Toshiba A7 PTA71C-LL001E Users Manual Canada; English - Page 190

User's Manual 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 mes- sages. ❑ 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. 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 power the computer (DC IN indicator does not glow green) Check the connections. Make sure the cord is firmly connected to the computer and a power outlet. TROUBLESHOOTING 9-4