Lenovo A1000L General checkout

General checkout

Toverifyasymptom,followthestepsbelow:

1. Turnoffthecomputer.

2. Removethebatterypack.

3. ConnecttheACadapter.

4. Makesurethatpowerissuppliedwhenyouturnonthecomputer.

5. Turnoffthecomputer.

6. DisconnecttheACadapterandinstallthechargedbatterypack.

7. Makesurethatthebatterypacksuppliespowerwhenyouturnonthe

computer.

Ifyoususpectapowerproblem,seetheappropriateoneofthefollowingpower

supplycheckouts:

•“CheckingtheIdeaTabACCharger”onpage21

•“Checkingtheinternalbatterystatus”onpage21

WhenyouusetheIdeaTabACChargertochargethetabletbutnopoweris

charged,seetheinstructionsinthistopictochecktheIdeaTabACCharger.

TochecktheIdeaTabACCharger,dothefollowing:

1. Disconnectthemicro‐USBcablefromthetablet.

2. MeasuretheoutputvoltageacrosstheconnectormarkedBofthemicro‐USB

cable.Refertothefollowingfigure:

Note:Theoutputvoltageacrosspin3ofthemicro‐Bconnectormightbe

differentfromtheoneyouareservicing.

3. Ifthevoltageisnotcorrect,replacethemicro‐USBcable.

4. Ifthevoltageisacceptable,replacethesystemboard.

Tocheckthebatterystatusofthetablet,doeitherofthefollowing:

•Approximate information about the battery status

Gettheapproximatestatusofthebatteryatanytimebycheckingthebattery

statusicononthesystembarintheupper‐rightcornerofthescreen.The

shorterthegreenbaris,thelessthebatterypowerremains.

•Accurate information about the battery status

Togettheaccurateinformationaboutthebatterystatusofthetablet,dothe

following:

Pin Voltage (V dc)

1Ground

3+5