We're glad you asked. There could be many reasons the system turns off on its own, it might be that the signal from the source device is too low and is not detected . If your systems "auto off" feature is enabled the system will turn itself off after a period of time if there has been no interaction. This feature is easily disabled.
For assistance please contact our technical service team at 800-367-4008. Support hours are Monday - Friday 9:00AM to 9:00PM and Saturdays from 9:00AM to 7:00PM EST and we'll be glad to help.