User's Manual

TroubleshootingChapter3:TroubleshootingtheVML750
Troubleshooting
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Thisparagraphgivesdetailsregardingpossiblemalfunctionsthatmayoccurafterfirst
timeinstallationoftheVML750,theirprobablecauseandtherecommendedcorrective
action.ForcorrectLEDindications,refertoTable3-2.
ContactMotorolaSolutionsSupportCenter(SSC)teamforfurthertroubleshootingassistanceif
necessary.Forcontactinformation,referto"MotorolaSolutionsSupportCenter"onpage-xiv.
Table3-1TroubleshootingtheVML750
MalfunctionProbableCauseCorrectiveAction
Powercableisnotproperly
connected.
1.Checkthecableconnections,connectasrequired
andturntheVML750On.
2.V erifythatthePowerLEDisblinkingred
(standbymode).
3.PressthePowerbuttontoturnOn(expectLED
behavioraccordingtoignitionstate).
VML750doesnotturnOn.
Powerbuttonwasnot
properlypressed.
1.Applypowertothemodem.
2.V erifythatthePowerLEDisblinkingred.
3.PressthePowerbuttonfor2–3sec.
4.V erifythatthePowerLEDisblinkingorange(in
"ignitionenabled"mode),orblinkinggreenandthen
solidgreen(in"ignitiondisabled"mode).
NoLAN/Ethernet
connection.
LAN/Ethernetcableisnot
connected,or,MicroUSB
cableisnotconnected.
ConnecttheLAN/Ethernetcable(referto
"LAN/EthernetCableInstallation"onpage2-18)or
theMicroUSBcable(referto"MicroUSBCable
Installation"onpage2-18)andverifythattheLAN
LEDisgreen.
NoGPSreception.GPScable(fromMain
antenna)isnotconnected.
1.ConnecttheGPScable(referto"AntennaCables
Installation(MainandDiversity)forB20LTEonly
Configuration"onpage2-17or"AntennaCables
Installation(MainandDiversity)forB20LTEonly
Configuration"onpage2-17).
2.V erifythattheGPSLEDisblinkingorangeand
thenchangestosolidgreen.
3-26802988C54-BJuly2014