10-2 Solving System ProblemsProblem ChecklistFirst check the items in the following list. If these items don't help, see the table thatfollows the list.! The computer is powered on and the Power LED illuminates green.! The electrical outlet to which your AC adapter is connected is working. Test theoutlet by plugging in a lamp or other electrical device.! All cables are tightly connected.! The display setting is configured correctly.! The display brightness control is adjusted properly.! If using battery power, check that the battery pack is properly inserted and fullycharged.TroubleshootingProblem ResolutionThe system does notpower on.If you are operating the system with battery power,check that the battery pack is correctly inserted. Attachthe AC adapter to recharge the battery.If you have the AC adapter attached, check that youare using a working electrical outlet.LCD screen is dark andblank.Power-saving mode has shut off the backlight. Press akeyboard key or move the mouse.The built-in LCD may not be selected. Press Fn-F3once or twice to select the LCD video mode.Screen brightness needs adjustment. Use the Fn-F8and Fn-F9 functions keys.The system entered Suspend (Windows 95/NT) modeor Standby (Windows 98) mode due to low batterypower. Plug in the AC adapter or replace the batterypack, and then press the Power button to resumeoperation.Battery power does notlast long.Use power-saving modes.Fully charge and discharge the battery several times torecondition it.Replace the battery.Information on the LCD isdifficult to see.Use the Fn-F8 and Fn-F9 functions keys to adjust thebrightness control.