Lenovo ThinkServer RD240 - Page 30

•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•SeethepartslistinginChapter8“Partslisting,RD240Types1045,1046,1047,and1048”onpage93to
determinewhichcomponentsarecustomerreplaceableunits(CRUs)andwhichcomponentsareeld
replaceableunits(FRUs).
•Ifanactionstepisprecededby“(Trainedservicetechnicianonly),”thatstepmustbeperformedonlyby
atrainedservicetechnician.
SymptomAction
Testingthemonitor
1.Makesurethatthemonitorcablesarermlyconnected.
2.Tryusingadifferentmonitorontheserver,ortryusingthemonitorthatisbeing
testedonadifferentserver.
3.Runthediagnosticprograms.Ifthemonitorpassesthediagnosticprograms,
theproblemmightbeavideodevicedriver.
4.(Trainedservicetechnicianonly)Replacethesystemboard.
Thescreenisblank.
1.IftheserverisattachedtoaKVMswitch,bypasstheKVMswitchtoeliminateit
asapossiblecauseoftheproblem:connectthemonitorcabledirectlytothe
correctconnectorontherearoftheserver.
2.Makesurethat:
•Theserveristurnedon.Ifthereisnopowertotheserver,see“Power
problems”onpage20
.
•Themonitorcablesareconnectedcorrectly.
•Themonitoristurnedonandthebrightnessandcontrastcontrolsare
adjustedcorrectly.
•NoPOSTerrorsaregeneratedwhentheserveristurnedon.
3.Makesurethatthecorrectserveriscontrollingthemonitor,ifapplicable.
4.See“Solvingundeterminedproblems”onpage23.
Themonitorhasscreen
jitter,orthescreenimageis
wavy,unreadable,rolling,or
distorted.
1.Ifthemonitorself-testsshowthatthemonitorisworkingcorrectly,consider
thelocationofthemonitor.Magneticeldsaroundotherdevices(suchas
transformers,appliances,uorescentlights,andothermonitors)cancause
screenjitterorwavy,unreadable,rolling,ordistortedscreenimages.Ifthis
happens,turnoffthemonitor.
Attention:Movingacolormonitorwhileitisturnedonmightcausescreen
discoloration.
Movethedeviceandthemonitoratleast305mm(12inches)apart,andturnon
themonitor.
Topreventdiskettedriveread/writeerrors,makesurethatthedistancebetween
themonitorandanyexternaldiskettedriveisatleast76mm(3inches).
2.Reseatthemonitor.
3.Replacethefollowingcomponentsoneatatime,intheordershown,restarting
theservereachtime:
a.Monitor
b.(Trainedservicetechnicianonly)Systemboard
Wrongcharactersappearon
thescreen.
1.Ifthewronglanguageisdisplayed,updatetheserverrmwarewiththecorrect
language(seeUpdatingthermware).
2.Reseatthemonitor.
3.Replacethefollowingcomponentsoneatatime,intheordershown,restarting
theservereachtime:
a.Monitor
b.(Trainedservicetechnicianonly)Systemboard
18ThinkServerRD240HardwareMaintenanceManual