Making the RGB signal stronger?

M pro · 03-13-2003, 05:32 PM

Well I recently got a Psone LCD that only works on RGB sadly :/

Now I have got this to work with my VGA output but the signal is a little weak and the colors look washed out as I have to put up the brightness a lot to see the image

Now I managed to get it looking a little better by connecting the sync to the RED input buy resisting the current so it’s not to bright. “see pic”

before sync mod

After

But this is just a quick fix and I would like to boost the RGB signal so it looks better.

Dose anyone know how to do this?

Oww and hi by the way

frodobaggins · 03-13-2003, 05:54 PM

Quote:

Originally posted by M pro
Well I recently got a Psone LCD that only works on RGB sadly :/

Actually, I think you just made a lot of peoples day

M pro · 03-13-2003, 05:57 PM

I did?

frodobaggins · 03-13-2003, 06:01 PM

Quote:

Originally posted by M pro
I did?

you just made it known that the screens can be hacked to vga input using the rgb, always could have been possible, but I don't think I've heard of anyone trying yet.

frodobaggins · 03-13-2003, 06:02 PM

btw, a lot of monitors use sync on green, don't know enough about it to know if that'll help or not

Defiler · 03-13-2003, 06:11 PM

Did you make solder connections? Can you take a pic of where the VGA signal is inputted in to the LCD?

M pro · 03-13-2003, 06:26 PM

It wasn’t that hard really

I took the RGB from pins 1,2,3 on the VGA card and connected them to RGB pins 9,11,12 on the LCD

Then I took the H sync and V sync pins 13,14 on VGA and joined them together and then connected them to pic 6 on the LCD

Obviously I connected ground to pin one

And last but not lest I connected a resister to the red input then I connected the V and H sync to the resister.

Set the card to run at 15ohm and that was it

here it is in windows

but i really need to know how to boost the RBG signal

frodobaggins · 03-13-2003, 06:54 PM

why don't you just adjust the gamma ?

And it looks good from here

FALLENNITE · 03-13-2003, 11:44 PM

WOW you got it to work... I tried earlier this year and burned out 2 of them. What resoultion are you getting on them and how does it look with video And the last qt can you take a picture of the connection. I am interested how you got it to work without burn out the board

frodobaggins · 03-14-2003, 01:12 AM

someone help the man, maybe he'll show us his work

oddcomp · 03-14-2003, 02:28 AM

dam i wonder if that would work on other lcd units

frodobaggins · 03-14-2003, 03:09 AM

Quote:

Originally posted by oddcomp
dam i wonder if that would work on other lcd units

these lcds I think have a special section for RGB from the PS One connector

M pro · 03-14-2003, 09:08 AM

Well after a little wiring mistake I made yesterday looks like I got it working well.

Some pics

Winamp

Games are always good

I’ll post a how to later so you guys know how to make this work

frodobaggins · 03-14-2003, 02:01 PM

sweet

NJay · 03-14-2003, 04:13 PM

This has made my day as I have a 5.6inch composite screen fitted in my 2001 celica connected to my eden via the tv-out. Its ok with some serious larging of the fonts and use of myHTPC but something a bit clearer that would still fit would be good.

If you could provide step by step details on how to hook up one of these PsONE screens to a 15pin monitor cable that would help me and I would imagine lots of others