Chosen Solution
Ok I have a samsung model code is UN58J5190AFXZA for some reason my grandson was playing Playstation 4 and when he was done he wanted to watch TV so all I did was change the tv from HDMI2 TO HDMI1 which is my satellite the picture didn’t come on right away it took about 10 seconds then it came on for about 2minutes and went off just like someone turned the TV off but no one did I tried to turn the TV back on the led light was flashing but then I did the reset of unplugging the power holding the power button on the back for 30 seconds and now no light. I took the back off plug the power back in and I have about 24 volts on both sides of the slow blow fuse. Not sure if that’s what is suppose to be there or if it is suppose to more or less.but my tv won’t turn on.
boards
Hi @ larryk@callipm.com What is the AC voltage at the fuse FP8015 (if this is the one you meant) as the meter may have given an incorrect reading if measuring for DC volts as there are none there? Be safety aware as it should be lethal AC supply voltage value Try the following: Disconnect the power from the TV. Remove the back cover from the TV and then disconnect the cable between the mainboard and the power board. Reconnect the power to the TV. The TV backlights should turn on full intensity and stay on. There will be no picture because the mnainboard is disconnected If they don’t come on or if they blink then there is a problem with either the power board or the LED backlights. If they come on and stay on, measure the DC voltages at the connector on the power board where the mainboard cable was connected to and make sure that they’re all OK Measure between an earth point (screwhead on power board) and the pin. The voltage values should be marked on the power board near to the connector.
