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Kenwood Manuals
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NXR-800H
Service manual
Kenwood NXR-800H Service Manual page 214
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
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RD
C120
C121
A0
A
A
D1
R
D3
TOR
D4
D6
R159
DC/DC CONVERTER
Q2
2SJ506-E(S)
Q14,15
DC/DC CONVERTER
Q14
2SC4116(Y)F
R432
47
C413
0.1u
Q15
2SA1586(Y)F
IC10
NJM2340RB1
R90
5
4
oUT
GND
C123
R96
15k
6
3
CT
FB
R81
7
2
22k
4700p
VREF
IN2
56k
8
1
V+
IN1
DC/DC
CONVERTER
DC/DC
CONVERTER
CONTROL
Q3
DC/DC CONVERTER
2SJ506-E(S)
Q16,17
DC/DC CONVERTER
Q16
2SC4116(Y)F
R434
47
C415
0.1u
Q17
2SA1586(Y)F
R92
5
4
oUT
GND
C125
R98
6
3
5.6k
CT
FB
R82
7
2
4700p
10k
IN2
VREF
56k
8
1
V+
IN1
DC/DC
CONVERTER
IC11
NJM2340RB1
DC/DC
CONVERTER
CONTROL
OP AMP
IC7
TA75S01F-F
1
5
IN(+)
VCC
2
VEE
3
4
IN(-)
oUT
R131
47k
G1
oE
G2
DQ9
G3
DQ11
1000p
G4
VCC
10u
G5
DQ13
FLASH MEMORY
G6
DQ15/A-1
IC17
H1
VSS1
H2
DQ1
H3
DQ3
H4
DQ4
H5
DQ6
H6
VSS2
0
5.0V
R129
0
R101
0
L15
68u
IC16
XC6209B502PR
VOLTAGE
REGULATOR
50MPU_CoNT
5.0V
VOLTAGE
REGULATOR
IC15
R533
BA33BC0FP
0
1
IN
R128
GND
0
2
L16
33u
IC18
3.3V
XC6201P182MR
R130
1
VIN
0
2
VSS
3
NC1
VOLTAGE REGULATOR
X53-4132-XX
-71
-72 (for Service)
D6
A16
A15
D5
A12
A11
D4
NC4
D3
NC3
D2
A6
A5
D1
A2
A1
C6
A15
A14
C5
A11
A10
C4
NC2
C3
CS1
A18
C2
A7
A6
C1
A3
A2
R137
1k
RX_PWR_SAVE
33MPU_A_GND
50MPU_A_GND
8.0V
R146
0
R148
0
3.3V
R141
3
oUT
0
R142
0
R143
0
1.8V
R153
5
VoUT
0
4
NC2
BER_CLK
BER_DAT
SB
IC29
R552
R553
C
NO
0
NO
C
LA4425A
NO
0
io6
io5
io4
io3
io2
io1
Ai3
Ai2
Ai1
TX_DDS_EN
TX_PLL_440_EN
SYS_RST
TX_PLL_440_CE
TX_PLL_132_EN
TX_PLL_132_CE
TX_2DA_EN
TX_2DA_CE
CLOCK
SHIFT SW
Q4
C212
2SC4738F
X1
L77-1984-05
14.7456MHz
12p
50MPU
1
R473
2
100k
3
R472
100k
R183
0
IC22
BU4094BCFV
SHIFT
RESISTER
*
R552
A
*
R553
B
D7
103
D6
104
D5
105
D4
106
D3
107
P10/D8
D2
108
P07/AN17/D7
P03/AN13/D3
P06/AN16/D6
D1
109
P02/AN12/D2
P05/AN15/D5
D0
110
P04/AN14/D4
P01/AN11/D1
111
P00/AN10/D0
112
P117
113
P116
114
P115
115
P114
116
P113
117
P112
118
P111
119
P110
120
P107/AN07/KI3
121
P106/AN06/KI2
122
P105/AN05/KI1
123
P104/AN04/KI0
124
P103/AN03
125
P102/AN02
126
P101/AN01
127
AVSS
128 P100/AN00
5_ToNE
C226
10u
C227
1000p
R195
0
R196
0
CLOCK
SHIFT SW
C222
Q5
2SC4738F
15p
R200
0
R201
0
RX_PWR_SAVE
A_TXD0
BUFFER
BUFFER
IC40
IC27
TC7SH126FU-F
TC7SET126FU-F
5
1
G
VCC
G
VCC
2
INA
INA
4
3
GND
oUTY
GND
oUTY
BUFFER
IC28
TC7SH126FU-F
1
G
VCC
2
INA
3
GND
oUTY
GND
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