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Chapter 2.       

 2-

8

 

Understanding power management

Power management is invoked when the computer recognizes that you have not used your 

mouse or keyboard for a user-definable period. There are several states as described in the 

table below. 
For optimal performance, switch off your monitor at the end of each working day, or whenever 

you expect to leave it unused for long periods during the day.
   

 

Table 2-3. 

Power indicator

State

Power Indicator

Screen

Restoring 

Operation

Compliance

On

White

Normal

Standby/Suspend

Amber

Blank

Press a key or 

move the mouse

There may be a 

slight delay before 

the image 

reappears.

Note: 

Standby 

also occurs if there 

is no image output 

to the monitor.

ENERGY STAR

 Off

Off

Blank

Press the power 

button

There may be a 

slight delay before 

the image 

reappears.

ENERGY STAR

 

Power Management Modes

Horizontal 

Vertical 

Power 

VESA Modes

Video

Power Consumption

Sync

Sync

Indicator

Normal operation

Active

Active

Active

White

48

 W (maximum)*

31

 W (typical) 

Active-off mode

Inactive

Inactive

Off

Amber

Less than 

0

.

3

W

Switch off

-

-

-

Off

Less than 

0

.

3

W

Energy Star

Power Consumption

P

ON

24

.

28

 W

E

TEC

75.41 

kWh

* Maximum power consumption with max luminance. 

This document is informational only and reflects laboratory performance. Your product may 
perform differently, depending on the software, components and peripherals you ordered and 
shall have no obligation to update such information. Accordingly, the customer should not rely 
upon this information in making decisions about electrical tolerances or otherwise. No 
warranty as to accuracy or completeness is expressed or implied.

Содержание L28u-30

Страница 1: ...Lenovo L28u 30 User Guide ...

Страница 2: ...commercial items as defined by 48 C F R 2 101 with limited and restricted rights to use reproduction and disclosure LIMITED AND RESTRICTED RIGHTS NOTICE If products data computer software or services are delivered pursuant a General Services Administration GSA contract use reproduction or disclosure is subject to restrictions set forth in Contract No GS 35F 05925 Product number 65FA G C2 WW ...

Страница 3: ...ct access controls 2 3 Using the On Screen Display OSD controls 2 4 Selecting a supported display mode 2 7 Understanding power management 2 8 Power Management Modes 2 8 Caring for your monitor 2 9 Detaching the monitor base and stand 2 9 Wall Mounting Optional 2 9 Chapter 3 Reference information 3 1 Monitor specifications 3 1 Troubleshooting 3 3 Manually installing the monitor driver 3 5 Installin...

Страница 4: ...t will be attached must also be connected to properly wired and grounded power outlets To isolate the monitor from the electrical supply you must remove the plug from the power outlet The power outlet should be easily accessible To take special precautions to avoid the introduction of hazards when operating installing servicing transporting or storing equipment the necessary instructions shall be ...

Страница 5: ... instructions for the user For quick instruction overview please see the Setup Poster for brief information Shipping contents The product package should include the following items Information Flyer Lenovo Limited Warranty Booklet Flat Panel Monitor Power Cord HDMI Cable Base Stand HDMI ...

Страница 6: ...e screen area The screen area is glass and can be damaged by rough handling or excessive pressure 1 Place your monitor with the screen face down on a soft flat surface 2 Align the stand assembly bracket to the monitor 3 Insert the base towards monitor until it locks in place Note To install a VESA mount please see on page 2 9 ...

Страница 7: ...verview This section will provide information on adjusting monitor positions setting user controls and using the cable lock slot Types of adjustments Tilt Please see the illustration below for an example of the tilt range 22 ...

Страница 8: ...d controls on the panel frame are accesses to various functions For information on how to utilize these keypad controls please see on page 2 3 Cable lock slot Your monitor is equipped with a cable lock slot located on the rear of your monitor ...

Страница 9: ...before carrying out this procedure 1 Power off your computer and all attached devices then unplug the computer power cord 2 Connect the cables according to below icon indication 3 For computer in HDMI connecting Note Lenovo recommends that customers who require to use the HDMI input on their monitor purchase the Lenovo HDMI to HDMI cable OB47070 www lenovo com support monitoraccessories HDMI HDMI ...

