UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

John Earland · 28th Mar 2020, 1:25 pm

I have bought another ZX81 of eBay! (I have three now; none of which work perfectly!)

However, with this latest one-this is really interesting. It is an issue one model dated 1980. I have modified the output so that it works perfectly on LCD. The ribbon is badly damaged though. When I opened it up someone must have tried to do something because it’s ripped. I’ll have to source a replacement unless I can come up with something to link the keyboard and input.

However, I have tried it with another keyboard attached and it works really well except, that it won’t load from a cassette. Every time I try, the unit freezes and I have to unplug it. Could this be a bad ULA again? Is this worth starting a new thread for?

28th Mar 2020, 1:25 pm	#209
John Earland Hexode Join Date: May 2013 Location: Middlesbrough, North Yorkshire, UK. Posts: 442	Re: Zx81 I have bought another ZX81 of eBay! (I have three now; none of which work perfectly!) However, with this latest one-this is really interesting. It is an issue one model dated 1980. I have modified the output so that it works perfectly on LCD. The ribbon is badly damaged though. When I opened it up someone must have tried to do something because it’s ripped. I’ll have to source a replacement unless I can come up with something to link the keyboard and input. However, I have tried it with another keyboard attached and it works really well except, that it won’t load from a cassette. Every time I try, the unit freezes and I have to unplug it. Could this be a bad ULA again? Is this worth starting a new thread for?