User Manual

26
Troubleshooting
Refer to the table below if the unit fails to function properly. If the problem is not listed, or if the symptoms persist after following the instructions provided, turn off the unit,
disconnect the unit from the electrical outlet, and contact your nearest authorized Yamaha dealer or service center.
General
Problem Cause Solution
The unit is not on.
The touch sensors do not respond.
A touch sensor was tapped or touched inadvertently while the
unit was starting up (a period of approx. five seconds after the
power cable is plugged into an electrical outlet).
Avoid tapping or inadvertently touching the touch sensors while
the unit is starting up. Do not attempt to turn on the unit until
start-up is complete (& p. 5).
The unit turns off as soon as it is powered on.
The unit does not operate properly.
The power cord is not properly connected. Be sure that the power cord is firmly inserted into the power
connector jack on the unit and the electrical outlet.
The unit cannot be operated. The internal microcomputer has frozen due to an external
electrical shock (lightning, excessive static electricity, etc.) or a
drop in power supply voltage.
Unplug the unit from the electrical outlet, wait for at least 30
seconds, and then plug the unit into the electrical outlet again.
No sound comes from the unit. An input source has not been properly selected. Use the MusicCast CONTROLLER app or on the unit’s control
panel to select an input source (& p. 8).
The external devices are not firmly connected to the AUX 1, AUX 2,
or DIGITAL jack.
Confirm the external devices are firmly connected to the unit’s
jacks. If there are no problems with connection, check that cables
may be damaged.
The volume level is set to the minimum level or volume is muted. Increase the volume.
Interference from nearby electronic equipment
is producing noise.
The unit is too close to other electronic equipment. Position the unit farther away from other electronic equipment.