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Chapter 4 85
Indicator-Related Symptoms
Symptom / Error Action in Sequence
Indicator incorrectly remains off or on, but
system runs correctly
Reconnect the inverter board
Inverter board
Main Board
Power-Related Symptoms
Symptom / Error Action in Sequence
Power shuts down during operation Power source (battery pack and power adapter). See “Power
System Check” on page 79.
Battery pack
Power adapter
Hard drive & battery connection board
Main Board
The system doesn’t power-on. Power source (battery pack and power adapter). See “Power
System Check” on page 79.
Battery pack
Power adapter
Hard drive & battery connection board
Main Board
The system doesn’t power-off. Power source (battery pack and power adapter). See “Power
System Check” on page 79.
Hold and press the power switch for more than 4 seconds.
Main Board
Battery can’t be charged See “Check the Battery Pack” on page 80.
Battery pack
Main Board
PCMCIA/Smart Card-Related Symptoms
Symptom / Error Action in Sequence
System cannot detect the PC Card (PCMCIA) PCMCIA/Smart Card slot assembly
Main Board
System cannot detect the Smart Card Smart Card
PCMCIA/Smart Card slot assembly
Main Board
PCMCIA/Smart Card slot pin is damaged. PCMCIA/Smart Card 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
Main Board
Speaker-Related Symptoms
Symptom / Error Action in Sequence
In Windows, multimedia programs, no sound
comes from the computer.
Audio driver
Speaker
Main Board
Internal speakers make noise or emit no
sound.
Speaker
Main Board