Manufacture date: October 2011
Two days ago the top 1/4 of the screen's LED's stopped working (I assume). The screen still shows a perfect image but it's noticeably darker (perfectly uniform line from the left to the right side) than the rest of the TV. The LED's have turned back on about 6 times (usually when the TV first starts) since this problem first started but they do not stay on for very long.
At this same time that the LED's went out, the TV began restarting on it's own occasionally. The screen goes black then the start up screen comes up (Samsung's Smart TV
logo), the red power light flashes and you can hear the relay's clicking. However the two other Samsung devices I have hooked up to it (sound bar and Blu-Ray player) are set up to turn off when the TV does, but they don't turn off when the TV does this "reset". They do still turn off when I use the power button to turn off the TV.
Now the TV has started resetting its self more often, in fact it does it anytime I try to do anything online (Netflix, YouTube, etc.), open the "smart Hub", or make a change in the advanced picture settings. I'm currently watching TV (through an antenna
) and listening to a sound bar through the ARC, and have been for a few hours without it restarting once.
I've tried "fixing" it by using it without any inputs connected, I've also unplugged the power cable to let the TV discharge and reset. I've also updated it to the most current firmware (1030) (as advised by Samsung support) through USB because the TV told me it's current firmware (1019) was "up to date" when I tried to do an online update through the TV settings.
I've also taken the back cover off to inspect for blown or bulging capacitors or bad solders, but saw nothing out of the ordinary.
I personally think it's the main board that needs replacing but unsure how to test it.