Operation Manual

30
Appendix
1. Troubleshooting
Power does not turn on
❑ Is the power cable connected to an electrical outlet?
❑ Is the rear panel power switch turned on?
No sound
❑ Is the ZERO8 powered-on? Are the connected devices
powered-on?
❑ Are the channel faders or the MONITOR LEVEL knob
turned down?
❑ Is the volume level of the channel turned down?
❑ Is the SOLO/CUT switch set to CUT?
❑ Is the GAIN knob raised to an appropriate level?
❑ After connecting a device to an input jack, did you as-
sign it correctly to the mixer channel?
→ Use the INPUT SELECTOR knobs to input the desired
source into each mixer channel.
❑ Make sure that audio is being input.
→ Use the level meter to verify that audio is being received
into each mixer channel.
❑ Could you have selected a MIDI controller setting as the
input selection?
→ Use the INPUT SELECTOR knob to select an input jack.
Excessive noise or distortion
❑ Is the GAIN knob set appropriately? The sound will be
distorted if the TRIM knob is set too high, and there will
be excessive noise if it is set too low.
→ To obtain the best sound quality, the GAIN knobs for
the GUITAR, MIC, and INPUT 1–INPUT 8 jacks should
be adjusted as high as possible without allowing the
level meter to light red.
❑ Are you be using an effect?
→ Some of the effects intentionally add distortion or noise.
Check whether distortion or noise occurs even if you’re
not using an effect.
❑ If the sound is distorting at the EQ, make the following
adjustment.
→ Adjust the gain value of the EQ.
Channel effect is not applied
❑ Have you assigned the channel effect to the correct
mixer channel?
→ Check the channel to which you assigned the effect.
Send effect is not applied
❑ Is the send level for ZERO FX SEND set to 0 or near 0?
→ Raise the send level.
❑ Is the return level for ZERO FX SEND set to 0 or near 0?
→ Raise the return level.