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Kenwood Manuals
Transceiver
NX-320 Series
Service manual
Kenwood NX-320 Series Service Manual page 92
Uhf digital transceiver kenwood nx-320 series
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Table Of Contents
111
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
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U
NX-320
TX-RX UNIT (X57-8050-XX)
33M
15M
33MC
BUFFER(CLOCK)
IC 6 09
SM 5 0 2 3C N D H - G
R6 2 9
4 Q
V S S
2 2
5 V D D
ASQDET
6 X TN
I N H N
R6 30
D
X2/CLKIN
4 7 0k
3
A4
B4
XTALI
XTALo
A10
32I
A12
DSPCK
2
D
B11
HINIT
CKo
A11
USRCKI
A[0]
H18
ADD0
A[1]
J18
ADD1
A[2]
K18
ADD2
A[3]
L18
ADD3
A[4]
M18
ADD4
A[5]
N18
ADD5
A[6]
J17
ADD6
A[7]
K17
ADD7
A[8]
M17
ADD8
A[9]
N17
ADD9
A[10]
P17
ADD10
A[11]
K16
ADD11
A[12]
L16
ADD12
A[13]
M16
ADD13
A[14]
P16
ADD14
A[15]
J15
ADD15
A[16]
K15
ADD16
A[17]
M15
ADD17
A[18]
N15
ADD18
A[19]
P15
ADD19
A[20]
J16
ADD20
H15
CN607
ADD21
D[0]
G17
DT0
D[1]
H16
DT1
D[2]
G15
DT2
D[3]
F18
DT3
D[4]
F17
DT4
D[5]
G16
DT5
D[6]
E18
DT6
D[7]
E17
DT7
D[8]
F16
DT8
D[9]
D18
DT9
D[10]
D17
DT10
D[11]
B15
DT11
D[12]
D16
DT12
D[13]
C15
DT13
D[14]
D15
DT14
D[15]
E15
DT15
A15
/WR
WRITE
A16
/RD
READ
B14
BHE
PCB version
C14
BLE
A13
CS4
/CS3
D13
CS3
C13
/CS2
CS2
B13
CS1
A14
/CS0
CS0
B12
/HRDY
HRADY
/HDS2
D14
HDS2
R18
TXD0
T18
RXD0
R16
RTS0
R15
CTS0
U15
TXD1
T15
RXD1
V15
TXD2
V14
RXD2
T14
TXD3
R624
4
4.7k
R625
4.7k
R631
1k
10
5
6
SB2
KEYI0
KEYI1
7
8
33M
RESET
33A
50C
92
X57-805 3/8
V
SCHEMATIC DIAGRAM
3.30V
X60 1
L 77- 30 15- 05
3
2
3 oU TPUT
C 674
2
GND
D
X T
1
D
0. 01u
4 V C C
1
V C
18.432MHz
IC610
ASIC
D
W
L613
L614
0.03V
R63 3
C 6 79 0.01u
1 k
C 680
1u
C 6 81 0.1u
D
D
CN 611
D
D
RESET
X
Y
C687
0.1 u
D
1u
C688
DGND3
C 689
0.1u
E12
DGND2
E11
DGND1
E10
DVDIo7
L5
0 .01u
C 69 1
DVDIo6
P6
DVDIo5
C 69 2
P11
1 u
DVDIo4
L14
DVDIo3
C 69 3
0. 1u
H14
DVDIo2
E13
DVDIo1
E7
DVDD10
M5
DVDD9
33MAS
N5
DVDD8
P9
DVDD7
P10
DVDD6
N14
DVDD5
M14
DVDD4
D
G14
DVDD3
F14
DVDD2
E9
DVDD1
E8
GPIo11
B5
SBC
GPIo10
C6
5VC
GPIo9
B6
GPIo8
A6
GPIo7
U8
GPIo6
R8
EXTMICSW
GPIo5
C P 610
100kx4
ENC4
R7
GPIo4
ENC3
T7
GPIo3
V10
GPIo2
ENC2
U9
GPIo1
ENC1
V9
GPIo0
T9
AFSW
SIMRST
R 6 41
C11
1k
/PSW
SIMCK
R 6 42
1 k
D12
/BINT
SIMDT
C12
SYMTIM
R5
FSDET
FSDET
R6
TXC
TXRVE
/DSW
R2
TRAMP
P3
TMoD
P2
/APCSW
PSTPA
M4
PSTIF
R1
PSTPLL
N3
/SAVE
RXRVE
N2
/T_R
RXSLT
P1
RXC
PSRRF
L4
PSRIF
M2
D
PDSW
PSRPLL
M3
/DRST
RSSIT
N1
/DWUP
VFRM
D8
/DINT
VoINT
D7
OPTDET
MCo2
R640
C7
/EMG
MCCS2
D10
1k
PLD
MCCK2
C8
MCCR1
D9
/MCCSXCN
MCCX1
/SYMTIM
B7
HOST_RDY
MCo1
MCDICN
C9
MCI1
B8
MCSCKCN
MCCK1
A7
/MCCSAF
MCCS0
B10
MCDOAF
MCo0
B9
MCDIAF
MCI0
D11
MCSCKAF
MCCK0
A8
AGCDAC
D
D
R3
ASSIST
IF_DET
R 6 38
C695
18 k
0 .01u
Q 602
DC SWITCH
(SYSTEM)
33AA
D
D
5
15M
33M
33A
BATT
33M
PCK_RF
SCK1
PCK_DSP
/PCS_RF
/PCS_DSP
/PCS
SB2
33M
6
33A
50C
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