Sony HT-CT790 Operating Instructions - Page 60
USB Device Connection, BLUETOOTH connection cannot
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To play multi-channel audio, check the digital audio output setting on the device connected to the system. For details, refer to the operating instructions supplied with the connected device. USB Device Connection The USB device is not recognized. Try the following: Turn the system off. Remove and reconnect the USB device. Turn the system on. Make sure that the USB device is securely connected to the (USB) port (page 24). Check to see if the USB device or a cable is damaged. Make sure that the USB device is on. If the USB device is connected via a USB hub, disconnect it and connect the USB device directly to the system. Mobile Device Connection BLUETOOTH connection cannot be completed. Make sure that the BLUETOOTH indicator of the unit is lit (page 31). Make sure the BLUETOOTH device to be connected with is turned on and the BLUETOOTH function is enabled. Bring this system and the BLUETOOTH device closer together. Pair this system and the BLUETOOTH device again. You may need to cancel the pairing with this system using your BLUETOOTH device first. Pairing information may be deleted. Perform pairing operation again (page 30). Pairing cannot be achieved. Bring this system and the BLUETOOTH device closer together. Make sure this system is not receiving interference from a wireless LAN device, other 2.4 GHz wireless devices, or a microwave oven. If a device that generates electromagnetic radiation is nearby, move the device away from this system. You cannot use the NFC function. The NFC function does not work with BLUETOOTH-compatible headphones or speaker. To listen to sound using a BLUETOOTH-compatible headphones or speaker, see "Listening to Sound of the Connected TV or Device from Headphones or Speakers" (page 33). No sound is output from the connected BLUETOOTH device. Make sure that the BLUETOOTH indicator of the unit is lit (page 31). Bring this system and the BLUETOOTH device closer together. If a device that generates electromagnetic radiation, such as a wireless LAN device, other BLUETOOTH devices, or a microwave oven is nearby, move the device away from this system. Remove any obstacle between this system and the BLUETOOTH device or move this system away from the obstacle. Reposition the connected BLUETOOTH device. Switch the wireless LAN frequency of any nearby Wi-Fi router or PC to 5 GHz range. Increase the volume on the connected BLUETOOTH device. 60US