Owner`s manual

I N S T A L L A T I O N a nd P OWE R
page 1 – 4
RD-12 / March 99
TIE THE CONSOLE GROUND LUG TERMINAL STRIP TO THE
SYSTEM EARTH GROUND. TIE EVERY PIECE OF EQUIPMENT IN
THE ENTIRE AUDIO SYSTEM TO THE CONSOLE GROUND LUG
TERMINAL STRIP. If the system earth ground point is inaccessible, tie
the console ground terminal strip to the power company earth conductor
at the main breaker box (see drawing "Typical Grounding Scheme" on
previous page).
Each piece of equipment should be connected by its own ground wire
(usually the round third pin on the AC cord). This means that every AC
outlet must have a separate conductor run to the console ground lug
terminal strip; the outlets cannot be daisy-chained as is normally encoun-
tered in commercial and residential AC systems. Any equipment not
supplied with 3-wire AC cables must have individual ground wires (16
gauge or larger) connected to their chassis grounds and then run to the
console ground lug terminal strip.
Further Grounding Details
Check all equipment to be absolutely certain that each unit is power
transformer isolated from the AC mains to prevent safety hazards.
It is assumed that in each piece of audio equipment the audio ground
and the chassis are tied together at some point. Any piece of equipment
lacking a grounded chassis is likely to be prone to interference problems.
Locate all unbalanced audio equipment in the same rack if possible, to
minimize chassis ground potential differences. It may also be helpful to
insulate each piece of unbalanced equipment from its mounting rails in the
rack by means of nylon 10-32 screws and insulating washers between rails
and faceplates.
Once the system is properly grounded, proceed with the console
power supply installation and connection (next section).
Power Supplies
The RD console is powered by an Audioarts Model SPS-180R
rackmount power supply. This unit occupies two 19” wide rack spaces
(total height 3-1/2”). Convection cooled, it requires ample ventilation
space above and below it. The SPS-180R generates a lot of heat in the
course of normal operation — do not mount heat sensitive devices in the
same rack cabinet.
Note the power supply should be mounted in an equipment rack within
fifteen feet of the console (but no closer than 3 feet). Avoid locating any
high gain equipment (such as phono preamps, tape recorders, etc.) too near
the rackmount supplies, to avoid magnetic interference into that equip-
ment.
This power supply contains high voltage circuits that are hazardous and
potentially harmful. Under no circumstances should the metal cover be
removed! If you have a problem with the power supply, the SPS-180R unit
must be returned to Audioarts for repair.
RD-12 / Nov 03