Proto-coupler

Dave,

Check for a broken solder joint right where the wires connect to the coupler.

Thanks they look ok. I will have to keep looking.

Dave

What did you put it on?  PS-1, PS-2 or 3 engine?  What does coupler look like?  PS-1 coupler is different and won't work with PS-2 or 3 engines.  Wiring, connector, PCB all can be issues beyond a coupler with bad coil.  G

It is the coupler that come on the engine. I bought the hole engine used. I’m going to have to take the body off,and check some more. Can I touch two wires from the  transformer to the coupler to see if it will open before I take off the body?

Dave

What version of Protosound? Do the sounds work?

PS-2 everything works  except the front coupler. 

Dave

I thought you meant you bought a used coupler.  Couplers go bad, but more then likely the wire broke off coupler, or is cut somewhere under the shell.  Worst case is the board fet is damaged.  Can be repaired.  G

Thank You!