Hitachi CM641ET Monitor
 

A Hitachi CRT Computer monitor has developed a problem.

The front panel buttons does not work properly anymore. The Adjust - button
acts as Save button and Adjust + acts as Adjust - button.

Sadly the rotation setting has been set all wrong and now cannot be set
properly because of the button problem. Anyway know if it's possible
internally or via buttons to somehow reset all monitor settings to default?