esoteric d07x conversion voltaje

Hi, i m seeing inside of this dac 3 switchs. only moving this i can move from 100 to 230V ?  
The best course of action is to check with Esoteric to see if that is all that is required.  My P-02 and D-02 have a separate small board right after the IEC input that has jumpers to move a wire harness to in order to set for 100v, 120v or 220-240v. Before using it, I did check with Esoteric that all that would be required is to move this jumper and the unit would still be under warranty...