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Troubleshooting Procedures
PORTEGE M780 Maintenance Manual (960-809) [CONFIDENTIAL] 2-41
2.8 Touch pad Troubleshooting
To check if the computer’s touch pad 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
2.8.1 Procedure 1 Diagnostic Test Program Execution Check
Execute the Touch pad 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, touch pad is functioning
properly.