Инструкция обслуживания Barco MGD 521 M

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  • Barco MGD 521 M - page 1

    Inst allation & User Manual MGD 521 M MGD 521 MKII Medical Greyscale Displays V599326/Rev . 02 June 2003 BarcoView Theodoor Sevenslaan 106 8500 Kortrijk, Belgium Phone: +32(0)56 23 32 44 Fax: +32(0)56 23 33 74 E-mail: sales.medical@barco.com http://www .barcoview .com BarcoView Inc 3059 Premiere Parkway Duluth, Georgia, 30097,USA Phone: +1 678 ...

  • Barco MGD 521 M - page 2

    MGD 521 M - MKII User's Guide 3 © 2003 BARCO nv. All rights reserved. Trademark information TrueGrey, MediCal, BarcoMed, and MeDis are registered trademarks of BARCO NV. Windows NT is a registered trademark of Microsoft Corporation. ...

  • Barco MGD 521 M - page 3

    MGD 521 M - MKII User's Guide 4 ...

  • Barco MGD 521 M - page 4

    MGD 521 M - MKII User's Guide 5 Regulations  This apparatus conforms to: IEC601-1, UL2601-1, cUL2601-1, EN 60601-1  This apparatus is classified as Type B without Applied Part. Usage in Hazardous locations  Class I equipment  Equipment not suitable for use in the presence of a flammable anaesthetic mixture with air or with oxygen o ...

  • Barco MGD 521 M - page 5

    MGD 521 M - MKII User's Guide 6 ...

  • Barco MGD 521 M - page 6

    MGD 521 M - MKII User's Guide 7 CONTENTS 1. Introduction ..................................................................................................... 9 1.1 Overview .................................................................................................. 9 Resolution and bandwidths ............................................ ...

  • Barco MGD 521 M - page 7

    MGD 521 M - MKII User's Guide 8 ...

  • Barco MGD 521 M - page 8

    Introduction 9 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 scientifi ...

  • Barco MGD 521 M - page 9

    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 idle for a certain time, the computer, connecte ...

  • Barco MGD 521 M - page 10

    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 require a technical skill to be performed properly. The ...

  • Barco MGD 521 M - page 11

    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 a strong and stable table or desk if use ...

  • Barco MGD 521 M - page 12

    Installation 13 2.3 Controls and connectors 1 REMOTE OUT REMOTE IN VIDEO HS / CS VS 2 4 5 6 7 8 9 10 11 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 switching the power on/off, and selecting and per ...

  • Barco MGD 521 M - page 13

    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 video signals you want to connect. It must be 50 o ...

  • Barco MGD 521 M - page 14

    Installation 15 b) Connection of data signals The display can be controlled remotely by a computer through the serial data bus. A typical example of this, is the MediCal software that controls the display. MediCal runs on a PC that is connected through the serial data bus. This PC is not necessarily the same computer as the one that produces the vi ...

  • Barco MGD 521 M - page 15

    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 power cord into the rear of the display (connector LIN ...

  • Barco MGD 521 M - page 16

    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 levels.  The best ambient light level, ...

  • Barco MGD 521 M - page 17

    Operation 18 3. OPERATION: USER CONTROLS Important : The best way to adjust and control the display is by using MediCal, which displays the ideal test patterns for correct adjustment. However, in case you do not dispose of MediCal, you can control and adjust the display by means of the built-in On-Screen Display (OSD). 3.1 Switching on / off Power ...

  • Barco MGD 521 M - page 18

    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 degrees before the OSD becomes visible. Contrast - Contr ...

  • Barco MGD 521 M - page 19

    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 appears. 4 Turn the control knob until you have ...

  • Barco MGD 521 M - page 20

    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 V-frequency: 80.00 Hz - Exit Example of Status in ...

  • Barco MGD 521 M - page 21

    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, before the display interrupts the data communication ...

  • Barco MGD 521 M - page 22

    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 - ALC OFF - Orbiter OFF - Power save ON - Display add ...

  • Barco MGD 521 M - page 23

    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 be calibrated in the Adjustments menu (see furthe ...

  • Barco MGD 521 M - page 24

    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 menu, turn the control knob to select Adjustments ...

  • Barco MGD 521 M - page 25

    Advanced 26 Width Horizontal position Height Vertical position Blanking - Blanking left Blanking - Blanking right Blanking - Blanking top ...

  • Barco MGD 521 M - page 26

    Advanced 27 Interlacing - Pre correction In most cases you do not need to change this adjustment. You may need to increase this adjustment only when the connected video and sync signal contains an abnormally big number of equalization pulses before the vertical sync (more than 8 lines), resulting in a phase error (geometry distortion) at the bottom ...

  • Barco MGD 521 M - page 27

    Advanced 28 SH Compensation: SH Position With SH Compensation on, we advise to use the SH Position control instead of the Horizontal Position control in the Geometry menu. Advanced geometry - Horizontal skewing Advanced geometry - Horizontal bowing Advanced geometry - Horizontal trapezium Advanced geometry - Horizontal parabola Advanced geometry - ...

  • Barco MGD 521 M - page 28

    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 & S-correction - Vertical linearity ...

  • Barco MGD 521 M - page 29

    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 - Horizontal skewing right Advanced geometry - Linearity & ...

  • Barco MGD 521 M - page 30

    Advanced 31 Focus Static focus Adjust Static focus to obtain an image as sharp as possible in the center. Focus zone You can adjust the focus in 25 independent zones. Turn the control knob to obtain an image as sharp as possible in the selected zone. Press the control knob to switch to the next zone. ALC (optional) Ambient Light Compensation (ALC) ...

  • Barco MGD 521 M - page 31

    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 function allows you to undo all adjustments y ...

  • Barco MGD 521 M - page 32

    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 glass cleaning solution. Apply (e.g., spray) the s ...

  • Barco MGD 521 M - page 33

    Troubleshooting 34 6. TROUBLESHOOTING There appears no image on the picture tube, the green LED at the front is out  Check if the power cord is properly connected to the power outlet and to the display.  Check if the power button is switched on. There appears no image, the green LED is on The display is switched in Stand-by, manually or by th ...

  • Barco MGD 521 M - page 34

    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 picture tube. Inside the CRT, a so- called electron ...

  • Barco MGD 521 M - page 35

    Background information 36 At last, the imaging board delivers no sync signals at all, and the micro-controller switches off all but one power supplies in the display. Only the micro-controller's own supply keeps on running, resulting in a very low power consumption of 5 W. If you start using the computer again, the imaging board switches on bo ...

  • Barco MGD 521 M - page 36

    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/m2 Resolution: Max. adress. pixels: 2048 Max. adre ...

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