looks to me like the 32768 hz crystal is dead.

On Fri, Jul 4, 2025 at 8:56 AM Thomas Morehouse <[email protected]>
wrote:

> Friday update:
>
> Batteries replaced with fresh AA alkalines yesterday (Thursday).  Left
> powered off overnight to recharge backup battery.  Powered up this morning,
> but no change.  See attached screen photo.
>
> The screen clock seems to be working, but date never changes from 1/1/1900.
> Top four lines of screen appear normal, but below that, definitely not
> normal.
>
> The "center" screen line consists of constantly changing characters.
> Lowest screen line appears to be reiterations of "Bytes free" - without the
> "Byt".
>
> None of the keyboard keys have any effect; when "cursor" is over BASIC,
> hitting Enter changes nothing - screen remains unchanged.
>
> I've done several Cold Starts (CTRL+Pause/Break+Reset) and
> (CTRL+Pause/Break+Power switch), but no apparent change.
>
> Note:  when I do a Power On, the screen quickly shows the correct original
> default M100 screen, then immediately changes to the garbled screen.
>
> Onward through the fog!
> Thanks.
> Tom M.
>

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