Stop running in circles folks.
I have discovered the problem and want to get the word out to everyone. My $4,400 set did the same thing. People said, "buy a new t-con board" or "but a new power supply". So I did. Same problem came back. Well, doing more research, I figured out how to fix my problem and yours as well.
More than likely, like me you have your Picture set to Dynamic mode and the backlight at 100%, maybe even DNR activated.
Here is what you do. Keep trying to turn the TV on, evertually it WILL come on, sometimes it might take 100 attempts over a couple of days. Once you get the TV to come on, do the following.
Each and every time BEFORE you turn off the LCD, change the picture back to Standard mode and turn off Digital NR and turn off DNIe, also turn the backlight to the lowest setting. The Standard mode will remember the backlight, DNR and DNIe values. You'll just have to change between Dynamic and Standard in the future after power up.
If you do this everytime you turn off the set, it will probably always turn right back on for you.
The Cause: The t-con board does not stay at 100% performance over time. It is susceptible to decay in performance due to heat damage. The t-con board runs hot to begin with, it runs hotter the more that is demanded from it by maxing out the video image settings. The t-con board also sits directly above the hot power supply and the processor on the t-con board has virtually no heat sink.
Lowering the video settings at startup allows the t-con board to function.
Samsung should probably release a firmware that throttles the video settings at startup
I have discovered the problem and want to get the word out to everyone. My $4,400 set did the same thing. People said, "buy a new t-con board" or "but a new power supply". So I did. Same problem came back. Well, doing more research, I figured out how to fix my problem and yours as well.
More than likely, like me you have your Picture set to Dynamic mode and the backlight at 100%, maybe even DNR activated.
Here is what you do. Keep trying to turn the TV on, evertually it WILL come on, sometimes it might take 100 attempts over a couple of days. Once you get the TV to come on, do the following.
Each and every time BEFORE you turn off the LCD, change the picture back to Standard mode and turn off Digital NR and turn off DNIe, also turn the backlight to the lowest setting. The Standard mode will remember the backlight, DNR and DNIe values. You'll just have to change between Dynamic and Standard in the future after power up.
If you do this everytime you turn off the set, it will probably always turn right back on for you.
The Cause: The t-con board does not stay at 100% performance over time. It is susceptible to decay in performance due to heat damage. The t-con board runs hot to begin with, it runs hotter the more that is demanded from it by maxing out the video image settings. The t-con board also sits directly above the hot power supply and the processor on the t-con board has virtually no heat sink.
Lowering the video settings at startup allows the t-con board to function.
Samsung should probably release a firmware that throttles the video settings at startup
