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Chapter 4 89
The system doesn’t power-
off.
Power source (battery pack and power adapter).
Power System Check
Hold and press the power switch for more than 4
seconds.
Charger board
System board
Battery can’t be charged. Power System Check
Battery pack
DC-DC/charger board
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 DOS or Windows,
multimedia programs, no
sound comes from the
computer.
Press Fn-F8, Speaker ON/OFF control.
Audio driver
Speaker
System board
Internal speakers make
noise or emit no sound.
Press Fn-F8, Speaker ON/OFF control.
Speaker
System board
Power-Related Symptoms
Symptom / Error Action in Sequence