Acer TRAVELMATE 8172 Service Manual page 186

The system doesn't power-off.
Battery can't be charged.
PCMCIA-Related Symptoms
System cannot detect the PC Card (PCMCIA).
PCMCIA slot pin is damaged.
Memory-Related Symptoms
Memory count (size) appears different from
actual size.
Speaker-Related Symptoms
In Windows, multimedia programs, no sound
comes from the computer.
Internal speakers make noise or emit no
sound.
Power Management-Related Symptoms
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.
178
Symptom / Error
Symptom / Error
Symptom / Error
Symptom / Error
Symptom / Error
Action in Sequence
Power source (battery pack and power
adapter). See "Power System Check" on page
167.
Hold and press the power switch for more than
4 seconds.
System board
See "Check the Battery Pack" on page 167.
Battery pack
System board
Action in Sequence
PCMCIA slot assembly
System board
PCMCIA slot assembly
Action in Sequence
Enter BIOS Setup Utility to execute "Load
Default Settings", then reboot system.
DIMM
System board
Action in Sequence
Audio driver
Speaker
System board
Speaker
System board
Action in Sequence
Keyboard (if control is from the keyboard)
Hard disk drive
System board
o
Press Fn+ and see if the computer enters
hibernation mode.
Touchpad
Keyboard
Hard disk connection board
Hard disk drive
System board
LCD cover switch
System board
Chapter 4