Welcome to ETO!
I hate to be the bearer of bad news, but if the fuse is ok and mains power is getting to the set then, given the questions you are asking, it is clear you don't have the skill set needed to fix the TV safely.
Welcome to ETO!
I hate to be the bearer of bad news, but if the fuse is ok and mains power is getting to the set then, given the questions you are asking, it is clear you don't have the skill set needed to fix the TV safely.
I would eliminate the power supply first, it is usually on a board by itself, disconnect the outgoing DC supplies and see if the fuse stays intact, if it does it is further into the set.
If it does blow then you have a P.S. problem.
Max.
I would eliminate the power supply first, it is usually on a board by itself, disconnect the outgoing DC supplies and see if the fuse stays intact, if it does it is further into the set.
If it does blow then you have a P.S. problem.
Max.
I would eliminate the power supply first, it is usually on a board by itself, disconnect the outgoing DC supplies and see if the fuse stays intact, if it does it is further into the set.
If it does blow then you have a P.S. problem.
Max.
I will try it.
I have seen in youtube a man that says that usually that problem is on the PTC. He said that one of the first steps is to disconnect the wire from the PTC to the coil and turn on the TV. If the TV works, it's from the PTC.
But I agree with you too. I have localized the P.S. and I will try also the advice you said to me.
I have recorded a video to see better what I mean. Sorry for my english.
I have disconnected 4 cables
3 cables from a board (small board connected to the big board)
1 cable from a big board (not P.S)
About the fuse, I mean that the fuse has exploded when I replaced it with a new one.
If it were me, I would follow the mains cable into the power supply board in the TV (probably where the fuse is located). That board (likely a board with other functions as well) would have cables going elsewhere in the TV. disconnecting them and then observing whether the fuse blows (or not) would help you "trace" out what part(s) of the TV circuitry are defective. This is a very crude approach to trouble shooting but, who knows? It might work...
My guess is the problem is most likely within the power supply board itself.