Acer Extensa 5220 Service Guide for TravelMate 5320, 5720, 5720G, Extensa 5220 - Page 126

Power-Related Symptoms Symptom / Error The system doesn't power-off. Action in Sequence Power source (battery pack and power adapter). See "Power System Check" on page 103. Hold and press the power switch for more than 4 seconds. System board See "Check the Battery Pack" on page 105. Battery pack System board Battery can't be charged PCMCIA-Related Symptoms Symptom / Error System cannot detect the PC Card (PCMCIA) PCMCIA slot pin is damaged. Memory-Related Symptoms Symptom / Error Memory count (size) appears different from actual size. Action in Sequence Enter BIOS Setup Utility to execute "Load Default Settings, then reboot system. DIMM System board Action in Sequence PCMCIA slot assembly System board PCMCIA slot assembly Speaker-Related Symptoms Symptom / Error In Windows, multimedia programs, no sound comes from the computer. Internal speakers make noise or emit no sound. Power Management-Related Symptoms Symptom / Error The system will not enter hibernation Action in Sequence See "Save to Disk (S4)" on page 38. Keyboard (if control is from the keyboard) Hard disk drive System board Press Fn+oand see if the computer enters hibernation mode. Touchpad Keyboard Hard disk connection board Hard disk drive System board See "Save to Disk (S4)" on page 38. LCD cover switch System board Audio driver Speaker System board Speaker System board Action in Sequence The system doesn't enter hibernation mode and four short beeps every minute. The system doesn't enter standby mode after closing the LCD 116 Chapter 4