Fishman preamp/pickup repair

Here i am repairing a Fishman classic 4T acoustic guitar preamp tuner function and guitar jack input connection to hopfully save some money on replacing the unit for a new one. This is a customers guitar so i am taking are not to do any other unwanted side effects to the system, he gave me the guitar not functioning at all so check it out and see if i made it work, maybe his video will help you out also.
The Session.

[vnltd]

Thx, my AUra Pro doesnt amplify. I got a replacement and it doesnt download Aura gallery images. Yea, thats no good. I used the orginal to diagnose the replacement that apparently has a failed port. After watching your video I see the plug was turned and shorted out causing the guitar to not amplify. Probably an all too common user problem. Ive looked at mine but it looks good so Im going to tin the wires making sure theres no cold solder joint. Anyway thx for the video, it got me thinking.

[herrunsinn]

It would have been really helpful if you wouldn't shake the camera around or if you wouldn't move around each part in your hand. I felt like I was watching a Jason Bourne "shaky cam" movie. Please try to hold the camera and the parts steady so we can see what you are trying to show us.

Other than that, your video was very useful.

[stevedo]

Nice, how do you fix them when they do not tune the strings properly?

[DarrellCampellCampbell]

I'm looking for the the part we're you plug the guitar in and the wire to

[kakazict]

I got from Marketplace a used Cort MR700F BKS that come up with Fishmann Classic 4T. But it appear with a noisy sound from the preamp. How to fox it u?

[henryssurfshowcase]

You got it working that’s great!
Have you ever tried to replace Martin Aura pick up?
Mine seems to have a grounding noise, I think it’s the red ribbon pick up?
I can make it go away for a little while, I think it got pinched under saddle?

[paulindo]

Hello! what can I do if the mic is full of rush? I have fisherman pickup.

[CornerOfTheOval]

How exactly did you diagnose the issue? I'm worried about having to get a multimeter and logic board diagram and have to do soldering etc

[Aniwebs]

Very impressed. Can I send my fishman pro (cort acoustic) to you for repair. If so how do I contact your business. The peizo works fine but if I slide over to the mic it's dead. I think I may have reversed the battery polarity by mistake.