Toshiba M645-S4080 Maintenance Manual page 81

2Troubleshooting Procedures
The Finger printer board or system board may be the reason of a finger printer fault. Either of
these two components may be damaged. To determine if the computer's Finger printer is
functioning properly, perform the following procedures. Figure 2-20 outlines the process.
Start with Procedure 1 and continue with the other procedures as instructed.
Procedure 1: windows application test
Procedure 2: Connector and replacement check
Procedure 1
Use windows application to check device can work fine or not .If an error is located, go to
Procedure 2. If an error is not located, the Finger printer system is functioning properly.
Procedure 2
The Finger printer board or system board may be disconnected or damaged. Disassemble the
computer following the steps described in Chapter 4, Replacement Procedures, and perform
the following checks.
Check 1 Make sure that the Finger printer board FFC is securely slotted into the system
board. If the problem persists, go to Check 2.
Check 2 The Finger printer board may be damaged. Replace it with a new one following
the instructions in Chapter 4. If the problem still exists, perform Check 3.
Check 3 The system board may be damaged. Replace it with a new one following the
instructions in Chapter 4.
Satellite/Satellite Pro M600/M640/M645/M647 Series/Dynabook TX/AX Series Maintenance Manual
Downloaded from LpManual.com Manuals
windows application test
Connector and replacement check
49