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MULTI CHANNEL AV RECEIVER
STR-DH750/STR-DH550
There is severe humming or noise.
Check that the speakers and device are connected securely.
Check that the connecting cables are not near a transformer or motor, and are at least 3 meters (10 feet)
away from a TV set or fluorescent light.
Move your audio device away from the TV.
The plugs and jacks are dirty. Wipe them with a cloth slightly moistened with alcohol.
Notes on use
4-488-933-11(1)
Copyright 2014 Sony Corporation
Help Guide
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