Crisis averted... a cold reset holding down CTRL-BREAK-RESET fixed it up. I had assumed turning off the memory power would be enough.
On Sun, Mar 25, 2018 at 11:34 AM, Kevin Becker <ke...@kevinbecker.org> wrote: > I was just sorta messing around on my Model 102 just now, transferring a > few BASIC programs with dlplus and setting up some RAM images in my REX > when suddenly I tried to switch to an older RAM image and the screen came > up with a single question mark ? on each line and a ?S on the last line. > Power off/on and it showed the same thing. I pulled the batteries and > turned off the backup battery and then I got random pixels all over the > display. If I hit enter and type "beep" nothing happens either. I pulled > the REX out and tried using a power adapter instead of batteries with no > luck. > > Any ideas? I had it apart a few months ago to replace the NiCad and none > of the capacitors looked obviously bad to me. >
