Runco Vx 6c Projector User Manual
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GLOSSARY CheckboxA menu item that indicates whether an option is currently in effect (checked) or not (unchecked). Color ShiftA change in the color of a white field across an image (white field uniformity). Color TemperatureThe coloration (reddish, white, bluish, greenish, etc.) of white in an image, meas- ured using the Kelvin (degrees K) temperature scale. Higher temperatures appear bluer, while lower color temperatures appear redder. Component VideoSee YCbCr or YPbPr. Composite VideoThe output of video tape players and some computers, characterized by synchro- nization, luminance and color signals combined on one output cable. Contrast (ratio)The degree of difference between the lightest and darkest areas of the image. ConvergenceThe alignment of the red, green, and blue elements of a projected image. Curved ScreenA projection screen which is slightly concave for improved screen gain. Curved screens usually have screen gains which are greater than 1 but viewing angles much less than 180°. Curved screens are not recommended for use with this pro- jector. DDIA Direct Digital Interface signal can be supplied to the projector via an optional digital input module installed in INPUT 2. For example, you can input an SMPTE- 259M signal using a Serial Digital Input Module or input an SMPTE-272M signal from a HDTV Serial Input Module. DMD Digital Micromirror Devicesused in this projector for processing red, green, and blue color data. DecoderLocated at INPUT 3 and INPUT 4, this device converts NTSC 3.58, NTSC 4.4, PAL, PAL-N, PAL-M, or SECAM to RGB video. DetailThe sharpness of a display from a video source. Diffused ScreenA type of rear-projection screen which spreads the light striking it. Screen gain is less than 1 but audience viewing angles are increased. Display SettingAn adjustment that affects the display of an image. Such display settings include contrast, brightness, tint, blanking, size, offsets, and others. FlickerA very rapid variation in image brightness caused by a frame rate that is too slow. (See Interlace.) Frame RateThe frequency at which complete images are generated. For non-interlaced sig- nals, the frame rate is identical to the vertical frequency. For interlaced signals, the frame rate (also known as field rate) is one half of vertical frequency. Foot-candleThe intensity of visible light per square foot. Foot-lambertThe luminance (brightness) which results from one foot-candle of illumination falling on a perfectly diffuse surface. Gain or Screen GainThe ability of a screen to direct incident light to an audience. A flat matte white wall has a gain of approximately 1. Screens with gain less than 1 attenuate inci- dent light; screens with gain more than 1 direct more incident light to the audience but have a narrow viewing angle. For example: An image reflecting off a 10 gain screen appears 10 times brighter than it would if reflected off a matte white wall. A-2
GLOSSARY Curved screens usually have larger gain than flat screens. Help ScreenA display of help information regarding the current task or presentation. Horizontal FrequencyThe frequency at which scan lines are generated, which varies amongst sources. Also called horizontal scan rate or line rate. Horizontal OffsetThe difference between the center of the projected image and the center of the pro- jector lens. For this projector, this value is expressed as the maximum percentage of the image that can be projected to one side of the lens center without degrading the image quality. Horizontal offset ranges can be affected by the type of lens in use, and whether or not the image is offset vertically at the same time. Hot SpotA circular area of a screen where the image appears brighter than elsewhere on the screen. A hot spot appears along the line of sight and moves with the line of sight. High gain screens and rear screens designed for slide or movie projection usually have a hot spot. InputA physical connection route for a source signal, described by a 2-digit number rep- resenting 1) its switcher/projector location and 2) its slot in the switcher/projector. Input SignalSignal sent from a source device to the projector. InterfaceA device, such as the Serial Digital Input Module, that accepts an input signal for display by the projector. InterlaceA method used by video tape players and some computers to double the vertical resolution without increasing the horizontal line rate. If the resulting frame/field rate is too low, the image may flicker depending on the image content. KeypadA small push-button device for controlling most projector settings and operation. For more information, refer to 3.3, Using the Keypad. KeystoneA distortion of the image which occurs when