Hitachi CP-EX3051WN User's Manual And Operating Manual page 24

Operating
Selecting an input signal
INPUT
24
INPUT MYBUTTON
ASPECT PbyP AUTO FREEZE
INPUT
MAGNIFY FOCUS ZOOM VOLUME
ON
OFF
PAGE
UP GEOMETRY PICTURE MUTE
DOWN INTERACTIVE NETWORK BLANK
ESC MENU
ENTER
OSD MSG RESET
59
USB TYPE B
INPUT