Brand: NEC
Category: Monitor
Document Type: Manual
Language: EN
Brand: NEC
Category: Monitor
Document Type: Manual
Language: EN
Uploaded: Nov. 21, 2025, 8:54 p.m.
Refer to the Registration Information section for manufacturer declarations and compliance.
| Problem | Possible Cause | Solution |
|---|---|---|
| No picture | Signal cable not connected properly. | Ensure signal cable is fully connected to the display card/computer and monitor. |
| Display card not seated properly. | Ensure the display card is fully seated in its slot. | |
| Computer power switch is off. | Turn on the front power switch and the computer power switch. | |
| Unsupported mode selected. | Check if a supported mode is selected on the display card or system. Consult your display card/system manual. | |
| Compatibility issues. | Check monitor and display card compatibility and recommended settings. | |
| Bent or pushed-in pins on signal cable connector. | Check the signal cable connector for bent or pushed-in pins. | |
| IPM mode active (front LED dark blue). | Check IPM mode status (see page 12). | |
| Power Button does not respond | Unplug the monitor's power cord from the AC outlet to turn off and reset. | |
| Image Persistence | Constant images displayed for a long period. | Turn off the monitor for as long as the previous image was displayed. Use moving images or screensavers. |
| Message "OUT OF RANGE" displayed (screen blank or rough images) | Signal clock or resolution too high. | Choose one of the supported modes. |
| Signal frequency out of range. | Choose one of the supported modes. | |
| Image is unstable, unfocused or swimming | Signal cable not fully attached. | Ensure the signal cable is completely attached to the computer. |
| Incorrect fine adjustment. | Use OSD Image Adjust controls (Fine) to adjust. May need re-adjustment after changing display mode. | |
| Compatibility or timing issues. | Check monitor and display card compatibility and recommended signal timings. | |
| Interlaced video mode or incorrect refresh rate. | Change to non-interlace and use 60Hz refresh rate. | |
| LED on monitor is not lit (no blue or amber colour) | Power switch off or power cord disconnected. | Ensure Power Switch is ON and power cord is connected. |
| Picture is not as bright | ECO MODE is ON. | Turn ECO MODE OFF. |
| AUTO BRIGHTNESS is ON. | Turn AUTO BRIGHTNESS OFF. | |
| Display image is not sized properly | Incorrect H. SIZE adjustment. | Use OSD Image Adjust controls to increase or decrease H. SIZE. |
| Unsupported mode selected. | Check if a supported mode is selected on the display card or system. Consult your display card/system manual. | |
| No Video | Computer in power-saving mode. | Touch the keyboard or mouse. |
| Video card behavior with DisplayPort. | Some video cards do not output video signal when monitor is turned OFF/ON or disconnected/connected from AC power cord under low resolution with DisplayPort. | |
| No Sound | Speaker cable not connected. | Ensure speaker cable is properly connected. |
| Mute is activated. | Check if mute is activated. | |
| Volume is too low in OSD menu. | Check the volume in the OSD menu. | |
| Brightness difference during multiple monitor usage | Auto Brightness is ON. | Change Auto Brightness to OFF and adjust brightness manually. |