So I just got a japanese megadrive which had been premodded to be fixed as pal50.. expensive way to play local games but whatever..
it seems to have four areas modded. two I recognise.
one is the jumpers obviously, the other is the crystal for colour, which was done much more simply than I've seen before (see photos),
and two more..
one is a cut trace with an added resistor and wire link on the 68000, and the other is a resistor to ground on the av output (composite video line I think).
anyone know what these are about?