[Mirak005]

I spotted this thread (and the earlier one) and decided to register on the forum - so this is my debut post.

I have recently dug out my old Maplin Z80 Dev Board, which I appear to remember I did very little with. Perhaps now I will be able to tinker with it.

Thanks for the advice regarding the backup battery. Mine was starting to crytalize and would have soon eaten its way through the components, board and probably the shoebox the the board was in. I've removed it and soldered a battery clip to the board so I can have two AA rechargeable cells providing data retention for the RAM chip. This appears to be working OK.

My board has the stick-on keypad and an 8 digit 7 segment LED display and I have the original build manual and I've also found an earlier build article for the version with the proper key Hex pad.

Slowly working my way through the test information - it appears to be working OK so far.

Now to 3D print a case for the beast..

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