Dolby Laboratories CP500 Schematy referencyjne - Strona 2
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Proper Grounding of Equipment
(For non-EC countries only)
In the past it was assumed that if the units were mounted in the same rack that they would
be bonded together by way of the rack rails to the mounting ears. The paint used on
professional products has gotten much better in the last few years and this assumption is
generally no longer true. To ensure a good ground connection between units in the rack
and therefore a quiet system with no hum or noise it is highly recommended installing at
least one star washer for every piece of equipment. Insulating nylon or plastic washers
on the rack screws should not be used with the star washer. See figure below:
To optimize the grounding of the system you must add a jumper between signal ground
of the CP500 and the chassis. See figure below:
Connection of ground jumper and amplifier