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Old 8th Dec 2020, 4:38 pm   #142
SiriusHardware
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Join Date: Aug 2011
Location: Newcastle, Tyne and Wear, UK.
Posts: 7,310
Default Re: I found it! A very sorry looking MK14.

Hmm, actually, you only get a single 'O' (or with the old OS, '-') if the system is held in reset after it has been running correctly, since the segment output hardware remembers the last character which was sent to it.

Edit: Just caught your response. Sorry to have to ask, but you've checked the +5V rail is spot-on volts wise?
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