Yea, checked the manual first before coming here and saw the overload possibility. Don't think its a TX/RX issue, tank was run last week fine then put on shelf with no fiddling.
DMD does have a bit of electronic failure smell if you know what I mean. Wierd thing is no sound at all, and the issue of slight input (say turret rotation) then it goes from green to orange. Also no green light for flash or (operational) on MF.