Toshiba Satellite M640 Maintenance Manual page 141

3 Tests and Diagnostics
For example: If you want to set MIC function, please press "a" or "A", the screen will display as
below:
Please check related information to judge this unit whether has MIC function.
If this unit has MIC function, press "Y" then program will set MIC enable automatically as
below:
If this unit has no MIC function, press "N" then program will set MIC disable automatically as
below:
When you "Enable" or "Disable" EE-PROM function are OK, press any key will go back to EE-
PROM SETTING option as below:
Satellite/Satellite Pro M600/M640/M645/M647 Series, Dynabook TX/AX Series 43