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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 # 824
MODEL: TR-9000
SUBJECT: TR-9000 CW, SSB TX INSTABILITY
                                                        
     Complaints of FMing in SSB, or CW chirp may be eliminated
     
     by minor changes to the TX mixer circuit.
     
     On the TX unit X56-1370-10, perform the following changes:
     
     1. Cut the LT foil path.
     
     2. Install a 47 OHM resistor on the foil side of the PCB.
     
     3. Remove R27, 3.3 K and delete.
     
     4. Jumper the cut foil.
     
     5. Install a 2.2K resistor from Q12 collector to the
        modified LT foil on the foil side of the PCB.