On the electrical diagram TM1 and 2 are labeled and wired as I believe potentiometers without the central lead connected, but in the build guide it says they are encoders. When I view the assembly video they look like Pots to me, but I cannot find specs for them anywhere. I also cannot understand the way the wiring diagram connects them in the circuit. It looks like they are being used as resistors? I'm not can electronics guy, so forgive my ignorance. Can anyone help who has build the G-1000 NXI?