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World of Ham Radio 1997
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==============================================================================
K E N W O O D
>>> A M A T E U R R A D I O S E R V I C E B U L L E T I N <<<
==============================================================================
Kenwood Service Centers
Kenwood Service Corporation Kenwood Service Center, East
2201 East Dominguez Street 829 Lynnhaven Parkway, Suite 130
Long Beach, California 90801 Virginia Beach, Virginia 23452
Telephone 1-310-639-5300 Telephone 1-804-340-1702
==============================================================================
BULLETIN # 933
MODEL: TM-221A
SUBJECT: No TX in High Power Due to Voltage Drop
Some TM-221A transceivers may intermittently not transmit in
the high power mode. This condition may be the result of a
voltage drop at the fuse terminals on the power cord. To
prevent a voltage drop, solder the terminals by following
the procedure below.
1. Disconnect the antenna and power supply.
2. Open and remove the plastic fuse holder.
3. Remove the fuse from the terminals.
4. Flow solder between the terminals and the exposed
strands of the cable.
5. Allow the terminals to cool and then reinstall the
fuse and close the holder.
Time required for this modification is 1/4 hour or less.