Nintendo 64 No Signal, cartridge cleaning didn't work

as the title says I tried pretty much all the basics, I cleaned the cartridge slot, the cartridge, the expansion pack and the expansion pack slot with 91% ipropyl (or however you spell it)Alcohol cotton swabs, that changed nothing.

Additional Info:

The console turns on (the red light is on anyway)

I tested the AV Cables and they work fine on my gamecube, same for the HDMI converter.

I tested on 4 screens now.

I have ONE cartridge, the Super 64 (300+ games or whatever) cart

I tried both HDMI ports with the converter and AV slots (if the screen had them, some didn’t) nothing worked.

Is this just a broken console?