Acer Aspire 4920, Руководство по обслуживанию

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Chapter 4 109
The system doesn’t power-off.
T
Power source (battery pack and power adapter). See “Power
System Check” on page 99.
T
Hold and press the power switch for more than 4 seconds.
T
Mainboard
Battery can’t be charged
T
See “Check the Battery Pack” on page 99.
T
Battery pack
T
Mainboard
PCMCIA-Related Symptoms
Symptom / Error Check or do the following in sequence
System cannot detect the PC Card
(PCMCIA)
T
PCMCIA slot assembly
T
Mainboard
PCMCIA slot pin is damaged. 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 Check or do the following in sequence
In Windows, multimedia programs, no
sound comes from the computer.
T
Audio driver
T
Speaker
T
Mainboard
Internal speakers make noise or emit no
sound.
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 44.
T
Keyboard (if control is from the keyboard)
T
Hard disk drive
T
Mainboard
The system doesn't enter hibernation mode
and four short beeps every minute.
T
Press Fn+
o
and see if the computer enters hibernation
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 44.
T
Mainboard
Power-Related Symptoms
Symptom / Error Check or do the following in sequence
SG_Aspire4920_Book.book Page 109 Monday, May 28, 2007 6:49 PM