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Old 02-03-2018, 03:48 PM
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Uniden 520XL CB internal speaker not working

I had my Uniden 520XL located in the center console for over a year, so I had an external speaker. Everything worked fine. I recently moved the 520XL to a Rugged Ridge footman loop (over rear view mirror) mount and don't need the external speaker in this location. The problem is the internal speaker does not work. It worked at one time. The external speaker still works, but I don't want to use it now. Would it be possible that using an external speaker for a long time would somehow make the internal speak quit?

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Old 02-03-2018, 04:30 PM   #2
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Originally Posted by Jim Bo View Post
Would it be possible that using an external speaker for a long time would somehow make the internal speak quit?
Unlikely. Both speaker jacks are empty of any plugs in them?

Also keep in mind that the mic has to be plugged in correctly or there will be no sound from the speaker.

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Old 02-03-2018, 04:48 PM
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I figured it out. When an external speaker is plugged in it pushes down on a tab and un-shorts a connection. This is how the radio senses that there is an external speaker connected. I think having an external speaker plugged in for a long time made the tab not spring back fully to the short position. I created a short with a screwdriver and viola, the internal speaker works. Now I need to decide how I want to fix it. I'll first try to bend the tab so that it creates a short as it's supposed to. This would allow an ext speaker to work in the future. Else, I'll solder something. I guess trying to explain the problem to the forum made me think through the problem.

But thanks for the reply Jerry.
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Old 02-03-2018, 04:54 PM   #4
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A short is a bad thing and causes smoke or blown fuses, you just want to bend the jack connector a tad so it makes a more reliable connection.
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Old 02-03-2018, 05:44 PM
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Jerry, I was able to bend the tab. It's not easy to do to get a good connection so I put a very small dent in the piece it contacts. I suspect the next time I use the ext jack the tab may not spring back fully when I pull it out again, but that's OK. I don't anticipate using an external speaker for a long time.

No smoke this time around.
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Old 02-04-2018, 05:40 PM   #6
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I bought a Uniden 520 a few months ago and funny, the external speaker does not work but the internal speaker does. Since I don't use it with an external speaker, I didn't bother to send it in for warranty service. I'm sure it's got the same problem as Jim Bo, only in reverse.

In any case, it's a great little radio!

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