COBRA 1000 RECEIVE ?

[Switch Kit]

Cobra 1000 ? I got one the other day that needed a new final , works great after that but receive is strange ? The modulation meter detacts the incoming recieve , in otherwords you can see the incoming signals detected on that meter ? the more you turn it up from the volume control , the more you see the in the incoming signal , it's as if they are talking on your radio the way the needle moves with the incoming modulation , the more you turn the radio up ,the more it shows on the meter ? and if you turn it up to much , it will distort the incoming receive ? (as if the receive is somewhat congested)Would this be some kind of front end problem ? if so ? what might I look at to fix this problem ? thanks

 

[Space Cadet]

Perhaps the anti-spike diode that feeds power / audio to the final and driver? I'd give you a part number but I'm not at the shop and for some reason cbtricks is not responding.

 

[Switch Kit]

thanks for the reply SC . no . not the problem , but I did find out what had been causing this. The mic plug on the radio is connected to a small board inside the radio , after further investigation , it turned out the a few of the traces on the board had been shorting out (broken), more then likely from someone pulling on a mic plug cord ? or the plug itself had been jammed against something in the past , they were hair line fractures around the 4 pins from the plug into the small mic plug board , resoldered and added a few wire jumpers and it fixed all the problems it was having. turned out , I just needed to get away from the radio for a while and come back to it.

 

[Space Cadet]

Ahh, the old 'take a break' technique...Works wonders sometimes...