Samsung LE32A330J1XXC TV Turns Off Unexpectedly: Standby LED Flashing, Capacitors Checked

Hello

I have a problem with Samsung LE32A330J1XXC TV. The TV switches itself off without any reason and unexpectedly. It can work without interruption, e.g. several hours and turn off suddenly, or after turning on after a few minutes. The symptom is that the TV goes out, the standby LED flashes several times and goes out. I did a restart to factory settings, but it did not help, the side button controls are disconnected because it is damaged, I checked the electrolytic capacitors - they do not have bulges. I don't know what element can turn the TV off and where to look for it. I only have a meter and an ordinary soldering iron. Maybe someone was dealing with such a malfunction of this TV. Please help.

Check the "Power ON" button on the front of the TV, unplug it
control. Despite the lack of bulges on the capacitors, it is worth checking the capacity
+ 5V power supply capacitors.

Approx. Thanks for the answer. I still have a question, what could be wrong with this "Power ON" button because I watch it and do not see what could break there? The power supply in this tv is BNN44-00213A, could you tell what capacitors are in the 5 V line, because I look at the diagram, but I can not locate them on the board. Tv is already 9 years old and in fact capacitors may have lost their capacity. Maybe list them all prophylactically?

Sometimes such a button can have a resistance of several dozen ohms and this causes that sometimes the disc receives it as a signal. The PSU has the signals on the sockets described.