Руководство По Обслуживанию для Cisco Cisco TelePresence MX700

D15331.04 MX700 and MX800 Administrator Guide CE8.2, OCTOBER 2016.

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Cisco TelePresence MX700 and MX800

Administrator Guide

Notes regarding screen technology

Cisco are using professional screens in MX700 and MX800.

These screens have longer lifetime and operating hours than

consumer screens.

MX700 and MX800 use LED edge backlit LCD panels with

Vertical Alignment technology. This allows for high contrast

ratios and fast response times. The nature of all LCD panels is

that the contrast ratio drops rapidly with an increasing viewing

angle (both horizontally and vertically). Color coordinates will

also change with increased viewing angle resulting in some

color shift. LCD panels may therefore appear to have different

shades when comparing images viewed perpendicular and at

an angle to the screen.

MX700 and MX800 screens are individually color calibrated

during manufacturing using spectrometers. This ensures

that all screens shipped from the manufacturing site are

equal with respect to color reproduction, when judged on

axis. The calibration process has some tolerances, but this

is considered to be hard, if not impossible, to judge with the

naked eye. A small change in the viewing angle will to a larger

extent affect the perceived color differences.

Over time the screen’s LED backlights will drift. This is valid

for all LCD panels with LED backlight. Luminance will decay

resulting in darker image over time. For the LCD panels in

MX700 and MX800, the luminance will be halved after 50000

operating hours.

Introduction

Configuration

Peripherals

Maintenance

System settings

Appendices

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Appendices