Operation Manual

42
Troubleshooting
Bluetooth
®
Pairing cannot be completed.
• Check the Bluetooth
®
device condition.
The device cannot be connected.
• The pairing of the device was unsuccessful or
the registration has been replaced. Try re-
pairing the device. ( 28)
• This unit might be connected to a different
device. Disconnect the other device and try re-
pairing the device.
The device is connected, but audio cannot
be heard through this unit.
• For some built-in Bluetooth
®
devices, you have
to set the audio output to “SU-C550” manually.
Read the operating instructions for the device
for details.
The sound is interrupted.
• The device is out of the 10 m communication
range. Bring the Bluetooth
®
device closer to
this system.
• Remove any obstacle between this system and
the device.
• Other devices that use the 2.4 GHz frequency
band (wireless router, microwaves, cordless
phones, etc.) are interfering. Bring the
Bluetooth
®
device closer to this system and
distance it from the other devices.
• Select “Mode1” for stable communication.
( 29)
PC
The PC does not recognise this unit.
• Check your operating environment. ( 31)
• Restart the PC, turn this unit to standby and
on, and then reconnect the USB cable.
• Use another USB port of the connected PC.
• Install the dedicated driver if using a PC with
Windows.
Cannot find music files stored on the PC.
• When you play back music files over a network,
those that are not registered to its network
server are not displayed. For details, refer to
the operating instructions for your server.
Network
Cannot connect to the network.
• Confirm the network connection and settings.
( 18)
• If the network is set to be invisible, make the
network visible while you set up the network
for this unit or make a wired LAN connection.
• This system’s Wi-Fi security supports WPA2™.
Your wireless router must therefore be
WPA2™ compatible. For details on the security
supported by your router and how to change
the settings, please refer to the operating
instructions or contact your internet service
provider.
• Make sure that the multicast function on the
wireless router is enabled.
• Depending on the router, WPS button may not
work. Try other methods. ( 18)
• The wireless LAN environment or radio
interference in your area may cause connection
problem. In this case, try another connection
method. If the problem persists, make a wired
LAN connection. ( 18)
• While the AC mains lead is disconnected, the
LAN cable must be connected or disconnected.
Cannot select this system as the output
speakers.
• Make sure that the devices are connected to
the same network as this system.
• Reconnect the devices to the network.
• Turn the wireless router off and then on.
• Turn this unit to standby and on, and then
select this system as the output speakers again.