Instruction/ maintenance manual of the product PA272W-BK-SV NEC
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V ersion 1.1.04 User’ s Guide.
2 | SP EC TR A VI E W I I - US ER ’S G UI DE Software Updates and Feedback Occasionally updates and enhancements to the SpectraV iew software will be made available. V isit the SpectraView II section of the NEC DISPLA Y SOLUTIONS Internet web site to check for availability .
3 | SP EC TR A VI E W I I - US ER ’S G UI DE HARDW ARE LIMITED W ARRANTY NEC DISPLA Y SOLUTIONS warrants the SpectraV iew II Hardware (hereinafter “Product” or “Products”) to be free from de.
Cont ents Precautions: . . . . . . . . . . . . . . . . 6 Supported Display Monitors . . . . . . . . . . . 7 System Requirements . . . . . . . . . . . . . 8 1 Introduction to SpectraView II 9 Overview . . . . . . . . . . . . . . . . . . 9 Main Features and benets .
6 Frequently Asked Questions 41 Calibration . . . . . . . . . . . . . . . . . 41 7 T roubleshooting 43 Installation and Setup . . . . . . . . . . . . .
6 | SP EC TR A VI E W I I - US ER ’S G UI DE Pr ecautions: The LCD display monitor screen is fragile and can be easily damaged if force is applied. Never use suction cups to attach a color sensor to the display . Always use the supplied cable or sling and counterweight to gently rest the color sensor on the face of the display .
7 | SP EC TR A VI E W I I - US ER ’S G UI DE Suppor ted Display Monitors SpectraView II supports the following NEC display monitor models: LCD1980SXi – 19” LCD monitor LCD1980FXi – 19” LCD m.
8 | SP EC TR A VI E W I I - US ER ’S G UI DE Syst em Requiremen ts SpectraView has the following system requirements: Mac OS ÿ Microsoft Windows Operating System Apple Mac OS X v10.3.9 or higher . Mac OS 10.5.2 or higher required for some Mac models.
9 | SP EC TR A VI E W I I - US ER ’S G UI DE 1 I ntr oduc tion t o Spec traV iew II Over view Designed for professionals with color critical applications, SpectraV iew II combines the award winning NEC display monitor technology with a color measurement sensor and sophisticated software.
10 | SP EC TR A VI EW II - U SE R’ S G UI DE calibration settings and status of displays on a LAN. This feature is particularly useful for large installations where central monitoring and asset management is needed.
11 | SP EC TR A VI EW II - U SE R’ S G UI DE 2 Dialogs , Settings and M enus Main Spec traV iew II window The SpectraV iew II window shows the current settings and status of the display calibration. All of the features of SpectraView are accessed from this window and the menus.
12 | SP EC TR A VI EW II - U SE R’ S G UI DE T arget Settings The T arget Settings group shows the current calibration T arget parameters for the currently selected display monitor . The T arget Settings can be modied, saved and loaded using the Edit, Open and Save buttons.
13 | SP EC TR A VI EW II - U SE R’ S G UI DE This Display Conguration dialog is accessed either from the Edit menu, or by clicking on the Display: Congure button in the main SpectraView window .
14 | SP EC TR A VI EW II - U SE R’ S G UI DE E dit Calibra tion T arget C ongura tion dialog The Edit Edit Calibration T arget dialog is accessed by clicking the Edit Target button on the main SpectraV iew II window , or by selecting T arget from the Edit menu.
15 | SP EC TR A VI EW II - U SE R’ S G UI DE Use Scale Factor - The DICOM response curve shape is based on the measured black level and Intensity . If the black level or Intensity of the display changes, then the shape of the DICOM response curve also changes.
16 | SP EC TR A VI EW II - U SE R’ S G UI DE C ustom Gamma C ur ve dialog The Custom Gamma Curve dialog is accessed by clicking the Edit.. button in the Gamma Curve section of the Edit Calibration T arget dialog. Advanced response curves can be selected from presets or custom curves can be created by importing a table of values.
17 | SP EC TR A VI EW II - U SE R’ S G UI DE C ustom White P oint dialog The Custom White Point dialog is accessed by clicking the Edit.. button in the White Point section of the Edit Calibration T arget dialog.
