In general, he did not fire, he suddenly stopped working. I pulled the plate out and the fuse burned, and the wheel of the large capacitors on the board can see a blackout, so these capacitors could theoretically fall. I replaced the capacitors and then the same, I exchanged mosfets and resistors to secure these mosfets. Further the effect is the same, but slower as if the fuse is blown, previously white and shot immediately and now heats up slowly and only a shot, a longer time to eject the fuse. That's what I'm on at the moment and I do not know what's next.
near the large capacitors on the plate you can see the blackout
What "blackout"? I do not see anything like that.
these capacitors could fall
Theoretically, it could "graze" a dozen other elements. Only those exchanges are exchanged. Did you measure these capacitors?
exchanged mosfets and resistors such when protecting these mosfets.
Another "blind" action? Did you measure? They were actually damaged, or are you still shooting blindly? I am asking, because if you go on like this, you exchange everything and (if it can be fixed at all) the cost of such repair will exceed the value of the new equipment several times.
Next effect is the same, but slower as if the fuse is blown, previously white and shot immediately and now heats up slowly and only a shot, a longer time to eject the fuse.
After the first burning of the fuse there was a probability that the damage is one - primary. After further attempts to turn on the equipment - and subsequent burnt fuses - the probability is growing that you have damaged further elements. I would advise you not to make any further attempts blindly. You will save on costs.
When it comes to blackout, on the third picture, where the plate is visible from the bottom, it is dirty on the left, I wiped a little before the photo and it was blackish, i.e. capacitors, I soldered and my friend checked and exchanged them. I heard him.
I had mosfets for free so I exchanged for the same, not for the half of the wages, I have for free. And what these resistors were damaged for sure, I checked.
Well, these fact tests are dangerous. With this I can agree. But this equipment has been bought for years and is not used and I got it and how I fix it. for free so somehow I want to learn something there, the cost does not matter but I want to do it myself!
Hi, will he write to me someone who transistors of the final stage of the amplifier sit there (those applied to the heat sink)? In my markings are blended and 100% have both burned? I will share my experience after a successful repair.
Added after 6 [hours] 14 [minutes]:
I made irf 9530 irf 530, the rep repaired is gold like, if you need help with such equipment I will gladly advise you on the basis of symptoms