Kenwood NX-300 Service Manual page 77

Uhf digital transceiver
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F
CONTROL UNIT (X53-4260-XX)
5
6
5
6
A16
A17
6
A13
A19
A12
A20
B11
CVSS9
A11
DVDD5
D10
C101
D6
D6
C10
0.1u
D7
D7
B10
D8
D8
A10
D9
D9
D9
D10
D10
C9
D11
D11
B9
D12
D12
5
A9
CN102
HD4
D8
D13
D13
C8
D14
D14
B8
D15
D15
A8
HD5
C102
0.1u
D
B7
CVDD6
A7
CVSS10
C7
/RD
HDS1
D7
DVSS8
A6
/HDS2
HDS2
B6
DVDD6
C6
C103
A0
A0
D6
0.1u
A1
A1
A5
A2
A2
B5
A3
A3
C5
7
CN101
HD6
D5
A4
A4
A4
A5
A5
B4
A6
A6
C4
A7
A7
A3
A8
A8
C104
B3
A9
A9
0.1u
C3
CVDD7
A2
A21
B2
DVSS9
D
7
5
7
8
9
A
LCONT
RESET
G
SCHEMATIC DIAGRAM
IC102
DSP
BER_EN
13
H
5
6
R126 100
R127 0
M12
DVSS7
R128 0
N12
BCLKX1
L11
CVSS8
M11
HD1
N11
CVDD5
C119 1u
L10
INT3
M10
INT2
N10
INT1
K9
INT0
L9
NMI
M9
HBIL
N9
R137 100k
IACK
K8
BDX2
L8
R129 100
BDX0
M8
HD0
N8
DVSS6
K7
DVDD4
R130 100
L7
HRDY
N7
BFSX2
R131 100
M7
BFSX0
N6
CVDD4
C120 0.1u
M6
HINT
L6
CVSS7
K6
BCLKX2
N5
BCLKX0
M5
BDR2
R139
L5
HCNTL1
100k
K5
BDR0
N4
BFSR2
M4
BFSR0
L4
BCLKR2
K4
BCLKR0
N3
DVSS5
R132
M3
HCNTL0
100k
N2
BCLKR1
N1
CVSS6
7
8
9
CN701
I
J
NX-300
L712
MCDIAF
MCSCKAF
R135 100k
FSDET
R141 100k
INT3
/DINT
R150 1k
/SYMTIM
R142 100k
/DWUP
R136 100k
11
12
BDX2
MCDICN
R143 100k
C121 0.1u
R145 100k
/MCCSXCN
R146 100k
BCLKX2
R147 100k
BDR2
MCDOCN
R193 100k
BFSR2
/MCCSRCN
R194 100k
BCLKR2
R140
0
12
11
/MCCSAF
MCDOAF
13
X53-426 2/10
HD2
5
6
X2_CLKIN
33MDSP
HD0
BCLKX0
BCLKR0
11
12
7
5RC
8
9
LCONT
RESET
13
77

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