Kenwood NX-300 E - User Manual

SERVICE MANUAL
This product uses Lead Free solder.
This product complies with the RoHS directive for the European market.
E version
© 2009-1 PRINTED IN JA PAN
B51-8859-00
(
N
)
157
NX-300
UHF DIGITAL TRANSCEIVER
MI
C
1
2
ABC
5
JK
L
0
8
TUV
4
7
GH
I
PQRS
3
DEF
6
MNO
MI
C
#
9
WXY
Z
Knob (Selector)
(K29-9408-13)
Knob (Selector)
(K29-9408-13)
Knob (Volume)
(K29-9407-03)
Knob (Volume)
(K29-9407-03)
Helical Antenna
(KRA-23: option)
Badge
(B43-1606-04)
Badge
(B43-1606-04)
Knob (PTT)
(K29-9405-03)
Knob (PTT)
(K29-9405-03)
Plastic cabinet assy
(18 key)
(A02-4003-23)
Plastic cabinet assy
(6 key)
(A02-4002-23)
Packing (6 key)
(G53-1765-11)
Packing (18 key)
(G53-1766-11)
GENERAL ................................................................... 2
SYSTEM SET-UP ....................................................... 3
REALIGNMENT ......................................................... 3
INSTALLATION .......................................................... 7
DISASSEMBLY FOR REPAIR .................................... 8
CIRCUIT DESCRIPTION .......................................... 18
COMPONENTS DESCRIPTION ............................... 24
PARTS LIST ............................................................. 26
EXPLODED VIEW .................................................... 37
PACKING .................................................................. 38
TROUBLE SHOOTING ............................................ 39
ADJUSTMENT ........................................................ 43
Does not come with antenna. Antenna is available
as an option.
TERMINAL FUNCTION ........................................... 68
PC BOARD
CONTROL UNIT (X53-4262-XX) ........................ 76
TX-RX UNIT (X57-7370-11) ............................... 80
INTERCONNECTION DIAGRAM ............................ 84
SCHEMATIC DIAGRAM .......................................... 86
BLOCK DIAGRAM ................................................ 100
LEVEL DIAGRAM ................................................. 104
OPTIONAL ACCESSORIES
KNB-47L (Li-ion Battery Pack) ........................ 105
KNB-48L (Li-ion Battery Pack) ........................ 105
SPECIFICATIONS ................................. BACK COVER
NX-300 E NX-300 E4
CONTENTS

Kenwood NX-300 E Specifications

General

Brand	Kenwood
Model	NX-300 E
Category	Transceiver
Language	English