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The AMP1-16-3G and AMP1-E16-3G are Wohler’s first 1RU,
16-channel, 3G audio/video monitors. These units come with three 2.4”
video screens and an easy-to-use configuration interface that provides
flexible audio metering, video monitoring, and other data display.
CHAPTER 1
Quick Start
Topics
TopicsPage
Quick Start1
Safety Instructions2
Installation Recommendations3
FCC Compliance3
Using the Monitor4
Getting Started6
Configuring the System8
1.Read, keep, and follow all of these instructions; heed all warnings.
2.Do not use this equipment near water.
3.Use only a dry cloth to clean the equipment.
4.Do not block any ventilation openings. Install only in accordance
with the instructions in the section entitled, “Installation
Recommendations” on page 3.
5.Do not install near any heat source such as a radiator, heat register,
amplifier, or stove.
6.Do not expose the equipment to rain or moisture.
7.Do not attempt to plug the unit into a two-blade outlet (with only
two prongs of equal width).
IMPORTANT:
By design, this monitor will only plug into a three-prong outlet for
your safety. If the plug does not fit into your outlet, contact an
electrician to replace the obsolete outlet.
8.Protect the power cord from being walked on or pinched,
particularly at plug’s source on the equipment and at the socket.
9.Use only the attachments/accessories specified by the
manufacturer.
10.Unplug the equipment during lightning storms or when unused
for long periods of time.
11.Refer all servicing to qualified service personnel. Servicing will be
required under all of the following conditions:
•The equipment has been damaged in any way, such as when
the power-supply cord or plug is damaged.
•Liquid had been spilled or objects have fallen onto the
equipment.
•The equipment has been exposed to rain or moisture.
The unit is designed to install into a standard 19" rack, mounted at eye
level for best visual observation of the monitor screens. After installing
the AMP1-16-3G, remove the clear, plastic protective covers from each
screen using the tabs provided.
Heat Dissipation
The ambient temperature inside the mounting enclosure should not
exceed 40° Celsius (104° Fahrenheit). Adjacent devices can be rack
mounted (or stacked) in proximity to the unit if the above temperature
is not exceeded. If the product must be operated in an environment
with an elevated temperature, allow a 1RU (1.75”/44.45mm) space
above and below the unit for air circulation.
Important:
To reduce noise, neither the AMP1-16-3G nor the AMP1-E16-3G have
any fans. As a result, the heat generated by the class D power
amplifiers, power supplies, and other components is vented by slots in
the sides of the unit. Therefore, as a safety precaution, we advise you to
be sure to allow proper ventilation on both sides of the unit.
Power
The AMP1-16-3G has a standard IEC connector on the rear panel from
which it can connect to AC mains power (100 to 240 VAC ± 10%, 50/60
Hz, 65W). You may use the power cord provided, or another approved
cord, to adapt the unit to the proper country-specific power connection.
FCC Compliance
This equipment has been tested and found to comply with the limits for
a Class A digital device, pursuant to part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is
likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
Using the Monitor
This section provides a brief overview of the controls on the front
panel, and the connectors on the back panel of the monitor.
Front Panel
Figure 1–1Front Panel Layout
Speakers: Audio monitoring is achieved through the use of class D
amplifiers driving two (left/right) wide range speakers.
Headphone Jack: A class B amplifier drives the front panel 3.5 mm
jack for an optional headphone.
Balance and Volume Rotary Knobs: Control knobs are on the left and
right of the front panel video displays. The left knob controls the
Volume and the speaker output and can be programmed to control the
AES and Analog outputs. Pressing this control drops the internal
speaker volume by 20 dB. Pressing it a second time mutes the internal
speakers entirely. Pressing it a third time brings the internal speaker
volume back to normal. Turning the knob to increase the volume
increases it from the current volume, whether from the 20dB dip or
from the completely muted state.
Back Panel
The right knob adjusts the
Balance between the speakers. Pressing the
knob returns the audio balance to center. This knob is also used for
setting adjustments when programming the options and features in the
configuration menus.
