It's too late to track down batteries at the moment, but my trusty 42S for the last 15 years or so, had a horizontal line halfway across the screen and was unresponsive. Took the batteries out and put back in. Now it only lightly beeps when I press ON (descending frequency each time). Does this sound like failing batteries? Hopefully after 15 years it's just batteries and not a complete meltdown.
CHUCK