When no sound comes out or the volume is low, check each of the below in the following order:

This is an example when you use multi-players connected to [LINE] input.

1. Check the multi-players are connected properly.

2. Check the input selector switches on the relevant channels are set to [LINE].*

3. Play a track on the multi-player.

4. Adjust the [TRIM] knob so the channel level indicator lights up with the peak level at around [0] dB.

5. Slide the channel fader to the top and the crossfader to the center.

6. Adjust the MASTER [LEVEL] knob so the master level indicator lights up with the peak level at around [0] dB (so that the red light doesn't turn on).

If you don’t hear any sound from the headphones (HEADPHONES A) at this point, check the following:

7. Turn the [MIX] knob to the center.

8. Turn the [LEVEL] knob all the way to the left.

9. Press the [CUE A] button. (If you're using HEADPHONES B, press the [CUE B] button）

10. Turn the [LEVEL] knob slowly to the right.

*Set the input selector switches according to the sound input. For example, select [A] for the sound of a PC/Mac connected to the [USB/MIDI] input and select [PHONO] for a turntable connected to the PHONO terminal.

If the volume is still low, adjust the [ATT.] setting.

For details, see [Utility settings] in [Settings] in the Instruction Manual.

You can read the Instruction Manual [here].