Troubleshooting
MW12 Owner’s Manual 23
English
Troubleshooting
The MW12 mixer won’t turn on.
• Is the supplied power adaptor properly plugged into both
the mixer and an appropriate AC wall outlet?
The system doesn’t work properly.
•Are the USB cable and all necessary audio cables properly
connected?
• Are you using a USB hub?
USB hubs can interfere with proper operation, so try
connecting the MW12 directly to a USB port on the computer.
If the computer has multiple USB ports, try a different USB
port.
• Are you using other USB devices at the same time?
If so, try removing the other device(s) and connecting only the
Yamaha USB device.
No sound.
• Are your speaker cables connected properly, or are they
shorted?
• Are the volume controls of your sources, audio devices,
applications software, computer operating system, etc., set
at appropriate levels?
• Is the output of your computer operating system muted?
• Do you have several applications running at the same
time?
Be sure to quit all applications you are not using.
• Is the sound output of your computer operating system
assigned properly?
Windows:
1From the [Start] menu click [Control Panel], then
double-click “Sounds and Audio Devices” icon to open
the “Sounds and Audio Devices Properties” dialog
window.
2Click the “Audio” tab.
3Set “Sound playback: Default device” and “Sound
recording: Default device” to “USB Audio CODEC.”
4Click [OK].
Macintosh:
1Select [System Preferences …] from the Apple menu and
then select “Sound” to open the “Sound” dialog window.
2Click the “Input” tab and under “Choose a device for
sound input” select “USB Audio CODEC.”
3Click the “Output” tab and under “Choose a device for
sound output” select “USB Audio CODEC.”
•Is the sound output of the Cubase LE application assigned
properly?
For setup details refer to page 10 of the Quick Guide.
The recorded sound is too low in level.
• Is the computer’s output level setting too low?
We recommend that you set the computer output to the
maximum level.
Windows:
1From the [Start] menu click [Control Panel], then
double-click “Sounds and Audio Devices” icon to open
the “Sounds and Audio Devices Properties” dialog
window.
2Double click the “Volume” tab.
3Set “Device volume” to “High.”
Macintosh:
1Select [System Preferences …] from the Apple menu and
then select “Sound” to open the “Sound” dialog window.
2Click the “Output” tab and set the volume slider at the
bottom of the window to it’s maximum level.
• Have you connected or disconnected the USB cable while
Cubase LE is running?
Doing so can sometimes cause the Windows output level to
be reset to its default level. Check and raise the output level if
necessary.
The sound is intermittent or distorted.
• Is the PEAK indicator flashing red?
You might have to lower GAIN control or channel fader levels
to avoid distortion.
• Does the computer you are using meet the listed system
requirements?
Refer to “System Requirements” on page 6 for details.
• Are any other applications, device drivers, or USB devices
(scanners, printers, etc.) running at the same time?
Be sure to quit all applications you are not using.
• Are you playing back a large number of audio tracks?
The number of tracks you can play at the same time will
depend on the performance of the computer you are using.
You may experience intermittent playback if you exceed your
computer’s capabilities.