Imported Famicom, power but no picture

[2A03]

Is there anyone who does repairs/av mods here on the forum?

I can tackle it for you, send me a PM and we'll work something out.

[ebinsugewa]

When I use an RF modulator like the NES grey box, I get heavy snow. It's unlikely to be the whole problem, since you'd probably get at least static/some picture. But if you have a spare RCA cable laying around, try using just that cable and an RF to coax adapter.