On Fri, May 17, 2019 at 10:22 AM Ed Graffius <[email protected]> wrote: > > ok, opened it up and the nicad has 4.8ish volts on it.
Good. I'd plan to remove or replace it soon anyway. > Theory: lack of -5v prevents the LCD from lighting up? Yep. Check out the M100 service manual (https://ftp.whtech.com/club100/doc/m100ServiceManual.pdf) for troubleshooting steps on the power supply. It's a great reference. > > btw - the <enter>, 'B''E'E'P' <enter> works, so that means the CPU is CPUing? Yep. Display issues only. Should be a simple fix. Congrats on your acquisition. -Josh
