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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 # 33
MODEL: RM-76
SUBJECT: CORRECTING THE FREQUENCY DIFFERERCE WITH THE RM-76 AND TR-7600
The RM-76 will be about 500Hz higher in frequency than the
TR-7600/TR-7625. This will not present any problem most of
the time. Our specified tolerance is +750Hz. The operating
frequency may be out of the receiver input of a repeater if the
transceiver is turned slightly high, however. The frequency
difference may be corrected by adding additional diodes in series
with both the 02 and 52 lines in the RM-76. This is shown in the
graphic.
The foil paths from the connector to diodes Dl8 and Dl9 are cut
and the new diodes soldered on the foil side of the board. The
cathode end of the diodes is soldered to the connector side. We
recommend using either 1S2076 or lSl555 dicdes.