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

1 Answer

Wont change channels

I have a midland 79-290 the unit powers up and receives and seems to transmit, but it is stuck on channel 9 and none of the functions seem to work

Thanks for the help

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

First, try resetting the faceplate CPU by shorting the proper pins on the faceplate to radio connector on the back of the faceplate with a piece of wire... They are marked on the connector, if this fixes it for you, enjoy!

If that doesn't work, then remove the back cover of the faceplate and check the faceplate connector itself for bad solder joints. As a matter of fact, check the entire radio for bad solder joints before looking any further.

I bought one of these radios a short time ago; Everything worked except for LSB.

I was told by the radio shop I bought it from that I'd have to wait until June to get it fixed, so I opened it up myself to see if it was something easy to find/fix, since I felt that if it was anything major it wouldn't be able to get AM or USB either.



In my case, I found bad solder joints on the faceplate connectors and a bad solder joint on one of transistors attached to the heatsink.

Once I fixed those two things, it's been a great little radio.

Be sure to reset the faeplate after resoldering and assembling, to clear any errors from the CPU.

Posted on May 22, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Why won't it change channels, transmit, and make static when turned all the way down?


did you have it on channel lock. I mean look at the knobs and see if you have a 9 - 19 lock ?

Sep 10, 2015 | Midland 75-785 Handheld CB Radio

1 Answer

Why wont my midland cb change channels


make sure the channel 9/19 switch is off / set to normal

Jun 09, 2014 | Midland 4001 40-Channels Base CB Radio

1 Answer

I have an almost new Midland 75-822 that the WX works fine on, but the CB doesn't seem to receive, or transmit. It operates normally, but no reception, and no evidence of transmissions.


you'll need a schematic and some knowledge. there a two diodes that control the rx and two that control the dx.Check them to make sure they are producing the correct power out put if they are not you should replace all 4

May 10, 2012 | Midland 75-822 40-Channels Handheld CB...

1 Answer

Just installed midland 1001z. When powered up, it sequentially flashes the channels (1,2,3,...etc.) over and over, but never stops so I can't tune it to a station. The exception is that when I flip the ch....


Well the CB you have should not cycle through channels like that for sure. It is not a progressive scan. Try messing with the channel 9/normal switch again. In rare occasions that switch will **** to the side just a tad. there is a PCB board inside that is responsible for the channels responding to the channel as the channel knob is turned. This board could be going haywire. If fooling with that switch does not take care of the issue then I would contact the person you got the Midland from immediately and have them get you one that works properly.

Regards, Tony

Apr 25, 2011 | Midland 1001Z 40-Channels Base CB Radio

1 Answer

How can i modify the midland 75-822 for more channels?


Modding your CB for more channels puts the radio into Ham bands which you need a license to transmit on, also modding a CB violates FCC part 95 rules and is therefor illegal to transmit with and the hams report most illegal transmitting on there band

Jan 30, 2011 | Midland 75-822 40-Channels Handheld CB...

2 Answers

Receivers complain about squeeling noise from my midland 1001z when I transmit. Is this an RF Gain setting problem?


I had the same (squealing) problem on transmit with the Midland 1001Z when I used it indoors as a base unit. The problem was my power supply: it broke into oscillation when drawing more than 150 mA at 13.8V. The 1001Z draws about 150 mA on Receive, and much more (but only about 900 mA) on Transmit. If using the 1001Z as a base unit, I suggest you power it with a fully-charged car battery indoors, or test your power supply to check if it can't supply the required 1 Amp, approx., on Transmit. It's a GREAT radio, just give it a good power supply. My power supply was defective out of the box, but now I have a good one and get great reports on signal strength and audio quality. Remarkable, for the low price and 3 year warranty. Good luck!

--Sky Junkie / Tucson, AZ / USA

Sep 27, 2009 | Midland 1001Z 40-Channels Base CB Radio

1 Answer

Wont change channels...stuck on channel 8


on this radio you have to put the norm and channel 9 switch to normal or up if it is on ch 9 positon it will not change channels.

Apr 16, 2009 | Midland 1001Z 40-Channels Base CB Radio

Not finding what you are looking for?
Midland 79-290 120-Channels Base CB Radio Logo

Related Topics:

203 people viewed this question

Ask a Question

Usually answered in minutes!

Top Midland CB Radios Experts

Iron
Iron

Level 3 Expert

3018 Answers

AnyMHz.com
AnyMHz.com

Level 2 Expert

489 Answers

Steve

Level 3 Expert

3287 Answers

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

Answer questions

Manuals & User Guides

Loading...