Question about Cobra 22 CHANNEL 2-WAY RADIOS

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Cobra PR4700WX -none of the controls work

Is there a common fix for this? When I turn the unit on, no matter what button I press, nothing at all happens. Is there a lockout that's happening or is this a more serious problem?

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  • Watermonkey Jan 07, 2008

    Thank you for the troubleshooting assistance. Based upon what you wrote, I guess I'll be taking it in to have a technician look at it, as none of your suggestions changed the behaviour (or lack thereof) of the radio.

  • dwags Jan 18, 2008

    i have the same problem only mine is a pr4750wx. holding the unlock button does not work, none of the buttons work. im ready to toss it out. any suggestions???

    Thanks

    D.

  • jake47 May 11, 2010

    need info on pr4700wx cobra its stuck on vibrate

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If you find that the LOCK/MODE button does not correct the problem, I have discovered that the microphone button on the inside has a contact patch mounted on the board. This contact patch is like a piece of scotch tape with a metal dot in the center this slides off to the side and leaves the MIC deppressed continuosly which in turn will lock the radio. I have found this on several radios. Once you center the patch place just a small amount of super glue to the edges and yo will have no more problem

Posted on Nov 28, 2009

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Your suggestion to check the alignment of the tiny disk on the TALK button switch was spot on. I was ready to throw away the radio, but five minutes of tinkering and it is working like new. Thanks!!

Posted on Feb 28, 2015

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Hi,

Your concern might be a simple case of "the radio is in locked mode" which can be verified with the presence of a padlock icon in the uppermost row of icons.

If it is so, turn it off by pressing the Lock/Mode button for a couple of seconds or till you hear a double beeping sound and/or the lock icon disappeared.

If there is no lock icon and none of the buttons will work, try to do a hard reset by removing the batteries and try again.

If none of the above will be corrective, your unit may require the services of a qualified communications technician since the problem may either be firmware or touch pad/logic circuitry.

Hope that this be of help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Posted on Jan 06, 2008

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I want to thank jimp19550 for the tip ( on the microphone button on the inside has a contact patch ). That was the exact problem on my radio. I re-centered the contact and it was FIXED !!!
Cobra PR4700WX -none of the controls work - cobra-pr4700wx-none-controls-work-lgj4ywxs5nq5gizwefkzvzxa-1-0.jpg

Posted on Feb 04, 2016

This suggestion fixed the problem, thanks! (Ptessing the lock/mode button for a couple of seconds...)

Posted on Jul 18, 2008

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Hello horndog78,

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Hi again,

It would seem that you posted twice. As responded to in your other post, the manual is here.

Cheers.

Mar 16, 2008 | Cobra 22 CHANNEL 2-WAY RADIOS

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Hi,

For the Cobra PR4700WX:
The user's manual is available here
To turn on/off the long range mode - (If you are referring to low & high power); Press and hold the Hi•Low/Enter button for two seconds.
Alternately, if you are referring to the Light/Max Range (receive sensitivity), 3 options:
1. To briefly turn off auto squelch - Press the Light/Max Range button for less than five seconds. If you hear two beeps, you have turned the maximum range extender on.
2. To turn maximum range extender on - Press and hold the Light/Max Range button for at least five seconds until you hear
two beeps which indicates the maximum range extender is on.
3. To turn maximum range extender off - Press and release the Light/Max Range button or change channels.
Probable reason that "fishing was all right but for hunting there is to much static" is becasue these radios operate on line of sight principle. Anything that obstructs the linear view would reduce signal strength/range. There is not that much obstruction when fishing compared to that when hunting in the woods or rough uneven terrain.
Please note that when using Channels 1 through 7 and 15 through 22 on high power, the Hi icon will be visible on the display. When using those channels on low power and on Channels 8 through 14, the Low icon will be visible on the display.

For the Cobra PR3500DX:
The user's manual is available here.
The transmission message icon off when not in use - this icon will only display if the radio is receiving something or if your are pressing the PTT button.
The other three the transmission signal is on at all times - indicates that either you are transmitting (unlikely) or the radio is in constant receive mode (most likely). I would venture a guess that the Auto Squelch is switched "OFF" or Maximum Range is switched "ON"

Both the 4700 & 3500 has Power Saver and it is a built-in feature. Your radios have this unique circuit designed that extend battery life. If there are no transmissions for 10 seconds, the radio will automatically switch to Battery Save mode and the Power Saver icon will flash in the display. This will not affect the radio’s ability to receive incoming transmissions.

Hope that this be of some help/idea. Pls post back how things turned out or should you need additional information.

Good luck and kind regards.

Nov 07, 2007 | Cobra 22 CHANNEL 2-WAY RADIOS

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