Toshiba NB505 User Manual

User’s Manual

6-4

NB500/NB505/NB520/NB525/NB550D/NB555D Series

Make sure you attached the AC adaptor and power cord/cable properly or 

installed a charged battery.
Press and hold the power button for at least 10 seconds.
If you are using the AC adaptor, check that the wall outlet is working by 

plugging in another device, such as a lamp.
Verify that the computer is on by looking at the ON/OFF indicator.
If the indicator is glowing, the computer is on. Also, try turning the computer 

off and then on.
If you are using an AC adaptor, verify that the computer is receiving power 

from the external power source by looking at the AC power light. If the 

indicator is glowing, the computer is connected to a live external power 

source.

This section discusses problems caused by your computer’s hardware or 

attached peripherals. Basic problems may occur in the following areas:

When the computer is not plugged into an AC power outlet, the battery 

pack is the primary power source. However, your computer also has a 

number of other power resources, including an intelligent power supply and 

a Real Time Clock (RTC) battery, all of which are interrelated with any one 

having the ability to produce apparent power problems.

If the processor's temperature reaches an unacceptably high level with 

either setting, the computer will automatically shuts down to prevent any 

damage - in this instance all unsaved data in memory will be lost.

If you have trouble turning on the computer with the AC adaptor connected 

you should check the status of the DC IN/Battery indicator. Please refer to 

Chapter 5, 

 for further information.

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Power 

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Keyboard

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Internal display panel

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Hard disk drive

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Memory media card

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Touch Pad

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USB device

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Sound system

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External monitor

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LAN

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Wireless LAN

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Bluetooth