IMPORTANT: This article applies only to specific products and/or operating systems. Check the Applicable Products and Categories section of this article before starting these steps.
When there is no sound output from the audio system or speaker while a Walkman® player or Xperia™ mobile device is connected to the USB REAR or USB-B port of the audio system or speaker, check any of the following:
- Make sure that the selected FUNCTION is the same as the connector to which the device is connected to. Select USB REAR or USB-B mode according to the connector used for the connected device.
- When the Bluetooth® function of both the Walkman player or the Xperia mobile device and the audio system or speaker is enabled and the devices are connected via the USB REAR or USB-B port at the same time, audio may be output via the Bluetooth connection. Disable the Bluetooth function of the Walkman player or the Xperia mobile device.