Vintage Pathfinder P2A Autopilot - Servo amplifier settings -please advise

[brndiar]

Hi,

Please advise how to set up     

 "Zero" 

 "Neg Thresh" 

 "Pos Tresh"

on amplifier servo of my old Pathfinder P2A Autopilot, which after his exchange lives again.

 

Happy new year 2021,

thanks in advance,

lg,

m

 

Edited January 1, 2021 by brndiar

[kerry]

There is a manual you can find on mooneyspace for the pathfinder autopilot ground check and flight test procedures.  Search pathfinder and you'll find it.

[brndiar]

Thank you for your reply. The document in question discusses the setting of "DITHER AMPL", but  there is no mention in the document  of what affects the potentiometers "Zero, Neg Thesh, Pos thesh" and how to set them.

 

lg,M.

[kerry]

You can try to contact Michael Ritterbush.  I think he's your only option to answer your question.  He has the test equipment.  I think you're going to have to adjust your autopilot on patherfinder bench equipment.  It's been awhile since I've been in contact with Michael.  He's email is michael@ritterbush.us  In the past I've had to be consistent in trying to contact him.  Good luck. 

[carusoam]

The world wide collective power of MS is amazing!

-a-

[salc]

hello,

I'm new to this topic, but my son has a Pathfinder P2, that turns only right. Any updates to this thread? I tried to contact Mike and even traced him to Oregon, I emailed him and left VM but to no avail. 

Any new information is appreciated.

[kerry]

I got a hold of Michael via text message and he replied saying he still works on Pathfinder autopilots.

[Barzook]

On 8/26/2024 at 6:54 PM, kerry said:

I got a hold of Michael via text message and he replied saying he still works on Pathfinder autopilots.

Hello! Im also interested in reaching him. When you say text message do you mean the internal MS messages or phone text messages? If the later can you share his contact info with me? Thanks!