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                             K E N W O O D
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                        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

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BULLETIN # 802
MODEL: RM-76
SUBJECT: MICROPROCESSOR FAILURE


When servicing an RM-76 for IC5 failure, also check pin 39 vdd voltage,
which should be approximately 6vdc.  Higher voltage will lead to premature
second failure.  An incidental symptom for this problem would be such
reports as all "8's" before total failure.

Replace IC5 and IC2, NJM78L06A, the 6v regulator for the microprocessor.
Also check IC1, FS7806M, which supplies regulated 6v for all other
sections.  Failure of this regulator (at about 10v dc) will give all logic
hi's.

JEB/yn
(c) 2880TKC