Pitch and Roll Trim servo harnesses tested and built a stick stand onto the test bed. The sticks can be removed by disconnecting the d-sub connectors and the 1/4" plywood just slides under the test bed.
Oops, the sticks failed the test. The trim servos are not responding. After a bit of trouble shooting, I found that I failed to connect the ground lines to the stick connectors. Once I did so, the stick buttons activated the servos and passed with flying colors.
