Sony STR-DN1080 Manual page 201

[265] Troubleshooting
When the music on the USB device is played back,
there is noise, skipping, or distorted sound.
Turn off the receiver, reconnect the USB device, and then turn on the receiver.
Check if the music data itself contains noise, or the sound is distorted.
[266] Troubleshooting
A USB device is not recognized.
Turn off the receiver, then disconnect the USB device. Turn on the receiver again and
reconnect the USB device.
Connect a compatible USB device.
The USB device does not work properly. Refer to the section on how to deal with this
problem in the operating instructions of the USB device.
[267] Troubleshooting
Playback does not start.
Turn off the receiver, reconnect the USB device, and then turn on the receiver.
Connect a compatible USB device.
Select [USB (Connected)] on the Listen screen and select a folder/track, then press
start playback.
The receiver can recognize and play up to the following files or folders in USB devices:
up to folders in the 9th layer (including the root folder)
up to 500 files/folders in a single layer
[268] Troubleshooting
A USB device cannot be connected to the USB port.
The USB device is being connected upside down. Connect the USB device in the correct
orientation.
Check the shape of the USB device's plug. If the shape does not fit the receiver's port, you
will not be able to connect the USB device to the receiver.
USB devices
USB devices
USB devices
USB devices
to