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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..
    -Brad
    83 mp320i
    99 mp323i
    _________

    7" Lilliput w/Touch, 150 W Opus, 2.4ghz P4 533fsb, 512 DDR 333mhz, GPS, WiFi Inet, 40g Maxtor 7200rpm, Laptop DVD/CD-RW w/USB2.0 Bridge, WinXP Pro.

  • #2
    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.
    [H]4 Life
    My next generation Front End is right on schedule.
    It will be done sometime in the next generation.
    I'm a lesbian too.
    I am for hire!

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    • #3
      he's lucky that he has proper wires to extend, instead of the usual flattened copper on a plastic sheet.
      4x4 in a turbo stylee.

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      • #4
        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
        '98 Explorer Sport
        http://mp3car.zcentric.com (down atm)
        AMD 800mhz 192megs RAM 60gig hard drive 9 inch widescreen VGA
        80% done

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        • #5
          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.
          My Setup

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          • #6
            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.
            -Brad
            83 mp320i
            99 mp323i
            _________

            7" Lilliput w/Touch, 150 W Opus, 2.4ghz P4 533fsb, 512 DDR 333mhz, GPS, WiFi Inet, 40g Maxtor 7200rpm, Laptop DVD/CD-RW w/USB2.0 Bridge, WinXP Pro.

            Comment


            • #7
              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.
              My Setup

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              • #8
                Pardon my ignorance .. but what is a hirose plug?
                -Brad
                83 mp320i
                99 mp323i
                _________

                7" Lilliput w/Touch, 150 W Opus, 2.4ghz P4 533fsb, 512 DDR 333mhz, GPS, WiFi Inet, 40g Maxtor 7200rpm, Laptop DVD/CD-RW w/USB2.0 Bridge, WinXP Pro.

                Comment


                • #9
                  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!
                  current projects

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                  • #10
                    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?
                    -Brad
                    83 mp320i
                    99 mp323i
                    _________

                    7" Lilliput w/Touch, 150 W Opus, 2.4ghz P4 533fsb, 512 DDR 333mhz, GPS, WiFi Inet, 40g Maxtor 7200rpm, Laptop DVD/CD-RW w/USB2.0 Bridge, WinXP Pro.

                    Comment


                    • #11
                      You're dreaming. The connector in your picture looks nothing like a hi-rose connector.

                      The best you could hope to achieve with hirose is with 2 male and 2 female connectors. Break the existing cable and solder on a male and female in the gap so you can plug it back together. Then make a male to female extension that you can insert in the middle.

                      Kind of defeats the whole point of building a cable so you can just plug it in though.


                      Rob
                      Old Systems retired due to new car
                      New system at design/prototype stage on BeagleBoard.

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                      • #12
                        Yeah that does defeat the purpose. The reason for wanting to make a 'removable extension' was to just add it to one side (not inthe middle) of the cable and then I could simply remove it if it didn't work. If I cut these lines up and can't get it to work I'm going to be in a heap of trouble...

                        -Capt.
                        -Brad
                        83 mp320i
                        99 mp323i
                        _________

                        7" Lilliput w/Touch, 150 W Opus, 2.4ghz P4 533fsb, 512 DDR 333mhz, GPS, WiFi Inet, 40g Maxtor 7200rpm, Laptop DVD/CD-RW w/USB2.0 Bridge, WinXP Pro.

                        Comment


                        • #13
                          Help! Lengthening LCD lines...

                          Well, I went for it .. chopped up a IDE cable and cut the lcd signal in half .. spent the day stripping the wires and soldering .. then covering in elec. tape for protection.. here are 2 pics of the done job..





                          After I was done, plugged it in and booted up.. at first .. SUCCESS! I get a perfect picture of the bios boot screen .. detects ram, cpu, etc .. then it just sits there... I try to enter the bios .. says "entering bios" .. but it never goes there. Is this related to the lines I just made? HELP!

                          -Capt
                          -Brad
                          83 mp320i
                          99 mp323i
                          _________

                          7" Lilliput w/Touch, 150 W Opus, 2.4ghz P4 533fsb, 512 DDR 333mhz, GPS, WiFi Inet, 40g Maxtor 7200rpm, Laptop DVD/CD-RW w/USB2.0 Bridge, WinXP Pro.

                          Comment


                          • #14
                            have you just tried to let it boot first ?

                            How are we supposed to know if it's related !
                            [H]4 Life
                            My next generation Front End is right on schedule.
                            It will be done sometime in the next generation.
                            I'm a lesbian too.
                            I am for hire!

                            Comment


                            • #15
                              Yep - -that's what I tried to do the first time .. I figured I'd enter the bios to see if I would see some of the BIOS colors .. blues and yellows .. that would give me more of a sign the connections were good..

                              -Capt.
                              -Brad
                              83 mp320i
                              99 mp323i
                              _________

                              7" Lilliput w/Touch, 150 W Opus, 2.4ghz P4 533fsb, 512 DDR 333mhz, GPS, WiFi Inet, 40g Maxtor 7200rpm, Laptop DVD/CD-RW w/USB2.0 Bridge, WinXP Pro.

                              Comment

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