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and attempt to
power the unit up.
If the unit powers
up, replace the
inverter board.
b. Disconnect the
display cable from
the display panel
and power the unit
up. If the unit
powers up, replace
the display panel.
c. Replace the display
cable.
3. Replace the system
board.
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Table 5-13. Solving System Start Problems
===========================================================================
Problem Probable Cause Solution(s)
===========================================================================
System powers up (LEDs Bad contacts Replace system board.
on) but it does not between processor
begin POST. board and system
board.
------------------------------------------------
Defective Replace system board.
processor board.
------------------------------------------------
Defective system Replace system board.
board.
===========================================================================
Table 5-14. Solving Standby Problems
===========================================================================
Problem Probable Cause Solution(s)
===========================================================================
The power/standby button Defective keyboard Replace the keyboard
is pressed, but the unit assembly. assembly.
does not go into ------------------------------------------------
standby. Defective system Replace the system board.
board.
===========================================================================
Table 5-15. Solving Battery Problems
===========================================================================
Problem Probable Cause Solution(s)
===========================================================================
Battery indicator Low battery beeps Use Power Management to
flashes to indicate low were turned off. turn on the low battery
battery condition, but warning beeps.
computer does not beep. ------------------------------------------------
Volume is turned Press the Fn + F5 keys.
on/off.
---------------------------------------------------------------------------
Battery indicator Battery pack is No action is necessary.
doesn't light and already charged.
battery pack won't fast ------------------------------------------------
charge. Battery pack was Allow time for the battery