19 Feb
2008
19 Feb
'08
1:51 p.m.
And I remember some monitors having the color burst signal defeated by a
front panel switch on the monitor....
George
=========================================================
George L. Rachor Jr. george at rachors.com
Hillsboro, Oregon http://rachors.com
United States of America Amateur Radio : KD7DCX
On Tue, 19 Feb 2008, Jim Battle wrote:
Roger Holmes wrote:
On 19 Feb, 2008, at 18:00, cctalk-request at classiccmp.org wrote:
That is odd -- years ago when I studied the video logic in the II+, there
were jumper options for PAL that changed the video timing. Perhaps it wasn't
good enough and thus the NTSC->PAL conversion boards, but the cut & jump
traces were certainly there.
I could be mistaken, but I think another feature added by the + was the
"color killer" feature -- a control bit that removed the color burst signal
so that you'd get true B&W video when you just want straight text.
From: Tim Riker <Tim at Rikers.org>
I'm not sure what a europlus version of the machine is though.
The euro means 110/240 volt switchable power supply. I don't think there
was any other change, though it was common to have a colour card (in slot
7?) which took the NTSC signal, decoded it and re-coded into PAL. I guess
there was a corresponding SECAM card for France. As you probably know, the
plus mean floating point Basic.