18 | SP EC TR A VI EW II - U SE R’ S G UI DE Pr efer ences dialog Pr efer ences dialog - C alibra tion Sensor tab Sensor T ype - selects the model of calibration sensor to use, and shows the current model being used. Auto-Detect - attempts to detect the selected model of calibration sensor .
Calibration and Prole Steps - selects the number of measurement steps to take when calibrating and proling the display . A larger number of steps will generally result in a more accurate grayscale calibration, but will increase the calibration time.
Pr efer ences dialog - IC C P role tab 20 | SP EC TR A VI EW II - U SE R’ S G UI DE Generate ICC Prole after calibration - selecting this will automatically generate an ICC/ColorSync monitor prole after the display is calibrated. This option should be checked for most applications.
Pr efer ences dialog - In ter face tab Options are: Automatic - the optimal setting based on the color sensor model and the display monitor type is automatically used.
Pr efer ences dialog - Display tab Lock OSD (On Screen Display) controls when calibrated - selects if the monitor’s On Screen Display control buttons are locked when the monitor is calibrated. Locking the controls can be useful to prevent accidental or unauthorized adjustment of the monitor once it is calibrated.
23 | SP EC TR A VI EW II - U SE R’ S G UI DE The Information window is accessed from the T ools menu. It will also be automatically displayed after a display calibration is completed. Information windo w Note: The graphs shown in the Information window can be panned, zoomed and scaled.
24 | SP EC TR A VI EW II - U SE R’ S G UI DE Primary Colors Red, Green and Blue CIE x,y - shows the measured color coordinates of the display’s primary colors. These values represent the color gamut of the display . The source of the color measurements will depend on the Primary Colors Chromaticity Source setting in the Preferences dialog.
25 | SP EC TR A VI EW II - U SE R’ S G UI DE Information windo w - C olor Gamut tab The Color Gamut tab graphically illustrates the color gamut of the display for comparison purposes as a 2D representation of the 3D color gamut volume. The display’s color gamut can be compared to the color gamut of several popular color spaces.
26 | SP EC TR A VI EW II - U SE R’ S G UI DE Information windo w - C ur ves tab The Curves tab graphically illustrates the various tone response and correction curves measured and generated during the calibration process. Show Curve T ype T arget - illustrates the target tonal response curve of the currently selected T arget.
27 | SP EC TR A VI EW II - U SE R’ S G UI DE Information windo w - C olor T racking tab The Color Tracking tab shows graphically how well the grayscale (colors from black to white) of the display is conforming to the currently selected T arget.
28 | SP EC TR A VI EW II - U SE R’ S G UI DE Information windo w - DIC OM C onformance tab The DICOM Conformance tab shows graphically and numerically how well the calibrated display conforms to the ideal DICOM (Digital Imaging and Communications in Medicine) response when a DICOM T arget curve of is used.
29 | SP EC TR A VI EW II - U SE R’ S G UI DE Contrast Response Max error - shows the highest percentage error deviation from the Barten Model curve, as well as the JND Index of the highest error point. Show Barten Model - shows the Barten Model curve on the graph.
30 | SP EC TR A VI EW II - U SE R’ S G UI DE C olorimeter windo w The Colorimeter tool allows measurements of colors displayed on the screen to be taken with the calibration sensor , and is accessed from the Tools menu. The measurement results are displayed in a variety of useful formats.
31 | SP EC TR A VI EW II - U SE R’ S G UI DE Ambient Ligh t Measuremen t window The Ambient Light Measurement tool allows measurements to be taken of the ambient light of the viewing environment around the display monitor . This feature is only available when using a supported color sensor .
32 | SP EC TR A VI EW II - U SE R’ S G UI DE Monitor Settings window The Monitor Settings window provides access to some of the display monitor control settings, if supported by the display . The Power LED Indicator controls can be used to change the color of the LED, and also adjust the brightness.
33 | SP EC TR A VI EW II - U SE R’ S G UI DE Menus File menu Open T arget... - opens a T arget le. This is the same as clicking the T arget Settings: Open button. Save T arget As... - saves the current T arget Settings to a le. This is the same as clicking the T arget Settings: Save button.
34 | SP EC TR A VI EW II - U SE R’ S G UI DE 3 Calibration O v er view Intr oduc tion to displa y monitor calibra tion Computer display monitors display images by giving off light from the screen.
