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Electronics [Laptop screen] How-To???

Discussion in 'Modding' started by white modder, 14 Feb 2004.

  1. Jenova

    Jenova What's a Dremel?

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  2. ZapWizard

    ZapWizard Enter the Mod Matrix

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    This is something I attempted quite a while back:
    http://forums.bit-tech.net/showthread.php?t=22148

    I even tried with a 32-bit feature connector, but it seems the site you have found has more information.
    (A 32-bit connector should be able to get you 256 or more colors)

    The above link has links to pinsouts for: Sharp LQ9D021, LQ94D021 and LQ9P021

    And a schematic for LD10D131
     
    Last edited: 21 Feb 2004
  3. Altron

    Altron Minimodder

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    I've got a Sharp TFT out of a Toshiba laptop too, except 11".

    Since you seem to have experience with them, the inverter board has a 6 pin connector, do you know what voltage is needed for it?
     
  4. coorz

    coorz Miffed

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  5. Gecko

    Gecko What's a Dremel?

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    heres my crazy plan, i am embeding it inot the sides of a server (the second in my sig) so i can read out all of the stats from the server using coolmon or similar. :D Keep yah posted,. BTW i am using a 10.4" toshiba screen from a P75 laptop.

    Nice guide to.
     
  6. coorz

    coorz Miffed

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    About inverter boards

    A quick translation on what Sprite_tm has to say about inverter boards.

    Backlight inverter:
    1) Normally the inverter board is powered by 12V, however first try it at 5V that won't hurt anyway.

    2) Determining ground(-) and VCC(+):
    Ground(-) Look at the bottom of the PCB, thick traces connected to big 'islands' and/or shorted with screwholes are usually ground.

    VCC(+) Try looking for 'familiair' components (like IC's, voltage regulators) of which you know the VCC(+) pin, that will surely also be the VCC(+) for the whole circuit.

    Please note: there might also be an 'backlight enable' option.

    3) Now hook 5V to the inverter board, if nothing happens try it at 12V.
     
  7. fuzzygoblin

    fuzzygoblin What's a Dremel?

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    looks like a step in the right direction (sort of)
     
  8. Jenova

    Jenova What's a Dremel?

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    man this is so hard i still cant light up m,y cathode from the lappy screen

    its has 4 wires

    yellow, white, red and black


    as typical i tried the black and red on 5v and 12v but still nothing ???
    :waah: :waah: :waah: :waah:
     
  9. Altron

    Altron Minimodder

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    Is this conencting directly to the screen or to an inverter?

    Because 12v alone can't power a CCFL, it takes around 1,000v.

    If you're conencting directly to the CCFL, try buying a CCFL inverter and using that to power it, although be careful with your conenctions because 1000v can probably go at least a few mm into the air.
     
  10. Jenova

    Jenova What's a Dremel?

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    no, it came with an inverter and im using that
     
  11. The Bodger

    The Bodger What's a Dremel?

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    This thread seems to have died :( Anyone still working on recreating this amazing mod, or has everyone abandoned it?

    I'm still hoping to try it this Easter with an old dual scan colour screen out of a 486 laptop I've found, but I'd like to know my chances of success / get guidance from someone who has done it. (And speaks English fluently)
     
  12. Altron

    Altron Minimodder

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    I've got the LCD and I'm tinkering around, but I'm preoccupied with my headphone amp.
     
  13. poody

    poody What's a Dremel?

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    I'm just going to bump this up to maybe stir up a little more interest in this topic.

    Plus the VESA connector isn't limited to ISA and PCI video cards. I have a G400 sitting here that has one, a RAGE Pro that has the holes for one, and I remember always wondering what those pins on my Voodoo 3 were for. I'm pretty sure the Voodoo 5 even had one.

    Not great cards by todays standards but still leaps better than an old S3 Virge. :eyebrow:
     
  14. coorz

    coorz Miffed

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    Good bump. I got 3 different LCD's hanging around and enough VGA cards. What i don't have is TIME do play with them :miffed:
     
  15. SlackeR

    SlackeR What's a Dremel?

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    Me and a frien is going to do an attempt within a few weeks on a 85G0500 monitor from an IBM laptop.
    We have the pinouts. We have a card with a lot of pins. there are a lot more than 2x13. However, there IS a row of 2x13, then 2 empty holes for pins, and then a few more pins. i thin it is lik 2x9 more.
    The card is a ExpertColor S3 virge. Should we just use the 2x13 pins and not bother about the rest?
    i will post results for you :naughty:
     
  16. kidron

    kidron What's a Dremel?

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    ::amazingness:: ::amazingness:: ::amazingness::
    ::happiness:: ::happiness:: ::happiness::

    this should be a great step on connecting laptop screens to pcs as some said :thumb:

    this are amazing news :D
     
  17. SlackeR

    SlackeR What's a Dremel?

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    Trouble now. according to the pinout i have (pinout ), the LCD_EN, which i suppose is the display enable is connected to +20v in the laptop. My guess is that this is what powers up the LCD? so i will not want this to start the monitor when the PC is off.. But i cannot take +20V in my computer.
    should i just give it a go at +12v or should i find an adapter for the wall outlet to provide +20v?
    Or is there a relatively easy way to get +20v from the psu?
     
  18. OrbDemon

    OrbDemon What's a Dremel?

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    I actually have an LCD with a cotroller card - but i'l gonna get some old screens and try it this way when I get some time.

    Great to see everybody working together to solve this conundrum.
     
  19. Altron

    Altron Minimodder

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    Your best choice would to use a DC-DC converter to take 20v from 5v or 12v.
     
  20. SlackeR

    SlackeR What's a Dremel?

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    I do know basic electronics, but it is VERY basic. i understand the scheamtics and the idea behind this mod, but i do not know much about this stuff... Is this something i can go out and buy, or is it relatively easy to build? i am able to solder too ;)
    If it is possible to make you are welcome to share your schematics :)
    anyways, can't i just use an adapter for testing and get this converter later on if it works ok??
    I suppose this LCD_EN line is the line that supplies power to the unit too, as i don't see anything about this in the pinout?
     

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