2.9 Touch Pad Troubleshooting 2 Troubleshooting Procedures
2.9 Touch Pad Troubleshooting To determine whether the Touch Pad is faulty or not, perform the following procedures:
Procedure 1: Diagnostic Test Program Execution Check
Procedure 2: Connector and Cable Check
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.
Procedure 2 Connector Check & Replacement Check
Check 1 Make sure the touch pad cable is firmly connected to the system board.
Touch pad <System board>
CN3240
If the connection is loose, reconnect firmly and repeat Procedure 1. If there is
still an error, go to Check 2.
Check 2 The touch pad or touch pad 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.
Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 2-41