The Defpom Forum, for RadioMods, S&M Software and Music by The Defpom

I have an RCI 2950 radio that has a constant high level static noise coming through the speaker even with the volume and rf gain controls completely turned down. This noise sounds like a constant skip signal but it does not include any actual incoming signals. The noise is present even with the squelch control fully activated. As you turn up the volume control the regular receiver reception takes over and finally overcomes the static noise but it seems to always be present.

Anyone have any ideas what might be causing the problem.

Thanks......kwc

You have a problem with the voltage regulator circuit

Rick.

Thanks for the reply. I'll look into this area and see what I can find. I do know that diode # D105 is blown out. I believe this diode is for reversed polarity protection.

If the polarity got reversed and some point in time and blew out this diode, what other components might be affected?

Thanks in advance for your input and help! I really appreciate it!

kwc