Hello friends, I wanted to check this fault because I don't know what to do ... this TV first came to me and the client told me that I did not turn on. Here in the workshop I proceed to turn on and turn on the best thing .. He stayed a few seconds and turned off ... I turn on again and it takes me about 4 seconds to standby and the light is reduced until it is cut ... I was investigating and they told me that in this tv series there are many flaws in the video chip ... the matter is I proceed to review it and as I was discarding the source I check Main but I don't know how to check it properly it didn't look anything weird ... as they told me I had problems on the video chip I proceeded to reflow on the chip and put thermal paste ... I reconnected the TV and walked about 20 minutes ... much more than the first time ... but this time the same thing happened as soon as I connected the Standby LED appeared for a few seconds and decreased until it cut but the TV like this and everything turned on program channels the best and I let it work or after those 20 minutes he walked I moved the LED a little to see if it heated a lot of any component and just moved it the TV was cut and I could not turn it on again ... but notice that the biggest source Chopper and the heatsink of the Video chip warmed to burn my hand. What a problem it can be and how do I proceed to repair if you could help me a lot thanks from now .. here I leave link of photos Main and source ..
https://www.yoreparo.com/ver-adjunto/aHR0cHM6Ly9jZG4ueW9yZXBhcm8uY29tL3VwbG9hZHMvZGVmYXVsdC8wMDAzLzMyLzE1MjExNzcwMzE0Mztg0Nw2JtNdw2dwdzdw3dw3dw3dw3d3
https://www.yoreparo.com/ver-adjunto/aHR0cHM6Ly9jZG4ueW9yZXBhcm8uY29tL3VwbG9hZHMvZGVmYXVsdC8wMDAzLzMyLzE1MjExNzUwODQzOTItMjADN0ItMQw4djjcwdw3dw3dw3d3