Dell Precision M90 User Manual

Also see for Precision M90: Quick reference guide Quick reference guide Service manual User guide

Contents

Back to Contents PageAppendixDell Precision™ M90 User's GuideCleaning Your ComputerMacrovision Product NoticeFCC Notice (U.S. Only)Cleaning Your ComputerComputer, Keyboard, and Displayl Use a can of compressed air to remove dust from between the keys on the keyboard and to remove any dirt or lint from the display.l Moisten a soft, lint-free cloth with either water or a display cleaner. Do not use alcohol or an ammonia-based cleaner. Wipe the display gently workingfrom the center to the edges until it is clean and any fingerprints are removed. Do not use excessive pressure.l Moisten a soft, lint-free cloth with water and wipe the computer and keyboard. Do not allow water from the cloth to seep between the touch pad andthe surrounding palm rest.Touch Pad1. Shut down and turn off your computer. See Turning Off Your Computer.2. Disconnect any attached devices from the computer and from their electrical outlets.3. Remove any installed batteries. See Replacing the Battery.4. Moisten a soft, lint-free cloth with water, and wipe it gently across the surface of the touch pad. Do not allow water from the cloth to seep between thetouch pad and the surrounding palm rest.CDs and DVDsIf you notice problems, such as skipping, with the playback quality of your CDs or DVDs, try cleaning the discs.1. Hold the disc by its outer edge. You can also touch the inside edge of the center hole.2. With a soft, lint-free cloth, gently wipe the bottom of the disc (the unlabeled side) in a straight line from the center to the outer edge of the disc.For stubborn dirt, try using water or a diluted solution of water and mild soap. You can also purchase commercial products that clean discs and providesome protection from dust, fingerprints, and scratches. Cleaning products for CDs are also safe to use on DVDs.Macrovision Product NoticeThis product incorporates copyright protection technology that is protected by U.S. patents and other intellectual property rights. Use of this copyrightprotection technology must be authorized by Macrovision, and is intended for home and other limited viewing uses only unless otherwise authorized byMacrovision. Reverse engineering or disassembly is prohibited.CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.CAUTION: Before you clean your computer, disconnect the computer from the electrical outlet and remove any installed batteries. Clean yourcomputer with a soft cloth dampened with water. Do not use liquid or aerosol cleaners, which may contain flammable substances.NOTICE: To avoid damaging the computer or display, do not spray cleaning solution directly onto the display. Only use products specifically designed forcleaning displays, and follow the instructions that are included with the product.NOTICE: Always use compressed air to clean the lens in the CD/DVD drive, and follow the instructions that come with the compressed-air product.Never touch the lens in the drive.NOTICE: To avoid damaging the surface, do not wipe in a circular motion around the disc.