Hardware Maintenance Manual - Lenovo Y40 50 Series

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Y40-70/Y40-80/Y50-70/Y50-80/Y50-70 Touch/Y50-80 Touch
Hardware Maintenance Manual
Removing and replacing an FRU
Thissectionpresentsexplodedgures withtheinstructionstoindicatehowto
removeandreplacetheFRU.Makesuretoobservethefollowinggeneralrules:
1. Donotattempttoserviceanycomputerunlessyouhavebeentrainedand
certied.Anuntrainedpersonrunstheriskofdamagingparts.
2. BeforereplacinganyFRU,review“FRUreplacementnotices”onpage31.
3. BeginbyremovinganyFRUsthathavetoberemovedbeforethefailing
FRU.AnyofsuchFRUsarelistedatthetopofthepage.Removethemin
theorderinwhichtheyarelisted.
4. FollowthecorrectsequenceinthestepstoremovetheFRU,asgiveninthe
guresbythenumbersinsquarecallouts.
5. WhenturningascrewtoreplaceanFRU,turnitinthedirectionasgivenby
thearrowinthegure.
6. WhenremovingtheFRU,move itinthedirectionasgivenbythearrow in
thegure.
7. To putthenewFRUinplace,reversetheremovalproceduresand follow
anyofthenotesthatpertain toreplacement. Forinformation about
connectingandarranginginternalcables,see“Locations”onpage81.
8. WhenreplacinganFRU,usethecorrectscrewasshownintheprocedures.
DANGER
Before removing any FRU, turn off the computer, unplug all power cords from
electrical outlets, remove the battery pack, and then disconnect any of the
interconnecting cables.
Attention:
AfterreplacinganFRU,donotturnonthecomputeruntilyouhave
madesurethatallscrews,springs,andothersmallpartsareinplaceandnone
areloose insidethe computer.Verifythis byshakingthecomputergently and
listeningforrattlingsounds.Metallic partsormetalakescancauseelectrical
shortcircuits.
Attention:
Thesystem boardissensitiveto,andcanbe damagedby,
electrostaticdischarge. Beforetouchingit,establishpersonal groundingby
touchingagroundpointwithonehandorusinganelectrostaticdischarge(ESD)
strap(P/N6405959)toremovepotentialshockreasons.
Notes:
•
The following procedures about removing and replacing FRUs are the same for the
Lenovo Y40-70/Y40-80/Y50-70/Y50-80/Y50-70 Touch/Y50-80 Touch.
•
The illustrations used in this section are of the Lenovo Y50-70 Touch, unless
otherwise stated.