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Uniden pc122xl - channel readout brightness

jrd426

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Sep 5, 2018
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Hi guys, is there a way to turn down the brightness on the channel readout for pc122xl
Thank you
 

Sometimes it helps to understand where that red dot is connected to on the display side. Its a16 pin common anode LED display (same as the Cobra 29 LTD and many others). Pin 4 of the first digit and pin 5 of the second digit are connected together before it gets to the red dot as shown in the schematic. I often work back to the source when I have trouble finding this common point on some radios.
16 pin common anode display.jpg
 
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Thanks guys. I was hoping there might have been a vr for brightness. My soldering skills are decent but finding my way around on a diagram as to where exactly to put the resistor could be a challenge. Ill familiarize myself with that section of the radio for starters. Cheers thx
 

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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.