Brian is right that whatever happened to make tge builtin ROM disappear is pretty serious. Birt has some good videos <https://www.youtube.com/watch?v=1adlQo3UI90> on fixing up such problems on his YouTube channel <https://www.youtube.com/@HeyBirt>. Even if you don't have the time right now to completely fix it, it would be good to open it and clean up any corrosion.
One last thing to try, although I'm pretty sure it will be exactly like running it from the menu: On my Tandy 200 you can launch MSPLAN from BASIC by using `CALL 61167, 1`. What does it do on yours? —b9 On Tue, Aug 6, 2024 at 8:00 AM Brian K. White <[email protected]> wrote: > I can only confirm that MSPLAN works with no option rom installed. > > Could be either bad ram or bad rom. There are two rom chips inside > besides the option rom socket outside. Or anything else like a corroded > trace making a stuck address line. These units all have leaking caps and > batteries by now, even if they are still working. > > Don't be loath to open it, run to open it to arrest the development from > getting worse as soon as possible. > > -- > bkw > > > On 8/5/24 09:51, B 9 wrote: > > That's actually pretty cool and I'm curious what GTE's firmware does. > > What software version are you seeing? > > > > I'm not sure why they would overwrite MSPLAN yet leave it in the menu, > > but if they added an "option ROM", I believe you can run it with `CALL > > 61167, 2`. > > > > —b9 > > > > > > On Sun, Aug 4, 2024 at 6:10 PM Tom Blum <[email protected] > > <mailto:[email protected]>> wrote: > > > > Hello, > > > > New to the community and apologies if I'm raising a question/issue > > already addressed. Just purchased a working T200. Power cycles > > nominally and shows classic menu options. Selecting Multiplan from > > the menu places the T200 into a frozen state. LCD screen appears to > > fill (shaded) completely but program does not start, no visible > > text/graphics. Resetting and power-cycle necessary to get back to > > the main T200 menu. Noted that this T200 has a property label on > > the bottom indicating that GTE, Inc. (the telecom company) was a > > previous owner and appears to show a unique GTE software version #. > > Is it possible that the original/built-in Multiplan ROM was (or > > could be) removed from the T200. As a newbie to the T, am loathe to > > open up a working unit to see if a ROM is missing. Is there a past > > or present ROM option module for the T200 that would have Multiplan > > installed (or installable)? Tom > > > > -- > bkw > >
