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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 # 1055
MODEL: All
SUBJECT: Power Module Heat Sink Compound 

Symptom: Several current and past model transceivers do not use Heat 
Sink Compound on the power modules. Our engineering department determined 
through testing, that those models with fine castings or machined areas 
under the power module do not really require its use. Several service 
facilities and customers have questioned this and are concerned that 
this could eventually cause failure of the power module(s).

Corrective Action: In order to ameliorate any anxiety and to increase your 
confidence, our engineers recommend that you use Silicone Heat Compound 
whenever replacing any of these devices or whenever they must be lifted 
for service of other components on the board. Our production lines will 
begin using this compound again as added protection for these devices.


Parts Required: 

Silicone Heat Sink Compound  W01-0411-05