Troubleshooting
Are the connections correct?
Is the set being operated as described in the owner’s manual?
Are the other devices operating properly?
If this unit does not operate properly, check the items listed in the table below.
Should the problem persist, there may be a malfunction. In this case, disconnect the power immediately and contact your store of purchase.
Power does not turn on / Power is turned off
Check whether the power plug is correctly inserted into the power outlet.
This unit is in standby mode. Press 
on the unit or POWER on the remote control.
LED is flashing
A circuit in the unit has malfunctioned. Disconnect the power and contact the repair center.
Operations cannot be performed through the remote control unit
Batteries are worn out. Replace with new batteries.
Operate the remote control unit within a distance of about 23 ft/7 m from this unit and at an angle of within 30°.
Remove any obstacle between this unit and the remote control unit.
Insert the batteries in the proper direction, checking the 
and 
marks.
The set’s remote control sensor is exposed to strong light (direct sunlight, inverter type fluorescent bulb light, etc.). Move the set to a place in which the remote control sensor will not be exposed to strong light.
When using a 3D video device, the remote control unit of this unit may not function due to effects of infrared communications between units (such as TV and glasses for 3D viewing). In this case, adjust the direction of units with the 3D communications function and their distance to ensure they do not affect operations from the remote control unit of this unit.
When using this unit independently, set the switch to “INTERNAL”.
Display on this unit shows nothing
Press DIMMER, and change the setting to anything other than off.
No sound comes out
Check the connections for all devices.
Insert connection cables all the way in.
Check that input connectors and output connectors are not reversely connected.
Check cables for damage.
Check the amplifier’s functions and controls and adjust as necessary.
Sound is interrupted or noise occurs
When the transfer speed of the USB memory device is slow, sound may occasionally be interrupted.
The network communication speed is slow or the radio station is busy.
When making a call, keep a distance of 20 cm or longer between iPhone and this unit.
If nearby devices cause playback to cut out due to electronic interference, switch to a wired LAN connection.
Particularly when you play back large music files, depending on your wireless LAN environment, the playback sound may be interrupted. In this case, make the wired LAN connection.
iPod cannot be played back
When using iPod by connecting it to the USB port, some iPod variations are not supported.
When iPod is connected by using a USB cable other than the genuine cable, iPod may not be recognized. Use a genuine USB cable.
This unit and PC / iPhone / iPod touch / iPad are not connected to the same network (LAN). Connect it to the same LAN as this unit.
The firmware on iTunes / iPhone / iPod touch / iPad is not compatible with AirPlay. Update the firmware to the latest version.
The AirPlay playback is not performed, or this unit is not selected. Click the AirPlay icon 
on the iTunes / iPhone / iPod touch / iPad screen and select this unit.
Quit the application running in the background of the iPhone/iPod touch/iPad, and then play using AirPlay.
Some external factors may be affecting the wireless connection. Modify the network environment by taking measures such as shortening the distance from the wireless LAN access point.
USB memory devices cannot be played back
This unit may not recognize the USB memory device due to poor connection, etc. Make sure that the connection is made properly by taking actions such as disconnecting and reconnecting the USB memory device.
USB memory devices of a mass storage class or those compatible with MTP are supported.
This unit does not support a connection through a USB hub. Connect the USB memory device directly to the USB port.
The USB memory device must be formatted to FAT16 or FAT32.
Not all USB memory devices are guaranteed to work. Some USB memory devices are not recognized. When using a type of portable hard disc drive compatible with the USB connection that requires power from an AC adapter, use the AC adapter that came with the drive.
Files of a type not supported by this unit are not displayed.
This unit can display a file structure with up to 8 levels and up to 5000 subfolders and files in total. Modify the folder structure of the USB memory device.
When multiple partitions exist on the USB memory device, only files on the first partition are displayed.
Files are created in a format that is not supported by this unit. Check the formats supported by this unit.
Files that are copyright protected cannot be played on this unit.
You are attempting to play a file that is copyright protected. Files that are copyright protected cannot be played on this unit.
