Kenwood NXR-700 Service Manual page 124

Vhf digital base-repeater
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C
C436
R469
10k
1u
MULTIPLEXER
R77
IC3
BU4053BCFV
100k
1
16
Y1
VDD
2
15
Y0
Y
3
14
Z1
X
4
13
A
Z
X1
R70
5
12
Z0
X0
6
11
0
INH
A
R471
7
10
VEE
B
8
9
100k
VSS
C
A
A
CODEC
IC4
AK4550VTP
63mV
16
1
C86
10u
VCoM
AoUTR
15
C77
100u
2
C87
100u
AINR
AoUTL
14
C78
10u
3
AINL
PWDA
13
4
VSS
PWAD
12
5
R529
0
VDD
SCLK
11
6
R530
0
DEM0
MCLK
10
7
R531
0
DEM1
LRCK
8
9
R532
0
SDTo
SDTI
OP AMP
IC5
457mV
00p
C95
100u
NJM2732V
82k
1
8
C96
100p
AoUTPUT
V+
2
7
R78
100k
A-INPUT
BoUTPUT
3
6
A+INPUT
B-INPUT
4
5
GND
B+INPUT
C81
0.1u
D/A
CONVERTER
R420
MULTIPLEXER
R484
IC2
BU4053BCFV
R501
1
16
Y1
VDD
2
15
Y0
Y
C98
0
3
14
R428
Z1
X
4
13
R429
0
10u
Z
X1
5
12
R430
0
Z0
X0
6
11
INH
A
7
10
VEE
B
8
9
A
VSS
C
C80
0.1u
A
A
5.0V
SC
OP AMP
C103
R100
47k
IC9
NJM2734V
100p
R83
1
14
C122
100p
AoUTPUT
DoUTPUT
2
120k
13
A-INPUT
D-INPUT
3
12
R102
12k
A+INPUT
D+INPUT
4
11
R103
47k
V+
GND
5
10
B+INPUT
C+INPUT
6
9
B-INPUT
C-INPUT
R84
7
R104
8
BoUTPUT
CoUTPUT
47k
47k
140mV
C102
R105
47k
15p
INVERTER
Q1
DTC114EUA
125mV
R93
0
80mV
C110
R87
22k
100u
R406
R106
0
0
A
IC8
M62364FP-F
13
12
200mV
VIN5
VIN4
0
14
11
VoUT5
VoUT4
0
15
10
640mV
VoUT6
VoUT3
0
16
9
VIN6
VIN3
17
8
EVOL_DATA
D0
DI
18
7
EVOL_CLK
VDAREF
CLK
19
6
EVOL_LD
RESET
LD
20
5
GND
VDD
21
4
VIN7
VIN2
22
3
VoUT7
VoUT2
23
2
VoUT8
VoUT1
24
1
VIN8
VIN1
640mV
R131
D
R133
R127
47k
47k
OP AMP
C128
IC12
A
NJM2732V
100p
R115
1
8
AoUTPUT
V+
150k
2
7
A-INPUT
BoUTPUT
3
6
A+INPUT
B-INPUT
4
5
GND
B+INPUT
645mV
C134
0.1u
A
A
D_AF
C146
0.1u
MULTIPLEXER
IC14
BU4053BCFV
1
16
Y1
VDD
R479
2
15
Y0
Y
0
3
14
Z1
X
4
13
Z
X1
C409
C410
5
12
Z0
X0
6
11
1u
1u
INH
A
7
10
VEE
B
8
9
VSS
C
A
R144
R494
0
0
A
R400
0
R401
0
OP AMP
IC21
C177
100p
NJM2734V
R158
33k
1
AoUTPUT
DoUTPUT
2
A-INPUT
D-INPUT
92mV
3
A+INPUT
D+INPUT
4
V+
GND
5
B+INPUT
C+INPUT
6
B-INPUT
C-INPUT
7
BoUTPUT
CoUTPUT
R482
0
C193
1u
C200
10u
OP AMP
C173
IC20
NJM2734V
100p
R151
1
14
AoUTPUT
DoUTPUT
120k
2
13
A-INPUT
D-INPUT
3
12
A+INPUT
D+INPUT
4
11
V+
GND
R154
5
10
B+INPUT
C+INPUT
33k
6
9
B-INPUT
C-INPUT
7
8
BoUTPUT
CoUTPUT
A
C189
0.1u
A
R150
56k
R160
56k
OP AMP
C446
IC19
NJM2732V
390p
R149
1
8
AoUTPUT
V+
33k
2
7
A-INPUT
BoUTPUT
3
6
A+INPUT
B-INPUT
4
5
GND
B+INPUT
C188
0.1u
A
33SH
D7
D6
D5
D4
D3
E
SC
C190
R163
0
TA
1u
R178
0
TD
C197
R175
39k
33p
R166
14
13
33k
A
12
150mV
SPM
C202
R177
11
RA
AF_MUTE
10
0
1u
9
C203
8
100p
R174
68k
C192
1u
AMP_SW
A
AF MUTE SW
RD
Q26
DTC144EUA
MiC_D_iN
C208
R171
RX_AUDio_D
18k
10u
R172
47k
R167
47k
A
C199
MoD_D_oUT
100u
C194
A
56p
103
104
105
106
107
T
1
I
2
I
3
G
C
A
A

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