Allen&Heath GL3000 - Manual (Page 3)

GL3000 U SER G UIDE ISS .1 3
PRECAUTIONS.
z z z z z AC POWER: Check the power unit for correct AC mains voltage setting before switching on.
Allow adequate space around the unit for ventilation.
z z z z z CONNECTIONS: Use audio connectors and cables only for their intended purpose. Do not
connect any source of AC or DC power to the console audio connectors. Do not
connect the output of power amplifiers directly to the console.
z z z z z CLEANING: Avoid the use of chemicals, abrasives and solvents. The control panel is best
cleaned with a soft brush and lint-free cloth. To remove stubborn marks (such
as chinagraph pencil) isopropyl alcohol may be used.
z z z z z LUBRICATION: The faders, switches and potentiometers are lubricated for life. The use of
electrical lubricants on these parts is not recommended.
z z z z z DIRT, DUST, SMOKE and MOISTURE: Prevent damage to the moving parts, such as faders
and potentiometers, and cosmetics by avoiding drinks spill age, tobacco ash and
smoke, and exposure to rain and condensation. Protect from excessive dirt, dust,
heat and vibration.
INTRODUCTION
The GL3000 continues ALLEN & HEATH’s commitment to provide high quality audio mixing consoles
engineered to meet the exacting requirements of today’s audio business. It brings you the latest in high
performance technology and offers the reassurance of over two decades of console manufacture and
customer support.
This user guide presents a quick reference to the function, application and installation of the GL3000. For
further information on the basic principles of audio system engineering please refer to one of the specialist
publications available from bookshops and audio equipment dealers.
Whilst we believe the information in this guide to be reliable we do not assume responsibility for
inaccuracies. We also reserve the right to make changes in the interest of further product development.
SERVICE AND TECHNICAL SUPPORT
Under normal conditions the GL3000 does not require user maintenance or internal calibration. Any service
work required should be carried out by qualified service personnel only.
We are able to offer further product support through our worldwide network of approved dealers and
service agents. To help us provide the most efficient service please keep a record of the console serial
number, and date and place of purchase to be quoted in any communication regarding this product.
Mains electricity is dangerous and can kill. Mains voltage is present within the
power supply unit provided with the console. Do not remove the power unit cover with
mains connected. The correct mains voltage setting is indicated on the rear of the
power unit. Check your mains wiring and earthing before switching on.
DO NOT REMOVE THE MAINS EARTH CONNECTION!
The console chassis is connected to mains earth to ensure your safety. Audio
0V connects to the console chassis internally. Should problems be encountered with
ground loops operate the audio ground lift switches on connected equipment
accordingly or disconnect the cable screens at one end. Refer to the section on
'EARTHING' later in this User Guide.
SAFETY WARNING !
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