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2 Troubleshooting Procedures 2.10 Touch Pad Troubleshooting
2-40 PORTEGE A200 Maintenance Manual (960-499)
2.10 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 Check and Replacement Check
Procedure 1 Diagnostic Test Program Execution Check
Execute the touch pad test in the Diagnostic Program. Refer to Chapter 3, Tests and
Diagnostics for more information on how to perform the test program.
If any error is detected, perform Procedure 2. The pointing device is operating normally if no
error is detected.
Procedure 2 Connector Check and Replacement Check
The touch pad is connected to the system board with a flexible cable. This cable may have
come off the connector or the connector may have come off the system board. Disassemble
the computer and check the cable connections. See Chapter 4 for the disassembly procedure.
Check 1 Make sure the touch pad cable is securely connected to the connector PJ3240 on
the system board.
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 PAD switch 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.