Barco MGD 521 MKII - Manuals

Introduction 10 adjust and check BARCO’s medical displays.A lot of adjustments can also be done on the monitor itself, by means of an extensive on-screen menu system, accessible from the rear panel controls. Power saving system The MGD 521 displays are equipped with a power saving system. When left ...

Installation 11 1.3 About the manuals This guide is meant for people who want to install and use the MGD 521 displays, as well as people who need to install and adjust the displays. Chapter 4, Adjustments, is meant for this second category only, because it describes actions and procedures that requi...

Installation 12 2. INSTALLATION 2.1 Precautions • Keep your original packaging. It is designed for this display and is the ideal protection during transport. • Do not lift the display all by yourself to avoid injury.• Avoid reflections in the picture tube to reduce eye strain.• Place the display on ...

Installation 13 2.3 Controls and connectors 1 REMOTE OUT REMOTE IN VIDEO HS / CS VS 2 4 5 6 7 8 91011 3 {1} Optical sensor plug {2} Ambient Light Compensation (ALC) sensor (optional) {3} Green power LED {4} Control knob, combination of a push button and a turning knob. The control knob is used for s...

Installation 14 2.4 Signal connection a) Connection of video signals The connected equipment must comply to all relevant safety demands. Important: The use of low-quality video cables can distort the video signal and influence diagnosis.1. Check the impedance of the imaging board that produces the v...

Installation 16 d) Connection of power 1. Power cord: Utilize a UL-listed detachable power cord, 3-wire, type SJ or equivalent, 18 AWG min., rated 300 V min., provided with a hospital-grade type plug 5-15P configuration for 120V application, or 6-15P for 240V application. 2. Plug one end of the powe...

Installation 17 Important considerations • The best environment for diagnostic imaging is one with controlled and dimmed ambient light. The human eye's sensitivity depends on the ambient light strength. It is most sensitive to small contrast changes (or subtle image details) at limited ambient light...

Operation 19 3.2 Contrast and brightness control Contrast and brightness can be controlled through the OSD menus. To activate the OSD Turn the control knob {4} from left to right or from right to left. As a result, the OSD main menu appears. Note: The control knob should turn over at least 30 degree...

Operation 20 To control contrast manually 1 Turn the control knob to select Contrast in the OSD main menu. 2 Press the control knob shortly. The contrast control menu appears.3 In the contrast control menu, select Manual contrast adjustment and press the control knob shortly. The contrast scroll bar...

Operation 21 STATUS INFORMATION Display Name: MGD 521MKII Serial Number: 5114147 Mode Name: New mode Mode H-frequency: 175.32 kHz Mode V-frequency: 79.94 Hz Software Version: V 1.01 Run time: 50 hours White level: 300 cd/m2 Activity timeout 30s SH compensation OFF Actual H-frequency:125.30kHz Actual...

Operation 22 Software Version: The internal software version. Run time: The total operating time since production, including burn-in time. White level: The display’s white level or light output after calibration, in calibrated position. Activity timeout : This is the time, expressed in seconds, befo...

Advanced 23 4. ADVANCED SETTINGS AND ADJUSTMENTS (FOR SERVICE STAFF ONLY) Important: The functions and controls described in this chapter can have a serious impact on the performance of the display. They should be touched by trained service staff only! 4.1 Settings SETTINGS INFORMATION - LUC OFF - A...

Advanced 24 Explanation of the Settings menu items LUC: LUC is short for Luminance Uniformity Control. When switched on, the internal waveform processor will modulate the gain of the video amplifier so that the luminance is equal all over the screen (within a tolerance of +/- 5%).The LUC system can ...

Advanced 25 ADJUSTMENTS - Geometry - Focus - ALC - Luminance uniformity - Factory reset - Exit Adjustments menu 4.2 Adjustments a) How to make the adjustments 1 Turn the control knob at the rear from left to right or from right to left to activate the On-Screen Display (OSD) main menu. 2 In the main...

Advanced 29 Advanced geometry - Corner top right Advanced geometry - Corner bottom left Advanced geometry - Corner bottom right Advanced geometry - Linearity & S-correction - Horizontal linearity Advanced geometry - Linearity & S-correction - Horizontal S-corr Advanced geometry - Linearity &...

Advanced 30 Advanced geometry - Advanced bowing & skewing - Horizontal bowing left Advanced geometry - Advanced bowing & skewing - Horizontal bowing right Advanced geometry - Advanced bowing & skewing - Horizontal skewing left Advanced geometry - Advanced bowing & skewing - Horizonta...

Advanced 32 Luminance uniformity This menu allows you to calibrate the display, including the Luminance Uniformity circuit.Proceed as follows:1 Connect the X-Rite DTP92 sensor and apply the black shield (see chapter "Installation"). 2 Follow the instructions on the screen. Factory reset This...

Maintenance 33 5. MAINTENANCE Picture tube The glass panel of the picture tube is handled with a special coating. Take care not to damage or scratch the coating.Clean the picture tube with a soft woolen or cotton cloth.The cloth should be moist, not wet!Use a watery solution or a mild commercial gla...

Background information 35 APPENDIX A: BACKGROUND INFORMATION Luminance Uniformity Correction A characteristic (or limitation) of every picture tube (CRT) is that the luminance decreases towards the edge of the screen surface. The decrease is normally 20 to 30 %.This is caused by the shape of the pic...

Technical specifications 37 Picture tube: Faceplate transmission: +/- 32% Faceplate type: ARC panel Image representation: portrait Phosphor: P45 (standard) or P104 (option for MGD 521 MKII only) Light output: (P45 phosphor) MGD 521: Calibrated: 300 Cd/m2 MGD 521M: Calibrated: 400 Cd/m2 Peak: 600 Cd/...