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I have a CP200 UHF RADIO.VOLUME IS ALWAY HIGH VOLUME I REPLACED VOL-POT ,PROBLEM IS STIL THERE.

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Soldering around the area is ok but most likely there's an open circuit wih respect to the grounding of the volume pot Replace R507 with a 100 ohm resistor. It is a surface mount but if you don't have one use a regular 100 ohm and ground it to the pot terminal and to pin 3 of the switch (s444).
will work fine.

Posted on Feb 27, 2012

  • Bob Madsen
    Bob Madsen May 14, 2014

    How do you de-solder the pots ground leads without damaging the board?

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Check and re solider the components around the volume pot. chances are that one is broken.

Posted on Dec 29, 2010

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