Toshiba A1 Manual Do Utilizador

To determine if the computer’s keyboard is functioning properly, perform the following 
procedures. Start with Procedure 1 and continue with the other procedures as instructed. 

Procedure 1:  Diagnostic Test Program Execution Check 
Procedure 2:  Connector Check and Replacement Check 

Execute the Keyboard Test in the Diagnostic Program. Refer to Chapter 3, Tests and 
Diagnostics for more information on how to perform the test program. 

If an error occurs, go to Procedure 2. If an error does not occur, the keyboard is functioning 
properly. 

The keyboard or system board may be disconnected or damaged. Disassemble the computer 
following the steps described in Chapter 4, Replacement Procedures and perform the 
following checks: 

Check 1  Make sure the keyboard cable is firmly connected to the system board. 

System Board

 

If the connection is loose, reconnect firmly and repeat Procedure 1. If there is still 
an error, go to Check 2. 

Check 2  The keyboard may be damaged. Replace it with a new one following the 

instructions in Chapter 4, Replacement Procedures. If the problem still exists, 
perform Check 3. 

Check 3  The system board may be damaged. Replace it with a new one following the 

instructions in Chapter 4, Replacement Procedures.