Hi,
I've read pretty much every post about Avtech 760, and found one guy who got a beeping 760 because of a fan that fried his power board.
Power went out today and when it came on again, the 760 was beeping frantically and no LED's were on.
Tried disconnecting and reconnecting, with no luck. Also tried disconnecting all cams and the HD, in case that was the issue.
The fan had also stopped working. Did parts of the power board die on me?