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Chapter 2 Troubleshooting Procedures
Satellite L600D/L640D/L645D, Satellite Pro L600D/Pro L640D/Pro L645D Maintenance Manual (960-Q08)
2.6 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 and Replacement Check
Procedure 1 Diagnostic Test Program Execution Check
Execute the Keyboard Test (DIAGNOSTIC TEST) and Pressed key display 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.