What to do if my Lenovo L28u-30 screen is blank and the power indicator is amber?
If your Lenovo monitor's screen is blank and the power indicator shows amber, it likely means the monitor is in Standby/Suspend mode. To restore operation, press any key on the keyboard or move the mouse. Also, check the Power Options settings on your computer.
Why is there no image on my Lenovo Monitor but the power indicator is amber?
If your Lenovo monitor's power indicator is amber but there is no image, the video signal cable may be loose or disconnected from the system or monitor. Ensure the video cable is properly connected to the system. Alternatively, the monitor's brightness and contrast might be at the lowest setting. Adjust the brightness and contrast settings on the OSD menu.
What to do if my Lenovo Monitor power indicator is not lit and there is no image?
If the power indicator on your Lenovo monitor is not lit and there is no image, ensure the power cord is connected properly and that the outlet has power. Power on the monitor. Try using another power cord and another electrical outlet.
How to fix unacceptable image quality on my Lenovo L28u-30 Monitor?
If the image quality on your Lenovo monitor is unacceptable, make sure the video signal cable is firmly plugged into both the system and the monitor. Also, the color settings may be incorrect, so select another color setting from the OSD menu. Finally, perform automatic image setup.
How to fix fuzzy text or blurry image on Lenovo Monitor?
To fix fuzzy lines in text or a blurry image on your Lenovo monitor, adjust the resolution settings on your system to match the native resolution for this monitor: 3840 x 2160 at 60 Hz. Perform automatic image setup. If automatic image setup does not help, perform manual image setup. When working in the native resolution, you may find additional improvements by adjusting the Dots Per Inch (DPI) setting on your system.
What to do if my Lenovo L28u-30 Monitor says 'Out of Range'?
If your Lenovo monitor displays 'Out of Range', it means the system is set to a display mode not supported by the monitor. If replacing an old monitor, reconnect it and adjust the display mode to within the specified range for your new monitor. If using a Windows system, restart the system in safe mode, then select a supported display mode for your computer.
Why are some pixels discolored on my Lenovo Monitor?
Discolored pixels are a characteristic of LCD technology and not necessarily a defect. However, if there are more than five missing pixels on your Lenovo monitor, contact the Support Center.
Provides essential guidelines for the safe operation and handling of the monitor.
General instructions for setting up the monitor.
Step-by-step guide for connecting cables and powering on the monitor.
Guidance on ergonomic setup and work area arrangement for optimal comfort.
Recommendations for ideal monitor height, distance, and placement to avoid glare.
Detailed explanation of navigating and using the On-Screen Display (OSD) menu.
Solutions for common display, image quality, and power issues.
Step-by-step guide for driver installation on Windows 7 and 10.
General| Color depth | 10 bit |
|---|---|
| Pixel pitch | 0.16 x 0.16 mm |
| Screen shape | Flat |
| Pixel density | 157.35 ppi |
| Response time | 6 ms |
| Backlight type | W-LED |
| Display diagonal | 28 \ |
| Display technology | LED |
| Native aspect ratio | 16:9 |
| Maximum refresh rate | 60 Hz |
| Response time (fast) | 4 ms |
| NTSC coverage (typical) | 99 % |
| Viewable size, vertical | 359.78 mm |
| Contrast ratio (dynamic) | 3000000:1 |
| Contrast ratio (typical) | 1000:1 |
| Display number of colors | 1.07 billion colors |
| Viewable size, horizontal | 631.93 mm |
| Display brightness (typical) | 250 cd/m² |
| Supported graphics resolutions | 3840 x 2160 |
| AC input voltage | 100 - 240 V |
| AC input frequency | 50 - 60 Hz |
| Power consumption (max) | 48 W |
| Power consumption (off) | 0.3 W |
| Power consumption (standby) | - W |
| Power consumption (typical) | 31 W |
| Color name | Raven Black |
| Certification | CCC, TÜV Rheinland Eye Comfort |
| Product color | Black |
| Market positioning | - |
| Tilt angle range | -5 - 22 ° |
| Cable lock slot type | Kensington |
| Number of OSD languages | 8 |
| On Screen Display (OSD) | Yes |
| Panel mounting interface | 100 x 100 mm |
| DisplayPort version | 1.2 |
| VGA (D-Sub) ports quantity | 0 |
| Package depth | 127 mm |
| Package width | 738 mm |
| Package height | 452 mm |
| Package weight | 7500 g |
| Cables included | AC, HDMI |
| HDMI cable length | 1.8 m |
| Sustainability certificates | RoHS, ENERGY STAR |
Weight and Dimensions| Bezel width (side) | 2 mm |
|---|---|
| Depth (with stand) | 219.98 mm |
| Width (with stand) | 636.94 mm |
| Height (with stand) | 450.82 mm |
| Weight (with stand) | 5200 g |
| Bezel width (bottom) | 22.8 mm |
| Depth (without stand) | - mm |
| Weight (without stand) | - g |
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