Question about Midland 79-290 120-Channels Base CB Radio

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Midland 79-290 won't power on

Radio is in excellent condition, ran and checked power wires with good continuity through the system, 12.5 volts. When you turn the power knob on, nothing happens. I tried shorting out the faceplate thinking that might be the problem, however, this did not solve the problem. I saw this has an internal battery for memory preset retention, which the manual said has to take up to 36 hours for it to charge. The radio has not been connected to power for quite awhile, does this have anything to do with the problem? Does this internal battery have anything to do with powering on? Any advice and solutions will be greatly appreciated. Thank you.

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Try to run a ground cable from the radio case (i.e. from the screw in the hagging bracket) to the ground terminal of your power supply!

Posted on Sep 16, 2008

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All the battery does is hold your presets...radio should run fine with no battery at all...just annoying when you turn if off and all presets are gone.

Sounds like your off-on switch may be gummed up from sitting too long.

Have no idea what you mean by "shorting out the faceplate", that really doesn't sound too good!

Posted on Sep 10, 2008

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Can't save radio stations, have to tune the radio everytime I turn the car on. It doesnt work if you hold the numbers down. Can you help?


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Check you manual for color or lable of these two wires, and place them as needed for the desired operation 1) Both on a constant 12 volt + source, or 2) BATT to a constant 12 volt + source and ACC to switched 12 volt + source.

I hope this helps. Please rate my reply with "4 thumbs up" if it did. Thanks!

Usually, purchase of a wiring harness designed specifically for your vehicle model and stereo solves this problem - as the required voltages and signals - including speakers - are made up and it is simply a "plug and play" operation. Newer cars will often require a "magic box" if you will, that uses some data signals in the car to turn on and off voltages for the stereo. Not installing the "magic box" will prevent much of the radio from working and can cause the loss of chimes, etc.

If your vehicle doesn't require the magic box

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2 Answers

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I have a jvc kds-16 receiver. It has been working for about 5 months with no issues. Now there is power to the head unit but I have no sound. I have checked all of the connections, nothing is loose, the...


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http://www.tintingbyfredjohnson.com

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While testing before final installation of the JVC KD-G240 CD Player, the only power I can get is to eject a disc and temporarily display the time. I cannot turn the unit on. After pressing the reset...


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