Replaced chips on function generator, discovered error on the PCB

REPLACEMENT CHIPS PUT IN CORRECT SPOTS BUT INCORRECT OPERATION

I was not getting reasonable results when selecting functions such as x squared so I began to troubleshoot using the schematic. It was at this point that I realized that I had made an error in the PCB. I swapped the + and - inputs of the Op Amp, which drives the amp to its rail instead of matching the input voltage with higher drive. 

Even though this is a surface mount chip on the PCB, there is a way I can hack the board to correct the connections. Essentially I cut two traces per op amp, use a solder blob to bridge two adjacent pins, and tack a bodge wire to reroute a signal. The chip has two op amps in it, thus I repeat this on each side of the chip. 

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