Jaguar:50/60hz Switch

The NTSC and PAL motherboards for Atari Jaguars are nearly identical, except for a jumper that is closed on PAL motherboards. When this 0 ohm resistor is in place, the system to run at 50Hz instead of 60Hz.

Removing the Jumper

On the bottom side of the motherboard near controller port 2, locate the resistor. It may be marked as "R148". Heat each side and add fresh solder and remove the resistor. You may want to keep the resistor attached on one pad so you can always undo the mod.

Alternatively, you can install a SPST switch and solder a wire between each leg and the pads so that you can switch between 50Hz and 60Hz.