2.7 Keyboard and Touch pad Troubleshooting

2 Troubleshooting Procedures

Procedure 2 Connector Check and Replacement Check

The keyboard, touch pad or sensor/switch board may be disconnected or damaged. Disassemble the computer following the steps described in Chapter 4, Replacement Procedures, and perform the following checks:

1.If the keyboard malfunctions, start with Check 1.

2.If the touch pad malfunctions, start with Check 3.

3.If the SW membrane malfunctions, start with Check 6.

Check 1 Make sure the keyboard cable is securely connected to CN3230 on the system board.

If the connection is loose, reconnect firmly. If there is still an error, go to Check 2.

Check 2 The keyboard or its 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 8.

Check 3 Make sure the touch pad cable is firmly connected to CN3240 on the system board.

If the connection is loose, reconnect firmly. If there is still an error, go to Check 4.

Check 4 The touch pad may be damaged. Replace it with a new one following the instructions in Chapter 4, Replacement Procedures. If the problem still exists, perform Check 5.

PORTÉGÉ M500 Maintenance Manual (960-559)

[CONFIDENTIAL]

2-45

Page 87
Image 87
Toshiba SATELLITE U200 manual Procedure 2 Connector Check and Replacement Check