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Solved Have I broken my LCD Controller?

Discussion in 'Troubleshooting' started by Chrisinnewark, Jul 6, 2015.

  1. Chrisinnewark

    Chrisinnewark Member

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    Foolishly (as I now know) I unplugged one of the cables out of the back of my LCD Controller. When I plugged it back in the screen shows this. LCD.JPG
    I can't seem to reset it. Have I broken it?
     
    #1 Chrisinnewark, Jul 6, 2015
  2. WheresWaldo

    WheresWaldo Volunteer ( ͠° ͟ʖ ͡°)
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    remove it from the case and turn the potentiometer that controls contrast, it could be as simple as that.
     
    #2 WheresWaldo, Jul 6, 2015
  3. Chrisinnewark

    Chrisinnewark Member

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    It's working again now. After I'd left the printer off for a while, this time when I switched it back on the screen came back to life again.
    The only difference this time was that if unplugged my laptop from the printer as I wanted to use it for something else. Whether that was the reason it worked this time I don't know but I won't be unplugging those leads again any time soon. Lol
     
    #3 Chrisinnewark, Jul 6, 2015
  4. Mike Kelly

    Mike Kelly Volunteer

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    Sometimes you gotta power cycle the LCD if it gets a display error.
     
    #4 Mike Kelly, Jul 7, 2015
  5. Chrisinnewark

    Chrisinnewark Member

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    I found out what the issue was. Because my laptop was plugged in it was still powering the LCD. Once I removed the USB cable it reset the controller.
     
    #5 Chrisinnewark, Jul 7, 2015
    mark tomlinson likes this.

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