Toshiba L750D User Manual

User’s Manual

8-4

Troubleshooting

While booting up the computer, self test is executed automatically and the 
TOSHIBA logo is displayed on the screen.
This message remains on the screen for a few seconds.
If the self test is successful, the computer tries to load the operating system 

according to how the Boot Priority option is set within the TOSHIBA HW 

Setup program.
If any of the following conditions are present, the self test has failed:

■

The computer stops and does not proceed to display information or 

messages except for the TOSHIBA logo.

■

Random characters appear on the screen and the system does not 

function normally.

■

The screen displays an error message.

In these instances, turn off the computer, check all cable connections and 

then restart it - if the self test fails again, contact your reseller, dealer or 

service provider.

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.
This section provides checklists for AC power and the battery. If you cannot 

resolve a problem after following them, the cause may lie with another 

power related resource - in such an instance you should contact your 

reseller, dealer or service provider.

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.

Computer shuts down 

and DC IN indicator 

blinks amber 

Leave the computer off until the DC IN indicator 

stops blinking.

temperature even though the DC IN indicator stops blinking.