UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Non-working Commodore PET 3016

SiriusHardware · 23rd Feb 2021, 4:58 pm

With those three main devices removed the only components still left on the unbuffered data bus (apart from the data bus buffers) are the PROMs, so once again, with UC5,6,7 still out, can you remove combinations of UD6-UD9 to see if any of those allow the CPU to run when removed?

The EPROM which John programmed with the UD7 code for you, what sort of device was it in the end?

23rd Feb 2021, 4:58 pm	#621
SiriusHardware Dekatron Join Date: Aug 2011 Location: Newcastle, Tyne and Wear, UK. Posts: 11,588	Re: Non-working Commodore PET 3016 With those three main devices removed the only components still left on the unbuffered data bus (apart from the data bus buffers) are the PROMs, so once again, with UC5,6,7 still out, can you remove combinations of UD6-UD9 to see if any of those allow the CPU to run when removed? The EPROM which John programmed with the UD7 code for you, what sort of device was it in the end? Last edited by SiriusHardware; 23rd Feb 2021 at 5:04 pm.