Dell Inspiron 1428 Service Manual

Contents

10 Before You BeginBefore Working Inside Your ComputerUse the following safety guidelines to help protect your computer frompotential damage and to help to ensure your own personal safety.WARNING: Before working inside your computer, read the safety informationthat shipped with your computer. For additional safety best practices information,see the Regulatory Compliance Homepage atwww.dell.com/regulatory_compliance.CAUTION: To avoid electrostatic discharge, ground yourself by using a wristgrounding strap or by periodically touching an unpainted metal surface (such as aconnector on your computer).CAUTION: Handle components and cards with care. Do not touch the componentsor contacts on a card. Hold a card by its edges or by its metal mounting bracket.Hold a component such as a processor module by its edges, not by its pins.CAUTION: Only a certified service technician should perform repairs on yourcomputer. Damage due to servicing that is not authorized by Dell™ is not coveredby your warranty.CAUTION: When you disconnect a cable, pull on its connector or on its pull-tab,not on the cable itself. Some cables have connectors with locking tabs; if you aredisconnecting this type of cable, press in on the locking tabs before youdisconnect the cable. As you pull connectors apart, keep them evenly aligned toavoid bending any connector pins. Also, before you connect a cable, ensure thatboth connectors are correctly oriented and aligned.CAUTION: To avoid damaging the computer, perform the following steps beforeyou begin working inside the computer.1 Ensure that the work surface is flat and clean to prevent the computercover from being scratched.2 Turn off your computer (see "Turning Off Your Computer" on page 9).3 If the computer is connected to a docking device (docked), undock it. Seethe documentation that came with your docking device for instructions.CAUTION: To disconnect a network cable, first unplug the cable from yourcomputer and then unplug the cable from the network device.4 Disconnect all telephone or network cables from the computer.5 Press and eject any installed cards from the ExpressCard slot or the 3-in-1Media Card Reader.