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Thread: Lengthening LCD lines...

  1. #1
    Constant Bitrate captain_jim1's Avatar
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    Lengthening LCD lines...

    I have a laptop I've disassembled for use in my car, but have a small problem with the lenght of the lines connecting the screen to the laptop...

    I want to know if it's possible to lengthen the data cable somehow -- can i cut and splice longer lines in without degrading signal?

    How about the power line? If I splice longer lines in there will there be an issue with power? I doubt this one will be effected as much my a splice than the data signal, but you never know.

    Data Signal..



    Power Cable..

  2. #2
    I'm sorry, and you are....? frodobaggins's Avatar
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    you should have no problems with the power.

    extending the data lines can be tricky, the quality degredation will depend on length, your connection skill, and noise introduced.
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    FLAC Skraggy_uk's Avatar
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    he's lucky that he has proper wires to extend, instead of the usual flattened copper on a plastic sheet.
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  4. #4
    Raw Wave hijinks21's Avatar
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    the length of your data cables should not be over 18 inches i think I've read. The controller for it is not powerfull enough to send a strong enough signal any further then that. That said, you can give it a try and you never know .. it might just work
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    Maximum Bitrate MikeHunt79's Avatar
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    I tried making a 1 metre long cable, and it barely worked (I used an old ide ribbon cable as an extension)... There were juddery lines, random flashes, it wasn`t very good ... It now works much better now its been chopped down to 12". I think timing and noise are your main issues here.

  6. #6
    Constant Bitrate captain_jim1's Avatar
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    Hmm .. you mention using a old ide ribbon as an extension. How did you go about this? These wires are small so I'm not too thrilled about all this chopping up.
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    Maximum Bitrate MikeHunt79's Avatar
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    What I did was remove the IDE plugs from each end of my ide cable. I then went on to solder hirose plugs on each end of the cable... It was very very fiddly, but i managed.

  8. #8
    Constant Bitrate captain_jim1's Avatar
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    Pardon my ignorance .. but what is a hirose plug?
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  9. #9
    FLAC DodgeCummins's Avatar
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    Hirose is a brand name of 20-160 pin plugs that are very small...most LCDs seem to use one size. (except mine)

    I also have foot long ide cables extending my LCD signals...I used bigger wire with a high voltage rating (more insulation to prevent arcing). I had to connect it to the POS plastic flat ribbon...so I have 3 bad connections...two cause a 'ghosting' effect on the lower half of the screen, the other causes the screen to go blank on occasion.

    Luckily you have wires...be grateful!

  10. #10
    Constant Bitrate captain_jim1's Avatar
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    Can someone point me towards a 20-pin Hirose connector? Would be sweet to use an ide cable for the extension, but have 2 hirose connectors on each end of the ide cable so i just have to "plug it in" to the existing connector... is this possible or am I dreaming?

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