Troubleshooting Procedures
2-56 [CONFIDENTIAL] PORTEGE M780 Maintenance Manual (960-809)
Check 3 The web camera/digitizer/fingerprint sensor /sw board 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 4.
Check 4 The system board may be damaged. Replace it with a new one following the
instructions in Chapter 4, Replacement Procedures.
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