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Rci 2950 no audio period rx or tx

I have replaced the audio chip, all the regulators and even the transmit receive transistor, I believe it is tr 38, radio has carrier, but no receive signal on meter.

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  • Anonymous May 25, 2009

    I have the same problem only I know its not the speaker or anything cause I hear the speaker "thump" when I turn ther cb on

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  • 86 Answers

Check TR38 I have seen caps in the circut
go bad more then once if you have a schematic you should be able to find it if one
is bad,a capasator meter would help but you
can check them with a ohm meter.
Good luck.

Posted on Sep 16, 2009

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Good day I have an cobra 148 Gtl tx and rx a working but no out put


It might not seem obvious but on many, if not all, current CB radios have separate wires coming from the microphone for RX and TX. It seems like the mic wire for TRANSMIT may be open. It is a common failure.

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Ranger rci 2950 will not transmit


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Sep 16, 2012 | Ranger Communications RCI-6900F-25 CB...

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I had a Realistic Navaho TRC-458 Given to me it will transmit but not receive what could be causing this


Alot of problems could knock out the recieve in these radios, from audio amplifer failure to a bad tr-5, i would check or replace TR-5, these are famous for going bad! replace TR-5 with another good transistor of the same type and number! :-)

Jul 02, 2012 | CB Radios

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Rci 2950 no transmit


check your mic cord to see if you have a broken wire on the inside.You might want to get another mike for a spare but it could also be an audio transister.

Jun 30, 2012 | CB Radios

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I have a RCI 2950 comes on keyed up and stays keyed untill you turn it off. I have replaced the auto amp, all voltage regulators and the black diode with yellow strip below mic plug with no change. I need...


i have the same radio rci 2950. Ive had the same problem with mine,turns out with mine the processor would lock up,turning the radio off & on repeadly would clear the problem and the radio would work fine x-mit & recieve. the solution to fixing the problem is to replace the memory backup battery this battery works similar to a computer motherboard cmos battery when this battery goes dead all sorts of strange things happen to the radio wont transmit wont recieve or like your problem transmits continiously. the problem with replacing this battery is finding out what year & model your ranger 2950 is. the internet says only first generation ranger 2950s use the battery second genration & third generation do not use the battery. but the internet could be wrong. so i suggest getting a hold of (usa ranger.com) & give them a phone call or email and ask them about the year your radio was made. they may even service it for you or if you are electronic savvy you can do it yourself. the battery is located close to the main cpu on the front panel if yours uses a battery.

Sep 07, 2011 | Ranger Communications RCI-6900F-25 CB...

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WHEN U KEY UP IT WONT TALK


Do you have receive? If so you might have blew the voice chip. If you don't have receive or transmit you most likely blew those final transistors.

Mar 21, 2011 | Ranger Communications RCI-6900F-25 CB...

2 Answers

My ranger 2950 wont transmit or receive sounds like a relay problem but dont no for shour can you tell me what is wrong with that radio thank you.


could be a number of different problems causing this. I would start with your microphone make sure it is working. it is responsible for transmit & recieve. next check to see if the memory battery is dead this will also cause this problem. next check the regulators in the radio to see if they are supplying voltage.next check voltages in different parts of radio to see if all stages are recieving power follow these steps and something will show up also check your switching diodes to see if they are bad the diodes responsible for x-mit & r-mit of transceiver.

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I removed my Roger Beep from my Eagle Sidewinder 400, It still receives but will not transmit. What do I have to connect back up for it to start transmitting again? I'd be Thanking you for any help.....


If the radio is not going into TX, then you have not connected the TX line back up,

If there is no audio when you TX you have left the audio wire off.

The radio usually needs 4 wires.
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Audio (this carries the audio from the mic into the modulator)
Screen (ground cable (earth))
RX (not as common these days)

May 18, 2010 | CB Radios

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