Re: Apple II video problem?

["Michael J. Mahon" <mjmahon@aol.com>]

jsnospam@cimmeri.com wrote:
> Hi.  Unmodified Apple ][ w/ rev 3 mobo.  Possibly having a video
> problem -- see:
>
> http://hometown.aol.com/MdntTrain/A2Vid.jpg
>
> 3 other Apple II's (later revs) on this same monitor give properly
> centered video.  Seems I can't escape these left shifted video issues
> (stop laughing, Michael).

Hey, I'm just astonished that you have found more than one of these
very rare conditions!

> Has anyone seen or experienced this on a ][?   I'm wondering if it's
> perhaps not a normal rev 3 behavior.

AFAIK, the video sync, blanking, window timing was never changed
in the ][->][+ line, so *something* weird is going on...

-michael

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