Dell SE178WFP manual Back to Contents

No Input Signal when user controls pressed

OSD Lock

No picture, the LED light is blue. When press "+", "-" or "Menu" key, the message " No input signal " will appear.

All buttons are locked except the "menu" button. No user adjustments are allowed.

•Check the signal source Make sure the Computer is not in power saving by moving mouse or pressing any key on the keyboard.

•Check whether the signal cable is plugged in and seated properly. Re-plug the signal cable if necessary.

•Re-boot the computer or video player.

•Press the "menu" button for over 15 seconds to unlock the OSD menu.

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