NEC EX241UN-H-BK 23.8" 16:9 IPS Monitor (Wall Mount) - Manual (Page 28)

English-26
Display image is not sized properly
• Use the OSD Image Adjust controls to increase or decrease the 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 key 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 speaker 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.
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 cord is properly connected. Refer to your USB device 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/Ambient light sensor* does not work
• Make sure there is no object in front of Human/Ambient light sensor.
• Please use the provided stereo micro plug cable.
• Check to make sure that stereo micro plug cable is connected correctly.
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 24 sub monitors via ControlSync.
No picture in multiple monitor connection
• Check to make sure that the resolution has been lower than the recommended resolution setting.
• Check to make sure that the display card supports MST (multi-stream transport).
• The number of monitors daisy-chained through SST (single-stream transport) depends on HDCP contents limitation.
• Monitors should be connected by the included DisplayPort cable.
• Check to make sure that DP OUT MULTISTREAM is “AUTO” and BIT RATE setting is “HBR2” when using MST (multi-
stream transport) (see page 13).
*: This function is available when option unit sensor is used.