Toshiba Satellite C640 Users Manual Canada; English - Page 119

Power, Overheating power down, AC power

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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 according to how the Boot Priority Options 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. Power 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. Overheating power down 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. AC power 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 6, Power and Power-Up Modes for further information. Problem Procedure AC adaptor doesn't power the computer Check the connections to make sure that the power cord/adaptor is firmly connected to the computer and a working power outlet. Check the condition of the cord and terminals. If the cord is frayed or damaged it should be replaced, while if the terminals are soiled, they should be cleaned with a clean cotton cloth. If the AC adaptor still does not power the computer, you should contact your reseller, dealer or service provider. User's Manual 8-4

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User’s Manual
8-4
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
according to how the
Boot Priority
Options
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.
Power
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.
Overheating power down
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.
AC power
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 6,
Power and Power-Up Modes
for further information.
Problem
Procedure
AC adaptor doesn’t
power the computer
Check the connections to make sure that the
power cord/adaptor is firmly connected to the
computer and a working power outlet.
Check the condition of the cord and terminals. If
the cord is frayed or damaged it should be
replaced, while if the terminals are soiled, they
should be cleaned with a clean cotton cloth.
If the AC adaptor still does not power the
computer, you should contact your reseller,
dealer or service provider.