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Timeline 20x4 Backlit LCD

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  • Timeline 20x4 Backlit LCD

    I have the above lcd and have been using the schematic from http://www.jarcom.com/inmotion/ and haven't been able to get it to work. I got another one thinking I might have burt it out but that isn't the case. I checked the schematic and also the pinout and they are fine. I also don't have any shorts. Has anyone gotten this lcd to work?
    Rav4MP3
    BookPC - Celeron 500 - 128 MB - 10 GB - Pioneer Slot DVD
    IRMan: 1 Pioneer Remote; 2 Credit Card Remotes - USB Keypad - RF Keyboard
    5.8" LCD - 40 x 4 Backlit LCD Display
    Running: WinME - Winamp Album List 1.36 Plugin - PCRemoteControl - PowerDVD 3.0

  • #2
    Make sure you have the contrast adjusted correctly.

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    • #3
      I adjusted it both ways. And nothing.
      Rav4MP3
      BookPC - Celeron 500 - 128 MB - 10 GB - Pioneer Slot DVD
      IRMan: 1 Pioneer Remote; 2 Credit Card Remotes - USB Keypad - RF Keyboard
      5.8" LCD - 40 x 4 Backlit LCD Display
      Running: WinME - Winamp Album List 1.36 Plugin - PCRemoteControl - PowerDVD 3.0

      Comment


      • #4
        You should be able to adjust the contrast so that the whole displays blacks out. Maybe you have one of the displays that needs a negative voltage on the contrast adjustment.

        Comment


        • #5
          Yes I do. It says that but I don't know how to hook it up properly. Can you edit the imotion schematic to properly show this negative voltage?
          Rav4MP3
          BookPC - Celeron 500 - 128 MB - 10 GB - Pioneer Slot DVD
          IRMan: 1 Pioneer Remote; 2 Credit Card Remotes - USB Keypad - RF Keyboard
          5.8" LCD - 40 x 4 Backlit LCD Display
          Running: WinME - Winamp Album List 1.36 Plugin - PCRemoteControl - PowerDVD 3.0

          Comment


          • #6
            you try to connect the pin1 of the pot to -5v, pin2 (center tap) to your Vlc (Vee) and pin3 to ground
            20x4 is weird. i have it hook up and nothing work. now it work but only show me of 2 lines work out of 4 lines.

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