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Besides hooking things up electrically, you also do a lot of configuring of the system. For example Picture two shows how I want my G meter to read, where it is positioned and whether it displays automatically or manually. This was when I made my first discovery of a problem with the wiring. I wanted to be able to add a Yaw damper down the road if I thought it would be helpful. As it turns out, the final cable design from Van’s includes this option. As I configured the servos I told the system I wanted to have a roll, pitch and yaw servo. Since I only have two I had to first set up the roll and pitch servos. Simple. I then disconnected the pitch servo - replacing it with a special plug for just this purpose supplied by Garmin - and plugged it into the yaw connector. When I turned the avionics on, the screen in picture one was not all nice with green check marks. Things were blinking and the servos definitely didn’t seem like they wanted to play nice. I disconnected the roll servo and when the avionics was powered on again the yaw servo said it was a roll servo. I had an aha moment and went and looked at the Van’s master drawing and found a mistake. The servos themselves are identical. They only take on their specific personality when they are plugged in. The connector needs to be wired for what type of servo should be in that place and the Van’s drawing was missing a jumper that would tell the servo to be a yaw damper. The connector told it to be a roll servo, and since there already was one, the system was very unhappy. I inserted a jumper myself and let Josh and Steinair know so he could get back to Van’s. Steinair makes the cable for Van’s and Josh said they had just shipped out a bunch like mine. Since few yaw dampers will probably be added it may not be much of an issue but it is easily fixable.
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