Manual do usuário PHILIPS 109B40

[. . . ] electronic user's manual file:///D|/rita/LF2/LF2/LFa1/multi_manual/english/109B/manual. html [8/29/2001 3:03:20 PM] Safety & Troubleshooting Safety and Troubleshooting Information Safety Precautions and Maintenance · Troubleshooting · Regulatory Information · Other Related Information Safety precautions and maintenance WARNING: Use of controls, adjustments, or procedures other than those specified in this documentation may result in exposure to shock, electrical hazards, and/or mechanical hazards. Read and follow these instructions when connecting and using your computer monitor: q Disconnect the monitor from the power supply if the monitor is not to be used for an extended period of time. q q q q Do not attempt to remove the back cover, as you will be exposed to a shock hazard. The back cover should only be removed by qualified service personnel. Do not place objects on top of the monitor cabinet, objects could fall into vents or cover them and prevent proper cooling of the monitor's electronic devices. To avoid the risk of shock or permanent damage to the set, do not expose the monitor to rain or excessive moisture. [. . . ] See Electromagnetic radiation standards. Low-frequency electric and magnetic fields Alternating fields generated by the deflection yoke. These are subject to increasing attention, notably by governing authorities, the trade and the press. Although there is no scientific evidence that monitor emissions are harmful, much effort has gone into reducing emissions on the principle of better safe than sorry. Currently, there are two areas of interest: very-low frequency (VLF) electric and magnetic fields extending from 2 kHz to 400 kHz, and extreme low frequency (ELF) fields extending from 5 Hz to 2 kHz. See also Electromagnetic radiation standards. RETURN TO TOP OF THE PAGE file:///D|/rita/LF2/LF2/LFa1/multi_manual/english/GLOSSARY/GLOSSARY. HTM (8 of 18) [8/29/2001 3:03:55 PM] Glossary M Moiré effect A fringe pattern arising from the interference between two superimposed line patterns. In a monitor it comes from the interference between the shadow mask pattern and the video information (video moiré), and between the shadow mask pattern and the horizontal line pattern (scan moiré). It shows itself as wavy patterns on the screen and becomes more noticeable as monitor resolution increases. Since the video signal varies continuously, little can be done about video moiré. Scan moiré depends on the horizontal scanning frequency and can be alleviated by appropriate choice of frequency. Autoscan (MultiSync) monitors, which operate over a range of scanning frequencies, may sometimes exhibit moiré in certain video modes. MPR See Electromagnetic radiation standards. MultiSync monitor See Autoscan monitor. RETURN TO TOP OF THE PAGE N Non-interlaced See Interlaced/non-interlaced. RETURN TO TOP OF THE PAGE O OSD (On Screen Display) The feature that allows an end user to adjust screen performance and parameters of monitors directly through an on-screen instruction window. See CustoMax in CrystalClear section. Overscan The practice in which areas without useful video information are scanned outside the visible screen area in order to make maximum use of the screen for display of active video information. This practice is occasionally necessary because some video cards generate a video pattern that is smaller than the visible file:///D|/rita/LF2/LF2/LFa1/multi_manual/english/GLOSSARY/GLOSSARY. HTM (9 of 18) [8/29/2001 3:03:55 PM] Glossary screen area, resulting in an image that is smaller (and less legible) than it needs to be. RETURN TO TOP OF THE PAGE P Parallelogram Distortion See Geometric distortion. Phosphor Generic name for the class of substances that exhibit luminescence. To produce a picture on screen, phosphors are deposited on the inner surface of the picture-tube screen and excited into luminescence by the electron beam. Typical examples of phosphors are P22 medium short-persistence phosphor and EBU high-color-saturation phosphor. Pin-cushion Distortion See Geometric distortion. Pixel Abbreviation for picture element, the smallest element of the picture that can be displayed on the screen. The smaller the pixel size, the better the resolution of the monitor. Pixel size is determined by the size of the electron spot on the screen and not necessarily by the phosphor dot pitch (the size of the triad). Thus, a monitor with a large electron spot covering several triads can exhibit poor resolution even though its dot pitch is small. Pixel frequency The number of pixels that can be written in a video line per second. Pixel rate See pixel frequency Plug-and-Play See DDC. RETURN TO TOP OF THE PAGE file:///D|/rita/LF2/LF2/LFa1/multi_manual/english/GLOSSARY/GLOSSARY. HTM (10 of 18) [8/29/2001 3:03:55 PM] Glossary R Raster The area on screen that electron beam can reach. Refresh rate See Vertical scanning frequency. Resolution The number of pixels that can be displayed on the screen. [. . . ] Adjustments of the controls discussed there may save you a service call. TO GET WARRANTY SERVICE IN U. S. A. , PUERTO RICO OR U. S. Contact the Philips Customer Care Center phone number listed below for product assistance and procedures for servicing: Philips Customer Care Center (877) 835-1838 or (903) 242-4804 (In U. S. A. , Puerto Rico and U. S. Virgin Islands, all implied warranties, including implied warranties of merchantability and fitness for a particular purpose, are limited in duration to the duration of this express warranty. But, because some states do not allow limitations on how long an implied warranty may last, this limitation may not apply to you. ) TO GET WARRANTY SERVICE IN CANADA. . . [. . . ]