Question about Uniden Radio Communications

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I have a uniden cb pro 510 xl cb radio that the speaker doesn't work. I cannot find where or how the speaker connects into the power board. Is there a wiring diagram for this available?

The 1987 Pro 510 xl is receives transmissions, but the speaker is not connected. how do I connect the speaker to the control board?

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Hi Anie,

START HERE: join yahoo group specific to your radio Make/Model, they have all the answers, plus you can download manuals and other stuff, i.e,. schematic diagrams for your radio.

I hope this helps.


Posted on Mar 04, 2013


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Posted on Jan 02, 2017

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SOURCE: how to install echo board in uniden pc66 cb radio


You have to cut the microphone line and put the echo board in between. The INput of the echo board should go to the end that goes to the microphone connector, the OUTput would go to the wire that leads to the CB board.Connect also the B+ and ground. The B+ should go to the switched B+ of the radio while the negative can go to any grounded area.

Good luck and kind regards.

Posted on Oct 25, 2007

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SOURCE: philips fm92 cb radio

Hi there soleman , it was common for Philips to fit fuse holders to both positive and negative wires on their radios , the red with black trace is neg the plain red is positive . Cheers T

Posted on Dec 05, 2007

  • 105 Answers

SOURCE: repair to my radio schack model PRO-2050 scanner the unit is mfg by uniden

be spicific,you did not mention, what are the problem of your unit,pls elaborate....

Posted on Jan 25, 2008

  • 1 Answer

SOURCE: mic wiring

Here is the wire diagram for the Galaxy:


I hope this helps you!

Posted on Apr 16, 2009

  • 1 Answer

SOURCE: Wiring diagram for accessory plug needed.

I am looking for the same wiring diagram. The headset Moto sells is a single earpiece with microphone, so how does that end up being a stereo connection Neto? Just curious how, or is there also a full headset with microphone? ( I dont' know, just asking)

Would this be a 4 ring TRS connector? Sleeve = ground, then left, right, and the tip as the microphone??

Posted on Sep 21, 2009

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In theory you could locate the AUDIO pin from the back of the mic jack, and add a resistor from there to the center pin of the ext speaker jack in the same manner as you would a PA jack.  But look into more before you do as I have never done it that way and Unidens sometimes have a funky way of wiring their boards.  If I had one laying around I would try it out but I don't.  best of luck!

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