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Toverifyasymptom,followthestepsbelow:
1. Turnoffthecomputer.
2. Removethebatterypack.
3. ConnecttheACadapter.
4. Makesurethatpowerissuppliedwhenyouturnonthecomputer.
5. Turnoffthecomputer.
6. DisconnecttheACadapterandinstallthechargedbatterypack.
7. Makesurethatthebatterypacksuppliespowerwhenyouturnonthe
computer.
Ifyoususpectapowerproblem,seetheappropriateoneofthefollowingpower
supplycheckouts:
•“CheckingtheIdeaTabACCharger”onpage21
•“Checkingtheinternalbatterystatus”onpage21
Checking the IdeaTab AC Charger
WhenyouusetheIdeaTabACChargertochargethetabletbutnopoweris
charged,seetheinstructionsinthistopictochecktheIdeaTabACCharger.
TochecktheIdeaTabACCharger,dothefollowing:
1. Disconnectthemicro‐USBcablefromthetablet.
2. MeasuretheoutputvoltageacrosstheconnectormarkedBofthemicro‐USB
cable.Refertothefollowingfigure:
Note:Theoutputvoltageacrosspin3ofthemicro‐Bconnectormightbe
differentfromtheoneyouareservicing.
3. Ifthevoltageisnotcorrect,replacethemicro‐USBcable.
4. Ifthevoltageisacceptable,replacethesystemboard.
Checking the internal battery status
Tocheckthebatterystatusofthetablet,doeitherofthefollowing:
•Approximate information about the battery status
Gettheapproximatestatusofthebatteryatanytimebycheckingthebattery
statusicononthesystembarintheupper‐rightcornerofthescreen.The
shorterthegreenbaris,thelessthebatterypowerremains.
•Accurate information about the battery status
Togettheaccurateinformationaboutthebatterystatusofthetablet,dothe
following:
Power system checkout
Pin Voltage (V dc)
1Ground
20
3+5