Acer Aspire 4315 Service Manual page 109

Power-Related Symptoms
Symptom / Error
The system doesn't power-off.
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.
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
The system doesn't enter hibernation mode
and four short beeps every minute.
The system doesn't enter standby mode
after closing the LCD
Chapter 4
Check or do the following in sequence
Power source (battery pack and power adapter). See "Power
System Check" on page 89.
Hold and press the power switch for more than 4 seconds.
Mainboard
See "Check the Battery Pack" on page 89.
Battery pack
Mainboard
Check or do the following in sequence
PCMCIA slot assembly
Mainboard
PCMCIA slot assembly
Check or do the following in sequence
Run "Load Setup Defaults" in BIOS Setup Utility, then reboot
system.
DIMM
Mainboard
Check or do the following in sequence
Audio driver
Speaker
Mainboard
Speaker
Mainboard
Check or do the following in sequence
See "Save to Disk (S4) on page 34.
Keyboard (if control is from the keyboard)
Hard disk drive
Mainboard
o
Press Fn+ and see if the computer enters hibernation
mode.
Touchpad
Keyboard
Hard disk connection board
Hard disk drive
Mainboard
See "Save to Disk (S4) on page 34.
Mainboard
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