Un-EURO-ing the Europlus?

[Linards Ticmanis <ticmanis@coli.uni-sb.de>]

Hi all,

since PAL cards for the II Europlus don't exactly grow on trees, and 
since it is rather easy nowadays to find NTSC-video capability even in 
small European TV sets (e.g. all those made by Thompson) and most PC TV 
cards, and thirdly since 60Hz don't give you quite as much of a headache 
as 50Hz, (also there's quite enough EUROs in Europe nowadays... ;-) I 
wonder what I'd have to do to convert a II Europlus Mainboard (Revision 
7) back to II+? I understand I have to open up solder pads 7 and 8 to 
prevent some video signals to reach slot 7, so it becomes usable for 
other cards again. I also understand I have to swap the Quartz for a 
standard 14.318... MHz one, if possible without destroying the old 
14.25... one since it is almost impossible to get. Then what do I have 
to change to go back to 60Hz video, activate the 65th cycle stretch and 
so on?

Any help greatly appreciated. I guess it should be in some technical 
documentation that describes how to modify the board for the Europlus, 
which I'd simply have to reverse then. Unfortunately I don't have any 
such docs.

--

Linards Ticmanis

 The Master said, "The business of laying on the colors follows the
preparation of the plain ground."