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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 # 1059
MODEL: TS-450S/TS-690S
SUBJECT: Noisy Encoder 

Symptom: When tuning the Main Encoder of the TS450S/690S with bare hands 
you may encounter a scratching" noise in the speaker if an antenna with 
a high SWR is used. If gloves are worn no Problem is encountered. 
This occurs because the shaft of the encoder is not grounded.

Countermeasure:

Replace the Main Encoder with one that has a gounded shaft.

Parts Required:

Qty     Description              Part No.
1       Main encoder             W02-1836-05
2       Mountinq Screws          N90-3006-46

Note: You must use the new mounting screws listed above with the replacement 
      encoder.

Time required for this modification is 30 minutes or less.
Service Code A:09 B:20 C:185 D:91