Samsung NP540U3C - Main System

4.Troubleshooting
4.3.2.MainSystem
#1.Thesystemisnotturnedon.
1
CheckiftheACadapterLEDislitandiftheadapteris
properlyconnectedtothesystem.
ChecktheadapterLED.
2
IftheACadapterisnotconnected,checkthecharge
statusofthebattery.Evenifthebatteryischarged,if
theremainingbatterychargeistoolow,thesystemmay
notbeturnedon.
InnerCellBatterytype
Can’tcheckexternalmeter
3
CheckifthereareanyaliensubstancesinthePower
switch.
ifhave,changetheLED
4ReplaceMainBoardCheckoperatingornot.
#2.thesystemdoesnotbootorimmediatelyturnsoffafterbeingturnedon
1
Sincethismaybeashortcircuitinthesystem.Disconnectthepowerimmediately,disassemblethe
systemandcheckifthereareanyconductingalien
objectssuchasascrewinside.
2
ChecktheconnectionstatusbetweentheCPUandthe
RHE.
3Replacethememorymodule.*Checkifitisoutoforder.
4RTCReset.*Checkifitisoutoforder.
5ReplaceMainBoard.*Checkifitisoutoforder.
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