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2.18 Fingerprint sensor Troubleshooting 2 Troubleshooting
Procedure 4 Connector Check and Replacement Check
The Fingerprint sensor cable is connected to the connector CN9560 on the Fingerprint sensor
board and connector CN9540 on the system board.
Check 1 Check the Fingerprint sensor cable is firmly connected to the connector CN9560
on the Fingerprint sensor board and connector CN9540 on the system board. If not,
connect it firmly. If the Fingerprint sensor is still not functioning properly, perform
Check 2.
Check 2 The Fingerprint sensor cable may be faulty. Replace it with a new one. If the
problem persists, perform Check 3.
Check 3 The Fingerprint sensor board may be faulty. Replace it with a new one. If the
problem persists, perform Check 4.
Check 4 The system board may be faulty. Replace it with a new one following the steps in
Chapter 4.
Satellite R20/TECRA M7 Maintenance Manual (960-572) [CONFIDENTIAL] 2-65