Getting started – checking the hardware, Signal meters – Allen&Heath iDR-4 User Manual

Page 20

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20

IDR-4 User Guide

Getting Started – Checking the Hardware

The iDR-4 is supplied with its settings pre-configured so that you can turn it on and
immediately get audio passing through it. This can be useful when you are installing a unit
on site and need to carry out initial tests on the hardware before the custom configuration
software is loaded. This can be done without the need to connect your PC and run the iDR
System Manager software. When shipped, the iDR-4 is loaded with the DEFAULT
configuration. The iDR software provided with the unit also includes this configuration file
so that you can load it again later if you want to restore the default settings.

The diagram above shows how the LCD, soft keys and soft
LEDs are assigned when you turn the unit on for the first time.

You can plug your test source such as a music CD into the
inputs, and route the outputs to your system amplifiers. You
should see the source signals displayed on the left hand soft
LEDs and the output signals displayed on the right. Note that
the input preamp gains default to 0dBu line level sensitivity with
pad selected and phantom power off. To properly test
microphone sources you need to run iDR System Manager
software and correctly set the gains.

The channel faders default to fully off. The soft keys are
assigned as level up/down selects to move the input and
output channel faders up and down. Use key 4 and 8 to select
either 1-3 or 4-6 for level control. Press the soft key for the
channel you want. Now use the two middle keys to scroll the
volume up or down. These time out after 2 seconds of
inactivity. You should see the level displayed as a bar and
number on the LCD display.

To get audio to pass through the unit you need to raise both
the input fader and the required output fader. In this default
configuration all inputs are routed through the matrix to all
outputs. You can use one input to test each output by raising
the output levels in turn. Similarly, you can use one output to
test all input sources.

To test the iDR-in and/or iDR-out expanders, if connected, you
need to remove the face plate and use the *1 Patch Select
setup menu to select Patch 2 (in) or Patch 3 (out). Use the
keys to select expander 1 to 8 level as shown above. Select
Patch 1 to return to the iDR-4 in/out test.

With the face plate removed you can use the Setup menus to
adjust the time and day setting, change the unit name, and
enter the communication settings ready to connect your PC.

For information on configuring the system run the iDR System
Manager software and refer to its Help file.

I/P1 LEV 92

I/P1 LEV 100

I/P1 LEV 0

Fader off

Fader 0dB

Fader +5dB

Green

Yellow

-24dBu signal present

0dBu normal level

+14dBu 4dB below clipping

Red

Signal Meters

The levels can be adjusted from ‘0’ (off) to ‘100’
(+5dB boost). To set the fader to its 0dB unity
position raise the level bar until it reads ‘92’.
Note that all the channel processing such as
equalisers and compressors is set flat or out. If
you set both the input and output levels to ‘92’
then you should get 0dB unity gain through the
unit.

AUDIO INPUT EXPANDER

iDR-in

AUDIO OUTPUT EXPANDER

iDR-out

I/P METERS 1-8

1

2

3

4

5

6

7

8

O/P METERS 1-8

iDR-4

AUDIO MIX PROCESSOR

<

I/P LEVEL

1

< LEVEL >

iDR Unit Name

Wed 13:44:08

2

3

1-3

I/P METERS

4

5

6

4-6

SELECT

O/P LEVEL

1

2

3

1-3

O/P METERS

SELECT

1

2

3

4

4

5

6

4-6

5

6

7

8

Patch 2 : iDR-in (I/P EXPANDER)
Patch 3 : iDR-out (O/P EXPANDER)

Patch 1 : iDR-4

menu

*** Setup ***

*1 Patch Select

METER

LEVEL

< LEVEL >

METER

LEVEL

1

2

3

4

5

6

7

8

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