Dell Latitude 7280 Owner's Manual

Also see for Latitude 7280: Owner's manual Owner's manual Owner's manual

Contents

Dell Latitude 7280 Owner's Manual Manual pdf 7 page image

3 If the computer is connected to a docking device (docked), undock it.4 Disconnect all network cables from the computer (if available).CAUTION: If your computer has an RJ45 port, disconnect the network cable by first unplugging the cable from yourcomputer.5 Disconnect your computer and all attached devices from their electrical outlets.6 Open the display.7 Press and hold the power button for few seconds, to ground the system board.CAUTION: To guard against electrical shock unplug your computer from the electrical outlet before performing Step #8.CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touchingan unpainted metal surface at the same time as touching a connector on the back of the computer.8 Remove any installed ExpressCards or Smart Cards from the appropriate slots.Safety instructionsUse the following safety guidelines to protect your computer from potential damage and to ensure your personal safety. Unless otherwisenoted, each procedure included in this document assumes that the following conditions exist:• You have read the safety information that shipped with your computer.• A component can be replaced or, if purchased separately, installed by performing the removal procedure in reverse order.WARNING: Disconnect all power sources before opening the computer cover or panels. After you finish working inside thecomputer, replace all covers, panels, and screws before connecting to the power source.WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additionalsafety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_complianceCAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simplerepairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damagedue to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that camewith the product.CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching anunpainted metal surface that is grounded to ground yourself before you touch the computer to perform any disassembly tasks.CAUTION: Handle components and cards with care. Do not touch the components or contacts on a card. Hold a card by itsedges or by its metal mounting bracket. Hold a component such as a processor by its edges, not by its pins.CAUTION: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable itself. Some cables haveconnectors with locking tabs; if you are disconnecting this type of cable, press in on the locking tabs before you disconnect thecable. As you pull connectors apart, keep them evenly aligned to avoid bending any connector pins. Also, before you connect acable, ensure that both connectors are correctly oriented and aligned.NOTE: The color of your computer and certain components may appear differently than shown in this document.After working inside your computerAfter you complete any replacement procedure, ensure that you connect external devices, cards, and cables before turning on yourcomputer.CAUTION: To avoid damage to the computer, use only the battery designed for this particular Dell computer. Do not use batteriesdesigned for other Dell computers.1 Connect any external devices, such as a port replicator or media base, and replace any cards, such as an ExpressCard.2 Connect any telephone or network cables to your computer.Working on your computer 7