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Electronics LCD wiring question

Discussion in 'Modding' started by thordiddy, 17 Jul 2004.

  1. thordiddy

    thordiddy What's a Dremel?

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    I just got my new Seiko L2014B5A in the mail and have begun wiring it. My question is, do I need to use pentometers or can I just wire it directly to the ground and +5V red wire? I dont really care about adjusting contrast and stuff, I just want to get it working for starters. The site for the LCD is http://www.shopeio.com/inventory/details.asp?id=445

    and the wiring diagram is http://www.eio.com/lcd2014.htm

    thanks for the help.
     
  2. coorz

    coorz Miffed

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    Well at least use resistors if you can't get potmeters. The backlight requires a resistor, otherwise it'll probably blow up.
    And it is quite handy to have potmeters,, otherwise you'd have a hard time getting a decent visual on the display.
     
  3. Hazer

    Hazer In time,you too will be relixalated

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    If you dont use the pot, you wont see anything even though the LCD is actually working. Do things correctly with patience.
     
  4. Skylined

    Skylined Minimodder

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    Greate piece of advice, and I also add, "and always use the right tool".
     
  5. thordiddy

    thordiddy What's a Dremel?

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    Okay, I wired everything, but I used a 100Ohm resistor instead of the potentiometer. When the lcd gets power, it stays blank and does nothing. Also, if I short pin 3, I get the typical test screen with the alternating lines. Does anyone have any ideas about what I am doing wrong?

    EDIT: Also, if I short pin 16, the backlight turns on. Wierd.
     
  6. thordiddy

    thordiddy What's a Dremel?

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    Okay, I got the LCD to display and everything, but I now have a new problem. When the lcd is running, the characters on the screen move around and become distorted. For example, when using the Winamp 2 Plugin, It will say Blink 182 and then change to Blnk 12 for no apparent reason. Has anyone ever had this happen to them?
     
  7. -Xp-

    -Xp- Minimodder

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    Sounds like a dodgy joint on one of the data lines. Check all your joints.
     

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