Adjusting Infinity IRS servo controller

I got a request from @bobterry99 about adjusting Infinity servo controllers. Inside the controller are 4 pots:

Left side level (amplitude)

Left side DC offset

Right side level (amplitude)

Right side DC offset

See the attached photo. I used a 2 ch oscilloscope to monitor the input and output while adjusting. With 4 ch, you could monitor both channels...

jtucker10-31-2023 9:35pm

imhififan Details Discussions Posts This discussion Message User 2,123 posts 11-16-2023 at 05:23am Copy Comment URL Report Comment Edit Delete Upload the picture into your system page and post it here.
racerxnet Details Discussions Posts This discussion Message User 54 posts 12-07-2023 at 08:34pm Copy Comment URL Report Comment Edit Delete Here are some pictures of the Genesis Servo amp and columns. There is no service procedures on the feedback to be found. You can see the 2 adjustment pots per channel on the board. Any ideas on test procedures for this?? Mark
jtucker OP Details Discussions Posts This discussion Message User 75 posts 12-08-2023 at 04:04pm Copy Comment URL Report Comment Edit Delete I don't have any specific info on that Genesis servo, but based on my experience with the Infinity servo, I would suppose that one pot is gain and the other offset. I adjusted mine for as close to zero dc bias as I could get and the the gain for unity. You will have to try them to see which one does what. You will also need access to an oscilloscope and probes.