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Display image is not sized properly
• Change “EXPANSION” for Coarse adjustment.
• Check to make sure that a supported mode has been selected on the display card or system being used.
(Please consult display card or system manual to change graphics mode.)
• When using an HDMI input, please change “OVER SCAN”.
• Check to make sure that the appropriate resolution has been selected in “H.RESOLUTION” and “V.RESOLUTION”.
No Video
• If no video is present on the screen, turn the Power button off and on again.
• Make certain the computer is not in a power-saving mode (touch the keyboard or mouse).
• Some display cards do not output video signal when monitor is turned OFF/ON or disconnect/connect from the AC power
cord under low resolution with DisplayPort.
• When using an HDMI input, please change “OVER SCAN”.
No Sound
• Make sure the audio cable is proper connected.
• Check to see if mute is activated.
• Check the volume in the OSD menu.
• Check selected OSD’s Tools to “SOUND INPUT”, when DisplayPort or HDMI is in use.
• If headphones are connected, the speakers will not emit any sound.
Brightness variations over time
• Change Auto Brightness to OFF and adjust brightness.
NOTE: When Auto Brightness is set to ON, the monitor automatically adjusts brightness based on the environment.
When the brightness of surrounding environment changes, the monitor will also change.
USB Hub does not operate
• Check to make sure the USB cable is properly connected. Refer to your USB devise User’s Manual.
• Check if the USB upstream port on the monitor is connected to the USB downstream port on the computer. And make
sure the computer is ON.
Human sensor does not work
• If human icon on SENSOR SETTING (HUMAN SENSING) is located on vermilion color, it is detected that there is
person.
• Make sure there is no object in front of Human sensor.
• Make sure there is no equipment which radiating infrared rays in front of monitor.
ControlSync does not work
• Check to make sure that ControlSync cable is connected correctly.
• Check to make sure that ControlSync cable is not in “loop” connection.
• Master monitor should be connected OUT connector only.
• Please use provided ControlSync cable.
• You can use up to 5 sub monitors via ControlSync.
Color irregularities on screen
• Reduce BRIGHTNESS.
• Set UNIFORMITY to “ON”.
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