Dell SE178WFP Monitor - Manual (Page 20)

Back to Contents Page
No Input Signal when user
controls pressed No picture, the LED light is blue. When
press "+", "-" or "Menu" key, the message
" No input signal " will appear. l Check the signal source Make sure the Computer is
not in power saving by moving mouse or pressing
any key on the keyboard.
l Check whether the signal cable is plugged in and
seated properly. Re
-plug the signal cable if
necessary.
l Re-boot the computer or video player.
OSD Lock All buttons are locked except the "menu"
button. No user adjustments are allowed. l Press the "menu" button for over 15 seconds to
unlock the OSD menu.