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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 # 895
MODEL: TS-430S
SUBJECT: PLL Unlock at High Temperatures (Revision)


This service bulletin supercedes bulletin 891, which concerned low input
level to IC-16 as the radio warmed up.  This bulletin incorporates
information contained in Bulletin 891 plus additional information.

PROCEDURE:
On the Control Unit (X53-1290-XX)

Check transistor Q8.  If it is not a 2SC1815Y change it to this type
(Serial numbers 408XXXX-509XXXX).

For serial numbers before 408XXXX change R29 to 820 ohms and C41 to 100 pF.

In addition to the changes listed above check for the following signals:
 (You must check these at a dial frequency of exactly 14.000.000 MHz)

TP-1 6.0v (L18 adjusts)
TP-2 70 MHz    
TP-3 45.3 MHz
TP-4 6.35v (L10 adjusts)

Time required for this modification is 1 hour or less.