General; System Set-Up - Kenwood FM Transceiver TK-481 Service Manual

TK-480/481
INTRODUCTION
SCOPE OF THIS MANUAL
This manual is intended for use by experienced techni-
cians familiar with similar types of commercial grade com-
munications equipment. It contains all required service in-
formation for the equipment and is current as of this publica-
tion date. Changes which may occur after publication are
covered by either Service Bulletins or Manual Revisions,
which are issued as required.
ORDERING REPLACEMENT PARTS
When ordering replacement parts or equipment informa-
tion, the full part identification number should be included.
This applies to all parts : components, kits, and chassis. If
the part number is not known, include the chassis or kit
number of which it is a part and a sufficient description of
the required component, for proper identification.
PERSONNEL SAFETY
The following precautions are recommended for person-
nel safety :
• DO NOT transmit until all RF connectors are secure and
any open connectors are properly terminated.
Unit TX-RX unit
X57-5630-XX
Model &
destination 0-10
K
TK-480
K2
K
TK-481
K2
Note X57-5630-XX/X54-3210-XX : Produced in Singapore

SYSTEM SET-UP

License and frequency allocated by FCC
Are you using the speaker microphone?
2
GENERAL / SYSTEM SET-UP
Display unit
X54-3210-XX
Frequency range
0-11 0-10 0-11
806~870MHz
896~941MHz
Merchandise received
Choose the type of transceiver
Transceiver programming
NO
Delivery
• SHUT OFF this equipment when near electrical blasting
caps or while in an explosive atmosphere.
• This equipment should be serviced by only qualified tech-
nicians.
SERVICE
This radio is designed for easy servicing. Refer to the
schematic diagrams, printed circuit board views, and align-
ment procedures contained within.
NOTE
WE CANNOT guarantee oscillator stability when using
channel elements manufactured by companies other than
KENWOOD or its authorized agents.
You must use the KPG-49D to program TK-480/481 trans-
ceivers with a serial number of 30100001 or greater. You
cannot use the KPG-35D for those radios.
TK-480/481 transceivers with a serial number of
30100001 or greater have a red triangle in the KENWOOD
logo label (B43-1139-04) on the front panel. You will also
find the model name plate marked as "Ver 2.0" on the rear
of the transceiver.
Remarks
IF1 : 44.85MHz
LOC : 44.395MHz
IF1 : 44.85MHz
LOC : 44.395MHz
Frequency range (MHz) RF power
TX 806~825
851~870
RX 851~870
TX 896~902
935~941
RX 935~941
A personal computer (IBM PC or compatible), programming
interface (KPG-36), and programming software (KPG-49D) are
required for programming.
(The frequency, trunked system features, conventional system
features, TX power HI/LOW, and signaling data are programmed
for the transceiver.)
YES
KMC-25
Speaker microphone
(Option)
QT/DQT DTMF Charger Battery
Option
Option
Type
2.5W TK-480 K,K2
TK-481 K,K2
16 key
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