2 Troubleshooting Procedures  2.7 Keyboard Troubleshooting 
2-42  [CONFIDENTIAL]  Satellite Pro S300, TECRA A10/S10/P10 Maintenance Manual (960-684) 
2.7 Keyboard Troubleshooting 
To check if the computer’s keyboard is malfunctioning or not, follow the troubleshooting 
procedures below as instructed. 
Procedure 1:  Diagnostic Test Program Execution Check 
Procedure 2:  Connector Check and Replacement Check 
Procedure 1  Diagnostic Test Program Execution Check 
Execute the Keyboard Test (DIAGNOSTIC TEST) and Pressed key display test (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, keyboard is functioning 
properly.