Toshiba PRO L300D user manual Overheating power down, AC power, Problem Procedure

Troubleshooting

This message remains on the screen for a few seconds.

If the self test is successful, the computer tries to load the operating system.

Depending on how the Boot Priority is set in the Hardware Setup, the computer tries to load first from drive A then from drive C, or first from drive C then from drive A.

If any of the following conditions are present, the self test failed:

■The computer stops and does not proceed to display information or messages.

■Random characters appear on the screen, and the system does not function normally.

■The screen displays an error message.

Turn off the computer and check all cable connections. If the test fails again, contact your dealer.

Power

When the computer is not plugged into an AC adaptor, the battery pack is the primary power source. However, your computer has a number of other power resources, including intelligent power supply and Real Time Clock battery. These resources are interrelated and any one could affect apparent power problems. This section provides check lists for AC adaptor and the main battery. If you cannot resolve a problem after following them, the cause could lie with another power resource. In such case, contact your dealer.

Overheating power down

If the computer’s internal temperature becomes too high, the computer will automatically shut down.

AC power

If you have trouble turning on the computer with the AC adaptor connected, check the DC IN indicator. Refer to Chapter 6, Power and Power-up Modes for more information.

Problem	Procedure
AC adaptor doesn’t	Check the connections. Make sure the cord is
power the computer	firmly connected to the computer and a power
(DC IN indicator does	outlet.
not glow green)
	Check the condition of the cord and terminals. If
	the cord is frayed or damaged, replace it. If the
	terminals are soiled, wipe them with cotton or a
	clean cloth.
	If the AC adaptor still does not power the
	computer, contact your dealer.

User’s Manual 9-4