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Thread: CrystalFontz LCD

  1. #1
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    Join Date
    Feb 2000
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    38

    Question CrystalFontz LCD

    I just got a CrystalFontz 4x20 display and am having trouble getting it to work. I've tried hooking it into the serial ports of two comps using a DB9 Female>Female connector. It sounds as if for the backlight you need to hook it up to some power, but isn't it supposed to work non-backlit with just the serial connection?

    Anyone know where I can find more info?
    GR1NCH
    GR1NCH
    [email protected]

  2. #2
    Maximum Bitrate
    Join Date
    Nov 1999
    Location
    Sydney NSW Australia
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    581

    Post

    Check the serial cable that you are using.
    make sure its not a serial extantion.
    I might be wrong but i think those LCD displays need to have serial cables with pins 2 & 3 cross linked. Like normal serial cables.

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    Fosgate
    Fosgate

    System Comp V3 - In progress.
    Low power MB with C7 CPU, DC-DC PSU, car ECU link, USB TV, GPS, 7" TFT, Wireless, Voice.

  3. #3
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    Feb 2000
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    38

    Post

    The one I have is made by Belkin Components, it says on the box:

    Direct Cable Conection
    PC to PC File Transfer.
    DB9 Female/Female
    SERIAL

    Is there anyway I can test to see if the cable is the problem?
    GR1NCH
    [email protected]

  4. #4
    Low Bitrate
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    Dec 1999
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    st. louis
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    107

    Post

    I had problems with my Belkin serial DB25 cable for my LCD. Nothing would show up. As soon as I switched to a non-belkin cable...all was good. Sounds like you might need to try the same thing. Mine said it was for PC to PC also.

    [This message has been edited by Old El Paso (edited 03-10-2000).]

  5. #5
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    Feb 2000
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    38

    Post

    Cool, thanks for the advice. Its nice to know its most likely not my lcd.
    GR1NCH
    [email protected]

  6. #6
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    Feb 2000
    Location
    Edison, NJ
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    24

    Post

    you have to be careful which cables you buy .. some are straight-through, others are null-modem or crossover cables.. just get a db9 extension cord and a gender changer (i'm using a pic-an-lcd module so i dont need the gender changer.. the connector is female on it)


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  7. #7
    Newbie
    Join Date
    Feb 2000
    Posts
    38

    Post

    so the gender changer wouldn't cause any problems... I had bought an extension in case the male-male wasn't long enough, so if I just needed a gender changer it may save me some time.

    Gr1nch
    GR1NCH
    [email protected]

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