Eumig Nautica trigger

[gabrielborner]

Hello!
took the Nautica out for a little excursion today and found to some dissapointment that the trigger is stuck in "go" postition wich means that it runs as you turn it on without being able to stop the shoot without turning the camera of. It doesn´t react (change speed) when I turn the speedknob from 24 to single shot. The camera is professionally converted to 24 fps and worked nicely the last summer. Anyone tried to dissassemble a Nautica? Tips? Is it possible to enter the front camera compartment if you take the metalplate with filmgate etc out - or does the camera selfimplode with millions of springs flying around? Do you think this is a trigger or cirquit board problem?
Cheers, GAbriel