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Thread: PSOne LCD on a GeForce 4?

  1. #1
    Newbie BadBoy's Avatar
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    Angry PSOne LCD on a GeForce 4?

    has anyone got the (official Sony) PSOne LCD to work on a GeForce 4 card (i have a Ti 4200)? i've searched the posts, but seems like most people are using the Radeon cards.

    thankz for any input!!!

  2. #2
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    you just need a TV out.. brands dont matter.

  3. #3
    Newbie BadBoy's Avatar
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    i'm trying to do the RGB/VGA hack thing from the computer. not much luck tho...

    if i have to, i'll just pick up a cheap "proven" video card. i thought MPRO had gotten this to work on a GF4, but i don't know how to get a hold of him?!

    the search continues-------->

  4. #4
    Newbie BadBoy's Avatar
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    Thumbs up Update

    i got a picture! not the greatest pic, but a pic nonetheless. weird thing tho- the screen is split into 4 quadrants, its kinda hard to explain but here goes: the left hand side is on the right, and vice versa, and the top is on the bottom (and vice versa).

    the way i have it working now, its spliced into another monitor cable. without the monitor, the GF4 doesn't recognize it. oh well, keep pluggin' away, i'll figure it out sooner or later. if anybody has any advice, PLEASE POST!!!

  5. #5
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    I remember reading about Starfox who had it working on an nForce, see thread called "Playstation LCD Hack - Works!!" but he was using a HSync+VSync to CSync converter. What you are describing sounds like when my system boots up before powerstrip loads (I'm using a Matrox G200) the screen is squiggly and roughly breaks up into 4 quadrants. To get mine to work edge-to-edge I had to modify the timings from what I got off of MPro's site. To modify the timings, I ran two computers with XP Pro using the remote control feature, that way if I lost sync on the LCD, I could still see what I was doing on the second PC. Also, if you lose sync you don't necessarily have to stop and reverse the timings, some time if you keep going it will sync back up at a different frequency.

    PS-I also tried a Matrox Mystique but never could get that to work to my satisfaction, so I picked up the G200 at a local PC parts reseller in Austin, TX for $9.

    Quote Originally Posted by BadBoy
    i got a picture! not the greatest pic, but a pic nonetheless. weird thing tho- the screen is split into 4 quadrants, its kinda hard to explain but here goes: the left hand side is on the right, and vice versa, and the top is on the bottom (and vice versa).

    the way i have it working now, its spliced into another monitor cable. without the monitor, the GF4 doesn't recognize it. oh well, keep pluggin' away, i'll figure it out sooner or later. if anybody has any advice, PLEASE POST!!!

  6. #6
    Newbie BadBoy's Avatar
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    thanks MTWallet!
    after further screwing w/ it, i have one whole screwed-up pic instead of four!!! the LCD can't display the whole desktop, just the top left hand part. yeah, i bounced back and forth between MPro and Starfox, and Starfox is the one that worked?! i'm not PAL, can't quite figure that one out... but not complaining!!! yes, he used the nForce, but that is video intregated into a motherboard (me thinks?!). i'm trying to get a dual monitor setup going. i'm close!!!!!!!!!!

    thankz for the input-

  7. #7
    Maximum Bitrate starfox's Avatar
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    Yah i got a PAL Sony branded PSOne display working off an nForce using a XOR to dirty convert hsync and vsync to csync.

    The main diff b/n PAL and NTSC is the timings for the video signal. NTSC you need a slightly higher refresh rate and less lines. PAL you need a lower refresh rate and more lines displayed.

    If the display is showing the quadrants in the wrong places, your display alignment might be off.. try mucking with that first.

  8. #8
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    PSOne LCD Screen

    I had bought my LCD Screen ages ago, it was just sitting in my cupboard collecting dust until I saw it again. I rewired my LCD Screen so the AV Input has been turned into a simple RCA Connection, not VGA Connections. My Screen can still play PS Games, but now it can do heaps more, it's great. The only annoying part is the wiring, that's a pain. BUT a great seult in the end.

  9. #9
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    PSONE LCD resurrection (via VGA) with success!

    I have done!

    In my new M10000 there is a free PCI slot. I purchased a TNT2 riva M64 with a simple VGA output.
    I wired the RGB lines. The syncs were combined with two transistors.
    The only dirty trick was gaining power to feed transistors and enable pin from DDC DTA pin...

    I used powerstrip and setting that PAL interlaced. The only problem is I used the shareware trial ver of powerstrip and it gives me a message box on the screen...

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