FozzTexx recently acquired a 1 MB Legend RAM S' Card, but discovered it had some glitch which affected display of hi-res screens. As part of troubleshooting, he derived a schematic from the board, then even recreated part of the bank-select logic on a breadboard!
Follow his troubleshooting to its startling conclusion. If you like stories with surprise endings, this is a good one.
https://www.insentricity.com/a.cl/287/look-at-that-scard-go
--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)