Video Screen: This monitor (left) displays either video and/or data
such as help for the
Menu and Data Screens.
Menu and Data Screens: These two screens on the right work together
to display bar graphs and the configuration menus.
Hot Keys/Push Buttons: Ten buttons are used for menu navigation
and hot key access to solo, mute, and preset functions.
The AMP1-16-3G and AMP1-E16-3G back panel contains all of the
connectors except for the headphone jack as shown in Figure 1–2
below.
Figure 1–2Back Panel Layout
•Power: The AMP1-16-3G and AMP1-E16-3G use a standard IEC
power cord for the 100 to 240 VAC power connection.
•Ethernet: The Ethernet port is used for system software upgrades.
•Serial: This DB-9F connector is used for system software upgrades.
•Analog Outputs: This DB-25F connector provides eight channels of
balanced analog outputs.The source of these signals is controlled by
the setup menus. (The pin out of this connector is shown in Table 2–
3 on page 17.)
•AES Outputs: Each of these two HD-15F connectors supplies four
pairs of unbalanced AES outputs for a total of eight. The source of
these signals is determined by the setup menus. (The pin out of
these connectors is shown in Table 2–2 on page 16.)
•AES Inputs: Each of these eight BNC connectors provides an
unbalanced AES input. The monitoring of these signals is
determined by the setup menus.
•3G/HD/SD-SDI Inputs: These two BNC connectors input two
separate SDI signals. Front panel controls select between the two for
monitoring or down converting.
•3G/HD/SD-SDI Re-Clocked Output: This BNC connector outputs
a re-clocked replica of the selected 3G/HD/SD-SDI input signal.
Getting Started
Once you have connected a 3G/HD/SD SDI video signal to one of the
video inputs on the back of the unit, it should display on the video
monitor after a few seconds.
Figure 1–3Video Monitor Display (Left)
To begin any procedure on the AMP1-16-3G or the AMP1-E16-3G,
powering up the system should display the video input on the left
The AMP1-16 Series monitors are primarily designed to monitor audio
and video. Configuration options include specifying channels to
monitor, phase indicators, setting audio delay, and individual channel
volume controls.
CHAPTER 2
Topics
TopicsPage
Introduction9
Configuration Options10
Configuring the Audio Outputs10
Level Metering18
The AMP1-16 Series monitors are very flexible and can be configured to
adapt to almost any audio configuration. The available adjustments are:
•Selecting the inputs (signal sources) to monitor
•Trimming the volume of each channel
•Indicating the phase relationship of each channel pair
•Muting the audio output of the speakers
•Selecting the signal sources for the AES and analog rear panel
outputs
•Selecting the Mo nitor Downmix
•Setting the audio delay for video synchronization
Configuring the Audio Outputs
Overview
You can route the digital audio signals at the inputs of the AMP1-16-3G
Series monitors to the front panel speakers or to the outputs, depending
on your needs. The internal routing paths are controlled by the settings
in the setup menus. The following diagram (Figure 2–1) shows the
relationship between the internal routing paths and the various menus
that control the signal flow.
The colors in this diagram represent various audio formats or levels of
processing. Each menu will select, route, or adjust the audio paths.
Further detail on each of these menus is available in Chapter 5: Menu
List on page 39.
Note that you can set up multiple audio paths. For example, while
monitoring de-embedded SDI audio channels through the speakers,
you may independently decode Dolby channels from an AES stream,
convert them to analog, and output them. Setups like this can be stored
as presets and recalled later. See Chapter 4: Efficiency Enhancements on
page 25.
Figure 2–1Audio Routing Diagram
Surround Sound
If a studio or other monitoring environment contains a surround sound
system, it may be advantageous to connect the monitored sound from
the AMP1-16 Series monitor to this system. Up to eight pairs (16
channels) of AES outputs or four pairs (eight channels) of analog
outputs are available for this use. The front panel Volume, Balance,
and solo, and mute controls will then optionally affect the surround
sound. You can easily configure this in the
Analog Output Configuration Menus as described below.
