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Re: Apple II video problem?



MdntTrain wrote:
I have a different, but similar (I think) problem with one of my IIgs
monitors. It displays a reasonable image, however the whole thing is
on a slight lean. That is, one top corner of the display is slightly
higher than the other (can't remember which right now - I'm at work).


Just one corner, or the whole image is rotated?

If it's the whole image, then what Michael said about yolk rotation
will work.  If it's just a corner, it could be time for a crt
degaussing... or other magnet fiddling.

If the upper few lines of the raster are not aligned with the
rest of the raster, or "tearing", the problem is usually horizontal
hold being marginally adjusted.  With the early rev Apple II boards,
the vertical sync pulse was not serrated, which can also cause the
horizontal oscillator in the monitor to drift off phase during the
sync pulse interruption.

-michael

NadaNet file server for Apple II computers!
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