Sony STR-AZ3000ES Startup Manual page 427

Help Guide
Multi Channel AV Receiver
STR-AZ7000ES/STR-AZ5000ES/STR-AZ3000ES
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.
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