Anyone know of a way to change the mic connector on the radio from a 5 pin din to a 4 pin cobra/uniden arrangement? I hate RadioShack mics! If so please contact me at timlake@suddenlink.net.
Thanks,
Tim Lake
Thanks,
Tim Lake
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Realistic trc-490 mic problems
- Thread starter timlake
- Start date
yes it is SIMPLE...
the top pin is a dummy pin... there is your first hint
http://www.cbradiotalk.com/viewtopic.php?f=9&t=41665
TRC-490 mic problem
Thanks for trying but this really doesn't help. There used to be a small board attached to the 5 pin connector in the radio. Now all that remains is 4 wires, the audio and shield, and a pink wire and a black wire. The 5 pin din connector and the little board are gone. I have seen another of these radios so I compared them.
I don't know where to go from here. Is it as simple as hooking these wires up to the connector in the proper order? If so, what order? If the coax and shield are the audio, which is tx and which is receive? What function did the little board serve that was attached to the 5 pin din connector on the radio?
Thanks for the help.
Thanks for trying but this really doesn't help. There used to be a small board attached to the 5 pin connector in the radio. Now all that remains is 4 wires, the audio and shield, and a pink wire and a black wire. The 5 pin din connector and the little board are gone. I have seen another of these radios so I compared them.
I don't know where to go from here. Is it as simple as hooking these wires up to the connector in the proper order? If so, what order? If the coax and shield are the audio, which is tx and which is receive? What function did the little board serve that was attached to the 5 pin din connector on the radio?
Thanks for the help.
TRC-490 mic problem
OK,
It IS as simple as connecting the wires in the right order, and I figured out the correct order. Now everything works as it should but I'm getting alot of regenerative feedback when I key the mic. If I turn the mic all the way down I get good reports, but if it is up past 1, then I get a loud squeal when I key the mic. I suspect there is a ground that needs to be added some where, perhaps to the shield on the mic connector.
Any suggestions?
Thanks so very much for the earlier help. The link you gave me didn't fix the problem, but with it and some other info I got off the web, I was able to get it working, at least to this point. If I can fix the squeal, I'll have it licked.
OK,
It IS as simple as connecting the wires in the right order, and I figured out the correct order. Now everything works as it should but I'm getting alot of regenerative feedback when I key the mic. If I turn the mic all the way down I get good reports, but if it is up past 1, then I get a loud squeal when I key the mic. I suspect there is a ground that needs to be added some where, perhaps to the shield on the mic connector.
Any suggestions?
Thanks so very much for the earlier help. The link you gave me didn't fix the problem, but with it and some other info I got off the web, I was able to get it working, at least to this point. If I can fix the squeal, I'll have it licked.
