Sega Master System / Mark III / Game Gear
SMS Power! 18th Anniversary Competitions are coming! Deadline 27th March - 2 weeks and 5 days from now
Cut the trace from the NTSC jumper leading to Pin 57 on the 315-5214 IC. Using a SPDT switch, solder a wire to the common (middle) of the switch to Pin 57 on the 315-5214 IC. On one of the unused legs of the switch, solder a wire to the PAL jumper pad.