NEC 4620, 4020 user manual Image Sticking of LCD Panel, Recommendations, English-30

Page 32

NOTE 2: IMAGE PERSISTENCE

Please be aware that LCD Technology may experience a phenomena known as Image Persistence. Image Persistence occurs when a residual or ÒghostÓ image of a previous image remains visible on the screen. Unlike CRT monitors, LCD monitorsÕ image persistence is not permanent, but constant images being displayed for a long period of time should be avoided.

To alleviate image persistence, turn off the monitor for as long as the previous image was displayed. For example, if an image was on the monitor for one hour and a residual image remains, the monitor should be turned off for one hour to erase the image.

As with all personal display devices, NEC DISPLAY SOLUTIONS recommends displaying moving images and using a moving screen saver at regular intervals whenever the screen is idle or turning off the monitor when not in use.

Please set ÒSCREEN SAVERÓ, ÒDATE &TIMEÓ and ÒSCHEDULE SETTINGSÓ functions to further reduce the risk of Image persistence.

For long life use of Public Display

<Image Sticking of LCD Panel >

When LCD panel is operated continuously for long hours, a trace of electric charge remains near the electrode inside LCD, and residual or ÒghostÓ image of previous image may be observed. (Image Persistence)

Image Persistence is not permanent, but when fixed image is displayed for long period, ionic impurities inside LCD are accumulated along the displayed image, and it is observed permanently. (Image Sticking)

<Recommendations >

For preventing the fast transition to Image Sticking, and for longer life usage of LCD, following are recommended.

1.Fixed image should not be displayed for long period, and changed to another images with short cycle.

2.When no use, please turn off the monitor by remote control, or use Power Management Function of monitor or use Schedule Function of monitor.

3.Reducing the environmental temperature is effective for long life use.

When Protection board (glass, acryl) is installed over the LCD surface, enclosed into the box / wall, or stack the monitor, please utilize the temperature sensors inside monitor.

To reduce the environmental temperature, the monitor should be set Low Brightness or Cooling Fan ÒONÓ by using Screen sever Function.

4.Please use ÒScreen Saver ModeÓ of monitor.

Remote Control ID Function

REMOTE CONTROL ID

The remote control included with the display can be used to control up to 26 individual MultiSync monitors using what is called the REMOTE CONTROL ID mode. The REMOTE CONTROL ID mode works in conjunction with the Monitor ID, allowing control of up to 26 individual MultiSync monitors. For example: if there are many monitors being used in the same area, a remote control in normal mode would send signals to every monitor at the same time Figure 1. Using the remote in REMOTE CONTROL ID mode will only operate one specific monitor within the group Figure 2.

TO SET REMOTE CONTROL ID

While holding down the REMOTE ID SET button on the remote control, use the KEYPAD to input the Monitor ID (1-26) of the display to be controlled via remote. The remote can then be used to operate the monitor having that specific Monitor ID number.

When 0 is selected or when the remote control is in normal mode, all monitors will be operated.

 

Monitor ID:1

 

Monitor ID:2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Remote works

Remote works

Figure 1

Remote in

Normal mode or the REMOTE ID is set to 0

Monitor ID:3

Remote works

TO SET REMOTE CONTROL ID

ID Mode - To enter ID Mode press the REMOTE ID SET button and hold down for 2 seconds.

Normal Mode - To return to Normal Mode press the REMOTE ID RESET button and hold down for 2 seconds.

In order for this feature to work properly, the display must be assigned a Monitor ID number. The Monitor ID number can be assigned under the MULTI DISPLAY menu in the OSD (See page 27).

Press the ÒDISPLAYÓ button on the remote to bring up the Information OSD. The Information OSD shows the monitor ID number and other information such as signal type, zoom method, etc.

