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Uniden Madison stopped receiving

C186 is the capacitor Nomad is referring to:

1666007348788.png


But since your meters aren't moving, I am more inclined to think it is your 8v source. Check all the pins on IC4 for correct voltages:


1666008141190.png
1666008309673.png

Make sure the Green LED is on in RX. If not, check pins 3 & 6 on IC 4 for 8+v.

While you are at it, ask Dan up in the stickies to make you a copy of the Madison section in volume 230. you can request it here:

Good Luck
 

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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.