SHutting off by itself?

try to fasten screws at back of the unit ,
may sound like BS but if amp board don`t have good ground connection it can go in protection mode

happend to me on RX-V592

I AM HAVING THE EXACT SAME PROBLEM WITH MINE ! But before mine turns off, it shows a blurry squiggly red mark on the screen then shuts off and wont turn back on sometimes for several hours.. And everytime I CAN get it back on, I have to unlpug the whole thing and plug it back in...

what do you do if your in stand by mose

sounds like your processor fan shut down and now your processor itself shuts off when it begins to over heat replace fan asap and don't keep trying to turn it on because you'll burn it out

Hi, I have a 50v715 and it did the same thing. Turned out to be the lamp. So, you might try replacing the lamp to start with. Hope this is helpful.

It has you Posted as a projection TV and Not DLP, if Fan to Lamp stops running set will shut off to protect Lamp,I had a DLP that would play sometimes 30 mins then shut off drove me crazy trying to firgure it out and it turn out to be Fan would stop running I replaced Fan TV working fine . When you remove back engage toggler switch to up position put a piece of tape on it to hold it is a safty switch ,then turn tv on watch to see if all fans are running also if when tv trys to come on is there a spark coming from Ballast Board if so your new Lamp is defective it does happen if not your ballast board maybe Bad it is what turns on Lamp.If all fans are running Ballast Board.

Green light flashes 5 and then red light flashes 6

Consult your technician there is a semiconductor problem inside your tv. Probably lose connection, and need to resolder.

there is something wrong with your switches maybe. Or the thermostat problem occur.

replace the battery, it's weak.