Here is the schematic & layout for that area of the board.
peavey-vtm-60,-120_ J2 J3.pdf
peavey-vtm-60,-120_ J2 J3 Layout pdf.pdf
Overcurrent draw may have caused the failure as well as poorly soldered connections underneath the board.
I am confused by (what the layout diagram terms 'J3") the 3 wire connector.
The layout shows a two wire in that location.
Your photo does not show J1, which is a three wire.