General - Kenwood TK-80 Service Manual

TK-80
INTRODUCTION
SCOPE OF THIS MANUAL
This manual is intended for use by experienced techni-
cians familiar with similar types of commercial grade commu-
nications equipment. It contains all required service informa-
tion for the equipment and is current as of the publication
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, or 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 re-
quired component for proper identification.
PERSONAL SAFETY
The following precautions are recommended for personal
safety:
• DO NOT transmit until all RF connectors are verified to be
secure and any open connectors are properly terminated.
• SHUT OFF and DO NOT operate this equipment near elec-
trical blasting caps or in an explosive atmosphere.
• This equipment should be serviced only by qualified tech-
nicians.
SERVICE
This radiotelephone is designed for easy servicing. Refer
to the schematic diagrams, printed circuit board views, and
alignment procedures contained within.
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GENERAL / REALIGNMENT
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1. Modes
Power supply OFF
1. User mode
3. Dealer mode
5. Service adjustment mode
6. Reset mode
Note:
DIP SW1 is set to "ON" when shipped from the factory. If
the dealer mode, service adjustment mode, and reset mode
fail to function, please check to see that DIP SW1 is set to
"ON".
No. Mode
1 User mode For normal use.
2 User menu mode Selects the user menu.
3 Dealer mode Writes the various data settings to
the memory channels.
4 Dealer menu mode Selects the dealer menu.
5 Service adjustment Selects the adjustment items for
mode the service adjustment mode menu.
6 Reset mode Clears all memory channels and the
menu contents.
2. User menu mode
4. Dealer menu mode
Function