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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 # 927
MODEL: RC-10
SUBJECT: ALTERNATOR NOISE									   10/28/88


When two transceivers are connected to the RC-10, alternator noise may 
be induced in the mic circuits. The following modification will correct 
this condition.

PARTS REQUIRED:

600 OHM : 600 OHM ISOLATION TRANSFORMER ..... W05-0222-00 ..... QTY.2.
470 uH FERRI-INDUCTOR ....................... L40-4711-05 ..... QTY.1.

1. Remove the base plate from the RC-10 (6 screws on the plate; 1 screw 
   on the back panel).
2. Add the ferri-inductor between pins 7 and 8 of connector B .
3. Locate connectors J2 and J3 on the AF unit (X49-3010-XX B/3).
4. Add a transformer in each mic circuit.
5. Using double sided tape, secure each transformer to the side wall 
   of the base.

Time required for this modification is 0.5 hrs or less.