Sinclair ZX80 / ZX81 / Z88 Forums

Thanks, I'll take a look at this tomorrow at work as I've access to more test gear there. Nice to have somewhere to start.

Hi, I recently picked up a ZX-81, issue 3 board. After introducing myself it was suggested I post here to get further advice. The only thing I have done is replaced the keyboard, no other mods. Keyboard inputs seem to work but what is displayed looks corrupted as shown in the image below, almost as ...

Thanks for the welcome Mark,

I'll wait until I've got a replacement keyboard and do a few more tests and then will post to the hardware section,

Mike

Hi all, just thought I'd introduce myself. My intro to the ZX-81 was a kit I got as a Christmas present, we weren't too well off and the price difference between that and the built computer obviously meant a lot to my parents. I spent most of the day building it only to find it didn't work. I checke...