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                             K E N W O O D
   >>>   A M A T E U R   R A D I O   S E R V I C E   B U L L E T I N   <<<
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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 # 878
MODEL: TS-530S
SUBJECT: IF Unit Q2, Q7 Protection 


High voltage transients at the receiver antenna can be felt in the ALC
circuitry and cause a failure of IF unit transistors Q2 and Q7.  Symptoms
encountered bay be a loss of RX sensitivity, and or loss of S-Meter
deflection.

Add the surge suppressor to the AF unit (X49-1150-XX) between terminal FG
and ground, to prevent a reoccurance of this symptom.

Parts required:

Surge Suppressor ERZD03DK331

Time required for this modification is 1/2 hour or less.