Panasonic PT-LW375 Operating Instructions Manual

Also see for PT-LB305: Operating instructions

Contents

Panasonic PT-LW375 Operating Instructions Manual Manual pdf 20 page image

20 - ENGLISHCautions on userTo get a good picture qualityIn order to view a beautiful image in higher contrast, prepare an appropriate environment. Draw curtains or blinds overwindows and turn off any lights near the screen to prevent outside light or light from indoor lamps from shining onto the screen.rDo not touch the surface of the projector lens with your bare hand.If the surface of the lens becomes dirty from fingerprints or anything else, this will be magnified and projected onto the screen.rLCD PanelThe display unit of this projector comprises three LCD panels. Although an LCD panel is a product of high-precisiontechnology, some of the pixels on the projected image may be missing or constantly lit. Please note that this is not amalfunction.Displaying a still image for a longer time may result in an after-image on the LCD panels. If this happens, display the all whitescreen in the Test pattern for an hour or more.rOptical componentsOperating the projector in an environment with high temperature or heavy exposure to dust or tobacco smoke will reduce theservice life of the optical components, such as the LCD panel and polarizing plate, and may necessitate their replacementwithin less than one year of use. For details, consult your dealer.rLampThe luminous source of the projector is a mercury lamp with high internal pressure.A high pressure mercury lamp has following characteristics.f The brightness of the lamp will decrease by duration of usage.f The lamp may burst with sound or shorten life by shock or chipping.f The life of the lamp varies greatly depending on individual specificities and usage conditions. In particular, continuous useover 6 hours and frequent on/off switching of the power greatly deteriorate the lamp and affect the lamp life.f In rare cases, the lamp burst shortly after the projection.f The risk of bursting increases when the lamp is used beyond its replacement cycle. Make sure to replace the lamp unitconsistently. (“When to replace the lamp unit” (x page 101), “Replacing the lamp unit” (x page 102))f If the lamp bursts, gas contained inside of the lamp is released in a form of smoke.f It is recommended to store replacement lamps for contingency.rComputer and external device connectionsWhen connecting a computer or an external device, read this manual carefully regarding the use of power cords and shieldedcables as well.Chapter 1 Preparation - Precautions for use