Question about Galaxy Radios DX-949 40-Channels Base CB Radio

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Power wires shorted out. something smoked near the mic connector. The radio does still power up and recieve. It will key up if I cross the mic pins. checked the mic on another radio thinking it could have been a broken wire but, it works fine.

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  • 98 Answers

You probably burnt resistors,relays and transistors near front end sections. Need to take to shop or do yourself. Small solder pencil, solder ******, and change all parts and tiny relay box which may be a black square(but,it rarely fails) I would say transistors,capacitors,resistors. Best to let professionals have a look..Cb shops,Radio Shack, www.copperelectronics.com. Galaxy Radio.Inc.People who service radios; they may charge a good price $$$ though. About $18 to $30/Hr. Labor plus parts.

Posted on Apr 08, 2011

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1 Answer

I have no recieve transmits fine it was working then i seen a flash and no recieve


Try other mics what happen to me was the wire came lose and hit pin 6 which is power pin it may just have burnt the wire in mic plug

Dec 02, 2012 | Magnum 257 CB Radio

1 Answer

I'm trying to wire a galaxy desk mic to a cobra 200 10 meter mobile


  • The Galaxy desk mic (power mic) is already wired four pin and the Cobra 200 is a 4 pin already as well. So unless someone has messed with them the mic will plug right up to the radio as is.

  • But if someone has repined the mic then follow the pinout I listed below to get it rewired for the Cobra 200
  1. Pin #1 on mic connector - Black wire.
  2. Pin #2 on mic connector - White wire.
  3. Pin #3 on the mic connector - Blue wire.
  4. Pin #4 on the mic connector - Red wire.

  • If you look on the end of the mic connector it will have the imprint of the number for each pin on the mic.

  • If you have any comments please feel free to leave them here.
  • Hope this helps and thank you for using FixYa.

Regards, Tony

Oct 02, 2011 | Cobra Radio Communications

1 Answer

My radio is a Galaxy DX 98. It squeals when I key up


change "MIC" to a factory,or turn back Mic gain. Mic can short out or may have too much gain(power mics). Use standard dead Mic that was designed for radio. If that does not help,it may be inside radio, wires on MIC connectors need soldered again(make sure they don't touch th eothers.

Apr 23, 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

DX 2517 has a buzz when you turn up the power it get much louder dim the lites and it starts to fade.? how to repair thank you


sounds like an RF problem. If its barfoot, make sure the power wire doesn't cross the coax.

If its on a linear, make sure the coax does not cross and the power wires are not near the radio.

Also, if you are running a power mic, the gain may be too loud.

Jan 06, 2010 | Galaxy Radios DX-2517 CB Radio

1 Answer

I have no sound, even when I key mic. The meter goes up one time and not the next.


This could one or more of the following problems. I'll start with the ones I feel are most likely the cause, but you can check them in which ever order you like.

When the mic is keyed, you should not hear anything from the reciever. The mic's PTT (push to talk) button switches the transciever from recieve mode to transmit mode, if it didn't all you would hear and transmit would be screaching feedback. Also, during the transmit mode, the radio's meter should switch from indicating relative signal strength (or "S" units) to power out where 4 watts AM should indicate full scale deflection of the meter.

This makes me believe that you've got a intermittent connection in the mic circuit. This can be anywhere from inside the mic, mic cord, mic connector and inside the radio - from the mic jack. The cord is supect as it is always being twisted, pulled, stretched and strained under extremes of temperatures and humidity.

You can check the cord by simply replacing it or with a dummy load connected to the antenna, see if keying the mic and shaking the cable makes the power meter jump or bounce. Twist and pull the cord over its entire length - but pay particular attention to the strain relief points near the mic body and connector as these are typical points of failure.

Check contacts inside the mic, between the mic cord and plug, mic plug and mic jack on the radio to be sure there is no oxidation or broken / shorted wires.

There may also be a problem with a blow speaker, which would explain the lack of audio on the reciever. Connect an external speaker to the external speaker jack (if provided) or open the radio to connect a speaker to the one under test.

Least likely - but still possible is a fault with the antenna coax cable, antenna and / or mount. Look for split, crushed, or otherwise damaged cable along the entire length. Pay attention to pinch points, etc. Repair or replace as needed. Look for oxidation build up between the antenna and mounting threads - clean as best you can or replace. Check the coil (if any) on the antenna. Broken, burnt, etc.insulators over coils are indicators of a problems. Again, repair or replace as needed.

I hope this helps you identify the source of the problem - good luck!

Oct 30, 2009 | Midland 1001Z 40-Channels Base CB Radio

1 Answer

Dm 452 microphone


this radio is made by PEIRCE SIMPSON and is wired like a cobra.
pin 1 shiels or ground
pin 2 is audio
pin 3 is transmit
pin 4 is recieve

shield is a bare wire wraped around the audio wire.i dont know the colors of the wires in the echo mic.the transmit wire will have contiuity with the shield wire when the mic is keyed that wiregoes to pin 3 . there should be 2 wires left. check these wires one at a time with the shield wire one will have contiunity . this wire will go to pin 4 recieve.the other wire will go with the shield wire on pin 1
this is the way you find how it wires. it will take an ohm meter to find whice wire goes where.

james morgan
morgans electronics

Mar 09, 2009 | Uniden Bearcat Pro PC68XL 40-Channels Base...

1 Answer

Cant transmit


Hello Darren, Yes it sounds like the mic is wired bass ackwards,,! A cobra 25 mic wiring is
PIN #1- Shield or ground wire
PIN#2- Audio or Transmit modulation
PIN #3- Transmit or Dead Key
PIN #4- Receive Audio.
When your keying the mic, the RX wires are being connected to make the RX work,,,
*** Let me know how you get along with it. Either buy a new mic wired for your radio or you or someone comfortable with soldering needs to resolder the correct wires back on the mic plug,,,Like I said, let me know and have a great day,, Mechanic is back quiet!

Oct 21, 2008 | Cobra 25 LTD 40-Channels Base CB Radio

2 Answers

Cobra 148 gtl


First off check to see if your mic gain is turned all the way down. Second; if you have a power mic is the battery dead ir the volume of the mic turned down. If these check ok, look for a loose or broken audio wire in your microphone, and the connector (both ends can break). I have seen the wires break as far back as 4 inches from the mic head and the connector depending on how the user held the microphone, or pulled against the wire. if the problem is not found to be any of the above I suggest you take the radio to a qualified technician for repair.

Dec 11, 2007 | Cobra 148 GTL 120-Channels Base CB Radio

9 Answers

Mic wiring diagram


Want to wire cobra mic to a uniden washington radio

Nov 20, 2007 | Radio Shack TRC-447 CB Radio

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