Toshiba 960-498 Manuale Utente

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 test for keyboard of ONLY ONE 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 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 securely connected to the 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 or its cable 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.