Kenwood NXR-700 Service Manual page 151

FINAL UNIT:PA SECTION (X45-3852-71) (A/5)
TX:100mW
RX:0W
3dB ATT
TX UNIT CN1 R2
X56-311 (A/3)-CN802
18
RF IN
FINAL UNIT:DC SECTION
(X45-3852-71)(C/5)
CN29 CN2
C90 1000p
C86 0.01u
CN15
1
2 C83 1000p
RX UNIT
X55-309 -CN44 3 C80 0.01u CN30
CN21
B
CN12
1
TX UNIT 2 C72 1000p
X56-311 (A/3)-CN801
3 C70 0.01u
CN11
1
2
CONTROL UNIT
3 C61 1000p
X53-413 -CN4
4 C59 0.01u
C188 47u35
SURGE
PROTECTION
D5
DSA3A1-FK
L3
L79-1938-05
FINAL UNIT:FUSE SECTION
(X45-3852-71)(B/5)
SURGE
PROTECTION
CN25 CN23
D4
CN27
Z5W27V A
CN4
DC
CN26 CN24
CN28
CN8
1
FAN 1
2
POWER MODULE
IC10
RA60H1317M1A
TX H:3.69V TX H:11.7V
L:3.31V L:12.4V
LPF
RX : 0V RX :13.0V
HPF
C141 C60
120p 120p
C85
33p
L1
R38
C46
L2 150
1000p
OVERVOLTAGE
PROTECTION
D7
CURRENT SENSE
DETECTOR
R123
D9
HSB88WS
0 R106
02CZ5.6(Y)F
0
C47
0.01u
C63
CURRENT
R20
MONITOR
1000p
IC1 100k
INA195AIDBVT Q2
DC SW
SSM3K15TE(F)
TX H:2.71V
PA
L:1.15V
R102 L4
CURR
RX : 0V
0
R9
R21
100
OP AMP
820k
C49 IC2
NJM2904E-ZB
0.047u
C50
8
1
AoUT V-
1000p
2 7
A-IN BoUT
VOLTAGE 3 A+IN 6
B-IN
REGULATOR
R22
4 5
GND B+IN
IC11
820k
NJM7808FA-ZB 8V
C51
1000p
R17
10k
VR2
R142
0
10k
VOLTAGE
REGULATOR
IC3
TA78L05FF 5V
3 1
IN oUT
CoM
2
VOLTAGE
REGULATOR
IC12
12V
NJM2388F12-ZB
D6
SURGE
1SS355 PROTECTION
C38
22u35
C40
0.01u
C39
1000p
DIRECTIONAL COUPLER
FORWARD
TX H:3.62V
L:1.56V
RX :0V
FWD
C89
OP AMP
R31 R35
1000p
IC4
REF
NJM2904E-ZB
100k 82k
R53 R56
C77 8
1
150k 100k
AoUT V-
1000p C96
2 7
BoUT
A-IN
1000p
3 6
A+IN B-IN
R36 82k
4 5
GND B+IN
C78
R32 R54
100k 150k
1000p
C75
C97
R57
1000p
1000p 100k
C99 1000p
TEMP_PRT
TEMP_PRT
C88
OP AMP PRT
1000p
R50 IC5
C162
NJM2904E-ZB
100k
0.1u
C64
C95
8
1
AoUT V-
1000p
1000p
R39
2 7
A-IN BoUT
680k
3 6
A+IN B-IN
C67
R51
4 5
GND B+IN
1000p 100k
R40
680k
R89
C82
R28
0
0.1u
470k
PWR_CONT PWR_CONT
PWR CONT
FAN_CONT FAN_CONT
PA_CURR PA_CURR
ANT SW
RF SW
HPF
C105 D11 L8103R
C122 C123 L13
56n
1000p D16 L8103R 36p 33p
REFLECT
RF SW
C87
33p
R47 D19,20
RF SW
150
R52
5V
TX:8V
8.2
C108 R72 0
RX:0V
IC9
1000p
DC SW 8
1
A0 VCC
Q7
MTM13127 2 7
A1 WP
3 6
A2 SCL
DETECTOR 5
4
GND
SDA
D10
HSB88WS
DC SW
S24CS02AFJTBG
ANT SW Q5
EEPROM
SSM3K15TE(F)
C104
D
1000p
R68
100k
2V
R70 R71
0 0
OP AMP
TEMPERATURE
IC8
SENSOR 0V
NJM2904E-ZB
C113 4700p R150
5 4 8
1
AoUT V-
VSS CD1
PWR PRT
C114 4700p 0
7
6 3 2
RESET CD2 A-IN BoUT
R69 10k 6
7 2 3
R37
RT DET A+IN B-IN
C191 1u
1
820k 8 4 5
VoUT VDD GND B+IN
C115 1000p
R33
IC7
820k R104
S-8130AC
R66
Q8
39k
SSM3K15TE(F)
10
DC SW
R46
0
OP AMP
1
AoUT
2
A-IN
3
A+IN
4
GND
NJM2904E-ZB
TX H:25W
L:5W
RX :0W
LPF
L14 L15 R125 CN22
56n 56n 0
TX ANT
C161 RX
C124
CN19
18p 1000p
CN20
GND
36
GND
Q6
35
SSM3K15TE(F) WP
34
GND
DC SW
33
D_GND
32
SDA
31
D_GND
30
SCK
29
D_GND
28
CONT_5.0V
27
D_GND
26
C127
TEMP_PRT
25
1000p
GND
24
ANT_SW
CP1
23
GND
22
R156
TEMP_RST
21
0
GND
10kX4
20
FAN_CONT2
19
GND
18
FAN_CONT
17
GND
16
PWR_CONT
15
GND
14
PWR_PRT
13
GND
12
RFL_PWR
11
GND
10
FWD_PWR
9
GND
IC6
8
C98 FAN_CURR
8
V-
7
GND
1000p
7
BoUT
6
PA_CURR
R49
6
B-IN 5
0
GND
5
B+IN 4
NC(FAN_CURR2)
3
GND
2
GND
1
R145
0