Users Guide

Troubleshooting │ 49
Product-specific problems
Specific symptoms Possible solutions
Screen image is too small • Check the Aspect Ratio setting in the Display settings OSD.
• Reset the monitor to Factory Settings (Factory Reset).
Cannot adjust the monitor
with the buttons on the
bottom of the panel
• Turn off the monitor, unplug the power cord, plug it back, and then turn on
the monitor.
• Check if the OSD menu is locked. If yes, press and hold the Exit button
(button 4) for four seconds to unlock.
No input signal when user
controls are pressed
• Check the signal source. Ensure that the computer is not in standby or
sleep mode by moving the mouse or pressing any key on the keyboard.
• Check if the video cable is plugged in properly. Disconnect and reconnect
the video cable if necessary.
• Reset the computer or video player.
The picture does not fill the
entire screen
• Due to different video formats (aspect ratio) of DVDs, the monitor may
display in full screen.
• Run the built-in diagnostics.