There Is Severe Humming Or Noise - Sony STR-ZA3100ES Help Manual

Multi channel av receiver

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MULTI CHANNEL AV RECEIVER

STR-ZA3100ES/STR-ZA2100ES/STR-ZA1100ES

There is severe humming or noise.

Check that the speakers and device are connected securely.

Make sure that the connecting cables are not near a transformer or motor.

Move your audio device away from the TV.

The plugs and jacks are dirty. Wipe them with a cloth slightly moistened with alcohol.

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Str-za2100es Str-za1100es