: press to increase values in menu options, : press to confirm menu options, 7/=: press to perform the following – Epson TOUCH DH200 User Manual

Page 13: Menu: move cursor left, Clr;4: press to perform the following, Live viewing: show/hide onscreen display (osd), Playback: play/pause playback, Menu: move cursor up, /8: press to perform the following, Menu: move cursor right