Error indications on the front display

Refer to the following table when the error message is indicated on the front display.

Message	Cause	Remedy
Check SP Wires	The speaker cables are short circuited.	Twist the bare wires of the cables firmly and connect to the unit and speakers properly. For details, see the following: “Connecting the speaker”
Access denied	Access to the media servers (PCs/NAS) is denied.	Configure the sharing settings and select the unit as a device to which music contents are shared.
Access error	The unit cannot access the USB device.	Turn off the unit and reconnect your USB device. If the problem persists, try another USB device.
Access error	There is a problem with the signal path from the network to the unit.	Make sure your router and modem are turned on, and check the connection between the unit and your router (or hub). For details, see the following: “Connecting a network cable (wired connection)” “Preparing wireless antennas (wireless connection)”
Unable to play	The unit cannot play back the songs.	Ensure that the files are types that the unit is able to play back. If the unit supports the file format, but still cannot play back any files, the network may be overloaded with heavy traffic. For information about the formats supported by the unit, see the following: “Supported file formats”
USB Overloaded	An overcurrent is flowing through the USB device.	Turn off the unit and reconnect your USB device. If the problem persists, try another USB device.
Internal Error	An internal error has occurred.	Contact the nearest authorized Yamaha dealer or service center.
Remote ID Mismatch	The remote control IDs of the unit and the remote control are not identical.	Change the remote control ID of the unit or the remote control. For details, see the following: “Selecting the remote control ID”
Remote Sensor Off	The remote control sensor on the unit is turned off.	Turn on the remote control sensor on the unit. For details, see the following: “Setting the use of the remote control”
NOT FOUND	In “USB Update”, the firmware file stored on the USB flash drive was not found.	Check that the new firmware is stored on the USB flash drive. For details on downloads, visit the Yamaha website.
Version error	Firmware update failed.	Update the firmware again. For details, see the following: “Updating the firmware” “Updating the unit’s firmware via the network”
Update failed.	Firmware update failed.	According to the guidance displayed on the front display, update the firmware again.