Thread: The Playstation screen->VGA mod update

My gf2mx supports "arcade" but how do I select that very resolution? I wired the power part right atleast, the backlight works, but nothing on the screen...

gamevue : vga
3:1 R
4:2 G ---->250(best I could find)ohm --->13 and 14
5:3 B
-:5 ground
13: Sync ---->to 2
14: Sync ------> to 2

But I haven't replaced the ribbon cable... Guess it failed? I got a ati rage turbo in the pc too, using that one now and the gf2 for the gamevue, for the record.

yeah and dont try to pull the plug on the inverter when it's on, i got a mark on my thumb that says not to.

Did you make sure that Power and grnd where conected as in the other example here.


And that the video grnd was conencted to


one of the video grounds here?

This mod is slightly more complex than that performed by M Pro in his thread, so i'm not sure exactley what you may have done wrong, if anything.

I think it was the ribbon cable, I soldered the 12v and contrast onto the board as described and it worked, with alot of flickering and such... you could recognice the landscape in xp's standard desktop image tho...I'll try some software settings tomorrow
thanks for your help(also in advance)

Just to make sure for the rest of the gamevue owners.

http://upload.nowherenews.com/files/26216327.jpeg

I removed pin 14(Vsync) from 13 and put Gamevue 7 straight to 13(Csync) on the vga, that did the trick, but not quite.. the screen rolls, like a old tv or the credits at the end of a movie, pretty slow too.
and the image is not as good as M Pro's, not even close. winamp time not readable

Originally posted by jol
I think it was the ribbon cable, I soldered the 12v and contrast onto the board as described and it worked, with alot of flickering and such... you could recognice the landscape in xp's standard desktop image tho...I'll try some software settings tomorrow
thanks for your help(also in advance)

glad you had more success than me with my Joytech screen.

I guess, if I want to improve things, I will have to hack direct to the board.

Skraggy, I am adding a LCD to my comp based on M Pro's design and I noticed that there is a slight problem. The H-Sync and V-Sync are shorted (connected). These signals are TTL logic and connecting the outputs of the video card this way can't be healthy to your vid card. I am working on a circuit that uses an AND gate to combine the two signals into one composite sync signal. I am using an original PSOne LCD screen and I plan on using a dedicated vid card to run it (I have an old PCI ATI lying around).

Originally posted by PurpleDiamond
Skraggy, I am adding a LCD to my comp based on M Pro's design and I noticed that there is a slight problem. The H-Sync and V-Sync are shorted (connected). These signals are TTL logic and connecting the outputs of the video card this way can't be healthy to your vid card. I am working on a circuit that uses an AND gate to combine the two signals into one composite sync signal. I am using an original PSOne LCD screen and I plan on using a dedicated vid card to run it (I have an old PCI ATI lying around).

Thanks.

I was taking to someone else who has made several RGBTV/Projector screens type bits of kit for HTPC systems, he said that idealy you are correct, and a proper combiner type circuit be used, but in the relatively low tech graphics card/Console screen it should be OK.

I look forward to seeing the circuit, but I guess I will be composite until I get a Xenarc/Gain screen, or find a reasonable TFT and controller/touchscreen deal.