2.4 System Board

2 Troubleshooting

Procedure 1 Message Check

When the power is turned on, the system performs the self-diagnostic Power On Self Test (POST) embedded in the BIOS ROM. The POST tests and initializes each IC on the system board.

If an error message appears on the display, perform Check 1.

If there is no error message, go to Procedure 2.

If there is no error beep code tone out, go to Procedure 3

If Toshiba MS-DOS or Toshiba Windows 95/98/NT/2000 is loaded normally, go to Procedure 5.

Check 1 If the following error message is displayed on the screen, press the F1 key as prompted. These errors occur when the system configuration preserved in the RTC memory (generally called CMOS memory) does not match the actual configuration or when the data is lost.

If you press the F1 key as prompted by the message, the TSETUP screen appears to set the system configuration. If the error message appears frequently when the power is turned on, replace the RTC battery. If any other error message is displayed, perform Check 2.

*** Bad RTC battery ***

Check system. Then press [F1] key

Check 2 If the following error message is displayed on the screen,

 

press any key as prompted by the message.

 

The error message appears when either data stored in RAM to be resumed is

 

lost because the battery has been exhausted or the system board is faulty.

 

If any other error message displays, perform Check 3

 

RESUME FAILURE and PRESS ANY KEY TO CONTINUE.

Check 3

The POST checks the system board. When the POST detects an error, the

 

system stops

 

or a error beep code tone out

 

or an error POST message appears.

TECRA S1 Maintenance Manual

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Image 48
Toshiba TECRA S1 manual System Board Troubleshooting, Procedure 1 Message Check