16 - ENGLISHChapter 1 Preparation — Precautions for useDisposalTo dispose of the product, ask your local authorities or dealer for correct methods of disposal.The lamp contains mercury. When disposing of used lamp units, contact your local authorities or dealer for correct methods of disposal.Cautions on userr To get a good picture qualityIn order to view a beautiful image in higher contrast, prepare an appropriate environment. Draw curtains or blinds over windows and turn offany lights near the screen to prevent outside light or light from indoor lamps from shining onto the screen.rr Do not touch the surface of the projection lens with your bare hands.If the surface of the projection lens becomes dirty from fingerprints or anything else, this will be magnified and projected onto the screen.Please put the lens cover (accessory) on the projector when you do not use it.rr DLP chipsrf The DLP chips are precision-made. Note that in rare cases, pixels of high precision could be missing or always lit. Note that suchphenomena does not indicate malfunction. This is not a malfunction.rf Directing a high-power laser beam onto the lens surface can damage the DLP chips.rr Do not move the projector while it is operating or subject it to vibration or impact.Doing so may shorten the service life of its internal components.rr LampThe luminous source of the projector is a high-pressure mercury lamp.A high-pressure mercury lamp has the following characteristics.rf The luminance of the lamp will decrease by duration of usage.rf The lamp may burst with a loud sound or have its service life shortened because of shock, chipping, or degradation due to cumulativeoperating time.rf The lamp life varies greatly depending on individual differences and usage conditions. In particular, frequently switching the power on/offaccelerates lamp deterioration and greatly affects lamp life.rf Continuous use for one week or longer accelerates lamp deterioration. Lamp relay function (x page 77) can be used to reducedeterioration caused by continuous use.rf In rare cases, the lamps burst shortly after projection starts.rf The risk of bursting increases when the lamp is used beyond its replacement cycle. Make sure to replace the lamp unit regularly.(“When to replace the lamp unit” (x page 114), “Replacing the lamp unit” (x page 114))rf If the lamp bursts, gas contained inside of the lamp is released in a form of smoke.rf It is recommended that you store replacement lamp units for contingency.rr About connections to computer or peripheral devicerf To assure continued compliance, follow the attached installation instructions, which include using the provided power cord and shieldedinterface cables when connecting to computer or peripheral device.rf Use a commercial DVI-D cable with a ferrite core.Software information regarding this product© Panasonic Corporation 2012This product incorporates the following software.(1) The software which is developed independently by or for Panasonic Corporation(2)The software which is licensed under the GNU GENERAL PUBLIC LICENSE(3)The software which is licensed under the GNU LESSER GENERAL PUBLIC LICENSEFor the license conditions of software categorized as (2) and (3), refer to the provisions of the Software license (GNU GENERAL PUBLICLICENSE and GNU LESSER GENERAL PUBLIC LICENSE) in the supplied CD-ROM. (Those provisions are written in the original (English)because they have been stipulated by third parties.)If you have any questions regarding the software, contact (sav.pj.gpl.pavc@ml.jp.panasonic.com) by E-mail.