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Thread: Lengthening LCD lines...

  1. #21
    Constant Bitrate captain_jim1's Avatar
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    Resoldered a few lines I did in the beginning that I felt were questionable. Individually taped each one up with some elec.tape and it's now WORSE!

    I'm still so confused as to why the boot up screen (in black and white) is PERFECT... so weird..

    -Capt.
    PS. I'll try getting some foil and wrapping it around each line tonight...
    -Brad
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  2. #22
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    OK. When the laptop boots up , it uses dos mode graphics. Its low bandwith and very little data is flowing down the cable. When windows starts up all the funky graphics start and the refresh rate may change. The amount of data going down the cable just went thru the roof.

    Before you modified the cable it was quite well matched to what was needed from it , some of the wires may have been twisted together to cut down on noise from other wires. Now you come along and splice in a lump of idc cable with all the wires in a row and 'crosstalking' like mad.

    What you may want to try is spliting the idc into single wires and making them a bit more 'random' , it would reduce the effect of any one wire on any other wire. If any of the wires were twisted together , try to continue the twist thru your extension cable.

    Last time I tried this I had to sheild half the wires and ended up with a cable the thickness of your thumb (and about as flexable) , but it did work.

    dave

  3. #23
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    Just had another look at your pics , notice at the twisted wires ?
    You need to continue the twist thru your extenstion cable. Any idea what the display is ? You dont seem to have enough wires for much more than 4 bits per colour unless its some form of panel link interface (unlikely).

    Hardware_dave

    PS. if you wrap the wires in foil , just ground one end.

  4. #24
    Constant Bitrate captain_jim1's Avatar
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    What do you mean by "ground one end"??? Thanks for the input .. I am defintley try it out...

    -Capt.

  5. #25
    I'm sorry, and you are....? frodobaggins's Avatar
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    He means ground one end of the foil
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  6. #26
    Constant Bitrate captain_jim1's Avatar
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    Every solder connection was wrapped in elec tape.. then I wrapped each connection in aluminum foil, then twisted the pairs that go together .. and wrapped each pair in aluminum foil .. booted up and the first thing I said was.. "WOW" .. the black and white image was 100% perfect .. no small jitters if you looked real close or anything like that ...

    ..however .. there's still that incredible delay until the machine boots into Windows..

    But onto more good news .. the picture in Windows is absolutley perfect too! SCORE!

    Now .. how can we figure out this lag on boot up problem? An mp3 computer that boots after 5min isn't going to do me much good :-/

    -Capt..
    PS. Oddly enough, if I wrap any electrical tape around the end of the foil .. just to keep it from falling off, the screen doesn't work anymore. It will just stay bright white. However, when it does that it boots up real fast (I can tell by the HD activity). Also .. it seems to boot faster when the system is warm.. odd...
    -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.

  7. #27
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    Hi , glad it worked. Any info off the back of the lcd yet ?

    Unless you have a strange lcd your mods should not change the boot time , in fact it should boot without any display as the lcd never sends any info to the laptop.

    Hardware_dave

  8. #28
    FLAC Skraggy_uk's Avatar
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    Gald the foil shielding worked for you fella.

    Nice one.
    4x4 in a turbo stylee.

  9. #29
    Constant Bitrate captain_jim1's Avatar
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    Oh right, the lCD says "Hyundai HT13X12-101" on the back. I unplug the connector on the mobo and the laptop boots up normally. This boot time is killing me... and when I eventually get to Windows and do a restart .. it works fine. Maybe I should just leave it on indefinatley.

    -Capt.
    PS. Is there a controller card that would allow me to use this screen with a desktop PC?
    -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.

  10. #30
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    I checked the part no. it seems to be a 'badged' LT133X2-122 , but not much info on that part either <sad>.

    When you turn on the laptop do you see the post screen then a long delay before windows ? or is it a delay before post ?

    Did the laptop boot ok before the mod ?

    Check any other connectors you may have disturbed and the bios for any silly settings.

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