Service BulletinAmateur Radio Division

Subject: TS-430S - TS-430S Noise Blanker ImprovementsDate: October 17, 1984

Some operators have indicated a desire to have their TS-430S noise blanker operate similar to the noise blankers in the TS-120/130S series. By performing the following modifications the operator will be able to increase the effectiveness of the TS-430S Noise Blanker Circuit.
On the RF UNIT (X44-1510-XX) change the following components.
  1. R80 change to a 100 K ohm 1/4 watt resistor
  2. R81 change to a 56 K ohm 1/4 watt resistor
  3. C125 change to a 560 pF 25v disc ceramic capacitor

Note this is an optional change and may not be performed under warranty.

No realignment is required.

Changes are circled in red.

©1984 Kenwood U.S.A.