Question about Cobra 29 LTD CB Radio

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Cobra 29 ltd chrome quit transmiting still have pa and talk back changed driver and final still nothing any ideas

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  • Don Reiman May 11, 2010

    was it an exact final replacement? Meaning the same exact final, or did you get a final upgrade kit from ebay and only change the final?

  • Anonymous Jul 26, 2015

    Cobra 29 LTD Chrome: Radio quit transmiting. I still have P.A. and Talk-Back. Changed driver and final -- still nothing. Any ideas?

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External speaker wires are in the wrong holes

Posted on Jan 01, 2012

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Have you check your voltage regulator. 2 outer legs should read 13 volts middle 9 volt. Around and about.

Posted on Nov 21, 2009

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1 Answer

The calibrate needle wont move to the right to set whe trying to calibrate on cobra 29 ltd classic new radio


You have to press the transmit button to get the radio to send a signal that you can calibrate the SWR meter to. If you are pressing the transmit button and nothing is happening then it could be a blown final transistor, a bad switch, bad microphone connection etc.

Jul 05, 2014 | Cobra 29 LTD CB Radio

1 Answer

I have cobra 29 LTD that will power up, but wont talk or receive.


First make sure the switch on the front is not set to PA or Weather if the unit has the weather featurre.

Then look to see if the receive/transmit meter is showing any movement in either mode.

You had a Connex board installed? I bet that is wired wrong or a wire came off in the process

Do it yourself installation or a "expert"?

Dec 07, 2012 | Cobra 29 LTD CB Radio

1 Answer

I dont think my talkback works on my cobra 29 ltd chrome. am i doing something wrong?


was it already installed or did you set it up ? If its a talk back that is an s.m.d. then it is usually controlled by the rf gain and the delta tune .Some will mount it to be controlled by the mic gain.Others try it out by attaching a resistor to the PA and external speaker plugs on the back of the radio. you may have to use a bigger resistor or even a smaller resistor to get it to work the way you want it to .

Apr 21, 2012 | Cobra 29 LTD CB Radio

1 Answer

I have a cobra 29 LTD that has no audio in the PA mode or the CB (transmit or recieve) mode i've changed mics and also changed the audio IC to no avail. where do i look now?


look into buying a new radio. If you had researched further you would have found out that unless you are on cb your radio will not operate . If you are on PA the you can only transmit through the PA system not the cb. If you changed the audio IC then you probably did a cold solder on it. You need an external speaker to operate the pa mode and an external speaker to operate the CB mode .If you decide to fix it more it will cost you more then buying a new radio.

Jul 14, 2010 | Cobra 29 LTD CB Radio

1 Answer

29 ltd classic wont transmit


Hi,
Great radio when it works.
If you have your settings on CB - not PA - -be sure that your Cobra has that setting selected.
If CB -is selected and still nothing - be sure you have a working mic. These wires are fragile and can break internally. One easy way to check is to borrow a cobra mic or even drop by a CB repair shop and ask them to do a mic check with the mic - it is free.

If you have a bad mic replace it and all should be well.
If your mic is good and it still doesn't transmit you will need to replace the finals in the unit. It is common that these burn out of you got too close to someone with too powerful a radio. The CB shop will need to look at it further and repairs should not be over about 40.00.

Good luck with your Cobra.

Mar 31, 2010 | Cobra 29 LTD CB Radio

1 Answer

Need instructions on how to swr my cobra 29 ltd bluetooth


You insert an SWR meter in the antenna line, usually one end goes into the Antenna OUT socket, and the Antenna plugs into the SWR meter, you then tune you antenna coupler, inductor, & final PA, in the final stage, until you achieve a 1:1 SWR reading, this is however quite hard to achieve, so simply tune for the closest 1:1 SWR that you can achieve.

Feb 22, 2010 | Cobra 29 LTD CB Radio

1 Answer

Cobra 29 chrome


you could have a bad soilder but probably your voltage regulator went out.

Dec 15, 2009 | Cobra 29 LTD CB Radio

1 Answer

Cobra 29 LTD Classic not transmitting or receiving


ant. light should only come on if you have a high vswr a bad thing did you check that cb/pa switch is set to cb check your swr this is not a good place to mount ant. as it is close to metal of back of cab

Dec 20, 2008 | Cobra 29 LTD CB Radio

2 Answers

I have no reciving in a cobra 29 ltd chrome


Bad switch. It's that simple. The factory switches are crimp together junk. You may be able to use a pair of needle nosed pliers to softly squeeze the case of the switch together to correct the poor contact in side of the switch, but, if it gets a lot of use you may need to replace it altogether. Or try adjusting

Thanks!
Dodgem

http://dodgem250.angelfire.com

Apr 29, 2008 | Cobra 29 LTD CB Radio

1 Answer

Losed all


The talk back may be nothing more than a 10 ohm resistor shorted across the pa/external speaker outputs. If this is the sitution, the resistor may have damaged the audio chip. Remove the resistor and see if this corrects the problem. If not you may need to replace the audio chip. Hope this helps
Ed
NC Electronic
Mills Wyomign

Jan 06, 2008 | Cobra 29 LTD CB Radio

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