XMV4280/XMV4140 Owner’s Manual 23

Troubleshooting

* If taking the above steps does not solve the problem, contact your Yamaha dealer for repair.
Symptom Possible causes Possible solution
The power won’t turn on The power cord is disconnected Connect the power cord.
No sound is heard
The analog/digital input setting
is incorrect
From the front panel, check the analog/digital input
setting.
Double Power mode is selected
In Double Power mode, no audio signals will be out-
put from channel B or channel D. Either turn off Dou-
ble Power mode, or re-connect the cables.
An input/output cable is discon-
nected
Connect the input/output cables. Also, make sure
that the cables are securely connected.
The Mute function is turned on Make sure that the [MUTE] indicator is unlit. If it is lit,
turn Mute off.
The attenuator value is too low Check whether the attenuator value is appropriate.
No audio signal is being input
Make sure that an audio signal is being output from
the mixer or other device that is outputting audio to
the XMV.
The protection circuit has oper-
ated (the [PROTECTION] indi-
cator is lit)
Turn off the power, wait for the XMV to cool, and then
turn the power on again.
The unit is in standby mode (the
[POWER] indicator is blinking)
Make sure that the switch connected to the
[REMOTE] connector is turned on. Alternatively, use
the editor to check that this is turned on.
Some abnormality has occurred
on the MTX during digital input.
([YDIF] indicator)
Check the MTX. For details, refer to the MTX
Owners Manual.
Analog” input has been
selected on a device that is con-
nected via a YDIF connector.
Select “digital” input on the device. If you wish to use
the device for analog input, disconnect the device
from the YDIF network.
The [ALERT] indicator remains
blinking or lit even after you’ve
turned the power on/off
The device has failed The device has failed. Contact your Yamaha dealer
for repair.