Toshiba PRO L640 Personal Computer User Manual


 
Chapter 2 Troubleshooting Procedures
Satellite L600/L640/L645, Satellite Pro L600/Pro L640/Pro L645 Maintenance Manual (960-Q08)
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2.6 Keyboard Troubleshooting
re 1: Diagnostic Test Program Execution 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.
To check if the computer’s keyboard is malfunctioning or not, follow the troubleshooting
procedures below as instructed.
Procedu
Procedure 2: Connector and Replacement Check