Power – Toshiba Satellite Pro U400 User Manual
Page 133
User’s Manual
9-4
Troubleshooting
Power
When the computer is not plugged into an AC outlet, the battery pack is the
primary power source. However, your computer has a number of other
power resources, including an intelligent power supply and a Real Time
Clock battery. These resources are interrelated and any one could affect
apparent power problems. This section provides checklists for AC power
and the battery. If you cannot resolve a problem after following them, the
cause could lie with another power resource. In such a case, contact your
dealer.
Overheating power down
If the computer's internal temperature becomes too high, the computer will
automatically enter Hibernation Mode or Sleep Mode and shut down. If the
computer has reached room temperature and still does not start, or if it
starts but shuts down quickly contact your dealer.
AC power
If you have trouble turning on the computer with the AC adaptor connected,
check the Battery indicator. Refer to Chapter 6,
for more information.
Battery
If you suspect a problem with the battery, check the Battery indicator. For
information on indicator and battery operation refer to Chapter 6,
Problem
Procedure
AC adaptor doesn’t
power the computer
Check the connections. Make sure the cord is
firmly connected to the computer and a power
outlet.
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.
Problem
Procedure
Battery doesn't power
the computer
The battery may be discharged. Connect the AC
adaptor to charge the battery.