Re: It works! IIgs RGB on PS-one LCD

[David Murray <spamsucks@stopspam.com>]

I kind of made a website for this project... has a schematic too:

http://galaxy22.dyndns.org/shuttlecraft/psonelcd.html

I'll try to take some better pictures tonight.  I am in the process of 
making a nice 15-pin interface cable and putting it all back together so 
it looks nice.

>     What's the response time like on this LCD? Do you see ghosting or
> blurring when scrolling windows or the mouse pointer? Since it was 

Honestly don't know.  I've never actually used an Apple until this one 
was given to me a few days ago.  I am a big Commodore 8-bit fan, and do a 
lot of technical stuff with those.. but Apples are new to me and I just 
got a system disk made for it a few days ago.. WHich is shown there on 
the bootup screen.  I haven't got any games for it yet, but I will be 
downloading some soon and trying them.

>     According to one site, it's resolution is 640x480 (the maximum of
>     the 
> Playstation 1). http://www.bit-tech.net/article/136/

I do not believe it has that resolution.  I can see the physical pixels 
very clearly when I look closely.  The vertical resolution is matching up 
perfectly to the signal sent by the IIgs.  The horizontal looks okay in 
40-column mode, but in 80-column mode you can quite clearly tell that 
every-other pixel is missing.  It is still readable, however.  

>     Back on the PSOne LCD. Does it support standard composite input?
> I was thinking how it might make an excellent display for an Apple

Yes. it does.  It has an A/V jack on the back specifically designed for 
DVD players and the like.  However, I tried the IIgs on this port and it 
looked awefull.  Mostly because the color-fringe effect, it was like a 
rainbow just reading text.  When at the BASIC prompt in 40-column mode 
with no color, the text was very sharp, though.