the top and bottom borders of the image are unequal in length. Side borders both slant in or out, producing a key- stone shaped image. It is caused when the screen and lens surface are not parallel. LinearityThe reproduction of the horizontal and vertical size of characters and/or shapes over the entire screen. Line of Best ViewingWhen light from a projector is incident on a screen, the light reflects from the screen such that the angle of reflection equals the angle of incidence. The Line of Best Viewing is along the line of reflection. Loop throughThe method of feeding a series of high impedance inputs from a single video source with a coaxial transmission line in such a manner that the line is terminat- ed with its characteristic impedance at the last input on the line. LumenThe unit of measure for the amount of visible light emitted by a light source. LuxThe amount of visible light per square meter incident on a surface. 1 lux = 1 lumen/square meter = 0.093 foot-candles A-3
GLOSSARY MenuA list of selectable options displayed on the screen. NTSC VideoA video output format of some video tape and disk players. There are two types of NTSC (National Television Standards Committee) video: NTSC 3.58 and NTSC 4.43. NTSC 3.58 is used primarily in North America and Japan. NTSC 4.43 is less commonly used. Optical ScreenA type of rear-projection screen which re-directs light through the screen to increase image brightness in front of the screen. Screen gain is usually greater than 1 but audience viewing angles are reduced. PAL VideoPAL (Phase Alternating Line) video is a 50 Hz standard with 768 x 576 resolution. It is found on some video tape and disk players (used primarily in Europe, China and some South American and African countries). PincushionA distortion of the image shape characterized by concave or convex borders. Pixel (picture element)The smallest discernible element of data from a computer-generated image. Pixel PhaseThe phase of the pixel sampling clock relative to incoming data. Pixel TrackingThe frequency of the pixel sampling clock, indicated by the number of pixels per line. Projector-to-Screen Distance The distance between the projectors front feet centers and the screen. Also called Throw Distance. ProtocolThe type of code format called A or B utilized by the remote keypad(s). The default protocol set at manufacture is Protocol A. By using two different keypad protocols, adjacent projectors can be controlled independently with their remote IR keypads. Pull-down ListA selectable menu item that unfolds into a list of options pertaining to it. Rear ScreenA translucent panel for screen projection. Incident light travels through the inci- dent surface of a rear screen and forms an image on the other surface. ResizingThe ability to manipulate through software commands the physical size, placement and/or aspect ratio of an image. Resolution (lens)The maximum number of alternate white and black horizontal lines that can be dis- tinguished on a screen when a photographic target is placed between the lens and a light source and illuminated by that source. Resolution (projector)The maximum number of pixels that the projector can display horizontally and vertically across an image, such as 1280 x 1024. Retrace Time(Horizontal) The minimum time required for a CRT projector to move the position of the scanning spot from the right edge to the left edge. Rise TimeThe time required by the video amplifier of the projector to increase its output from 10% to 90% of the maximum value. A-4
RGB VideoThe video output (analog or digital) of most computers. Analog RGB video can have 3, 4, or 5 wires - one each for red, green, and blue, and either none, one or two for sync. For three-wire RGB, the green wire usually provides sync. (See TTL Video). RS-232A common asynchronous data transmission standard recommended by the Electronics Industries Association (EIA). Also called serial communication. RS-422A less common asynchronous data transmission standard in which balanced differential voltage is specified. RS-422 is especially suited to long distances. S-VideoThe output from certain video tape players and video equipment. S-Video separates sync and luminance from color information, typically producing a higher quality display than composite video. Scan FrequencyThe horizontal or vertical frequency at which images are generated. Scan LineOne horizontal line on the display. SECAMA video output format of some video tape and disc players (used primarily in France). SECAM (Sequential Couleur á Mémoire) signals are similar in resolution and frequency to PAL signals. The primary difference between the two standards is in the way color information is encoded. SlidebarA slidebar is a graphical display of an adjustable setting. The numerical setting often rep- resents a percentage but can be a specific unit such as degrees Kelvin. SourceThe device, such as a computer or VCR, connected to the projector for display. A source is identified at the projector as , , , or , or as other user-defined num- bers. A source may have numerous corresponding channels defined and recognized by the projector. See Input. Source SetupSee Channel. Spot SizeThe diameter of the smallest dot that can be generated by a CRT projector. This projector has a fixed spot (pixel) size. SyncThis term refers to the part of the video signal that is used to stabilize the picture. Sync can occur in three forms: 1) Composite sync: the horizontal and vertical components are together on one cable. 