Mag 254 keep switch off

[kazikool]

Mag 254 keep switch off automatically after a while and also if I switch off from remote control and switch on it doesn’t work .I need to unplug then plug back again to work please help

 

[Truckerone]

Mag 254 keep switch off automatically after a while and also if I switch off from remote control and switch on it doesn’t work .I need to unplug then plug back again to work please help

Same here new yesterday ok setting up but when I turn off my Tv (Samsung ks7000) mag seems to go on standby but I can't seem to keep mag running