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2.10 Touch Pad Troubleshooting 2 Troubleshooting Procedures
PORTEGE A100 Maintenance Manual (960-460) 2-41
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 3: Replacement Check
Procedure 1 Diagnostic Test Program Execution Check
Execute the keyboard test program, or maintenance test program, because the pointing device
test program is a component of the keyboard test program. For the operating procedure, see
Chapter 3.
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.
If the connector has come off, connect firmly and make sure the operation. If there is still an
error, go to Procedure 3.
PJ3201
Touch Pad
System Board
Procedure 3 Replacement Check
The touch pad may be damaged. Replace the touch pad.