this may be able to be disabled in the system menu.  i forget the button combo, but there is a hidden menu on the remote to adjust things like brightness and other settings.

edit:  I looked up the manual.

Press the WATCH and ENT buttons at the same time and hold them.  That will take you to the system menu.  In the menu is an option to turn off the pick up sensor.

[Link: cdn-docs.av-iq.com]