Question about Cobra 29 LTD CB Radio

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How to wire a d104-m6c mic to a cobra 29 ltd - Cobra 29 LTD CB Radio

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Posted on Jan 02, 2017

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SOURCE: 29 LTD CB Radio: whats the color to number wiring for cobra mic...

This is for a cobra CA50 mic
1-sheild
2-white
3-red
4-black

Posted on May 09, 2010

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SD Tech
  • 14553 Answers

SOURCE: I have a astatic d104

If you bought the mic new it came with a sheet telling what wires do what, most of those are six wire mics.

In your radio: 1=shield, 2=audio,3=transmit, 4=receive.

On most astatic mics shield is braided shield wire, audio is white, transmit is red and blue is receive.

The other two wires should be yellow and black, the yellow will not be needed and you may have to connect the black to either pin one or pin 4.

Best way to do this is wire the shield and receive first and connect mic, if you have receive, then go for the audio and transmit.

There are a couple of versions of this radio so you may have to experiment to get it right, Keep the solder connections neat and the wire short.

Let me know with a comment here if you have questions.

SD TECH

Posted on Dec 11, 2010

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1 Answer

Wiring diagram for cobra 29 ltd BT mic , when each color go


if you have another cobra mic that was previously used on a 29 it should fit . just about all 4 pin cobra mics are alike .You can even use them on Galaxy radios and others.

Jul 27, 2012 | Cobra Radio Communications

1 Answer

Service manual 1990 American LTD by Cobra


  • Hi, I can help.

  • 1990 was still a front mic. Even the side mic cobra LTD from 1988 and before are the same exact wiring set up except the mic input is on the side.
  • Go to this link to download the manual free. http://www.mediafire.com/?bip1205nozcpu3o and click on "Click here to start download from MediaFire.." and the PDF will drop onto your PC.

  • If you have any questions about that 29 let me know.
  • Hope this helps and thank you for using FixYa.

Regards, Tony

Sep 29, 2011 | Cobra 29 LTD CB Radio

1 Answer

Cobra 29 has a 5 tone roger beep . It works fine with a stock Mic . But when I use a d104 I get about a 2 second hum instead of the beep.Any ideas on what is causing this. Thanks


The d104 is a power mic. For what you have explained you have something gone array in your mic or the mic plug. The fact the d104 is a power mic should not make anything hum. With a lot of power behind your CB and the power mic things can sequel with the mic gain turned to high. But a hum is more than likely a bad mic. Try another one. The same kind of mic should be fine.

Jan 24, 2011 | Cobra Radio Communications

1 Answer

29 LTD CB Radio: whats the color to number wiring for cobra mic...


This is for a cobra CA50 mic
1-sheild
2-white
3-red
4-black

May 07, 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

My Cobra 29 LTD sometimes does not work even though the lights remain on. In other words I can't talk on it or hear anyone even though it appears to be operational


Your mic or mic jack is faulty. Try a different mic. In cobra 29's and some other variants, when you disconnect the mic, the audio is disabled. It will still receive, and transmit(possibly) but you will hear nothing from the radio.

It could be,
  • Broken wire on the back of the mic jack in the radio.
  • Broken wire in the mic cord.
  • Disconnected wires in the mic for the switch.
  • Dirty mic connection pins.
Most likely the problem is with the mic, and not the radio.

Oct 21, 2009 | Cobra 29 LTD CB Radio

1 Answer

Where does the pin on a mic go to on a cobra 29 ltd


1/ shield 2/ audio (usually white,it's the wire the shield is wrapped around) 3/ red 4/ black if the radio transmits without keying the mic. switch # 3 and # 4.Good Luck

Apr 25, 2009 | Cobra 29 LTD CB Radio

1 Answer

How to wire a power echo mic up theres 5 wires and 4 oins


I suggest buying a 5 pin to 4 pin adapter. Ebay has them for $6. I would go chopping wires on the mic. Cobra 29 ltd is a nice radio. Have one myself.

Apr 25, 2009 | Cobra 29 LTD CB Radio

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