Troubleshooting and Repair 6-11
Problem or Symptoms
Corrective Actions
Display on the LCD is
unreadable
Adjust the brightness and contrast display controls.
Check if installed VGA driver is correct and resolution is set according
to LCD size and type.
Check if the LCD cables are inserted properly. Check also connections
inside the LCD panel.
Check the VGA controller chip on the motherboard if there is any cold
or loosed soldering.
Replace the motherboard.
LCD screen does not show
display
Check the LED Status Bar if Power Saving mode is activated. Press
any key or press the power button to resume operation and display.
Check if the display output is switched to the external monitor.
Check if the Contrast level is set to minimum.
Check if there is power.
Check if LCD cables are disconnected or loosed.
Replace LCD Inverter board found inside the LCD Panel.
Battery Power does not last
or does not read properly
under Win95/Win98
Make sure that the power management options under BIOS Setup are
enabled and set properly.
Recharge the battery pack for at 3 least hours before using again.
Discharge and recharge the battery twice (Battery Low-Low Suspend
Off) to allow more accurate reading of battery meter under Windows 95
or Windows 98.
Replace the battery pack.
System halts during boot
sequence
Check condition of selected bootload device (diskette or hard disk) for
bad boot track or incorrect OS files.
Try booting from a new bootable diskette and recopy or repartition hard
disk.
Check for any BIOS error messages on the display.
Replace motherboard.
I/O processing malfunctions
Check the connections of all internal devices.
Replace motherboard.
Diskette drive does not work
Check if FDD option is DISABLED under BIOS Setup program.
Check if floppy drive cable is connected properly.
Check diskette type if correct and not faulty.
Replace diskette drive.
Replace motherboard.