FK
L3
L79-1938-05
FINAL UNIT(FUSE SECTION)
(X45-3862-71)(B/5):C2
SURGE
PROTECTION
D4
CN25
CN23
CN27
Z5W27V
CN4
A
DC
CN26
CN24
CN28
CN8
FAN 1
POWER MODULE
IC10
RA45H4047M131
FINAL UNIT(PA SECTION)
(X45-3862-71)(A/5):C2
TX:63mW(18dBm)
TX H:3.67V
TX H:12.7V
RX:0W
L:3.35V
L:12.9V
RX
:0V
RX
:13.1V
HPF
1DB ATT
R2
R23
C141
5.6
0
22p
C194
C150
5p
10p
C195
C153
10p
100p
CN501
L1
L92-0179-05
L2
L92-0179-05
C46
470p
OVERVOLTAGE
PROTECTION
D7
02CZ5.6(Y)F
CURRENT SENSE
DETECTOR
R123
D9
HSB88WS
10k
C47
CURRENT
MONITOR
0.01u
IC1
R20
LTC6101BIS5-F
C63
100k
470p
TX H:2.45V
L:1.08V
RX:0V
DC SW
Q2
PA
CN2
SSM3K15TE(F)
CURR
R102
R9
100
100
CN21
L4
L92-0131-05
R21
820k
OP AMP
IC2
C49
0.047u
NJM2904E-ZB
C50
470p
1
AoUT
2
A-IN
3
A+IN
R22
820k
4
GND
C51
470p
R17
10k
VR2
10k
R142
0
R32-0754-05
VOLTAGE
VOLTAGE
REGULATOR
REGULATOR
IC11
IC3
NJM7808FA-ZB
8V
TA78L05FF
3
1
3
1
IN
oUT
CoM
2
2
VOLTAGE
REGULATOR
SURGE
IC12
PROTECTION
NJM2388F12-ZB
12V
D6
1SS355
C40
0.01u
C39
470p
C55
10p
1
2
C60
22p
C85
8p
R38
150
TX H:3V
RX:0V
FWD
R31
R35
100k
68k
C77
1
470p
2
3
R36
4
68k
R32
C78
100k
470p
C75
470p
C157
10p
8
C64
V-
7
470p
BoUT
6
B-IN
5
C67
B+IN
470p
R28
470k
PWR CONT
5V
ANT SW
RF SW
DIRECTIONAL COUPLER
C105
D11
470p
L7091CER
D16
FORWARD
REFLECT
C87
L7091CER
10p
RF SW
R47
150
TX:8V
C108
RX:0V
C155
L:1.3V
470p
10p
REF
C89
DC SW
OP AMP
Q4
470p
2SJ506-E(S)
IC4
NJM2904E-ZB
R53
R56
DETECTOR
8
150k
100k
D10
AoUT
V-
HSB88WS
7
C96
A-IN
BoUT
6
470p
A+IN
B-IN
DC SW
5
GND
B+IN
C104
Q5
SSM3K15TE(F)
R54
470p
150k
ANT SW
D
C97
R57
470p
100k
R68
C99
100k
470p
R70
R71
0
0
TEMPERATURE
SENSOR
OP AMP
IC7
IC8
0V
S-8130AC
NJM2904E-ZB
5
4
1
C113
4700p
VSS
CD1
AoUT
6
3
2
C114
4700p
RESET
CD2
A-IN
7
2
R69
10k
3
RT
DET
A+IN
8
1
4
C191
1u
VoUT
VDD
GND
C115
470p
Q8
SSM3K15TE(F)
R66
10
DC SW
R45
0
OP AMP
R50
C156
IC5
PRT
NJM2904E-ZB
100k
10p
1.5V
PWR
C95
1
8
C88
C162
0.1u
AoUT
V-
PRT
2
470p
R39
820k
470p
7
A-IN
BoUT
3
6
R37
680k
A+IN
B-IN
R51
4
5
R33
680k
GND
B+IN
100k
R40
820k
C94
C82
0.1u
100p
R89
0
TX H:25W
LPF
L:5W
RX
:0W
HPF
C122
C123
L13
L14
L15
R125
CN22
TX ANT
22n
22n
22n
18p
22p
0
CN19
C124
RX
470p
D14,15
RF SW
5V
R72
0
IC9
S24CS02AFJTBG
8
1
A0
VCC
7
2
A1
WP
CN20
3
6
36
GND
A2
SCL
5
4
35
GND
GND
SDA
Q6
SSM3K15TE(F)
34
WP
33
GND
E2PROM
DC SW
32
D_GND
31
SDA
30
D_GND
29
SCK
28
D_GND
27
CONT_5.0V
C163
26
D_GND
10p
25
TEMP_PRT
24
GND
23
ANT_SW
C127
22
GND
470p
8
21
TEMP_RST
V-
7
20
GND
BoUT
6
19
FAN_CONT2
B-IN
5
18
GND
B+IN
17
FAN_CONT
CP1
RK75GB1J103J
16
GND
15
PWR_CONT
14
GND
13
PWR_PRT
12
GND
11
RFL_PWR
10
GND
9
FWD_PWR
OP AMP
8
GND
C166
IC6
NJM2904E-ZB
7
FAN_CURR
10p
C98
6
GND
1
8
AoUT
V-
470p
5
PA_CURR
2
7
A-IN
BoUT
3
6
R49
4
GND
A+IN
B-IN
0
3
4
5
GND
B+IN
2
GND
1
GND
R145
0
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