I am trying to replace a 2-D analog joystick assembly that no longer works, because I dropped it. The assembly looks just like the one pictured in this forum post.
My question is about the trim potentiometers in the assembly.
I removed each of the potentiometers from the circuit and measured the resistance across each pin when the potentiometer is centered (pin 1 to pin 2, pin 2 to pin 3, pin 1 to pin 3). I recorded the measurements I took, but they are not what I expected:
R_1-3 for each potentiometer is ~7.5kohms, but R_1-2 and R_2-3 are measuring ~5kohms each.
Do these measurement make sense? I was expecting that, given the same centered position of the potentiometer, R_1-2 and R_2-3 should sum to the value of R_1-3. Am I incorrect?
I included a screenshot of all of my measurements below, if it helps.