Sinclair ZX80 / ZX81 Forums

I did wonder if there was an English manual for it = but only out of interest - I have never owned one!

Thanks Didier - I didn't realise it was you on those other forums

Have you thought of reaching out to Cyber-PAPY on https://translate.googleusercontent.com/translate_c?anno=2&depth=1&hl=en&rurl=translate.google.com&sl=fr&sp=nmt4&tl=en&u=https://forum.system-cfg.com/viewtopic.php%3Ff%3D11%26t%3D5196%26start%3D45%26sid%3D04adf31d57abde31cc27bc0c9b64688a&xid=17259,15...

Kai wrote: ↑

Wed Jan 23, 2019 8:19 am

The schematic on XavSnap was drawn by me.
Now I have the name: Didier Pous from Bordeaux. Anybody know him?

I have an email address for him - send me a PM with what you want and I will send him an email

Many thanks - not come across this one before - it is a neat little game

Actual p file is now attached

I now that some people still mix up the EAR and MIC sockets - on a ZX81 they share the same circuit (as far as I recall), which doesn't help, but you need to ensure that to load programs, the lead is plugged into the EAR socket!

Here https://www.smart-prototyping.com you can get flexible PCBs for ZX81 keyboard size for $480 for 10. That is $48 each. They make flexible pcbs down to 0.1mm. Except they are based in China - so you also have to add on US taxes and potentially import duties as well - will be close the $60 each a...

I did start a discussion a few years ago about CoCo membranes but there was just not enough interest - and not helped by several different membranes in these machines. The main market seems to be in the USA and so ideally you need a manufacturer in the US because of the costs of importing them etc. ...

You have a ZXpand Keyboard Membrane (blue tails). We had an issue with the bonding of the silver ink on some of these (the factory are still not sure why) so the easiest is to send you a replacement. However, it could also indicate that some of the pins inside the molex connectors are corroded or be...

Thanks for the pictures XavSnap - that is helpful as we can all see the keys link to the middle pin in the 5 way connector.

It will be interesting to see what the issue is....