 

Monitor ID:1

 

Monitor ID:2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Remote does

Remote does

 

 

not work

 

not work

Figure 2

Remote set up to

use REMOTE

ID:3

Monitor ID:3

Remote works

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Contents MultiSync LCD4020 MultiSync LCD4620 Index TV TunerEnglish-1 Canadian Department of Communications Compliance StatementFCC Information Important Information DeclarationDisposing of your old NEC product Declaration of the ManufacturerSafety Precautions, Maintenance & Recommended Use Contents Parts Name and Functions Control PanelTerminal Panel Wireless Remote Control Operating Range for the Remote Control Handling the remote controlInstallation Attaching Mounting Accessories Attach Mounting AccessoriesInstalling and removing stand Ventilation RequirementsPrevent Tipping English-11Setup Determine the installation locationInstall the remote control batteries Connect the supplied power cordSwitch on the power of all the attached external equipment Adjust the soundAdjust the screen See pages 24 Adjust the image SeeConnecting a Personal Computer ConnectionsBefore making connections Connect the LCD Monitor to a Personal ComputerEnglish-15 Connecting to a Macintosh ComputerConnect the LCD Monitor to Macintosh English-16 Connecting with Digital Interface EquipmentConnect the LCD Monitor to a Computer with a Digital Output Connecting a DVD Player with component out Connect the LCD Monitor to a DVD PlayerEnglish-17 RCAConnecting a DVD Player with Hdmi out Connecting a DVD Player with Scart outEnglish-18 ScartEnglish-19 Connecting to a Stereo AmplifierConnect the LCD Monitor to a Stereo Amplifier English-20 Connecting to a TVPrecautions when connecting the antenna English-21 Power on and OFF ModesBasic Operation Power Indicator Using Power ManagementPicture Mode Information OSDOSD On-Screen-Display Controls English-23English-24 English-25 English-26 English-27 English-28 TV Tuner Scan Mode English-29English-30 Image Sticking of LCD PanelRecommendations English-31 Connect PC and LCD4020/LCD4620Connection English-32English-33 Features English-34Troubleshooting English-36 Specifications LCD4020Product Specifications Specifications LCD4620 English-37Pin Assignment English-38Weee Mark European Directive 2002/96/EC Manufacturer’s Recycling and Energy InformationEnergy Saving

4020, 4620 specifications

The NEC 4620 and NEC 4020 are significant models in the realm of telecommunications, particularly noted for their sophistication and capabilities in network management and communication systems. These systems have been crucial in advancing telecommunications infrastructure for businesses and organizations, delivering efficient solutions to manage calling patterns and other communication functions.

The NEC 4620 is renowned for its robust performance and versatility. Designed for small to medium-sized enterprises, this model integrates voice and data communication seamlessly. One of its main features is the support for both legacy telephone systems and modern VoIP technology, allowing businesses to transition gradually while ensuring no disruption in service. It also supports a wide range of telephony applications, enhancing its functionality and usability across various business environments.

A standout characteristic of the NEC 4620 is its scalability. It can be easily expanded to accommodate the growing needs of an organization, providing investment protection as businesses evolve. The system also boasts advanced call handling features, including call forwarding, voicemail, and conferencing capabilities, ensuring efficient communication within and outside the organization.

On the other hand, the NEC 4020 targets larger enterprises with more demanding communication needs. It offers higher capacity and more extensive integration options. This model is built with advanced technologies that support unified communications, allowing seamless collaboration among team members. One of its key technological advancements is its ability to integrate with various third-party applications, providing organizations with customized solutions that cater to their unique workflow and operational requirements.

Both the NEC 4620 and 4020 embrace the concept of unified communications, ensuring that voice, video, and data are effectively converged. This capability not only enhances productivity but also promotes better customer service through improved response times and communication transparency. Additionally, these systems are equipped with robust security features, ensuring that sensitive communication data remains protected from unauthorized access.

With their state-of-the-art technologies and features, the NEC 4620 and 4020 represent a significant investment in the future of organizational communication. As businesses increasingly rely on advanced telecommunications systems to drive growth and efficiency, these models stand out as premier solutions that empower organizations to navigate the complexities of modern communication effectively.
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