PsOne screen info and cutting guide WIP

If you're making a portable you probably need something to watch it on. (Unless you want to guess what's happening in the game, but I wouldn't advise that) Anyway, this forum is your "Hacking a pocket TV/screen" one-stop solution. Share your experiences and knowledge here.

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zenloc
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PsOne screen info and cutting guide WIP

Post by zenloc » Tue Dec 29, 2009 3:23 pm

I've been asked by a couple of people to make a little guide and thus have come with the following information. It's still a work in progress since I don't have allot of time. I'll update it bit by bit.

Oke so let's start at the beginning. Be sure to read the ENTIRE guide before you perform any of these modifications. Read them a couple of times so you completly understand what to do.

---------------INFO-----------------------------


Front and back side of a PAL/NTSC board:
PAL PsOne mobo: http://i45.tinypic.com/2ikd5ia.jpg" onclick="window.open(this.href);return false;
NTSC PsOne mobo: http://i47.tinypic.com/200fzuo.jpg" onclick="window.open(this.href);return false;

Note: the 4 extra 220uF caps on the PAL board (not all revisions have these). These are put on each speakerline. Left + and - and Right + and -. Most likely to reduce distortion.

Circuit info: http://i45.tinypic.com/2wme1yu.jpg" onclick="window.open(this.href);return false;
Image

Pinout info: http://i50.tinypic.com/2uz3u5z.jpg" onclick="window.open(this.href);return false;
Image

RGB greenfix: If you connect RGB to the greenfix location the image will be brighter but you will have no more green screen with the ps2! Note that if you want to watch dvd's on your ps2 you have to have a switch to composite. It doesn't ouput RGB in dvd mode only composite and component.

S-Video mod (PAL ONLY): Remove the cap that is located at the chorma input and place the - side of a 220uF cap on the solder spot connecting to the chip. Then connect chroma signal to the + side of the cap.



---------------Cutting guide-----------------------------



Step 1: http://i47.tinypic.com/iz3wxf.jpg" onclick="window.open(this.href);return false;
Image
First: remove the components highlighted red. You can get rid of these as these are not needed anymore (you could relocate them if you want since their there for a reason, altough I don't notice anything when I remove them so your choice).

Second: remove the green ones which are 2 caps and a 7805 regulator (use a marker for the caps to remember which side is ground) We'll be needing both those caps and the regulator. So to make sure you don't mix up the caps solder them directly onto the regulator. That way they won't get lost. Now set the regulator aside we'll be relocating it once the board is cut.

Third: remove the blue ones (use a marker yet again) and relocate them to the location provided in the next pic.
You have to scratch the green stuff off so you can solder the component directly to the board.



I'll be taking the rest of the pics and finishing the cutting section later. Patience is a virtue :P
Last edited by zenloc on Sat Feb 27, 2010 8:10 pm, edited 4 times in total.
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Pkmnjunky7
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Re: Complete PsOne screen info and cutting guide WIP

Post by Pkmnjunky7 » Tue Dec 29, 2009 4:34 pm

Holy cow! This is awesome!!! I can't wait to see the rest of the info you post. Thank you!!!!
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Re: Complete PsOne screen info and cutting guide WIP

Post by Bino Gas » Tue Dec 29, 2009 5:24 pm

I will be following this closely. You are my hero!
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zenloc
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Re: Complete PsOne screen info and cutting guide WIP

Post by zenloc » Wed Jan 06, 2010 4:48 pm

added a bit of info. Tomorrow the cutting section will be finished.
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Re: Complete PsOne screen info and cutting guide WIP

Post by Kyo » Thu Jan 07, 2010 8:20 am

Very nice, very nice. Good to see you again, zenloc.

I was actually wondering about that LED. It's weird. I guess it was some kind of debugging thing?

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Re: Complete PsOne screen info and cutting guide WIP

Post by limpport » Mon Jan 25, 2010 12:25 am

Any new progress?

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zenloc
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Re: Complete PsOne screen info and cutting guide WIP

Post by zenloc » Mon Jan 25, 2010 2:36 am

I finally got a new camera (the one I had before sucked big time) so I should be able to add more info and pics. Though I'm very busy so I can't say when. I'll try to get to it asap.
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Re: Complete PsOne screen info and cutting guide WIP

Post by limpport » Mon Jan 25, 2010 5:11 pm

Hooray!

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Re: Complete PsOne screen info and cutting guide WIP

Post by jdmlight » Sat Feb 20, 2010 12:15 am

Bump. This is awesome. I'd really be interested in making my PSOne (well a Zenith one, but it's the same supposedly) screen smaller. Gogogo!
zenloc wrote:This entire circuit is used for the backlight. It is powered by 7.2v. If you are going to LED mod your screen cut this entire section to reduce the size and amp draw. Or just don't power it and you'll have the same effect.
Quick question, does the screen need the 7.2v at all if I LED mod? I'd be interested in powering my PSOne screen from (regulated) 5v that is readily available elsewhere in my NESp, looks like I might have to LED-mod right away to do that though...
--John (and please call me John, it's really weird to be called by my username)
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zenloc
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Re: Complete PsOne screen info and cutting guide WIP

Post by zenloc » Sat Feb 20, 2010 1:54 pm

Jep the screen need 7.2v to work correctly. I have yet to find out how much amps it exactly uses. Might not be that much so with a small step up from 5v to 7.2v it might just work. But not really functional as 5v batterys are not really standard. Now getting the screen to run of the more commen 3.7v that would be more interesting. I'll be playing around with these thing soon. Got some more time coming up and can hopefully finish this guide :wtf:
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Re: Complete PsOne screen info and cutting guide WIP

Post by Kyo » Sat Feb 27, 2010 11:22 am

4x NiMH = 4.8V

Running it off that would effectively allow you to use 4 (or 8) NiMH batteries in your snes, nes, atari or other 5V console project.

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Re: Complete PsOne screen info and cutting guide WIP

Post by mako321 » Sat Feb 27, 2010 3:50 pm

just a question, but why are complete and WIP in the title at once? it's not complete if it's a wip :lol:

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Re: Complete PsOne screen info and cutting guide WIP

Post by jdmlight » Sat Feb 27, 2010 6:34 pm

mako321 wrote:just a question, but why are complete and WIP in the title at once? it's not complete if it's a wip :lol:
Clearly he's not partially in progress (as in sort-of-working on it) but completely in progress (putting a lot of effort into it). :P
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zenloc
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Re: Complete PsOne screen info and cutting guide WIP

Post by zenloc » Sat Feb 27, 2010 8:10 pm

True it's not complete :lol: I was going to finish it as soon as I can but just don't have the time at the moment. So I'll change it :wink:
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