It's well known that the Romeo mod involves lifting the LA6508 pin from 12v and connecting it to 5v, but the delicate leg can't take very much abuse, and can snap off with very little pressure. Even if you are careful with it, a dot of solder can bridge it with another nearby pin, or even with the 12v pad, which can have a disastrous effect. These pictures show you an alternate means of doing this mod, without having to deal with the pin legs.
V10 (courtesy of darkplanets.co.uk)
Easy coil measurement points for V10:
V9 (c.o. me)
When scratching the copper tract off, leave about a 1 millimeter space so there isn't an electrical arc; and don't dig too deep, just barely enough to peel it off. Finally, don't forget to tape the connection points, to isolate them from the metal ground shield.
HTH. Wish I had known about this before snapping the leg off of one chip a while ago.