SNES console differences?

[tonki]

I read somewhere recently (probably here) that the Game Genie for SNES won't work on some later consoles, and sure enough it wouldn't on a couple of mine. I'm wondering what the differences are between the different console revisions or whatever. I have my original model 1 that allows the game genie, a newer model 1 that doesn't, and a model 2 that won't either. I took apart the 2 model 1's and noticed that the older one has a heavier board, with what appears to be extra stuff near the expansion slot (SHVC-SOUND written on metal shielding). Are there any other differences, performance-wise, that I should be aware of? I'm just wondering if there's any need to keep the different revisions. Any info is appreciated!

[qbertandernie]

i completely missed this last week, but just found it in a search. i redoing my ebay area i noticed i have a few heavier SNES systems, so i thought id search it out. guess ill bump this and see if anyone has any more info....maybe others missed this post too?

[MrKitt]

the part of the pcb your talkin about is the Sound area on some pcb this is melded as 1 board on others its a plug n play module

and i havent experienced this error on any of the snes ive modified.. try pulling the copy protection pin up in the air and se if it works.