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Make/Model Information:

  • Brand:   Kenwood
  • Models included:
    • Kenwood NX-300

File Information:

  • Type:   Factory Service Manual (FSM)
  • Language:   English (EN)
  • Number of pages:   102
  • File size:  ∼ 4.40 MB
  • File Format:   PDF only
  • SME Watermarks:   None
  • Password lock:   No
  • Edit/copy/modify:   Yes
  • SKU:   ROKE-0002

NOTE:  This list was created by program script and may not accurately represent the text from the source pages.   For full preview please click on 'Download sample':

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UHF DIGITAL TRANSCEIVER
NX-300
© 2007-10 PRINTED IN JAPAN
B51-8811-00 (S) 243
SERVICE MANUAL
GENERAL
SYSTEM SET-UP
REALIGNMENT
DISASSEMBLY FOR REPAIR
CIRCUIT DESCRIPTION
COMPONENTS DESCRIPTION
PARTS LIST
EXPLODED VIEW
PACKING
ADJUSTMENT
TERMINAL FUNCTION
PC BOARD
CONTROL UNIT (X53-4260-XX)
TX-RX UNIT (X57-7370-10)
Does not come with antenna. Antenna is available as an option.
SCHEMATIC DIAGRAM
CONTROL UNIT (X53-4260-XX)
TX-RX UNIT (X57-7370-10)
INTERCONNECTION DIAGRAM
BLOCK DIAGRAM
LEVEL DIAGRAM
OPTIONAL ACCESSORIES
KNB-47L (Li-ion BATTERY PACK)
KNB-48L (Li-ion BATTERY PACK)
SPECIFICATIONS
CONTENTS
1 2 ABC 5 JKL 0
TUV 4 7 GHI PQRS 3 DEF 6 MNO
# 9 WXYZ
NX-300 K3 NX-300 K
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)
(B43-1606-04)
(B43-1606-04) Knob (PTT)
(K29-9405-03)
Knob (PTT)
(K29-9405-03)
Plastic cabinet assy
(18 key)
(A02-4003-13)
Plastic cabinet assy
(6 key)
(A02-4002-13)
Packing (6 key)
(G53-1765-11)
Packing (18 key)
(G53-1766-11)
This product uses Lead Free solder. This product complies with the RoHS directive for the European market.
J I H G F E D C B A
D1 D2 D5
D9 D10
J79-0131-19
NX-300 PC BOARD
CONTROL UNIT (X53-4260-XX) -10: K, -11: K3
Component side view (J79-0131-19)
Ref. No. Address
IC1 6K
IC415 8K
Q1 7K
Q2 7L
Q3 6L
Q4 4L
Q5 4L
D1 5D
D2 5C
D3 3O
Ref. No. Address
D4 3Q
D5 5B
D6 7B
D7 10O
D8 10Q
D9 7D
D10 7C
D11 7L
D12 7M
D13 7M
Ref. No. Address
D14 7M
D15 7L
D16 7L
D17 9L
D18 4L
D19 4L
D20 8M
D21 8M
D22 8L
NX-300
SPECIFICATIONS
GENERAL
Models
Frequency Range
Number of Channels
Max. Channels per Zone
Channel Spacing
Operating Voltage
Battery Life (with KNB-48L)
10-10-80 duty cycle : more than 8.5 hours
Operating Temperature Range
Frequency Stability
Antenna Impedance
Dimensions (W x H x D) (Projections not included)
Radio only
with KNB-47L
with KNB-48L
Weight
Radio only
with KNB-47L
with KNB-48L
RECEIVER
Sensitivity
Analog (12dB SINAD) : 0.25 µV
Selectivity
Intermodulation Distortion
Spurious Response
Audio Distortion
Audio Output
TRANSMITTER
RF Power Output
Spurious Response
FM Hum and Noise
Audio Distortion
Modulation
4K00F7W, 4K00F2D
Analog measurements made per TIA/EIA 603
KENWOOD reserves the right to change specifications without prior notice or obligation.
2967-3, Ishikawa-machi, Hachioji-shi, Tokyo, 192-8525 Japan
P.O. BOX 22745, 2201 East Dominguez Street, Long Beach,
6070 Kestrel Road, Mississauga, Ontario, Canada L5T 1S8
Rembrücker Str. 15, 63150 Heusenstamm, Germany
Leuvensesteenweg 248 J, 1800 Vilvoorde, Belgium
KENWOOD House, Dwight Road, Watford, Herts.,
Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands
Via G. Sirtori, 7/9 20129 Milano, Italy
Bolivia, 239-08020 Barcelona, Spain
(A.C.N. 001 499 074)
16 Giffnock Avenue, Centrecourt Estate, North Ryde, N.S.W. 2113 Australia
Unit 3712-3724, Level 37, Tower one Metroplaza, 223 Hing Fong Road,
1 Ang Mo Kio Street 63, Singapore 569110
CA 90801-5745, U.S.A.
Kwai Fong, N.T., Hong Kong
WD18 9EB United Kingdom
L’Etoile Paris Nord 2, 50 Allée des Impressionnistes,
Bp 58416 Villepinte, 95944 Roissy Ch De Gaulle Cedex


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