2) Sync-on-green: the sync is part of the green video. 3) Separate sync or H.SYNC and V.SYNC: the horizontal and vertical components of the sync are on two separate cables. Sync WidthThe duration of each sync pulse generated by a computer. The sync width is part of the blanking time. TTL VideoA type of RGB video with digital characteristics. TerminatedA wire connecting a single video source to a display device, such as a projector, must be terminated by a resistance (usually 75Ωfor video). Input1 Input2 Input3 Input4 A-5 GLOSSARY
GLOSSARY A-6 Throw DistanceThe distance between the front feet of the projector and the screen. Also called Projector- to-Screen Distance. Always use the correct throw distance formula to calculate the prop- er throw distance (±5%) required for your lens. TintBalance of red-to-green necessary for realistic representation of NTSC signals. Variable ScanThe ability of a projector to synchronize to inputs with frequencies within a specified range. Vertical FrequencyThe frequency at which images are generated. Vertical frequencies vary amongst sources. Also called vertical scan rate. Vertical OffsetThe difference between the center of the projected image and the center of the projector lens. For this projector, this value is expressed as the maximum percentage of the image that can be projected above or below the lens center without degrading the image quality. Vertical offset ranges depend on the type of lens in use, and whether or not the image is offset horizontally at the same time. VideoThe signal that is used by display devices (such as projectors) to generate an image. This term also refers to the output of video tape/disk players and computers. Video DecoderAn optional device that converts NTSC 3.58, NTSC 4.4, PAL, PAL-N, PAL-M or SECAM to RGB video. Video StandardA specific type of video signal, such as NTSC, PAL, SECAM. This projector can auto- matically recognize and interpret the incoming standard and display accordingly. Viewing AngleScreens do not reflect equally in all directions. Most light is reflected in a conical volume centered around the line of best viewing. Maximum brightness is perceived if you are within the viewing cone defined by the horizontal and vertical viewing angles. White BalanceThe color temperature of white used by the projector. White FieldThe area of an image that is white only. For example, a full white field is an image that is white everywhere. A 10% white field is a white area (usually rectangular) that occupies 10% of the image; the remaining 90% is black. YCbCrA high-end digitalcomponent video signal. YPbPrA high-end analogcomponent video signal. Sometimes called YUV, Component, or Y, R- Y, B-Y, the YPbPr signal by-passes the video decoder in this projector. YUVSee YPbPr. ZoomThe adjustment of image size by means of a zoom lens.
KEYPAD REFERENCE Figure B-1. Keypad Appendix B B-1
Menu Tree Appendix C Bank:02 ISF Night ISF Day 6500K 9300K Custom 1 Custom 2 Custom 3 Custom 4 Infinite Adjustable 1.0 2.2 2.2S 2.2SN 2.8 2.8SImage Adjustments Contrast Brightness Sharpness Signal Type Color Balance Signal Settings Formatter Adjust Next Page...RGB YPbPr (Video) YPbPr (HDTV) Scaling Parameters Size Vertical Stretch Pixel Track Pixel Phase Filter H-Position V-Position Blanking 1200 2400 9600 19200 38400 57600 115200 Floor Front Floor Rear Ceiling front Ceiling Rear 4:3 Upper/Left 4:3 In 1 4:3 In 2 16:9 Upper/Left 16:9 In 1 16:9 In 2 Variable Installation Projector Configuration OSD Language OSD Settings IR and Serial Setup Geometry Installer Options Operational Perameters Baud Rate Front IR Receiver Back IR Receiver Memory Banks Copy/Delete Copy Current Delete Current Bank Delete Non-protected Banks Delete All Memory Banks Memory Banks C-1
C-2 Appendix C Continued... 3200K 5400K 6500K 9300K Custom 1 Custom 2 Custom 3 Custom 4 Factory 3200K Factory 5400K ISF Night ISF Day 6500K 9300K Custom 1 Custom 2 Custom 3 Custom 4 Infinite Variable
RUMA-010450 12-03 Runco International .2900 Faber Street .Union City, CA 94587 .Ph (510) 324-7777 .Fax (510) 324-9300 .www.runco.com