[Xbox classic 1.0 PSU help repair]

Greetings to all, I have an xbox classic 1.0 that they gave me. As soon as I tried to turn it on the initial boot appeared, but then I heard a noise like something sizzling coming from the power supply. I open the xbox and I noticed some screws springs on the power supply which probably caused a short circuit. Now the console does not turn on anymore. If I try to turn it on, the fan turns half a turn and turns off.

In stand by I have 3.25 volts on the purple cable while the transformer on the secondary between the red and black cable gives me 0 volts. What could I check. Thank you

[Hello at all]

Hello at all guy. I am from italy.I have 3 xbox classic and like videogame general.

Thanks