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•
If the voltage is not correct, replace the power adapter.
•
If the voltage is within the range, do the following:
–
Replace the system board.
–
If the problem is not corrected, see
157.
–
If the power-on indicator does not light up, check the power adapter's
power cord for correct continuity and installation.
•
If the operational charge does not work,
141.
Important
An audible noise from the power adapter does not always
indicate a defect.
Check the battery pack
To check the battery pack using software:
1
Open Power Management in the Windows Control Panel.
2
In Power Meter, make sure that the parameters shown for Current Power
Source and Total Battery Power Remaining are correct.
3
Repeat the steps 1 and 2, for both battery and adapter. This helps you identify
first the problem is on recharging or discharging.
To check the battery pack using hardware:
1
Turn off the notebook.
2
Remove the battery pack and measure the voltage between battery terminals
1 (+) and 6 (ground).
3
If the voltage is still less than 7.5 Vdc after recharging, replace the battery.
Important
To check the battery charge operation, use a discharged battery
pack or a battery pack that has less than 50% of the total power
remaining when installed in the notebook.
If the battery status indicator does not light up, remove the battery pack and let
it return to room temperature. Re-install the battery pack.
If the charge indicator still does not light up, replace the battery pack. If the charge
indicator still does not light up, replace the DC/DC charger board.
"Undetermined problems" on page
see "Check the battery pack" on page
141
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