Video off and display off modes (all models) – Sony DVP-NS999ES User Manual
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ES Series DVD-Video/CD/SA-CD Players; Version 3.0
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without the voids or gaps that permit vibration. This results in far less radiation,
far less hum.
All ES Series DVD players use an R-Core transformer. The transformer
pictured here powers the audio circuits of the DVP-NS999ES. The
round core with cylindrical cross section enables far more consistent
transformer windings—for far less radiated hum.
Video Off and Display Off modes (all models)
One potential concern with so many types of circuitry in one chassis is
mutual interference. Sony minimizes the possibility of radiated interference with
power-off configurations that shut down potential sources of noise:
Video Off. Shuts down the video circuitry to eliminate its effect on the audio
circuitry.
Display Off. Disables the display for a further reduction in noise.