I own a Electronica-bk-0100-01. I have only got around to connecting it up. Before that I opened up the system, checked for bad tracks, obvious issue etc. I also checked the end to end of the ribbon type cable connecting the KB to the mother board.
(this is a non membrane keyboard), so it has been switch cleaned etc.
When I power up the system I get 2 beeps and the standard basic prompt/screen but also a "Z" character on screen. I cant get any keys to go into the basic interpreter - also there is no @beep@ on a key depression.
I dont have an english language manual nor have I yet found a circuit diagram.
Does anybody have experience of this issue - or can you comment. I though the "Z" key might be stuck down, Mechanically it is not, but I may have to go meter the switch connector?