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

mikew8760 · 3rd Mar 2020, 11:11 am

Hi,
I stumbled across the tread on this site concerning the above when trying to find some info on it. So I was lucky to find the find the code for the EPROM, but having now popped it into the socket I have discovered there is a board fault! I happen to have a Nicolet Z80 NICE, so that helps, but not much, as I have long since lost the board schematic.
I wonder if any of those who posted on the original threads (now closed) might have a schematic to share with me?
I notice that I had made a slight mod to the board, as there is a bodge wire from the 'selector' links and pin 1's of two IC's are lifted and wired together for some reason. I wonder if there was a wiring fault on the pcb?

Any help gratefully received.

3rd Mar 2020, 11:11 am	#1
mikew8760 Triode Join Date: Mar 2020 Location: Bristol, UK. Posts: 18	Maplin Z80 SBC Hi, I stumbled across the tread on this site concerning the above when trying to find some info on it. So I was lucky to find the find the code for the EPROM, but having now popped it into the socket I have discovered there is a board fault! I happen to have a Nicolet Z80 NICE, so that helps, but not much, as I have long since lost the board schematic. I wonder if any of those who posted on the original threads (now closed) might have a schematic to share with me? I notice that I had made a slight mod to the board, as there is a bodge wire from the 'selector' links and pin 1's of two IC's are lifted and wired together for some reason. I wonder if there was a wiring fault on the pcb? Any help gratefully received.