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    Toshiba Libretto W100 lcd replacement lvds problem

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by motoi.bogdan, Jun 24, 2013.

  1. motoi.bogdan

    motoi.bogdan Newbie

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    Hello guys!
    (uhm... spoiler alert ! - please excuse crappy english skills...)

    I've been "told" that i could find some wacky hardware modders around here so i've decided to give it a try. I've been doing the electronics thing for a lot of years but recently decided to interact with the pc/laptop area. Other then this, i've been doing electronics design, various gadgets, videoprojector modding, some microcontroller based stuff and so on.
    But here's the thing...
    I've got myself one of these toshiba w100 libretto thingy, in pretty bad shape. It's a pretty rare device nowadays, not a lot of info about it, certainly not a lot of modding info about this one.
    My w100 has a broken digitizer and it's about $150 to replace, i figured out it would be kind of boring to just replace the digitizer. My problem is with the form factor and the crappy black shinny plastic and glossy stuff all over w100's casing. So i decided to redesign it. I know it won't be easy, especially with what i want to do with it.

    So the game plan is something like this :

    Use karate skills, screwdrivers (whatever) and dismantle the thing in order to remove all it's guts (done)
    Recover mainboard and redesign new cooling system instead of the old crappy one (design completed, only needs to be implemented)
    Design a new casing, using cnc milled aluminum (i kind of like.. know how i want to make it, but it depends on what lcd i can use for this)
    Replace both lcd panels and use a single larger 10 inch (or something like this) lcd with another touchscreen module.

    ...and here's where the problem is...

    I've removed both lcd panels and found out that their are being driven by 2 lvds connections, 30 pin each. The lcd, themselves are identical and have the following serials :
    NRL75-EE17013A
    LT070EE17000
    G33C00062110

    each code point to the same panel. First order of business was to find out the lvds pinout in order to find a compatible display. Either with the same connector or .. if it's needed, use some soldering to make a custom cable/interface between them. Bummer, there is NO datasheet on this display, neither a pinout. I've searched everywhere (i think) - no luck. At this stage i simply don't know the lvds pinout for the motherboard and thus, i don't know what display i can try to connect. There's no LCD controller on the motherboard since it's part of some larger asic chip and there's no datasheet on that one also.
    The panels themselves are working but i don't know how to determine specific pins based only on that (i do have 2 scopes if i were to think i can measure up some signal patterns).

    So the project is on hold since i simply don't know what lcd may be compatible with this board.

    Another idea was to replace the wlan card mounted on the mini pcie slot this board has. I've heard that this board doesn't have a whitelisted pcie slot and there's a chance to connect various stuff over the pcie slot. So i've found this small thingy:
    MPX-SDVOX - Mini-PCI Express 24-bit LVDS Module from BVM Limited

    beauty.. this small board has a lvds output with known pinout. I can technically attach almost any lcd pannel to it. But there's another problem. Will the system boot up and use this board as default video output device in order for me to connect my only lcd to it? That i do not know...

    So i'm stuck again. I simply don't know if any of these 2 approaches will work..
    Does anyone has a clue about what can it be done with that motherboard to get another lcd connected to it and used as single display?

    I'll solder anything, i'll make custom power supplies, i'll replace components, but don't know where to begin :D

    Any help please?
     
  2. motoi.bogdan

    motoi.bogdan Newbie

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    aah, .. up?