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SiriusHardware · 20th Sep 2022, 9:39 am

Hi AJ, I was hoping this thread might attract your attention.

BrackenFix did say he has had all of the socketed ICs out and back in already, what you suggest could hold true but it does look as though the CPU is running code OK.

A folded-over pin on the character generator ROM could also possibly account for the display oddness.

I think we'd better let BrackenFix confirm that his machine is the one you have indicated before we go in much deeper.

20th Sep 2022, 9:39 am	#15
SiriusHardware Dekatron Join Date: Aug 2011 Location: Newcastle, Tyne and Wear, UK. Posts: 11,560	Re: 1978 Commodore PET project Hi AJ, I was hoping this thread might attract your attention. BrackenFix did say he has had all of the socketed ICs out and back in already, what you suggest could hold true but it does look as though the CPU is running code OK. A folded-over pin on the character generator ROM could also possibly account for the display oddness. I think we'd better let BrackenFix confirm that his machine is the one you have indicated before we go in much deeper.