Страница 10: ...or to transfer audio source from HDMI or DP Note The audio output in HDMI or DP mode Warning note Excessive sound pressure from earphones and headphones can cause hearing loss Adjustment of the equalizer to maximum increases the earphones and headphones output voltage and therefore the sound pressure level ...

Страница 11: ... relevant national installation and or equipment regulations shall be considered A certified power supply cord not lighter than ordinary polyvinyl chloride flexible cord according to IEC 60227 designation H05VV F 3G 0 75mm2 or H05VVH2 F2 3G 0 75mm2 shall be used Alternative a flexible cord be of synthetic rubber according to IEC 60245 designation H05RR F 3G 0 75mm2 shall be used 7 Connect the cabl...

Страница 12: ...r 9 When you install the monitor driver download the driver that corresponds to your monitor model from the Lenovo website http support lenovo com docs L28u_30 Refer to the Manually installing the monitor driver on page 3 5 section to install the driver ...

Страница 13: ...djust your computer monitor for comfortable viewing by considering the following items Recommended viewing distance between the eye and the monitor screen is 1 5 x the diagonal of the screen Solutions in meeting this required distance in cramped office situations include pulling desk away from wall or divider to make room for monitor using flat panel or compact displays placing the monitor in the ...

Страница 14: ...mize the position and orientation of your equipment by following the tips outlined in Arranging your work area on page 2 1 so you can maintain a comfortable and productive posture Also be sure to use the adjustment capabilities of your computer components and office furniture to best suit your preferences now and as your preferences change over time Minor changes in posture can help avoid discomfo...

Страница 15: ...s adjustment Down browsing key Press to move to next item 4 Menu To access OSD menu Press to confirm selection Press and hold for 10 seconds will lock menu un lock menu Enter Press to enter next level on main menu sub menu status or enter previous level on adjustment bar Note The L28u 30 uses Natural Low Blue Light Technology that reduces harmful blue light to protect human eyes while maintaining ...

Страница 16: ... program for consumer electronics led by the U S government It was launched in 1992 by EPA and DOE to reduce energy consumption and greenhouse gas emissions Energy Star logo is a symbol of energy conservation and environmental protection It improves the concept of energy efficiency of consumers and manufacturers and effectively guides the market The regulation of Energy Star improves energy effici...

Страница 17: ... monitor can accept video signals through two different connectors Select DP HDMI among OSD Controls when you use DP HDMI connector Selects type of scaled image Original AR same aspect ratio with input signal Full Screen expand image to full screen All input ports Preset mode Bluish Neutral Reddish sRGB Red Increases or decreases the saturation of Red in the image Green Increases or decreases the ...

Страница 18: ...set monitor to the original settings All input ports All input ports Changes languages of menu Note The language chosen only affects the language of the OSD It has no effect on any software running on the computer Adjusts menu location Menu Horizontal Changes the horizontal position of the OSD Menu Vertical Changes the vertical position of the OSD Changes Transparency of menu Only for DP input DP ...

Страница 19: ... inherently flicker free Note If your system has previously been used with a CRT monitor and is currently configured to a display mode outside the range of this monitor you may need to reattach the CRT monitor temporarily until you have re configured the system preferably to 3840 x 2160 at 60 Hz which is a common display mode The display modes shown below have been optimized at the factory Table 2...

Страница 20: ... Off Blank Press the power button There may be a slight delay before the image reappears ENERGY STAR Power Management Modes Horizontal Vertical Power VESA Modes Video Power Consumption Sync Sync Indicator Normal operation Active Active Active White 48 W maximum 31 W typical Active off mode Inactive Inactive Off Amber Less than 0 3W Switch off Off Less than 0 3W Energy Star Power Consumption PON 24...

Страница 21: ...ay harm the coating of the screen area Do Lightly dampen a soft cloth with water and use this to gently wipe the covers and the screen Remove grease or finger marks with a damp cloth and a little mild detergent Detaching the monitor base and stand Step 1 Place the monitor on a soft and flat surface Step 2 Remove the screws from base before detaching base and stand from the monitor Wall Mounting Op...

