Dell Inspiron 5580 Service Manual

Also see for Inspiron 5580: Owner's manual Owner's manual Quick start guide Quick start guide Setup

Contents

Safety instructionsUse the following safety guidelines to protect your computer from potential damage and ensure your personal safety.WARNING: Before working inside your computer, read the safety information that shipped with your computer. For more safetybest practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance.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 electrical outlet.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 shippedwith 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 themetal 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 haveconnectors with locking tabs or thumb-screws that you must disengage before disconnecting the cable. When disconnectingcables, keep them evenly aligned to avoid bending any connector pins. When connecting cables, ensure that the ports andconnectors are correctly oriented and aligned.CAUTION: Press and eject any installed card from the media-card reader.Electrostatic discharge—ESD protectionESD is a major concern when you handle electronic components, especially sensitive components such as expansion cards, processors,memory DIMMs, and system boards. Very slight charges can damage circuits in ways that may not be obvious, such as intermittentproblems or a shortened product life span. As the industry pushes for lower power requirements and increased density, ESD protection is anincreasing concern.Due to the increased density of semiconductors used in recent Dell products, the sensitivity to static damage is now higher than in previousDell products. For this reason, some previously approved methods of handling parts are no longer applicable.Two recognized types of ESD damage are catastrophic and intermittent failures.• Catastrophic – Catastrophic failures represent approximately 20 percent of ESD-related failures. The damage causes an immediate andcomplete loss of device functionality. An example of catastrophic failure is a memory DIMM that has received a static shock andimmediately generates a "No POST/No Video" symptom with a beep code emitted for missing or nonfunctional memory.• Intermittent – Intermittent failures represent approximately 80 percent of ESD-related failures. The high rate of intermittent failuresmeans that most of the time when damage occurs, it is not immediately recognizable. The DIMM receives a static shock, but thetracing is merely weakened and does not immediately produce outward symptoms related to the damage. The weakened trace maytake weeks or months to melt, and in the meantime may cause degradation of memory integrity, intermittent memory errors, etc.The more difficult type of damage to recognize and troubleshoot is the intermittent (also called latent or "walking wounded") failure.Perform the following steps to prevent ESD damage:• Use a wired ESD wrist strap that is properly grounded. The use of wireless anti-static straps is no longer allowed; they do not provideadequate protection. Touching the chassis before handling parts does not ensure adequate ESD protection on parts with increasedsensitivity to ESD damage.3Safety instructions 9