35 | SP EC TR A VI EW II - U SE R’ S G UI DE SpectraView includes several industry standard targets for a variety of applications: T arget Name Application White Point CIE (x,y) T one Response Curve (Gamma) Print Standard Commonly referred to as Proong Standard.
36 | SP EC TR A VI EW II - U SE R’ S G UI DE About T argets SpectraView can also create custom T argets, which can then be exchanged with other SpectraView display users, providing identical calibrated displays.
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38 | SP EC TR A VI EW II - U SE R’ S G UI DE Launching As SpectraView launches, it will automatically search for any supported displays, and a supported color sensor . If SpectraView is unable to detect either a supported display or the last selected color sensor , an error message will be displayed and the Calibrate button will be disabled.
39 | SP EC TR A VI EW II - U SE R’ S G UI DE Calibra ting and Proling the Displa y If more than one supported display monitor is connected, select the display to be calibrated from the Display listbox. Note that each display has an independent T arget.
40 | SP EC TR A VI EW II - U SE R’ S G UI DE Using IC C/C olorS ync Monitor Pr oles The ICC/ColorSync monitor proles generated by SpectraView are used to inform the Color Management System of the color characteristics of the display monitor . Color Management Systems use this information to determine how to display images on-screen.
41 | SP EC TR A VI EW II - U SE R’ S G UI DE Calibr ation Question: How often do I need to calibrate my monitor? Answer: The answer will depend on how critical a color accuracy is necessary , how long the monitor is used per day , environmental conditions and the characteristics of each individual monitor .
42 | SP EC TR A VI EW II - U SE R’ S G UI DE Question: Each time I calibrate my monitor I receive a dif ferent Delta-E result. Should I recalibrate again if I receive a value that is high? Answer: For Delta-E values of less than 2 there is almost certainly no need to recalibrate.
43 | SP EC TR A VI EW II - U SE R’ S G UI DE Installation and Setup Problem : Calibrate button is disabled. Solution : The calibrate button is disabled for either of the following reasons: No supported calibration sensor was detected. No supported display monitor was detected.
44 | SP EC TR A VI EW II - U SE R’ S G UI DE Problem : No supported calibration sensor was detected. Solution : T ry reconnecting the calibration sensor and click the Auto Detect button in the Preferences dialog to re-detect the sensor . It may be necessary to close and re-launch the SpectraView application.
45 | SP EC TR A VI EW II - U SE R’ S G UI DE Using SpectraV iew with NaV iSet A dministra tor ( ÿ W indows version only) The SpectraView II software integrates with the NEC DISPLA Y SOLUTIONS NaViSet Administrator software to provide remote administration of the display monitors on networked machines.
46 | SP EC TR A VI EW II - U SE R’ S G UI DE 9 T est P attern Guide The SpectraView II software includes several test patterns that are useful in evaluating the monitor calibration. It is also good practice to use the T est Patterns to quickly visually verify the integrity of the calibration.
47 | SP EC TR A VI E W I I - US ER ’S G UI DE 10 MultiSync P A Series I nf or mation The SpectraView II software supports the MultiSync P A241W and P A271W monitors. These models feature a custom-designed color processor called the SpectraView Engine.
48 | SP EC TR A VI EW II - U SE R’ S G UI DE Glossar y Achromatic – Neutral in color (having no hue). Additive Primaries – Red, green, and blue light that when combined in different relative inten- sities produces different colors.
49 | SP EC TR A VI EW II - U SE R’ S G UI DE Color Separation – The separating of a color image into the cyan, magenta, yellow , and black color layers used for printing. Color Separation T ables – A set of conversion tables used to calculate the separating of RGB images into the CMYK layers necessary for printing.
50 | SP EC TR A VI EW II - U SE R’ S G UI DE Gamma – The relationship between the input video signal to a display monitor and the screen output luminance. T ypically the screen luminance follows a mathematical power function of the input video signal, the exponent of which is called the gamma.
51 | SP EC TR A VI EW II - U SE R’ S G UI DE P AL – Phase Alternation by Line. A standard for encoding video signals used in Western Eu- rope and parts of Asia. Phosphors – Materials that emit light when struck by radiation of certain wavelengths.
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