LED Matrix Issue - LED line fault

Discussion in 'Digital Circuit Design' started by vikrant.ere, May 21, 2018.

  1. vikrant.ere

    Thread Starter New Member

    Apr 16, 2009
    I have a 24*8 LED Matrix. It was working fine till today. When I find my 23rd column 3rd led not respond to any changes, and rest 7 led in that column remain ON throughout.

    Has anyone came across such issue?? Removing 3rd faulty led may fix the issue. But my question is how to prevent such issue to occur.
  2. wayneh


    Sep 9, 2010
    Sounds like all 8 are not responding. Why did you single out #3 for mention - does it remain off at all times?

    A schematic, photo or at minimum a model number would help people understand what you're talking about.
  3. dl324

    AAC Fanatic!

    Mar 30, 2015
    How can anyone possibly answer a question like this?

    We don't know how the matrix is wired or what is driving it. Post a schematic.