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World of Ham Radio 1997
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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 <<<
==============================================================================
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
==============================================================================
BULLETIN # 885
MODEL: TS-430S
SUBJECT: RECIEVER INTERNAL BEAT
For reports of an internal beat at 28.415 Mhz or at 21.526 Mhz perform
the following modification.
1. On the RF Unit (X44-1510-00) add a short jumper wire from the primary
ground of transformer T2 to the primary ground of T3.
2. Add a jumper from the ground of the secondary of T3 to the ground side
of capacitor C194.
3. Solder a jumper from the shield surrounding T1 to the shield surrounding
T2, T3 etc. It may be possible to just bridge the two cases together
with solder, either way is acceptable.
4. On PLL Unit (X50-1910-00) locate the position shown for capacitor C57.
This capacitor was not installed at the factory, install a .01 uf
25v disc ceramic capacitor.
This change is applicable to units prior to serial number 407XXXX.
Time required for this modification is 1/2 hour or less.