AC adaptor not
connected
Monitoring of power condition
As shown in the below table, the DC IN/Battery and Power indicators on
the system indicator alert you to the computer's operating capability and
battery charge status.
DC IN/Battery indicator
Check the DC IN/Battery indicator to determine the status of the battery
pack and the power status with the AC adaptor connected. The following
indicator conditions should be noted:
Flashing amber
Amber
Green
No light
User's Manual
Battery charge is
above low
battery trigger
point
Battery charge is
below low
battery trigger
point
Battery charge is
exhausted
No battery
installed
The battery charge is low, the AC adaptor must
be connected in order to recharge the battery.
Or, Indicates a problem with the power supply.
You should initially try plugging the AC adaptor
into another power outlet - if it still does not
operate properly, you should contact your
reseller or dealer.
Indicates the AC adaptor is connected and the
battery is charging.
Indicates the AC adaptor is connected and the
battery is fully charged.
Under any other conditions, the indicator does
not light.
NB500/NB520/NB550D
Power on
• Operates
• LED: off
• Operates
• LED: flashes
amber
Computer shuts
down
• No operation
• LED: off
Power off
(no operation)
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