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no tx on cobra 29 ltd

scootter

Member
Oct 18, 2010
2
0
11
got a cobra 29 ltd no tx and no pa. changed final and driver but no change, you can hear mic key up on speaker but no power on meter and light go's out. it also has low power at t1 so i put in a new one but still low power like 4 to 5 watts, my other radio has 13 watts.:confused1:
 

5 watts peak output?
There's a chance the the driver is what is showing that 5 watts; and the final isn't working. Seen that a couple of times. Could be something else; but I would check that first. If you have another final laying around - replace it.
 
No TX AND no PA, could be either microphone, mic jack, CB/PA switch or wiring, wiring from mic jack, and/or audio IC chip. I'd check those FIRST, and then move on from there.

Once I got the PA function working, then I'd move on to the RF portion.

Keep us posted.

Good luck!
 
no tx cobra 29ltd

thanks guys for the help still checking it out,also trying to get my bench together. just got a tower for my antenna also trying to finsh the drywall in my new radio room. to many things to do and not enough time.:thumbup:
 

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  • @ heartbreaker3473:
    Hello gentlemen and Ladies. I have the dreaded RCI-2990 receive issue where my radio gets distorted when people get close to my location. I found the C90 Capacitor, but I can not for the life of me find the C89 capacitor. Can or does anyone have a picture of the exact location of C89 ? Thank you in advance, Wes
  • @ AudioShockwav:
    Wes, it's better if you start a thread on the main forum, more people are going to see your question.
  • @ heartbreaker3473:
    Okay, sorry, will put in a forum
  • @ heartbreaker3473:
    I put it in the general disscution help area and started a new thread. Thank you for letting me know.