CBM8032 - wobbly screen - test-drb@ccmp.vtda.org

28 Sep 2001

On Sep 28, 18:26, Tony Duell wrote:

...
  Now, the 8032 uses a 6845 CRT controller chip IIRC. It
sets the sync
 frequencies. Maybe it's configured differently on UK and US machines.
 Maybe, therefore, one of the ROMs is different between UK and US machines
 (I don't recall any setup links on the CPU board to configure this, as
 some other manufacturers used). Does anybody know if UK PETs have 50Hz
 vertical display systems? If they do, then you might need a dump of the
 appropriate ROMs. 
It does use a 6845, and it does still run at 60Hz.  At least, the ones I've
worked on are 60Hz and I think the 4000 series did too; I don't know if
that changed in any later models.

-- 
Pete						Peter Turnbull
						Network Manager
						University of York