Gebruiksaanwijzing /service van het product MGD 2621 van de fabrikant Barco
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Inst allation & User Manual MGD 2621 P Medical Greyscale Display.
W arning This is a Class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.
MGD 2621 P User's Guide 3 • Read the safety and operating instructions before operating the apparatus. • Retain safety and operating instructions for future reference. • Adhere to all warnings on the apparatus and in the operating instructions manual.
MGD 2621 P User's Guide 4 CONTENTS Introduction ........................................................................................................ 5 Overview ..................................................................................
Introduction 5 Overview INTRODUCTION Resolution and bandwidths The BARCO MGD 2621 P is a high-resolution greyscale portrait display . It s outstanding visual performance, combining a 2 MegaPixel resolution with a very high brightness, makes it ideal for medical imaging and many other medical and scientific applications.
Introduction 6 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, which runs under Microsoft Windows NT , is especially developed to adjust and check BARCO’s medical displays.
Installation 7 • 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.
Installation 8 The display is packed in a box on a pallet. T o unpack: 1. Cut the ribbons around the box by means of a pair of wire-cutters. 2. Lift the box from the pallet. The display remains standing on the pallet. 3. Remove the Accessory box and the upper polystyrene piece.
Installation 9 SENSOR CONTRAST BRIGHTNESS REMOTE OUT REMOTE IN VIDEO HS / CS VS Location of controls and connectors 10 9 8 7 6 5 4 1 2 3 {1} Optical sensor plug {2} Contrast knob {3 } Brightness knob {4 } Remote (RS-232) output {5} Remote (RS-232) input {6} Video input {7} Horizontal / composite sync.
Installation 1 0 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 termination impedance of the display’s video input and the impedance of the imaging board that produces the video signals you want to connect.
Installation 1 1 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 video signals.
Installation 1 2 Import ant 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.
Operation 13 Press the Power button {10} on the rear panel to switch on the display . Note: The display can be switched of f by the automatic power saving system.
Operation 14 Note: When you change the contrast (brightness) control one step at the time (click per click), the picture contrast (brightness) will change although the cursor on the OSD does not move. This is because contrast (brightness) can be adjusted in more than 4000 steps, and the OSD is only 6 inches wide.
Advanced Adjustments 15 ADV ANCED ADJUSTMENTS (FOR SERVICE ST AFF ONL Y) The MediCal software The display is actually designed to be adjusted by means of MediCal. MediCal provides a very user- friendly way to control and adjust the display . Even more, you need MediCal to automatically calibrate the display .
Advanced Adjustments 16 To exit the menu system: 1 T urn the Contrast knob until the Save Changes dialog appears in the OSD: 2 T urn the Brightness knob to toggle between Y es and No. Select Y es to save the changes, select No to exit without saving the changes.
Advanced Adjustments 17 1 T urn the Brightness knob once to enter the Focus menu. The first focus adjustment appears: S tatic Focus. 2 T urn the Brightness knob to adjust static focus. S tatic focus has effect on the complete screen. 3 T urn the Contrast knob to switch to the next focus adjustment.
Advanced Adjustments 18 T urn the Contrast knob to switch to the next menu. This is the display type. This is the display's serial number This is the display's order number . The order number of the internal software. The internal software version.
Advanced Adjustments 19 Miscellaneous T urn the Brightness knob to toggle the Backporch clamping between Off and On. The normal setting is: Off. If Backporch clamping is switched off, clamping is on the sync tip. IMPORT ANT : Improper setting of the Backporch clamping can result in incorrect luminance output.
Advanced Adjustments 20 Menu exit 1 T urn the Brightness knob to enter the Exit menu. The Save Changes dialog appears. 2 T urn the Brightness knob to toggle between Y es and No. Select Y es to save the changes, select No to exit without saving the changes.
Maintenance 21 MAINTENANCE Picture tube The glass panel of the picture tube is handled with a special coating. T ake care not to damage or scratch the coating. Clean the picture tube with a soft woollen or cotton cloth. The cloth should be moist, not wet! Use a watery solution or a mild commercial glass cleaning solution.
T roubleshooting 22 TROUBLESHOOTING There appears no image on the picture tube, the green LED on 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 depressed. • Check if contrast and brightness are not set to 0.
Background information 23 APPENDIX A: BACKGROUND INFORMA TION Clamping Inside the display , the video signal from the video input is connected to the video amplifier . This circuit amplifies the signal, paying special attention to two signal levels: the amplitude and the dc-level.
Background information 24 be thicker in the center . BARCO has developed a special system, called Luminance Uniformity Correction (LUC), that solves this problem. The LUC system enhances the light output at the edges of the CRT , so that the luminance there is the same as in the center .
T echnical specifications 25 Picture tube: Faceplate transmission: +/- 33% Faceplate type: ARC panel Image representation: portrait Phosphor: P45 Light output: Calibrated: 300 cd/m² Peak: 600 cd/m² Resolution: Max.
MGD 2621 P User's Guide 26.
B410030 /Rev . 00 February 2001 Printed in Belgium 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: +1 678 475 8000 Fax: +1 678 475 8100 E-mail: sales.
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