Thanks for the information guys. All very helpful.
I will upload more and clear pictures from the chassis internal view later.
I will try to not change all the capacitors. I will make some tests before any chance.
The electrolytic may be in good condition because the seller didn't mention any hum sound..
One cable from down inside it is detached. I'm not that good to understand where it goes
I know my English are not very good also so I will add pictures to make all this more understandable.
Have a nice day everyone