On Thu, Jun 11, 2020 at 2:37 PM Adrian Graham via cctalk <cctalk at classiccmp.org> wrote: > > The 4116's are soldered to the board, too.... > > You’ve just mentioned the magic 4116 word, I’d bet some of your dollars that it’s either one of those that’s gone south or the -5V required to run them Definitely check the -5V for the 4116s. -ethan