General checkout
21
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. DisconnectthemicroUSBcablefromthetablet.
2. MeasuretheoutputvoltageacrosstheconnectormarkedBofthemicroUSB
cable.Refertothefollowingfigure:
Note:Theoutputvoltageacrosspin3ofthemicroBconnectormightbe
differentfromtheoneyouareservicing.
3. Ifthevoltageisnotcorrect,replacethemicroUSBcable.
4. Ifthevoltageisacceptable,replacethesystemboard.

Checking the internal battery status

Tocheckthebatterystatusofthetablet,doeitherofthefollowing:
Approximate information about the battery status
Gettheapproximatestatusofthebatteryatanytimebycheckingthebattery
statusicononthesystembarintheupperrightcornerofthescreen.The
shorterthegreenbaris,thelessthebatterypowerremains.
Accurate information about the battery status
Togettheaccurateinformationaboutthebatterystatusofthetablet,dothe
following:

Power system checkout

Pin Voltage (V dc)
1Ground
20
3+5
12 3 (5V)