InVoca 3 parts?

Question

I had a problem with my inVoca 3 and three components fell off the board. I found TWO but I cannot tell what the third was. It is R39 next to the "black circle" on the circuit board if someone wants to open theirs up and check. I'm guessing it is a 103 resistor, but cannot be sure and the "learn" button feature has stopped working. I replaced it with a jumper and a 103 (10K) resistor, and the learn function says "button learned" but it does not operate. Any help??? Thanks