It is possible to calibrate certain aspects of your Deepmind from the "System settings" menu.
To get to the system Settings, Press the "GLOBAL" button until you arrive at this menu, and towards the bottom you should see the "CALIBRATE" option.
If you access the "CALIBRATE" menu you will be able to see the features of the Deepmind that you can calibrate;
Select what you would like to calibrate and then following the onscreen instructions.
For more information on the calibration routines, please refer to page 33 of the User Manual at the following link;