Toshiba R600-S4213 Maintenance Manual - Page 114

2 Troubleshooting Procedures 2.17 Fingerprint sensor Troubleshooting Procedure 4 Connector Check and Replacement Check The connection of the cable and board may be defective. Otherwise, they may be faulty. Disassemble the computer following the steps described in Chapter 4, Replacement Procedures, and perform the following checks: Check 1 Make sure the cables are firmly connected to the Finger/pad board and system board. If the connection is loose, reconnect firmly and repeat Procedure 1. If the problem still occurs, go to Check 2. Check 2 Fingerprint board or the cable may be faulty. Replace it with a new one following the instructions in Chapter 4, Replacement Procedures. If the problem still occurs, perform Check 3. Check 3 System board may be faulty. Replace it with a new one following the instructions in Chapter 4, Replacement Procedures. 2-68 [CONFIDENTIAL] PORTEGE R600 Maintenance Manual (960-709)