Acer Aspire 4315 Aspire 4315 / 4715Z Service Guide - Page 109

Power-Related Symptoms Symptom / Error The system doesn't power-off. Battery can't be charged Check or do the following in sequence T Power source (battery pack and power adapter). See "Power System Check" on page 89. T Hold and press the power switch for more than 4 seconds. T Mainboard T See "Check the Battery Pack" on page 89. T Battery pack T Mainboard PCMCIA-Related Symptoms Symptom / Error System cannot detect the PC Card (PCMCIA) PCMCIA slot pin is damaged. Check or do the following in sequence T PCMCIA slot assembly T Mainboard PCMCIA slot assembly Memory-Related Symptoms Symptom / Error Check or do the following in sequence Memory count (size) appears different from actual size. T Run "Load Setup Defaults" in BIOS Setup Utility, then reboot system. T DIMM T Mainboard Speaker-Related Symptoms Symptom / Error In Windows, multimedia programs, no sound comes from the computer. Internal speakers make noise or emit no sound. Check or do the following in sequence T Audio driver T Speaker T Mainboard T Speaker T Mainboard Power Management-Related Symptoms Symptom / Error Check or do the following in sequence The system will not enter hibernation T See "Save to Disk (S4) on page 34. T Keyboard (if control is from the keyboard) T Hard disk drive T Mainboard The system doesn't enter hibernation mode T Press Fn+o and see if the computer enters hibernation and four short beeps every minute. mode. T Touchpad T Keyboard T Hard disk connection board T Hard disk drive T Mainboard The system doesn't enter standby mode after closing the LCD T See "Save to Disk (S4) on page 34. T Mainboard Chapter 4 99