If a studio or other monitoring environment contains a stereo sound
system, it may be advantageous to connect the monitored sound from
the AMP1-16 Series monitor to this system. One or more of the AES or
Affected by Solos and Mutes button.
Volume control (available per channel pair),
button.
Chapter 2Audio and Metering
AES Output Configuration Menu
AES Output Channels 5/6AES Output Channels 7/8
+0+0+0+0
Level Trim
65658787
Affected by
Volume Control
Affected by
Solos & Mutes
Output Mute
With Headphone
AES Output =
Selected Sources
No
No
No
No
Yes
SDI In Channels 7/8SDI In Channels 5/6
Channel Output
AES Channel Pair
Configuring the Audio Outputs
analog output pairs are available for this purpose. The front panel
Volume, Balance, and solo controls will then affect the stereo
downmix output sound. You can easily configure a stereo downmix in
the AES Output Menu and the Analog Output Menu. Note that the
stereo downmix will also be affected by the trim, speaker assign, and
delay in the
trim, channel output, and mute with headphone settings in the
Output Menu
Monitor Mixer Configuration Menu, and also by the
AES
/Analog Output Menu.
The Monitor Downmix pair is one of the sources listed on the AES
Output Configuration Menu
Configuration Menu
. Configure either menu as follows.
and the Analog Output
1.From the Main Screen, press either the button or the
button to display the Configuration Menu.
2.From the Configuration Menu, select either the AES Output
Configuration Menu
Menu
depending on the output type you want to use. In our
or the Analog Output Configuration
example, we’re using the AES Output Configuration Menu.
3.If needed, press the AES Output = Monitor Channels button
and then press the Balance knob to display AES Output =
Selected Sources
See Figure 2–3 on page 13. In our example, the AES Output
Configuration Menu
Sources
“matching” inputs (5 and 6) and outputs (5 and 6). We’ll modify
this in the next step.
Figure 2–3Select AES Output = Selected Sources
.
displayed with AES Output = Selected
so we didn’t need to change that. But it did display
Any monitored input can be routed to any AES or analog output pair.
This powerful feature will allow de-embedded, Dolby decoded, or
other digital or analog audio to be used by other products. The audio
that is output doesn’t necessarily need to be monitored by the meters or
speakers. You can easily configure this in the AES Output Menu and
the Analog Output Menu.
The AMP1-16 Series monitors contain both AES and analog outputs.
The sources of these outputs are set using the AESOutput
Configuration Menu
The parameters that these menus adjust are as follows:
1.You can map either or both of these output ports pair-wise either
to the channel pairs that are metered and audibly monitored, or to
a selection of the SDI and AES inputs.
Chapter 2Audio and Metering
Configuring the Audio Outputs
and Analog Output Configuration Menu.
2.If you map the output ports to the metered (and audibly
monitored) channel pairs, then you can also specify whether the
outputs should be affected by the:
A.Solo and Mute hot keys,
B.Front panel Volume control and Balance knobs, and/or
C.Insertion of a headphone in the front panel jack.
These settings are for typical use with an external surround sound
system.
3.If you map the output ports to selected sources, then you can use
them in a variety of useful roles, independent of monitoring and
metering. For example:
A.The SDI input pairs can be de-embedded into AES streams or
into analog audio.
B.The AES input pairs can be swapped pair-wise under control
The AMP1-16 Series monitors are capable of showing 16 level meters
simultaneously along with a loudness indication. The signals for the
level metering are always the same ones that are monitored through the
Monitor Mixer Menu, which also controls the internal speakers.
These signals may be de-embedded SDI audio, AES audio, decoded
Dolby, or a combination of input types.
Figure 2–6 illustrates the menus used to modify the audio meters: the
various signal inputs, the menus used to configure them, and their
outputs.
The AMP1-16-3G will display a variety of 3G, HD, and SD video
formats. It supports two 3G SDI inputs that can be alternately selected.
The selected SDI input is reclocked and output.
The video signal paths within the AMP1-16-3G are set up using the
menu screens.
Figure 3–1 illustrates the menus used to modify the video signals, the
various signal inputs, the menus used to configure them, and their
outputs.