US Snes 2/Jr 50/60hz Modification - Possible?

[cawley1]

Guys,
I have searched the net, but have not been able to come up with a concrete answer that a 50/60hz mod can be done to an NTSC Snes 2/Jr console.

The closest I found was a diagram here relating to a mod done on a PAL SNES with a 1-chip mothercoard, from a guy called Markus some years back, but am not technically savvy enought to know if I just need to modify this to work on my US system.

http://img.photobucket.com/albums/v204/ret.../1Chip-SNES.jpg

If anyone has actually done this mod on a US 1-chip SNES, or is near certain it would work and can explain what I would need to change, I would give it a go, but don't want to bugger my nice little RGB modded SNES 2 for no reason!

Cheers,
Paul