Error!￿Use￿the￿Home￿tab￿to￿apply￿￿￿￿2￿to￿the￿text￿that￿you￿want￿to￿appear￿here.￿Error!￿Use￿the￿ Home￿tab￿to￿apply￿￿￿￿2￿to￿the￿text￿that￿you￿want￿to￿appear￿here.￿ 4￿Replacement￿Procedures￿

Before￿You￿Begin￿

Before￿you￿begin￿to￿disassemble￿the￿laptop,￿keep￿in￿mind￿the￿precautions￿and￿advice￿in￿this￿ section.￿Always￿begin￿disassembly￿by￿removing￿the￿AC￿adapter￿and￿battery￿pack.￿Remove￿the￿ optional￿parts￿and￿accessories￿as￿well.￿The￿procedures￿for￿removing￿the￿batteries￿will￿be￿ explained￿later.￿

Disassemble￿the￿laptop￿only￿when￿an￿abnormality￿has￿occurred.￿

Use￿only￿the￿recommended￿tools.￿

To￿run￿and￿store￿the￿laptop,￿be￿sure￿to￿prepare￿a￿working￿environment￿that￿is￿free￿from:￿

￿￿ Dust￿and￿contaminants￿

￿￿ Static￿electricity￿

￿￿ Extremely￿high￿or￿low￿temperatures￿and￿extremely￿high￿humidity￿

Run￿the￿diagnostic￿tests￿explained￿in￿Chapter￿2￿of￿this￿manual￿to￿identify￿the￿FRU￿that￿has￿ probably￿caused￿the￿system￿failure.￿

Perform￿only￿the￿required￿machine￿operations.￿Use￿only￿the￿disassembly￿and￿reinstallation￿ procedures￿described￿in￿this￿manual.￿￿

Place￿the￿removed￿components￿in￿a￿safe￿place￿away￿from￿the￿laptop￿so￿that￿they￿are￿not￿damaged￿ or￿get￿in￿the￿way￿of￿you￿doing￿your￿work.￿

Normally,￿a￿number￿of￿screws￿need￿to￿be￿removed￿or￿replaced￿during￿disassembling.￿Place￿the￿ removed￿screws￿in￿a￿safe￿place￿so￿that￿you￿can￿easily￿find￿the￿right￿screws￿for￿the￿right￿ components.￿￿

When￿assembling￿the￿laptop,￿use￿the￿specified￿screws￿to￿fasten￿the￿parts￿to￿the￿specified￿locations.￿ See￿the￿appropriate￿explanations￿and￿figures￿for￿screw￿sizes.￿￿

To￿avoid￿personal￿injury,￿use￿care￿to￿handle￿components￿that￿have￿sharp￿edges￿or￿corners.￿￿

After￿you￿have￿replaced￿a￿FRU,￿check￿that￿the￿FRU￿works￿correctly￿to￿ensure￿normal￿laptop￿ operation.￿

Satellite￿L550￿Maintenance￿Manual￿

4-5￿

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Toshiba PROL550 manual BeforeYouBegin