928 Mixing Console
General E 1/3
Edition: 07.02.01
Air flow
Air flow
Power connection: The attached female IEC 320/C13 mains cable socket has to be con-
nected to an appropriate mains cable by a trained technician, respect-
ing your local regulations. Refer to the “Installation, Operation, and
Waste Disposal” section at the beginning of this manual.
Maintenance work inside the units must be performed by a trained
technician.
Earthing: This equipment must be earthed, due to the mains input filter network
being connected to the mains earth.
Some consideration should be given to the earthing arrangement of
the system at the center of which is the console and the power supply
unit(s). The console chassis is earthed to the mains earth via the power
supply. If the power supply is rack-mounted care should be taken to
avoid any possible “ground loops” in the system; this would cause
audible hum to be introduced to an otherwise clean audio signal.
Ground loops may occur where signal processing equipment, patched
to the console, has its signal earth commoned to the equipment chas-
sis. The ground loop is formed if this chassis and the power supply
chassis are in electrical contact through fixing rails that they share in
the rack.
Tip-over protection: The console must be secured against tipping-over when a weight is
placed on the front rail of the console. For this purpose a bracket is
fixed to the bottom side of each console foot (3 countersunk-head chip-
board screws each). These brackets must then be screwed to the floor
with 3 pan-head chipboard screws each; refer to the drawing below.
Cable duct
pan-head chipboard screws
(3 pcs.) 5×30
Supply unit,
version 1.918.213.00
To Next Page
Loading...
