User Manual

En 31
Troubleshooting
Refer to the table below when the unit does not function properly. If your problem is not listed below or if the instruction below does not help, turn off the unit,
disconnect the power cord, and contact the nearest authorized Yamaha dealer or service center.
First, check that the connectors of each cable are securely inserted in to jacks on each device. Check also that the power cord is plugged into an outlet.
General
Problem Cause Solution
The unit enters the standby mode soon
after the power is turned on.
The unit does not operate properly.
The power cord is not properly connected. Connect the power cord firmly.
The internal microcomputer has frozen due to an external electrical shock
(lightning, excessive static electricity, etc.) or a drop in power supply
voltage.
Press and hold z on the front panel for more than 10 seconds to initialize
and reboot the unit. If the problem persists, 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.
No appropriate input source has been selected.
Select an appropriate input source with INPUT on the front panel or the
input source buttons on the remote control (& p. 11, 14).
Speaker connections are not secure. Secure the connections (& p. 15).
The volume is minimum or mute. Turn up the volume.
Sound is heard from the speaker on one
side only.
The external device or speakers are not connected properly.
Connect the external device or speaker cables properly (& p. 15, 27). If the
problem persists, the cables may be defective.
Noise is heard.
This unit is too close to digital or radio-frequency equipment. Move this unit away from such equipment.
The audio cable used to connect the unit and external device may be
defective.
Connect the audio cable firmly. If the problem persists, use another audio
cable.
The power suddenly turns off.
The sleep timer may be set (& p. 17).
Turn on the unit and play the source again.
Auto Power Standby function is activated (& p. 17).
There is noise interference from digital or
high-frequency equipment.
This unit is too close to the digital or high-frequency equipment. Place this unit farther away from such equipment.