Acer Aspire 4715Z Aspire 4315 / 4715Z Service Guide - Page 110

Power Management-Related Symptoms Symptom / Error The system doesn't resume from hibernation mode. The system doesn't resume from standby mode after opening the LCD. Battery fuel gauge in Windows doesn't go higher than 90%. System hangs intermittently. Check or do the following in sequence T See "Save to Disk (S4) on page 34. T Hard disk connection board T Hard disk drive T Mainboard T See "Save to Disk (S4) on page 34. T Mainboard T Remove battery pack and let it cool for 2 hours. T Refresh battery (continue use battery until power off, then charge battery). T Battery pack T Mainboard T Reconnect hard disk/CD-ROM drives. T Hard disk connection board T Mainboard Peripheral-Related Symptoms Symptom / Error System configuration does not match the installed devices. External display does not work correctly. USB does not work correctly Print problems. Check or do the following in sequence T Run "Load Setup Defaults" in BIOS Setup Utility, then reboot system. T Reconnect hard disk/CD-ROM/diskette drives. T Press Fn+F5 to switch to LCD or CRT T Mainboard T Mainboard T Run printer self-test. T Printer driver T Printer cable T Printer T Mainboard Keyboard/Touchpad-Related Symptoms Symptom / Error Keyboard (one or more keys) does not work. Touchpad does not work. Check or do the following in sequence T Reconnect the keyboard cable. T Keyboard T Mainboard T Reconnect touchpad cable. T Touchpad board T Mainboard 100 Chapter 4