Lenovo T550 Technical Information Page 25
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Chapter2.Importantserviceinformation
Thischapterintroducesfollowingimportantserviceinformationthatappliestoallmachinetypessupported
bythismanual:
•“StrategyforreplacingFRUs”onpage19
–“Strategyforreplacingasolid-statedrive”onpage19
–“Importantnoticeforreplacingasystemboard”onpage20
–“Howtouseerrormessage”onpage20
•“StrategyforreplacingFRUsforCTO,special-bid,andstandardmodels”onpage20
–“Productdefinition”onpage20
–“FRUidentification”onpage20
Important:
•AdvisecustomerstocontacttheLenovo
®
SupportWebsiteathttp://www.lenovo.com/supporttoview
thesoftwarefixes,downloadthedrivers,andfollowtheon-screeninstructionstoinstallthedrivers.For
additionalassistance,customersmightcalltheLenovoCustomerSupportCenter.Telephonenumbersfor
theLenovoSupportCenterareavailableat:
http://www.lenovo.com/support/phone
•ServicetrainingdocumentsforLenovoauthorizedservicetechniciansareavailableatthefollowingWeb
site.ThedisassemblyandreassemblyvideosthatshowtheFRUremovalandreplacementprocedures
arecontainedinthedocuments.
http://www.lenovoservicetraining.com
StrategyforreplacingFRUs
Beforereplacingparts:
Ensurethatallsoftwarefixes,drivers,andUEFIBIOSdownloadsareinstalledbeforereplacinganyFRUs
listedinthismanual.
Afterasystemboardisreplaced,ensurethatthelatestUEFIBIOSisloadedtothesystemboardbefore
completingtheserviceaction.
Todownloadsoftwarefixes,drivers,andUEFIBIOS,gotohttp://www.lenovo.com/ThinkPadDriversand
followtheinstructionsonthescreen.
UsethefollowingstrategytopreventunnecessaryexpenseforreplacingandservicingFRUs:
•IfyouareinstructedtoreplaceaFRUbutthereplacementdoesnotcorrecttheproblem,reinstallthe
originalFRUbeforeyoucontinue.
•Somecomputershavebothaprocessorboardandasystemboard.Ifyouareinstructedtoreplaceeither
theprocessorboardorthesystemboard,andreplacingoneofthemdoesnotcorrecttheproblem,
reinstallthatboard,andthenreplacetheotherone.
•IfanadapteroradeviceconsistsofmorethanoneFRU,anyoftheFRUsmaybethecauseoftheerror.
Beforereplacingtheadapterordevice,removetheFRUs,onebyone,toseeifthesymptomschange.
ReplaceonlytheFRUthatchangedthesymptoms.
Strategyforreplacingasolid-statedrive
Alwaystrytorunalow-levelformatbeforereplacingasolid-statedrive.Thiswillcauseallcustomerdata
onthesolid-statedrivetobelost.Besurethatthecustomerhasacurrentbackupofthedatabefore
doingthistask.
©CopyrightLenovo2015
19
- HardwareMaintenanceManual 1
- FirstEdition(January2015) 2
- ©CopyrightLenovo2015 2
- Contents 3
- AppendixA.Notices.........103 4
- Aboutthismanual 5
- Chapter1.Safetyinformation 7
- Safetyinspectionguide 8
- Chapter1.Safetyinformation3 9
- Groundingrequirements 10
- Chapter1.Safetyinformation5 11
- 6HardwareMaintenanceManual 12
- .Safetyinformation7 13
- Chapter1.Safetyinformation9 15
- VORSICHT 17
- .Safetyinformation11 17
- 12HardwareMaintenanceManual 18
- .Safetyinformation13 19
- 14HardwareMaintenanceManual 20
- .Safetyinformation15 21
- 16HardwareMaintenanceManual 22
- .Safetyinformation17 23
- 18HardwareMaintenanceManual 24
- StrategyforreplacingFRUs 25
- Howtouseerrormessage 26
- Productdefinition 26
- FRUidentification 26
- 22HardwareMaintenanceManual 28
- Chapter3.Generalcheckout 29
- Checkoutguide 30
- LenovoSolutionCenter 30
- Quicktestprograms 30
- UEFIdiagnosticprogram 31
- Bootablediagnosticprograms 31
- Powersystemcheckout 32
- Checkingtheacpoweradapter 32
- Checkingthecoin-cellbattery 33
- 28HardwareMaintenanceManual 34
- Passwords 38
- Power-onpassword 38
- Harddiskpassword 38
- Supervisorpassword 39
- Powermanagement 40
- Sleepmode 40
- Hibernationmode 41
- Symptom-to-FRUindex 41
- Numericerrorcodes 42
- Errormessages 43
- Beepsymptoms 43
- No-beepsymptoms 44
- LCD-relatedsymptoms 44
- Intermittentproblems 44
- Undeterminedproblems 45
- 40HardwareMaintenanceManual 46
- Chapter5.Locations 47
- Left-sideview 48
- Bottomview 48
- LocatingFRUsandCRUs 49
- MajorFRUs 50
- Chapter5.Locations45 51
- 46HardwareMaintenanceManual 52
- Formodelswithtouchfunction: 53
- .Locations47 53
- Miscellaneouspart 54
- 48HardwareMaintenanceManual 54
- LookingupFRUinformation 55
- 50HardwareMaintenanceManual 56
- Commonservicetools 57
- Screwnotices 57
- 90degreesmore 58
- (Cross-section) 58
- 180degreesmore 58
- RetainingtheUUID 59
- Generalguidelines 61
- Beforeservicingthecomputer 62
- Disablingthebuilt-inbattery 62
- RemovingthemicroSIMcard 62
- RemovingamajorFRU 62
- 1010Removablebattery 63
- 1020Basecoverassembly 63
- 58HardwareMaintenanceManual 64
- 1030Keyboard 65
- Removalstepsofthekeyboard 66
- 60HardwareMaintenanceManual 66
- 62HardwareMaintenanceManual 68
- StepScrew(quantity)Color 70
- (1.85kgf-cm) 70
- 1050Memorymodule 72
- 1060WirelessLANcard 72
- 1070WirelessWANcard 73
- 1080M.2solid-statedrive 74
- 1090Coin-cellbattery 75
- 1130Thermalfan 79
- 1140Speakerassembly 81
- 1160Fingerprintreaderassembly 83
- Black0.181Nm 84
- 1180Systemboardassembly 85
- 1190LCDunit 87
- 1210Powerbuttonboard 89
- 1220Keyboardassembly 90
- 2010LCDbezelassembly 91
- 2020LCDpanelandLCDcable 91
- 2030Hingesandhingebrackets 92
- 2040Camera/microphonecard 93
- 2050LEDcableassembly 94
- 3010LCDfrontsheetbezel 98
- (3 kgf-cm) 99
- 3030Hinges 100
- 3040Camera/microphonecard 101
- 3050Touchsensorcard 102
- 3060LEDcableassembly 103
- .RemovingorreplacingaFRU99 105
- 102HardwareMaintenanceManual 108
- AppendixA.Notices 109
- Electronicemissionsnotices 110
- Trademarks 110
- *1PSP40G55010* 112
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