4Troubleshooting
�AllindicatorsareOffwhentheZXHNH389AequipmentispoweredOn.
FirstmakesurethatyouhaveinsertedthepoweradapteroftheZXHN
H389Aintoaworkingpowersocket.IftheindicatorsarestillOffaftercon-
rmationoftheaboveitems,maybethehardwareisdamaged.Youmay
contactlocaloperatorformaintenance.Neverdismantletheequipmentby
yourself.
�Sometimes,theDSLuserscannotaccesstotheInternetnormally
FirstcheckwhethertheZXHNH389Aisinthenormalstate(Checkthein-
dicatorsaccordingtothisusermanual).Ifyes,thecomputerorapplication
networkmaybefaulty.ThisisunrelatedwithDSL.IftheZXHNH389Ais
abnormal,checkthestatusofindicatorsonebyonetoremovethefault.
Itissuggestedtocheckthefollowingitemsbeforeseekinghelpfromoper-
ators:
i.TheDSLtelephonecableconnectorsareproper.
ii.TheDSLisawayfromthepowercableandlarge-powerelectronicde-
vices.
iii.Notelephoneextensionsandfaxmachinesareconnectedbetweenthe
DSLincominglineandsplitter.
iv.Thesplitterhasbeeninstalledcorrectly.
v.TheZXHNH389Ahasgoodheatdissipationratio.