PS2 VGA : Green tint solution

[Darklegion]

http://ps2-scene.org/forums/showthread.php?t=42592

I'm happy enough with just adjusting my monitor to compensate for it, but this could be useful for the less tolerant monitors out there.
This fix seems to be using the old SC- video encoder though, so who knows if it works with the newer CX- chips

EDIT: I was not aware that it wouldn't even allow unregistered users to read a post! Here is the text of it:

"PS2 VGA HACK (kiss Sync on Green goodbye)
I'm releasing this information in order to help the fellow users of the Matrix Infinity, Origa 2 and possibly other VGA capable mods.

While trying the LM1881 PS2 VGA hacks arround I got annoyed by the fact I couldn't strip the sync signal of the green. That was causing a major problem on most monitors I tried to use with my PS2.  

After a little bit of research I found out there were split Hsync and Vsync signals inside the PS2 just waiting to be tapped out. That simplified the circuit by a ton. But I still were having trouble with the green stripes on the edge of the image (Sync noise). Then I finnaly found a switch on the PS2 analog video encoder that completely disables the SoG mixer. I tested this and it doesn't seem to affect the Component Video output.

The Dreamcast VGA diagram from GameSX.com was used as reference for the
VSYNC/HSYNC buffer. it uses the same circuit but the pins 1 and 19 of the LS244 are tied to ground without a switch (aways enabled)

Thanks goes for GameSX.com for posting the VGA Box for Dreamcast schematics


Merry Christmas and happy hacking


P.S.: (this will work with PS2 linux too and will enable any VGA/VESA monitor to work on a PS2 console)"


Also I have attached the first image (didn't attach the second as it just the dreamcast vga diagram)

[viletim!]

You are not logged in or you do not have permission to access this page. [...] The administrator may have required you to register before you can view this page.

oooh...it's so cliquey!

I'm intrigued about this, what has a video encoder chip go to do with sync removal? I guess i'll never know.

[Endymion]

You are not logged in or you do not have permission to access this page. [...] The administrator may have required you to register before you can view this page.

oooh...it's so cliquey!

It's also the best damn site on the net for any information at all about the PS2.

Membership has its benefits.

[Aidan]

Unfortunately, some of us are unlikely to bother registering for yet another forum - especially one that makes none of it's detail publically available.

[Endymion]

It's available to the public that registers, free as usual. Are you still playing your PS2 games from the DVD drive?

[Aidan]

I lost track of the size of my list of passwords, but be assured it's way over the 200 mark. Hence, if a site doesn't work on trying to make itself at least partially accessible, I don't see why I should waste my time visiting a site that plainly isn't interested in me either. A "You must register to see anything" screen just means I go elsewhere, as there's nothing there to interest me.

Based on what I see before me, it's hard to see that it's worth registering for, even if it is free (in terms of money, not time!)

[Endymion]

And some admins have little time for people who can't take the ten seconds to register, memory or distrust of cookies be damned. That's probably well over 200 users I'd hazard a guess. Thankfully the noise that allowing outsiders to post here brings is at a minimum though, but then we don't deal in a lot of areas that are so potentially litigious (i.e. Lawrence has had cease and desist letters from Atari for logo use, but not from Sony for the kind of discussion that takes place) so have fun when your PS2 laser burns out.

[NFG]

I have to agree with the complaints here.  Register to post, usually a good idea.  Register to read is just irritating.

I can't count the number of times I check the logs and find my content hotlinked on other forums, but I can't see who/what is being used/said with my content because I have to register to read.  

...This thread is officially derailed, sorry.  =(

[RGB32E]

There IS an easier alternative to modifying a PS2 to circumvent the SoG problem, obtain an Extron RGB Interface.  You can find them for less than $30 on eBay.  That is what I use on monitors that don't support SoG.

Extron has released many different "RGB Interfaces", but most of them will do the trick.  Also, Extron (www.extron.com) has most of their product manuals archived, so information is available for a given model.

I hope this makes life a little easier for some people!!!

I own two of the units shown below...