Acer Aspire 4520 Service Guide - Page 89

PCMCIA-Related Symptoms, Power Management-Related Symptoms, Symptom / Error, Action in Sequence - drivers audio

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Power-Related Symptoms Symptom / Error Battery can't be charged Action in Sequence See "Check the Battery Pack" on page 73. Battery pack System board PCMCIA-Related Symptoms Symptom / Error System cannot detect the PC Card (PCMCIA) PCMCIA slot pin is damaged. Action in Sequence PCMCIA slot assembly System board PCMCIA slot assembly 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 Speaker-Related Symptoms Symptom / Error In Windows, multimedia programs, no sound comes from the computer. Internal speakers make noise or emit no sound. Audio driver Speaker System board Speaker System board Action in Sequence Power Management-Related Symptoms Symptom / Error The system will not enter hibernation The system doesn't enter hibernation mode and four short beeps every minute. The system doesn't enter standby mode after closing the LCD The system doesn't resume from hibernation mode. The system doesn't resume from standby mode after opening the LCD. Action in Sequence See "Save to Disk (S4)" on page 45. 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 45. LCD cover switch System board See "Save to Disk (S4)" on page 45. Hard disk connection board Hard disk drive System board See "Save to Disk (S4)" on page 45. LCD cover switch System board Chapter 4 83

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Chapter 4
83
Battery can’t be charged
See “Check the Battery Pack” on page 73.
Battery pack
System board
PCMCIA-Related Symptoms
Symptom / Error
Action in Sequence
System cannot detect the PC Card (PCMCIA)
PCMCIA slot assembly
System board
PCMCIA slot pin is damaged.
PCMCIA slot assembly
Memory-Related Symptoms
Symptom / Error
Action in Sequence
Memory count (size) appears different from
actual size.
Enter BIOS Setup Utility to execute “Load Default Settings, then
reboot system.
DIMM
System board
Speaker-Related Symptoms
Symptom / Error
Action in Sequence
In Windows, multimedia programs, no sound
comes from the computer.
Audio driver
Speaker
System board
Internal speakers make noise or emit no sound.
Speaker
System board
Power Management-Related Symptoms
Symptom / Error
Action in Sequence
The system will not enter hibernation
See “Save to Disk (S4)” on page 45.
Keyboard (if control is from the keyboard)
Hard disk drive
System board
The system doesn't enter hibernation mode and
four short beeps every minute.
Press Fn+
o
and see if the computer enters hibernation mode.
Touchpad
Keyboard
Hard disk connection board
Hard disk drive
System board
The system doesn’t enter standby mode after
closing the LCD
See “Save to Disk (S4)” on page 45.
LCD cover switch
System board
The system doesn't resume from hibernation
mode.
See “Save to Disk (S4)” on page 45.
Hard disk connection board
Hard disk drive
System board
The system doesn't resume from standby mode
after opening the LCD.
See “Save to Disk (S4)” on page 45.
LCD cover switch
System board
Power-Related Symptoms
Symptom / Error
Action in Sequence