Power Sources - Toshiba T2150CD Series Manual

Memory Test xxxxKB
Test Complete
This message remains on the screen for a few seconds while the computer tests its memory.
If the self test is successful, a short beep sounds and the computer tries to load MS-DOS.
Depending on how the Boot Priority is set in the TSETUP program, 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 updating the memory counter and does not proceed to display
information or messages.
A beep sounds, and after a few seconds no new messages appear.
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 and TSETUP values. If the test fails
again, contact your dealer.
If the self test ends but you do not hear a beep, check TSETUP to see if the speaker has
been disabled. If it has not, your computer's speaker may be faulty. A faulty speaker does
not affect normal computer operation and can be fixed by your local dealer.

Power Sources

When the computer is not plugged into an AC power outlet, the battery pack is the primary
power source. However, your computer has a number of other power resources, including
intelligent power supply, Real Time Clock battery and Backup battery. These resources are
interrelated and any one could affect apparent power problems. This section provides check
lists for AC connections 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.
Battery
If you suspect a problem with the battery, check the AC IN LED as well as the battery LED.
For information on indicators and battery operation see
Modes.
Problem
Battery doesn't power the computer
Chapter 7, Power and Power-Up
Procedure
The battery may be discharged. Connect the AC
power cord to charge the battery.