File names on the iPod/USB memory device are not displayed properly
Characters that cannot be displayed have been used. On this unit, characters that cannot be displayed are replaced with a “.” (period).
The Internet radio cannot be played back
The LAN cable is not properly connected, or the network is disconnected. Check the connection status.
The selected radio station is broadcasting in a format that is not supported by this unit. Formats that can be played back in this unit are MP3, WMA and AAC.
The firewall function is enabled on the router. Check the firewall setting.
Check the power of the router is on.
The IP address is not properly set. To obtain the IP address automatically, enable the DHCP server function on the router. Also, set the DHCP setting to “On” on this unit.
To obtain the IP address manually, set the IP address and proxy on this unit.
Some radio stations broadcast silently during some time period. In this case, no audio is output. Wait for a while and select the same radio station, or select another radio station.
Radio station is not currently in service. Register radio stations in service.
The selected radio station is not in service. Select a radio station in service.
Music files on PC or NAS cannot be played back
Files are stored in a non-compatible format. Record in a compatible format.
Files that are copyright protected cannot be played on this unit.
Media sharing settings are not correct. Change media sharing settings so that the unit can access the folders on your computer.
The computer’s or router’s firewall is activated. Check the computer’s or router’s firewall settings.
Computer’s power is not turned on. Turn on the power.
Server is not running. Launch the server.
Set’s IP address is wrong. Check the set’s IP address.
Files of a type not supported by this unit are not displayed.
If you use a NAS in conformity with the DLNA standard, enable the DLNA server function in the NAS setting.
If you use a NAS that does not conform with the DLNA standard, play the music via a PC. Set Windows Media Player’s media sharing function and add NAS to the selected play folder.
If connection is restricted, set audio equipment as the connection target.
Audio from digital devices cannot be played back (Optical)
When digital audio signals cannot be detected properly, “Signal Unlock” is displayed.
“Unsupported” is displayed when audio signals that are not supported by this unit are input. Check the audio output signal format from your digital device.
Cannot connect by Wi-Fi
The network name and password (WEP, etc.) settings are wrong. Configure the network settings according to the setting details of this unit.
Reduce the distance between the wireless LAN access point and this unit, remove any obstructions and make sure the view to the access point is unobstructed before trying to connect again. Also, install microwave ovens and other network access points as far away as possible.
Check the router power supply.
This unit supports IEEE802.11.b/g/n.
Configure the access point channel settings away from channels that are being used by other networks.
This unit is not compatible with WEP (TSN).
Check that the WPS mode of the router is operating.
Press and hold the Wi-Fi CONNECT WPS button on this unit for approx. 3 seconds within 2 minutes of operating the router.
A router/settings that are compatible with WPS 2.0 standards are required. Set the encryption time to “None”, “WPA-PSK (AES)” or “WPA2-PSK (AES)”.
If the router encryption method is WEP/WPA-TKIP/WPA2-TKIP, you cannot connect by using the Wi-Fi CONNECT/WPS button. In this case, use the “Auto-Scan” or “Manual” method to connect.
Update the iPhone/iPod touch/iPad firmware to the latest version.
When using a USB cable to configure the settings, the iOS device firmware version needs to support iOS 5 or later. When configuring the settings via a wireless connection, iOS 7 or later needs to be supported.
Bluetooth cannot be played back
The Bluetooth function in the Bluetooth device has not been enabled. See the Owner’s Manual of the Bluetooth device to enable the Bluetooth function.
Bring the Bluetooth device near to this unit.
The Bluetooth device cannot connect with this unit if it is not compatible with the A2DP profile.
Turn the power of the Bluetooth device off and on again, and then try again.
Set “Network Control” to “On” and connect again.
Bring the Bluetooth device near to this unit.
Remove obstructions between the Bluetooth device and this unit.
To prevent electromagnetic interference, locate this unit away from microwave ovens, wireless LAN devices and other Bluetooth devices.
Reconnect the Bluetooth device.