Help with PSONE LCD mod

**Mage** · 05-15-2004, 11:48 PM

that's what I did serach for psone and read all the therads there's a lot of good info just not for the Millenium II :\

mage

**Vicious** · 05-31-2004, 11:31 PM

Originally Posted by Mage

I made a driver for the psone screen. it didn't work on anyother card I had So mabe only the millenium II can do it? dont know untell I get it from scrolling wich I belive is a refresh rate problem? or pixel clock problem.

Mage

I think the scrolling problem happens only if Csync is not enabled. It might not be available for your card too. I used to have it with my Geforce 2 until I got a Matrox Millenium G200.

**Hcomplyr** · 06-02-2004, 10:20 PM

good thing i just got a matrox from work (they throw out the niftiest things)

**starfox** · 06-03-2004, 02:44 AM

You'll see scrolling if your horizontal and vertical refresh are set incorrectly.

What resolution are you running the display at? I don't know what the NTSC display looks like as i only did the mod on a PAL Sony PSOne display..

**Mage** · 06-05-2004, 03:09 PM

I'm running in both 640 by 480 or 800 by 600 Csync is enabled.

thanks for the help and sorry for the long wait to reply I was out of town.

Mage

**starfox** · 06-05-2004, 10:23 PM

The Sony PSOne LCD runs at a fixed resolution, so you'll need to set your screen resolution and frequencies to match that.

For NTSC, i think you'll be looking at something like 640x480, and ~30hz vertical refresh. The easiest way to do this (i think) is to install WinVNC (or another remote control application) and control the PC with the LCD on it from another one through the network. This'll let you change the settings in powerstrip without making your display go all garbled up and unreadable.

Try messing around with the settings until you get a picture. A lot of this is trial and error.

**Mage** · 06-06-2004, 02:57 AM

thanks for the help I just went out and got a G5 PCI installed it and works GREAT! (Besides not having csync)

Mage

**Mesuge** · 06-06-2004, 08:14 AM

Hi Mage&others,
finally someone who succeeded in the vga mod with the same card - I'm using Matrox Millenium g200 as well. However, I can't get it work - I'm stuck!

Firstly I tried wiring it to the multiAV in connector in order to go around soldering but I got only green screen, after checking my wiring I tried to solder it on the pcb now but no way still green lcd, but it seems to me it does react to mouse over by some tiny different flickering etc..

Has anybody experienced anything similar? I'm quite desperate to figure out why it doesn't function -> I'm using the latest powerstrip and 640x480i can be easily selected as well as checkboxing for 'interlaced' and 'comp. sync'..
(do I have to change the setting right here at thi sstage prior changing monitors or this 640x480i res should kick off and start psone immediately on its own ?!?) In addition I made some attempts with 7560X576 but no go either..

Is it possible that I've fried the display or it might be a mess in the wiring?,
which I've already ruled out :@ ), or do I use the powerstrip in a wrong way?
I've followed all the tutorials at serio's lcd page - which is the method of wiring I used - including that additional pin 11&4grounds, kickassamd and elswhere..
I'm wondering Is it this method suitable for G200 at all?
Could you please advice me which method or combination of methods
is the best for millenium g200

[Btw. when purchasing this lcd I asked the salesperson to make a video
test on my unit in order to be sure that it's in working condition in case
I would get to some strange results. I'm using the orig. sony psx lcd
model "SCPH-152" bought in EU/PAL]

Thanks for any suggestions guys you are my last hope :@ )

update:
This forum suggests that the serio's method is more or less a very
propriatery solution so additional soldering of those 'dummy resistors'
seems to be inevitable even for g200.. Guys who made it any
insight on this issue, please ???
http://forums.hexus.net/showthread.p...&page=10&pp=15

**Mesuge** · 06-06-2004, 10:53 AM

MatrixPC> you mentioned in some pretty old thread that you were basically going through a similar ordeal with g200 trying all vga mods available but in the end you did tweak it rather successfully but then the thread suddenly ends - would you pls. provide some details on this. Thank you very much :@ )

!Btw. In case you have not heard about it yet, some german diy guy called Harald made a nice reddish and brigthness improvement mod for the psone lcd:
http://www.diyaudio.com/forums/showt...&pagenumber=22

**MatrixPC** · 06-06-2004, 07:32 PM

Okay, While I have disassemble the PSOne LCD to put in my Supra dashboard, I was able to take some picture.
Check this thread for more detail . The information I get either from M_Pro or StarFox and/or basically everyone on the forum. The screen is Original Sony NTSC.

The TTL Sync circuit that I build for the mod is base on this drawing.

The PSOne disassemble.

The input board on below the LCD. I desolder the front MultiAV connector and solder it directly onto the board. Check StarFox website for clearer picture and pin number.

The TTL Sync circuit base on the above drawing.

If you look closely at the circuit, you guy will notice a jumper there. I put a jumper there because some say PSOne works on Pin5 and some say Pin6. Either one will work, but Pin5 work better because it doesn't give you hardtime with Powerstrip. Don't ask me what I have setting on Powerstrip because it will take me another week or more to have everything put together.