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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 # 913
MODEL: TS-940S
SUBJECT: Signal to Noise Ratio Improvement
The following changes will reduce the tendency of the Zener Diode in the
Noise Blanker circuit to cause an increase in the ambient noise level.
This change ensures that no current flows thru this diode in the normal
receive position.
Parts Required:
560 ohm 1/4 watt resistor
Procedure:
On the IF UNIT X48-1430-00 change R23 from 330 ohms to 560 ohms.
This change will be incorporated in all models beginning with serial number
603XXXX.
Time required for this modification is 1 hour or less.