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Thread: LCD working: but not displaying text!

  1. #1
    Newbie
    Join Date
    Jul 2002
    Location
    UK
    Posts
    37

    LCD working: but not displaying text!

    I followed this guide to wire up my 16x2 LCD:

    http://www.overclockers.com.au/techstuff/a_diy_lcd/

    The power connections are right, cause im getting the test signal of blocks on the LCD, but nothings displaying on the LCD.

    I know Ive obviously wired the Pins up wrong, but in the table it says Pink wire twice, I have exactly the same colour wires as the cable used in the guide, except I dont have two Pink wires, I only have one.

    I cant get the other end of the cable off, to check what colour wire is going to which Pin, is there any other way I can know?

  2. #2
    Variable Bitrate
    Join Date
    Apr 2002
    Location
    South Coast, UK
    Posts
    437
    Forget the colours! You need a voltmeter, use it to test continuity from a pin on the plug to the LCD end, and use this with the wiring diagram to see if they are connected correctly.
    -------------------------------------------
    (=========-) 99% complete
    --------------------------------------------
    AMD K6/2 500 @ 450mhz to keep heat and power usage down, 64Mb, slim CDrom drive, 64mb USB pendrive for MP3 transfer, 10Gb 2.5" drive for MP3, USB>RS232
    All jammed in external CDROM drive case.
    Kenwood KVC-1000r In-Dash LCD. x-10 MouseRemote. Destinator V2 Gps. DC-DC with onboard Shutdown controller.
    ----------------------------------------------

  3. #3
    Newbie
    Join Date
    Jul 2002
    Location
    UK
    Posts
    37
    I dont have a Voltmeter, surely there were different colour wires when you wired up your LCD?

    Couldnt you tell me the sequence of the wires.

  4. #4
    Variable Bitrate
    Join Date
    Apr 2002
    Location
    South Coast, UK
    Posts
    437
    I could, but the problem is that the coloured wires that are used by the manufacturer are their own choice, so on your cable pink might be pin 3, but on another it might be pin 7. So you can see how risky copying colours can be.
    -------------------------------------------
    (=========-) 99% complete
    --------------------------------------------
    AMD K6/2 500 @ 450mhz to keep heat and power usage down, 64Mb, slim CDrom drive, 64mb USB pendrive for MP3 transfer, 10Gb 2.5" drive for MP3, USB>RS232
    All jammed in external CDROM drive case.
    Kenwood KVC-1000r In-Dash LCD. x-10 MouseRemote. Destinator V2 Gps. DC-DC with onboard Shutdown controller.
    ----------------------------------------------

  5. #5
    Newbie
    Join Date
    Jul 2002
    Location
    UK
    Posts
    37
    I get what you mean.

    Is there any one I could send it to, and they could get it working for me?

    I'd pay them form their time, and postage obviously.

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