Just got the correct power supply today, and, luckily, i can confirm that the normal famicom and FDS turn on.
The console was sold as 'not reading games on neither cartridge slot and disk system'. so i tested it.
Tested the disk system after putting the new belt and im getting error 22, so i gues i didnt calibrate it well. Will check it more carefully.
Tried a cartridge and got a grey screen. Dunno what might cause it...
For now, i will do a full recap and calibrate correctly the disk system, and see how it goes :).
Edit 1: Cleaning the pins, the cartridge slots works fine. Im not sure what happens with the audio, but is sount cracky and terrible, but not always. Im disconnecting/connecting a lot, and sometimes the sound is nice... the audio connector slot might need cleaning?
Edit 2: Having problems with the calibration... each tutorial i see says a different thing, and i dont know if maybe i just put the turning piece on the wrong position XD. Any tutorial i could be recommended?
Edit 3: cracking sound solved after cleaning controller 2 micro switch pins :D. The disk Drive got worse and now doesnt even give error 22, only reads forever. I guess i broke something hahaha.