Lenovo Y50-70 User Manual download pdf (Page 9)

Safety information

Safety inspection guide

Thepurpose ofthis inspectionguideistoassistyouinidentifyingpotential

unsafeconditions.Aseachmachine wasdesigned andbuilt, requiredsafety

itemswereinstalledtoprotectusersandservicepersonnelfrominjury.This

guideaddressesonlythoseitems.Youshould usegood judgmentto identify

potentialsafetyhazardsaccordingtotheattachmentofnon-Lenovofeaturesor

optionsnotcoveredbythisinspectionguide.

Ifanyunsafeconditionsarepresent,youmustdetermine howserious the

apparenthazardcouldbeandwhetheryoucancontinuewithoutrstcorrecting

theproblem.

Considertheseconditionsandthesafetyhazardstheypresent:

• Electricalhazards,especiallyprimarypower(primaryvoltageontheframe

cancauseseriousorfatalelectricalshock)

• Explosivehazards,suchasadamagedCRTfaceorabulgingcapacitor

• Mechanicalhazards,suchaslooseormissinghardware

Todeterminewhetherthere areanypotentialunsafeconditions,usethe

followingchecklistatthebeginningofeveryservicetask.Beginthecheckswith

thepoweroff,andthepowercorddisconnected.

Checklist:

1. Checkexteriorcoversfordamage(loose,broken,orsharpedges).

2. Turnoffthecomputer.Disconnectthepowercord.

3. Checkthepowercordfor:

a. Athird-wiregroundconnectoringoodcondition.Useametertomeasure

third-wiregroundcontinuityfor0.1ohmorlessbetweentheexternal

groundpinandtheframeground.

b. Thepowercordshouldbethetypespeciedinthepartslist.

c. Insulationmustnotbefrayedorworn.

4. Checkforcrackedorbulgingbatteries.

5. Removethecover.

6. Checkforanyobviousnon-Lenovoalterations.Usegoodjudgmentastothe

safetyofanynon-Lenovoalterations.

7. Checkinside theunit forany obviousunsafe conditions,suchasmetal

filings,contamination,waterorotherliquids,orsignsoffireorsmoke

damage.

8. Checkforworn,frayed,orpinchedcables.

9. Checkthat thepower-supply coverfasteners(screwsorrivets) havenot

beenremovedortamperedwith.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 105 106

No comments

Lenovo Y50-70 User Manual Page 9