2001 Diagnostic Test in Kernal

From: vossi <vossi_at_ceffy.de>
Date: Tue, 6 Oct 2020 00:53:14 -0500 (CDT)
Message-ID: <1601963594721-0.post_at_n4.nabble.com>
Hi all,
somme years ago I built the diagnostic test dongles for the PET2001.
They should start the diag routine in the original ROMs, move something on
the monitor and flash the LED on the board. I had one PET in the past where
it worked fine, in another PET not.

Now I testet again in an EU-PET2001 with RAM/ROM board+original ROMS
selected and my US-PET2001 with original ROM set (2316s). In both machines
the tape motor stopped and the screen was cleared but nothing else - only
darkness ;)

Why - any ideas ???

Christian



-----
greets
Christian
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Received on 2020-10-06 08:00:47

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