I have a Bose Lifestyle Model 5 the Display and Remote control stopped working on. The unit can still play sound from the aux input (used for watching movies), but the unit must be controlled by the integrated buttons. Does anyone have an idea on what component may have failed? I would also be interested in obtaining the schematics to troubleshoot it further. Let me know if you would be willing to share the schematics with me. My email is firstname.lastname@example.org.