Cobra 29 LTD CB Radio Logo
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Anonymous Posted on Jun 19, 2014

Cobra 25 soundtracker with nightwatch

The needle is moving showing its receiving ,but no sound.I already tried a external speaker with no luck.

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James Overbey

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  • Posted on Jun 20, 2014
James Overbey
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Plug the external speaker into your PA jack and select the PA switch. If PA works then the audio chip is good. The cobra 29 must have a mic plugged in to get receive audio, You may have a broken wire at the mic connector.

  • James Overbey
    James Overbey Jun 20, 2014

    You could throw the meter in the trash and it would still have sound coming out of the speaker, DO NOT adjust anything inside the radio!

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  • Posted on Jun 20, 2014
Mike Charette
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First of all if this is a new radio send it back to people you got it from.Second seams to be just a tight needle Ithink its vr2that adjusts the needle?you may want to look it up @ www.cbtricks.com

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5 Related Answers

Anonymous

  • 2 Answers
  • Posted on Jan 06, 2009

SOURCE: cobra classic 29 ltd

Had fixed the same problem yesterday. My cobra worked when it wanted to, when it didn't it looked like you explained. I found out that on my cobra the blue wire on the mike connector was broken. When it disconnects, no sound. after soldering, everything works fine.

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Anonymous

  • 36 Answers
  • Posted on Feb 08, 2008

SOURCE: Sound, But VERY VERY quiet

I have the identical model and also had the same problem. I took it in to an appliance repair and they found a problem with the output circut something about a burnt transistor is what they said. I had them replace it and has been working fine since. Hope this helps.

Anonymous

  • 40 Answers
  • Posted on Mar 08, 2009

SOURCE: information for ordering parts

find a old cobra radio and get the switch out of it or go to your local cb shop and you should be able to get one.

thndr143

  • 141 Answers
  • Posted on Jan 30, 2010

SOURCE: COBRA 29 NW THE NIGHTWATCH DISPLAY STOPPED

9 out of 10 times, the resistor that feeds the voltage to the nightwatch lights burns out.

Anonymous

  • 1274 Answers
  • Posted on Oct 08, 2010

SOURCE: I have an old cobra 25.some times it doesnt make

Hi,my name is John. Take the cover off, turn the radio over to solder side up, look at the solder joints real close, you might need a magnifying glass. you will need a solder iron to heat up the solder joints, look closely, re-solder it , good luck,my name is John.

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I bought a new Cobra CB Radio, connected the power and plugged in the mic, installed and connected the antenna, turned it on and I seem to have NO audio at all. I turn the squelch all the the way over and...

Hello bcousins.
Welcome to FixYa.
My name is John, and I will be assisting you with your issue today.
Turn your RF GAIN to MAX . Check that your antenna is grounded to the body.
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With an antenna connected, volume set to 1/4 from minimum, squelch / RF squelch fully counter-clockwise (or minimum) - do you hear anything from the speaker? If not - plug an earphone / external speaker into the external speaker jack on the rear - any sound? If not, do you see the S/RF meter needle moving (not resting on 0 or 1)? If not - find a channel with activity on as indicated by the S/RF meter first.

Try with another antenna connected if possible, or transmit with another CB radio on the same channel nearby - and try again.

If you aren't able to receive sound (not just static) - or indicated signals on the S/RF meter, the radio *MAY* need to be professionally serviced. Make sure you get an estimate for the work before authorizing - otherwise you may be spending more on a repair than the radio is worth. It is not uncommon to have to pay a diagnostic fee - that most shop will put toward the repair if allowed to do the work.

Good luck!
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No audio out of the radio's speaker or external speaker jack, but has audio from the PA jack.

The problem could be a range of things. Generally these radios use the same amplifier for the PA and receiver output. If the radio is receiving (usually the needle on the meter moves) then it may be bad contacts on the relay. Before pulling it apart check that the squelch setting is set to low and the RF gain is high. Check that the external speaker jack is not damaged (internally). If all seems OK visually try to connect one wire from a speaker (8 ohms) to the chasis of the radio and then use the other wire to probe different wires that are connected to the external speaker jack and on board speaker to see if you get an output there.
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Information for ordering parts

find a old cobra radio and get the switch out of it or go to your local cb shop and you should be able to get one.
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