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

SiriusHardware · 19th Feb 2021, 3:18 am

Colin, could you please scope the following pairs of pins for us, this time with the data pins 26-33 of the CPU disconnected from the system so that the CPU will run. I know it runs with just several data pins connected but we need all the data buffer outputs on the CPU side to be connected to the same thing (...nothing).

UE9
2,18
4,16
6,14
8,12

UE10
2,18
4,16
6,14
8,12

19th Feb 2021, 3:18 am	#605
SiriusHardware Dekatron Join Date: Aug 2011 Location: Newcastle, Tyne and Wear, UK. Posts: 11,575	Re: Non-working Commodore PET 3016 Colin, could you please scope the following pairs of pins for us, this time with the data pins 26-33 of the CPU disconnected from the system so that the CPU will run. I know it runs with just several data pins connected but we need all the data buffer outputs on the CPU side to be connected to the same thing (...nothing). UE9 2,18 4,16 6,14 8,12 UE10 2,18 4,16 6,14 8,12