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

ScottishColin · 14th Apr 2021, 6:10 pm

OK - so here's a thing that may be useful to others.

While I'm waiting for the conductive paint to turn up, I tried something I've seen recommended elsewhere. I took a normal A4 blank sheet of paper and folded it up. Carefully, I rubbed it on each of the conductive pads on the bottom of the keys. It actually got quite dirty. I plugged/screwed the keyboard back together and all the keys bar 4 worked just fine.

I gave those 4 a working over with the paper and I now have a fully working keyboard. So I guess I've gone too early on the conductive paint, but if my paper-rubbing fix turns out to be temporary, it'll be useful.

Anyway - the keyboard is screwed back in and fully working.

What remains now is to test the ports - I can test the second cassette port easily enough.

Can anyone help with code to test the remaining ports?

Colin.

14th Apr 2021, 6:10 pm	#1636
ScottishColin Octode Join Date: May 2012 Location: Perth, Scotland Posts: 1,804	Re: Non-working Commodore PET 3016 OK - so here's a thing that may be useful to others. While I'm waiting for the conductive paint to turn up, I tried something I've seen recommended elsewhere. I took a normal A4 blank sheet of paper and folded it up. Carefully, I rubbed it on each of the conductive pads on the bottom of the keys. It actually got quite dirty. I plugged/screwed the keyboard back together and all the keys bar 4 worked just fine. I gave those 4 a working over with the paper and I now have a fully working keyboard. So I guess I've gone too early on the conductive paint, but if my paper-rubbing fix turns out to be temporary, it'll be useful. Anyway - the keyboard is screwed back in and fully working. What remains now is to test the ports - I can test the second cassette port easily enough. Can anyone help with code to test the remaining ports? Colin.