N64 turning on with no picture or audio

My N64 all of a sudden like a couple weeks ago started turning on, with the light switching on but with 0 picture or audio and the tv picking up no signal. I’ve tried both the expansion pak and regular graphics pak and nothing works. I’ve cleaned them, all my cartridges and nothing works. If anyone knows what the problem is it would be greatly appreciated. It literally just sits in the room it’s in I don’t know how it happened and I’ve had it for 6 years now

UPDATE: after, yes, blowing into the cartridge and reinserting the gamepak and cartridge a couple times, it started working