peavey studiomix one flying fader not working anymore

[gmp]

I've been using my peavey studiomix for many many years and it's worked fine. Today one of the flying fader stopped  working. It records automation fine by moving it but when it plays it back the fader doesn't move like all the other faders do. It's fader #6.

I rebooted, tried a different CWP file, uninstalled and reinstalled Studiomix, I'm using CbB 2024 12, but I also tried 2024 07 - same problem. I tried new midi cords a different USB port. It looks like I'll need to open it up and see if there's something obvious to fix. I'm no tech repair guy, but I can replace a pot with my soldering iron. I'm just wondering if anyone has opened the Studiomix or had a similar problem?

[mettelus]

If that fader responds to electronic input, then it is a servo control. It is possible that it is a connection/cleanliness issue, so definitely check those first. If you take it apart, look up the part number online for that fader and see if you can find one (I just found nothing with a generic Google search). It can be hard to find such things unless the servo itself was generic, but there are also used units online for roughly $100 if you hit a dead end with it. Another option is to contact the manufacturer and ask them how to get your hand on the part once you know the number.

[Amberwolf]

If it's the actual fader motor, there are replacement parts out there for some types.  This is a link for behringer part, not peavey but maybe they also carry those:

https://www.sweetwater.com/store/detail/MOTORFADER--behringer-mf60t-motorized-faders-set-of-5-for-motor-controllers

Remember also that the motors are driven by electronics on the board itself, and those can also fail, though it's almost always the mechanical parts that fail first. 

Most of the motors in things like this are simple brushed motors, so the brushes can wear out, leaving the motor working poorly or not at all.  Brushes are actually replaceable in a lot of motors if you are willing to take one apart to do that, but they aren't usually available as parts, so you have to make one yourself (the easiest way is to use a brush that *is* available that's close in size and shape but bigger, and whittle it down; some RC hobby forums have threads on how to do this).