Integra DTM-7 - Resolving Unit Noise and Interference

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Advanced Setup | Supplementary Information | Others
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Strange noises can be heard from the unit
0 If you have connected another unit to the same wall
outlet as this unit, this noise may be an effect from the
other unit. If the symptoms improve by unplugging the
power cord of the other unit, use different wall outlets for
this unit and the other unit.