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

ScottishColin · 1st Mar 2021, 6:29 pm

OK - I went back to UD2 pin 14 to see if that would trigger any data on the scope to UD6 Pin 11 - nothing, but it does with pin 15 (Sel D), so to me that points to a UD2 problem?

Colin.

1st Mar 2021, 6:29 pm	#729
ScottishColin Octode Join Date: May 2012 Location: Perth, Scotland Posts: 1,813	Re: Non-working Commodore PET 3016 OK - I went back to UD2 pin 14 to see if that would trigger any data on the scope to UD6 Pin 11 - nothing, but it does with pin 15 (Sel D), so to me that points to a UD2 problem? Colin.