HP EPM-441A User Manual page 122

Menu Reference
Front Panel Menu Reference "System/Inputs" Menu
Display
Press this softkey to access a menu which allows you to set the
defaults for contrast and brightness.
Press this softkey to increase the display contrast.
Press this softkey to decrease the display contrast.
Set Contrast
Press this softkey to set the default contrast to that currently
displayed. Note, this key changes the factory default setting.
Set Brightness
Press this softkey to set the brightness. Note, this key
changes the factory default setting.
Version
Press this softkey to display: the model number; option
structure; serial number; firmware, bootrom and DSP
revisions.
3-22 HP EPM-441A User's Guide