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Why does my speakers turn off ?

So I put a 12v switch on my pa but when I turn it off my speakers turn off why is that? I only want the pa to turn off .

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Why do you want a switch on your sub anyway?.... Anyway it's the remote turn on Power wire. It's the wire that needs to be connected to your switch as the hot wire.

Posted on Jul 18, 2013

  • Chris Portillo Jul 18, 2013

    Cause I don't want it on all the time & I put the positive in the fuse box negative on ground & pa in the middle prong & my pa is hooked up to one of the speakers wires on the back of the stereo

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Why doesn't my radio operate in the "PA" mode?


Some radio's do this (specifically Uniden) for some unknown reason. Ideally you plug a speaker into the PA output and when you switch to PA mode, the CB transceiver part should turn off and only your voice should come out of the PA EXT speaker to make it act like a personal megaphone.

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Uniden 40-Channel CB Radio (PRO505XL) "PA" acts like an extra external speaker!


because when you switch to PA it is because you are on the outside of your vehicle.When another party calls you ,you can hear them and then go to your vehicle flip it to cb and talk to your party.

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CB Plays out PA Speaker


it is possible that the PA speaker output is intended for a normal (unpowered, unamplified) speaker. Perhaps in your case the audio you hear from the PA speaker is only signal leakage from the PA Speaker connection.
To know.. connect a regular speaker to the PA speaker connector (any speaker, home audio, old car 6x9....). If the PA works and drives the temporary speaker OK, and you hear no CB receive, then the PA output is for a normal speaker, with leakage of CB audio.
It is just a guess, but easy to try.

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2 Answers

CB Plays out PA Speaker


Are you following the user manual that came with the radio?
NB-ANL/CB/PA SWITCH: When the switch is in the NB/ANL position, the Noise Blanker (NB) and Automatic Noise Limiter (ANL) circuits are activated.
The Noise Blanker is very effective in eliminating repetitive impulse noise such as ignition interference. In the CB position, the PA function is disabled and the radio will transmit and receive on the speaker that is connected. In the PA position,
the radio acts as public address amplifier. Your voice will come out of the speaker that is plugged into the PA. SP. jack on the rear panel. The radio does not operate when you are in the PA mode.

When you plug a speaker into the ext. jack does it kill the radios internal speaker? It should until you unplug it; if not and you are following the about you may have a wiring issue with the jacks.

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Pa problems


look on the back of the radio. See those two holes that you can plug a speaker into, well one is for CB the other if for PA. plug your Pa speaker into the appropriate connector and you have Pa capeablity. You must turn the switch to pa on front of radio.

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Trying to hook up switch to my pa .


Is everything grouded properly.

Jul 17, 2013 | Car Audio & Video

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NOT RECEVING OR TRANSMITING


Can you see the s-mete if it has one moving up and down on any channel? Do you hear any audio at all? could be a couple of things. Bad mic switch or mic cable, bad antenna or coax, bad audio amp. To check the audio amp plug in a speaker to the PA jack, put the PA switch on PA then press the mic to talk. If it works the audio is fine the mic is good and the mic cable is good. Noiw plug the speaker into the speaker jack, do you hear anything? If not then your antenna or coax has a problem, fix or replace antenna or coax.

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1 Answer

I only use the pa function.it doesn't always work.mic prob?when i switch to cb-no prob.


What type of PA speaker are you using? what OHM? and wattage.. A cb pa can only supply MAX 5watts into a pa speaker. It may be too big of speaker or bad speaker? if it works on cb.. wrong OHMS can make problems too..

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Have a uniden pc 68 elite it seems everything works the whene transmitting the needle moves a. but it has no volume it makes no noise i have tried a different mic i have put a new ext speaker on it and it...


Could be audio chip.
  • Insert external speak jack into pa port.
  • Turn volume down
  • Switch cb/pa switch to pa
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if you are getting audio from speaker ......chip is fine.

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