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2 Troubleshooting 2.16 Fingerprint sensor
4. After starting Windows, Make sure that the name of Account (e.g. “TOSHIBA”), which
has been inputted in item 3 in Procedure 1 at the top of [Start].
5. Open [User Accounts] from [Control Panel]. Select [Delete an Account] in [Change an
Account] and delete the account registered for fingerprint authentication.
Procedure 4 Connector Check and Replacement Check
The finger sensor board, FDNFS is connected to the connector CN6170 on the system board
with the FDNSP FPC.
Check 1 Check the FDNSP FPC is firmly inserted to the connector CN950 on the FDNFS
board and the connector CN6170 on the System board. If not, insert it firmly. If the
finger sensor is still not functioning properly, perform Check 2.
Check 2 The FDNSP FPC may be faulty. Replace it with a new one. If the problem persists,
perform Check 3.
Check 3 The FDNFS 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.
2-62 [CONFIDENTIAL] PORTEGE R200 Maintenance Manual (960-519)