I pulled this out of the attic, powered it up. It beeped three times but no power to the display.
Opened it up and the board is very battery-bombed:

Like attempting CPR on a supermarket chicken, I've given it a soapy wash and will use a bit of vinegar to get the corrosion off:

Might the beeping mean there's any hope for it?
Opened it up and the board is very battery-bombed:

Like attempting CPR on a supermarket chicken, I've given it a soapy wash and will use a bit of vinegar to get the corrosion off:

Might the beeping mean there's any hope for it?



