Question about Cobra 25 LTD 40-Channels Base CB Radio

1 Answer

Works sometimes and sometimes it doesnt.

My 25 will work sometimes and sometimes it will not. When it doesnt work the mic wont even key up. The power is fine and so is the coax. I have a cobra dynamike and it has a new battery. Any ideas.

Posted by on

  • darkside9 Jul 20, 2008

    I looked at that but didnt see anything that looked bad. but then again I could have over looked something. Thanks for the advice.

×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 90 Answers

Sounds like a "cold" or broken solder connection on the PC board.

Posted on Jul 20, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Cb works but there is no sound


turn volume and mic gain half way up, plug in an external speaker into the PA jack, flip PA switch and key up, if it doesnt squeal your audio final is blown or it could be so simple as mic wired wrong or broken wire. try another mic.

Mar 31, 2013 | Cobra 29 LTD CB Radio

1 Answer

The radio recieves great rf power works rodger beep works throws a good strong signal on other radios has a new mic but no modulation


Is this new mic wired for your radio? just because it fits the socket doesnt mean its right. Did the old mic do the same thing reason why you got the new one? just sounds more like a loose wire at the jack where the mic plugs in? has that connector ever been loose or needed tightened at any time?

Jan 03, 2013 | Galaxy Radios DX-44V 40-Channels Base CB...

1 Answer

Radio just makes whistle sound doesnt matter if mic hooked up or not same with antenna,worked great when bought lasted 2 days had fixed 2 days again had fixed again worked 1 day as soon as you turn on...


What type of power source is it hooked to? straight to car battery or some other power source? Sometimes cart alternator noise is picked up by radios. Try hooking the power source up differently

Mar 19, 2011 | Connex CB Radios

2 Answers

Cb is Keying Down instead of keying up when trying to talk


if you are transmitting fine Don't worry about the meter. Get an external SWR meter, they are better anyway.

Also, make sure the the switch next to the meter is all the way up on s/rf setting. thats for signal power and receive strength.

Aug 30, 2009 | Cobra 29 WX NW ST 40-Channels Base CB...

1 Answer

COBRA 25 LTD spikes without keying mike


buy a different cobra 25 4 pin mic and try that . If that doesn't work than you inherited a piece of junk .

Jul 29, 2009 | Cobra 25 LTD 40-Channels Base CB Radio

1 Answer

Have new dx959 doesnt get out very far talking 100yrds or so use rdking 56 mic mic works fine on old radio pc 78 and gets out fine also are 959 radios ok or junk has good reception


The DX959 has an output power setting knob. It's located next to the channel selector and is labeled RF Power. Turned counterclockwise will reduce output power. Turned clockwise will increase output power. Your switch is probably turned all the way counterclockwise resulting in low transmit volume.
Also, make sure the wiring for the RK59 is correct for the Galaxy. Even though it's a 4 pin plug, the pinouts may be different for the Uniden and Galaxy radios. Do a Google search for mic pinouts for your two radios to check.

Jul 12, 2009 | Galaxy Radios DX-959 40-Channels Base CB...

1 Answer

When mic is keyed, TX light illuminates but power meter does not


make sure your s/rf switch is in the right place on the radio is the most common problem i have found

Feb 05, 2009 | Radio Shack TRC-447 CB Radio

1 Answer

Cobra 25 ltd wx classic


the mics on these cobras have a receive wire in them so the transmit will still work even if the receive wire is broken,if this wire is broken the unit will not make any sound...........remove the plug from the radio end of the mic and check the connections on the 5 pin connector.....(could be a cold solder or broken wire) or try a new mic or one that is proven work on another radio
hope this helps.................good luck!

Dec 18, 2008 | Cobra 25 LTD 40-Channels Base CB Radio

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

1 Answer

No sound


The Cobra 25 requires the mic to be working for any sound to come out. My suggestion is that you first try a new mic. If this doesn't work, look real close at the board on the soldered side ( around the if section, thats the area that right under the waxed area on the component side of the board ) for cold solder joints ( broken lead solder) You may need a magnifing glass. Good Luck
Ed
NC Electronic
Mills, Wyoming

Dec 17, 2007 | Cobra 25 LTD 40-Channels Base CB Radio

Not finding what you are looking for?
Cobra 25 LTD 40-Channels Base CB Radio Logo

Related Topics:

74 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cobra CB Radios Experts

AnyMHz.com
AnyMHz.com

Level 2 Expert

489 Answers

Iron
Iron

Level 3 Expert

3018 Answers

Brad Brown

Level 3 Expert

13577 Answers

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

Answer questions

Manuals & User Guides

Loading...