Steve, you sure you got that right.
My 3600HSD bit the dust a long time ago but AFAIR there were no manual settings.
Being an HS(D) it obviously supports high speed shutter and ADI.
Other than that it worked in wireless remote but not as a controller.

So on camera it will work in TTL or ADI mode.
TTL off camera triggered by the pop up.
Ratio flash is only supported by A700 camera and above.