Sony STR-DH750 Help Manual page 209

Help Guide
MULTI CHANNEL AV RECEIVER
STR-DH750/STR-DH550
Severe humming or noise (for STR-DH750 only).
If there are obstructions between the receiver and your BLUETOOTH device, remove them or move the
receiver and/or device avoid them.
If there is a device that generates electromagnetic radiation, such as a wireless LAN, other BLUETOOTH
device, or a microwave oven nearby, move it away.
Turn down the volume of the connected BLUETOOTH device.
Notes on use
4-488-933-11(1)
Copyright 2014 Sony Corporation
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