Hi,

I can offer general advice some of which you may already have figured out.

If the trace has burned up it is because to much current went through it. This is usually because it is driving something that has become a short circuit or the wire it is driving is shorted. So instead of that pin/trace seeing a "normal" amount of load, it sees a huge load and too much current flows and it burns the trace. Essentially, the trace has become a fuse. If it happens right away then it is a dead short, if it takes a while then it is a less than dead short. In any case, every board you put in will die the same way.

You need to fix whatever thing/wiring that pin is driving.

__________________
1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra