Zte ZXSDR R8978 - 4.6 Parts Replacement

ZXSDRR8978UserManual
4.6PartsReplacement
4.6.1ReplacingtheZXSDRR8978
LocatetheZXSDRR8978faultsthroughobservationandanalysis,anddeterminewhether
toreplacetheZXSDRR8978.ReplacingtheZXSDRR8978willinterruptalltheservices
carriedbytheZXSDRR8978.
Prerequisite
lVerifythehardwaretypeofthefaultyZXSDRR8978.PrepareaproperZXSDR
R8978.ThespecicationsoftheproperZXSDRR8978mustbeconsistentwiththe
faultyone.
lPreparethefollowingtools.
ToolFunction
WrenchInstallsoruninstallstheRFcables
M5crossscrewdriverInstallsoruninstallstheZXSDRR8978maintenancecavity,or
fastensthescrewsandprotectiongroundingcables.
WaterprooftapeProvideswaterproofprotectionfortheRFcableconnectors
StickerMarkstheconnectionofthecablestobereplaced(afterthe
replacement,allthecablesmustbereconnectedtotheplace
wheretheywere)
Moistureproofantistatic
bagandcarton
StoresthefaultyZXSDRR8978
Steps
1.PowerofftheZXSDRR8978.
2.OpenthecoveroftheZXSDRR8978maintenancecavitybyusingtheM5screwdriver.
3.Pastealabelateachendofeveryopticalber.
4.RemovethexscrewsfromthecablecrimperbyusingtheM5screwdriver.
5.PulluptheinsulatingpartofthedualcoreDCconnectoragainstthedirectionofthe
arrowmarkedontheshell.Pullouttheconnectoranduninstallthepowercables.
6.Pressthebluecrimperoftheber,andpulltheberoutoftheconnector.
7.UsetheM5crossscrewdrivertoremovethegroundingboltandremovetheprotective
groundingcable.
8.Removeallthewaterprooftapesfromthejumpersoftheantennaport.Uninstall
thejumperfromtheZXSDRR8978antennaportbyusingthewrenchwithinsulation
protectivetreatment.
9.UninstalltheAISG/EAMcable.
4-6
SJ-20140808143736-001|2014-10-30(R1.1)ZTEProprietaryandCondential