System information

Tocheckwhetherthebatterychargesproperlyduringoperation,dothefollowing:

1.Dischargethebatteryuntiltheremainedbatterypowerislessthan50%.

2.Connectthecomputertoacpowertochargethebattery.IfthebatterystatusiconintheWindows

notiﬁcationareaindicatesthatthebatteryisnotcharging,removethebatteryandletitreturntoroom

temperature.

3.Reinstallthebattery.Ifthebatteryisstillnotcharging,replacethebatterypack.

4.Checkthebatterystatusiconagain.Ifthesameerrorstillexists,replacethesystemboard.

Checkingthecoin-cellbattery

Tocheckthecoin-cellbattery,dothefollowing:

1.Removethecoin-cellbattery.See“1080Coin-cellbattery”onpage65.

2.Measurethevoltageofthecoin-cellbattery.Seethefollowingillustration.

Wire

Voltage(Vdc)

Red+2.5to+3.2

Black

Ground

•Ifthevoltageiscorrect,replacethesystemboard.

•Ifthevoltageisnotcorrect,replacethecoin-cellbattery.

•Ifthecoin-cellbatterydischargesquicklyafterreplacement,replacethesystemboard.

28HardwareMaintenanceManual