Question about Cobra 29 LTD CB Radio

1 Answer

My rx tx lights up on my 4300hp connex when i key up mic

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Cobra Master
  • 1,795 Answers

Its supposed to

Posted on May 18, 2014

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 6 Answers

SOURCE: tx: fine rx : no..

Your power output has blown, they are called your "finals" they can be replaced quite cheaply.

Posted on Sep 05, 2009

  • 1 Answer

SOURCE: when i key up the mike the tx/rx light and the ant

your swr setting are off wack fix your swr

Posted on Oct 09, 2009

  • 1274 Answers

SOURCE: Red RX/TX and red ANT light on my CB

Well,first hand ,some cobra radio,s have red some have green RX/TX lights, but are you modulating? Some green lights turn red. What is your standing Wave on the antenna,s? You need to check it and the output of the radio. To do this you need a watt or field strenth meter. Can get one at Radio Shack. Your standing Wave is ok as long as it is below a 2. That has to be done on the antenna. ..hope this helps...

Posted on Mar 12, 2010

Testimonial: "Thx the rx/tx light is supposed to turn red I found out. Still trying to get the antenna prob fixed though."

  • 66 Answers

SOURCE: cobra 29, no rx, no tx, pa dose not work, good

Not sure which model you have as there are at least 13 cobra 29's. I am using the LTD as an example. You say good mic? Is it made for this model? If it is good then I would have to say the final audio stage is not working. The TA72222AP is the IC that is the final audio amplifier. Check pin 1 of the TA72222AP ic for 12 volts. If 12 volts is present then replace the audio IC TA72222AP. If 12 volts is not present then you have power supply problems that are internal. The conclusion I have made is based on no rx audio, ( could have been the jack at the pa and ext spkr) but you say they don't work either, also no meter movement during modulation check (that does not need a spkr to make the meter move) so yes I'm 99.99% sure its the final audio stage is a bad. If your model is not the LTD then the IC could be different but still the same audio final is bad. Replace the part which should be fairly inexpensive. If it uses a metal heat sink be sure to apply heat sink grease when installing new part.

Posted on Feb 27, 2011

  • 158 Answers

SOURCE: When Mic is keyed TX illuminates but no green nand

Get a SWR-PWR meter to put on the line between the radio and antenna to see what it is doing.

Posted on Feb 28, 2011

Testimonial: "Thanks. MIC WAS BAD"

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

NO TRANSMITT


failed driver final transistors or voltage supply to driver and final

if your RX is aok then chances are the PLL and TX mixers etc are aok leaving only the first answer or a broken mic or TX switching circuit caused prob by a bad mic cable

Feb 19, 2014 | Connex 3300 240-Channels Base CB Radio

1 Answer

My tx rx light comes on when i key mic on my connex 4300hp ,,why


Check the mic wires inside the connecter, there might be a loose or broken wire that is making an intermittent connection.

Dec 28, 2013 | Cobra 29 LTD CB Radio

1 Answer

Connex 3300hp not receiving at all rx tx light on front not on, key mic turns red


MAKE SURE ALL THE CONTROLES ARE SET CORRECTLY R-R GAIN CLOCKWISE FULLY, SQUALCE COUNTER CLOCKWISE FULLY AND HAS THE RADIO BEEN MODIFIED FOR THE 11 METER BAND BY SOMEONE

Feb 25, 2013 | Connex 3300 240-Channels Base CB Radio

1 Answer

Wire 4 pin turner plus three mic up


pin 1 gnd
pin 2 audio
pin 3 tx
pin 4 rx

Dec 24, 2012 | Connex CX-4300HP CB Radio

1 Answer

Could you please tell me what COLORS that i need to put where when wiring a Superstar DM 452 to a Galaxy Saturn base station radio?


Don't worry about colors. look a the mic switch connections. one wire will be a common ground for TX & RX the middle wire would be ground(pin1) the n/c side will be RX pin4 the N/O side will be TX.... the same for the audio element side, one will be ground and the other will be audio pin 2.. this works for any mic and any radio.


pin1 ground pin 2 audio, pin 3 TX, pin4 RX.. standard pin outs cobra / galaxy/connex exports

Feb 26, 2011 | Radio Communications

1 Answer

Put another **** on 29 ltd and lost key up and receive but it still lights up. What you thank is wrong. 5 different mics, all work in my other radios. I heard something chatter and it would not tx or rx...


Check to make sure that there is noting shorting out inside of the radio. some mic plugs can turn from overtighting the mic connector.. also check the pins they may be broke or compressed too much and won't make connection to any mic.. Pin 1 is ground and pin 4 is rx.. take a jumper wire across those and see if you get rx back. same for tx pin 3.. jumper pin 1 and 3 should have a key up. pin 2 is your of course audio. these should be first things to check. cobras unidens and galaxys, connex, genlee etc. are wired the same. midlands and radioshacks ge are different. so make sure your mic is wired for a cobra or galaxy also.. any mic will work on any radio. as long as is it wired to it correctly....

Dec 15, 2010 | Radio Communications

1 Answer

Connex 4600 turbo radio stays keyed up even with mic disconected


Bad RX/TX Transistor? I don't have a diagram for the 4600. Sorry!

Mar 28, 2010 | Connex 4600 Base CB Radio

Not finding what you are looking for?
Cobra 29 LTD CB Radio Logo

Related Topics:

39 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cobra Radio Communications Experts

AnyMHz.com
AnyMHz.com

Level 2 Expert

500 Answers

Brad Brown

Level 3 Expert

16043 Answers

yadayada
yadayada

Level 3 Expert

76691 Answers

Are you a Cobra Radio Communication Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...