Appendix
Troubleshooting
If you think that the M4 is operating strangely, check the following items first.
Recording/playback trouble
There is no sound or output is very quiet
• Check the orientation of the mic or the volume settings of the connected equipment.
• Confirm that the headphone volume and line output level are not too low. (→Monitoring input and
playback sounds, Adjusting the line output level)
• Check the M4 input source settings. (→Changing the recording file format for the built-in XY mic, Setting
INPUT 1/2 sources and phantom power)
• Plug-in power must be supplied if the mic connected to the MIC/LINE IN jack supports plug-in power. (→
Using plugin power )
• Increase the volume amplification on the display for the input signal, and increase the monitoring
volume. (→Adjusting the volume display size to make checking easier
）
• Check the phantom power settings. (→Setting INPUT 1/2 sources and phantom power, Changing
phantom power voltage)
Monitored sound is distorted
• Adjust the volume amplification on the display. (→Adjusting the volume display size to make checking
easier)
Built-in mic sound is distorted
• Move the M4 away from the sound source. Use a windscreen if air is blown at the mic. (→Reducing noise
(low-frequency cut))
INPUT 1/2 sound is distorted
• Adjust the volume of the connected device, and confirm that the M4 input source setting is correct.
(→Setting INPUT 1/2 sources and phantom power)
Recording is not possible
• Recording can only be started on the Home Screen. (→Recording)
• Confirm that the microSD card has open space. The available recording time can be checked on the
screen when recording is paused. (→Home Screen)
• Confirm that a microSD card is loaded properly in the card slot. (→Inserting microSD cards)
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