Toshiba M500 ST5405 - Satellite - Core 2 Duo 2.13 GHz Maintenance Manual page 88

2 Troubleshooting Procedures
Check 5 The 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 8.
Check 6 Make sure the SW cable is firmly connected to CN3260 on the system board.
If the connection is loose, reconnect firmly. If there is still an error, go to Check 7.
Check 7 The SW membrane 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 8 The system board may be damaged. Replace it with a new one following the
instructions in Chapter 4, Replacement Procedures.
2-46 [CONFIDENTIAL]
2.7 Keyboard and Touch pad Troubleshooting
PORTÉGÉ M500 Maintenance Manual (960-559)