VM-3100, VM-3100PRO: Adjusting the Volume and Balance of Signals Output from the MASTER OUTs
Use the following procedure to adjust the volume and balance of signals output from the MASTER OUT jacks:
1. Adjust the volume with the MASTER fader.
2. Press SELECT in the MASTER section.
3. Press DOWN CURSOR to select "Balance."
4. Rotate the VALUE dial to adjust the left/right balance.