Capacitor fix for skipping dvds - need help

[Spicules]

I read the factoid by charlie ps2 on the various issues for the chips and saw something about dvd skipping - a problem i have on both movies and games. However, I have a magic 3 (not a magic 2 or messiah) installed on a US V4 GAP. Is the fix the same (1uf 35v polarized capacitor on the S/SCEX line)? If it is, can someone tell me which wire/pin on the magic3 (or wherever it is) is the S/SCEX line? When I installed it, there was no pin designated as "S/SCEX", only letters A-W (minus a few),gnd,+5V and reset. Any help greatly appreciated!