68kMLA Classic Interface

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Radius full page display for Classic, vga cable?
Posted by: bengi3 on 2018-07-24 00:04:16
I found this one in a busted Macintosh Classic that I have just fixed. I was wondering to use it but the thing is missing the vga cable and I cannot get to find the 8-pin video out schematic. Anybody can help?

image.jpeg

Posted by: Compgeke on 2018-07-24 06:22:19
So quick note, even with a pinout I have my doubts about an FPD card working with VGA. The native resolution is 640x870 at (usually) 64 or 68 kHz.  Even if you can see something on the screen, it's going to look terrible unless someone made a VGA portrait CRT.

While not super useful, if I get a chance I'll probe out what goes where from the connector. I do have a real FPD here and the pins are video, h-sync and and v-sync. 



Posted by: Trash80toHP_Mini on 2018-07-24 08:30:12
What he said! Have you checked the Radius Q&A to see which FPD is compatible with your card? Whatever you try you'll need a really good multisync display cuz It ain't VGA. There's a thread somewhere around here where I was working with another member at getting our SE TPDs up and running. Don't remember which of us started it, but a lot of the info you'll need to get started should be there. We didn't get too far, but you may have some luck since yours is a later version.

edit: luckily, a quick bookmark search turned something up: http://radius.vintagebox.de/RadiusQA/FPD64_68.html

Posted by: Bolle on 2018-07-24 10:04:39
Multisync TFTs that sync to oddball FPD resolutions do exist, though.

Posted by: bengi3 on 2018-07-24 11:44:05
Thank you, will start studying!

Posted by: Trash80toHP_Mini on 2018-07-24 19:45:07
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