Barco MGD 521 MKII user manual Introduction, Overview

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1. INTRODUCTION

1.1 Overview

Resolution and bandwidths

The BARCO MGD 521 M and MGD 521 MKII displays are ultra-high resolution, grayscale portrait displays. Their outstanding visual performance, combining a 5 MegaPixel resolution with a very high brightness, makes them ideal for diagnostic imaging and many other medical and scientific applications.

The displays are compatible with any AC power system worldwide and automatically synchronise to a wide range of sync frequencies. their high-speed video amplifiers support pixel clocks up to 500 MHz (MGD 521 M: 550 MHz).

The memory system

The internal memory system can contain the adjustments for 16 different scanning formats, the so-called scanning modes. Each scanning format is characterized by its sync signals. The display’s internal micro controller continuously samples the connected sync signals and compares them to the scanning modes already stored in the memory. If the connected signal has already been stored, the micro controller adapts the image to the corresponding adjustment values in the memory, and further adjustments are unnecessary.

Image conformity and consistency

Image conformity and consistency are the keywords. In our factory, the MGD 521 displays are perfectly adjusted and calibrated before they are shipped to the customer. Internal circuits, like the TrueGrey® and Automatic White Stability (AWS) systems, ensure display consistency over time.

Conformity with the original image quality is guaranteed by the automatic calibration, which can be done by means of an optical sensor, connected to the Sensor connector on the display. The sensor is not supplied with the display.

Calibration and adjustments

The conformity calibration, as well as the complete adjustment of the display, can be performed by means of the remote, user-friendly MediCal® software package. MediCal is especially developed to

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Contents MGD 521 Mkii V599326/Rev JuneTrademark information MGD 521 M Mkii Users Guide Safety Instructions MGD 521 M Mkii Users Guide Contents MGD 521 M Mkii Users Guide Introduction OverviewPower saving system Versions and optionsAbout the manuals Package contents InstallationPrecautions Controls and connectors Signal connection Connection of video signalsConnection of data signals Connection of optical sensorConnection of power Positioning the displayImportant considerations Switching on / off Power on/offAutomatic power saving system Dpms Operation User ControlsTo put contrast in calibrated position Contrast and brightness controlTo activate the OSD To control brightness manually To control contrast manuallyTo put brightness in calibrated position Explanation of the Status information menu items Viewing Status informationTo view the status information Other adjustments Activity timeoutTo change the settings Advanced Settings and Adjustments For Service Staff onlySettings Explanation of the Settings menu items Saving the settingsAdjustments How to make the adjustmentsDescription of the adjustments Geometry RotationAdvanced Interlacing Pre correction Interlacing Post correctionSH Compensation optional SH Compensation SH Compensation ON/OFFSH Compensation SH Position Advanced Advanced To adjust the ALC system, proceed as follows Focus Static focusFocus zone ALC optionalFactory reset How to save changes Proceed as followsLuminance uniformity What happens upon saving?Cabinet MaintenancePicture tube Troubleshooting There appears no image, the green LED is onAppendix a Background Information Luminance Uniformity CorrectionPage Appendix B Technical Specifications Picture tube