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Old 11th Mar 2021, 3:14 pm   #904
SiriusHardware
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Join Date: Aug 2011
Location: Newcastle, Tyne and Wear, UK.
Posts: 11,586
Default Re: Non-working Commodore PET 3016

That's good, and that's where we benefit from the knowledge of the other PET owners past and present - I would not have known to expect that pattern, and there it is.

With UF9 out, power on, look on the SD0 to SD7 inputs to that chip (on the socket) to see what the data lines look like now that UF9 is out of circuit. Are they still all steady-state or do you see activity on those now?
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