Troubleshooting
The unit will not power on
• Confirm that the POWER switch is set to ON.
• Check the connections. (→ Making connections)
There is no sound or output is very quiet
• Check the connections. (→ Making connections)
• Confirm that the selected input channel is correct. (→Selecting the input (INPUT SELECT))
• Adjust the levels of the effects. (→ Adjusting effects)
• Adjust the level of the patch memory. (→ Setting the patch memory level)
• Adjust the output volume. (→ Adjusting the master level)
• If you are using an expression pedal to adjust the volume, adjust the pedal position until the volume
level is suitable.
There is a lot of noise
• Confirm that an instrument cable is not the cause.
• Use a genuine ZOOM AC adapter. (→ Making connections)
An effect cannot be selected
• If the effect processing power would be exceeded by effect selection, “PROCESS OVERFLOW” will
appear on the display and the effect cannot be selected. (→ Note about the number of effects in patch
memories)
Expression pedal does not work well
• Select a pedal effect. (→Using a connected expression pedal )
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