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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 # 848
MODEL: TS-530S
SUBJECT: Low Voltage Supply Optional Improvements 


Power supply drift and stability may be improved by these optional
component changes and additions.

On the AF AVR unit X49-1150-00 (Vicinity of Q19,Q20) change:

     R68 from 1K to 1.5K (RD14CB2E152J)*
     R72 from 470 to 390 (RD14CB2E391J)*
     D14 from WZ-061 to XZ-053 (V11-4101-60)*

*This will improve temperature drift from a maximum of about 100mV to a
maximum of 1mV, and may be applied to any unit before serial # 201xxxx.

Add two 22 k ohm 1/4 resistors (RD14CB2E223J0, one each across Q19, and
Q20, collector to emitter.#

#This will improve overall stability and may be applied to any unit before
serial #201xxxx.

Note:  These changes are at the owners option and may not be performed in-
warranty.