No, I did not have to cut any traces on the board. I checked the voltage on the trimpot and saw that it would not go above 1V, regardless of the setting of the trimpot. So I tried with various resistors between those pin holes (3k, 820R, 270R, just holding it
without soldering) to raise the voltage and then soldered the one which worked best...
without soldering) to raise the voltage and then soldered the one which worked best...