Страница 22: ...p 4 Attach the mounting bracket from the VESA compatible wall mounting kit 100mm x100mm distance the type of VESA mounting screw is M4 x 10 mm Step 5 Attach the LCD display to the wall and follow the instructions in the wall mounting kit For use only with UL Listed Wall Mount Bracket with minimum weight load 13 7 kg VESA hole ...

Страница 23: ...in Stand Tilt Range 5 22 VESA mount Supported 100 mm x 100 mm 3 94 in x 3 94 in Image Viewable image size Maximum height Maximum width Pixel pitch 711 40 mm 28 in 359 78 mm 14 16 in 631 928 mm 24 87 in 0 16 mm 0 0063 in Power input Supply voltage 100 240V AC Max supply current 1 5A Power consumption Normal operation 48W max Note Power 31W typical consumption figures are for the monitor and Standby...

Страница 24: ...y DP VESA TMDS Panel Link 3840 pixels max 2160 lines max 576 MHz Communications VESA DDC CI Supported display modes Horizontal frequency Vertical frequency 30 KHz 160 KHz 23 Hz 76 Hz Native Resolution 3840 x 2160 at 60 Hz Temperature Operating Storage Shipping 0 to 45 C 32 to 113 F 20 to 60 C 4 to 140 F 20 to 60 C 4 to 140 F Humidity Operating Storage Shipping 10 to 80 non condensing 5 to 95 non c...

Страница 25: ... cable is not connected with the monitor or system completely Be sure the signal cable is firmly plugged into the system and monitor Connecting and turning on your monitor on page 1 5 The color settings may be incorrect Select another color setting from the OSD menu Adjusting your monitor image on page 2 3 The automatic image setup function was not performed Perform automatic image setup Adjusting...

Страница 26: ...ter Appendix A Service and Support on page A 1 Fuzzy lines in text or a blurry image Horizontal or vertical lines through the image Image setup has not been optimized Your system Display Properties setting have not been optimized Adjust the resolution settings on your system to match the native resolution for this monitor 3840 x 2160 at 60 Hz Adjusting your monitor image on page 2 3 Perform automa...

Страница 27: ...d Sound icon and then click the Display icon 6 Click the Change the display settings tab 7 Click the Advanced Settings icon 8 Click the Monitor tab 9 Click the Properties button 10 Click the Driver tab 11 Click Update Driver then click Browse the computer to find the driver program 12 Select Pick from the list of device driver program on the computer 13 Click the Hard Disk button By clicking the B...

Страница 28: ...e computer to find the driver program 12 Select Pick from the list of device driver program on the computer 13 Click the Hard Disk button By clicking the Browse button browse and point to the following path X Monitor Drivers Windows 10 where X indicates Āthe folder in which the downloaded driver is locatedā such as a desktop 14 Select the Ālen L28u 30 infā file and click the Open button Click the ...

Страница 29: ...lation and configuration support through the Customer Support Center will be available until 90 days after the option has been withdrawn from marketing After that time the support is cancelled or made available for a fee at Lenovo s discretion Additional support is also available for a nominal fee Before contacting a Lenovo technical support representative please have the following information ava...

Страница 30: ...n new editions of the publication Lenovo may make improvements and or changes in the product s and or the program s described in this publication at any time without notice The products described in this document are not intended for use in implantation or other life support applications where malfunction may result in injury or death to persons The information contained in this document does not ...

Страница 31: ...ecting reuse and recycling of disused computers and monitors For details visit the Lenovo Web site at http www lenovo com recycling japan Pursuant to the Law for Promotion of Effective Utilization of Resources the collecting and recycling of home used computers and monitors by the manufacturer was begun on October 1 2003 This service is provided free of charge for home used computers sold after Oc...

Страница 32: ...Appendix B B 3 Power cords and power adapters Use only the power cords and power adapters supplied by the product manufacturer Do not use the ac power cord for other devices ...

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