Service Manual
CAUTION: To avoid damaging the computer, ensure that the work 
surface is flat and clean.
CAUTION: To avoid damaging the components and cards, handle them 
by their edges, and avoid touching pins and contacts.
CAUTION: You should only perform troubleshooting and repairs as 
authorized or directed by the Dell technical assistance team. Damage due 
to servicing that is not authorized by Dell is not covered by your 
warranty. See the safety instructions that shipped with the product or at 
www.dell.com/regulatory_compliance.
CAUTION: Before touching anything inside your computer, ground 
yourself by touching an unpainted metal surface, such as the metal at the 
back of the computer. While you work, periodically touch an unpainted 
metal surface to dissipate static electricity, which could harm internal 
components.
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 or thumb-screws that you must disengage before disconnecting the 
cable. When disconnecting cables, keep them evenly aligned to avoid 
bending any connector pins. When connecting cables, ensure that the 
ports and connectors are correctly oriented and aligned.
CAUTION: Press and eject any installed card from the media-card 
reader.
Recommended tools
The procedures in this document may require the following tools:
• Phillips screwdriver
• Plastic scribe
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