T-560 POWER CABLE CONNECTION REPAIR

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sixtoo
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Joined: Tue Jun 10, 2025 3:57 pm

T-560 POWER CABLE CONNECTION REPAIR

Post: # 69271Unread post sixtoo
Tue Mar 10, 2026 7:58 pm

First of all, let me preface this by saying DO NOT DO THIS if it is at all possible to send your unit to Souri for a repair.
I will not be held accountable for you being misguided, or for outcomes relating to you messing up your motor.
I positive that this is a temporary fix, even for my unit, but I am comfortable messing around with these types of things,
mostly because our studio sits in a synth repair shop with great technicians.

That said, I am trying to be a helpful member of the community, and on the suggest from Spinnertown, I am sharing my documentation from our main unit repair.

When I unboxed my t560 kit that was shipped directly from Souri, I had cables that were either broken in transit from Germany to my home, or, deliberately cut by Fed Ex, freight forwarding, or customs employees.
But, everything -looked- fine. It wasn't until I put a meter across my entire main unit trying to find out why my motor would not move, that I eventually retraced the cabling. Everything on the circuit board for my main unit was powering, passing signal, and
seemed to be working from a running-the-meter-over-it perspective.

When I eventually gave a light tug on where the wires connect to the motor, it became obvious that someone had cut the power, and just shoved them back inside the silicone so that they would look fine.

So, as soon as I decided that this was in the realm of a fix, The first step was cutting away the silicone that surrounds the motor..

1. There some kind of resistor or capacitor that sits directly between the two power cables, and as such I would suggest starting at the holes for the power, and cutting outwards towards the shaft tube, and then using needle nose pliers to gently work through removing all the remaining silicone.
2. Because the power cables are thick (around 12 guage) it takes a long time to get them unto temperature to hold soldier. Originally we tried to butt-splice these cables to the chopped nubs, but it was a very hard task and we were worried we would harm the motor trying to make a hot connection in a small space, relatively blind. Eventually we decided to solder some smaller gauge wire directly to the motor (3 cables worth of smaller gauge wire so that the current and impedance wouldn't get messed with too much by the repair, but that would heat up quick enough to bind to the posts)
3, we braided the smaller gauge cables around the existing power cables following the original L-R orientation
4. we soldered the larger guage to the smalle wiresr.
5. we pushed the heat shrink all the way back to the motor casing and shrunk everything tight.

Fired it up, The repair worked
These are photos from the repair.
I hope nobody else has to deal with this, but just in case, here are the photos from our surgery.

Best, Rob.

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