Tv lg 21FJ8RL chassis CW81B Partners I am New to this forum but here I have been given excellent solutions for repairs , ok let's get to the point it turns out that I have a Tv lg 21FJ8RL chassis CW81B that tries to turn on and protects my procedure was to measure the Vertical IC LA71841 between pins 2 and 6 which returned a value of 28 - 29 V (Dc), I proceeded to disconnect the D303 to be able to measure, then change the LA for a new one of the same reference, but what happens because the TV turns on only after plugging in if you should not do it until you give the order from the control, perhaps there is some wrong procedure or it will be failure of FR403 of 1.2 , or in that case, colleagues, what should I do to solve that problem and prevent the LA from burning again since the first one changed, the first one exploded, I put the second one but I don't want the same thing to happen, so don't take the risk, but plug in the tv to rehearse and turned on alone so better disconnect and I did nothing ..... annex that after all this the tv turns on alone when connected to the energy and I could not solve that step to which that is the cause that the piece explodes, a few seconds after switching on

First of all I should check the bmas regulation if you do not want damage remove the tsh to check it, that the TV turns on when connected does not indicate a fault, if the TV is disconnected from the network being turned on if you turn it off with the remote control, then auto power up when connecting to the network .... comment your tests.