here for a copy of the Air 1 USB Technical Manual

here for a copy of the Air 1 USB Technical Manual
R adio
AIR 1
Mixing Console
Technical Manual
December 2007
AIR 1 Radio Mixing Console Technical Manual - 2nd Edition
©2012 Audioarts® Engineering*
AUDIOARTS ENGINEERING
600 Industrial Drive
New Bern, North Carolina
252-638-7000
28562
*a division of Wheatstone Corporation
AIR 1 / Mar 2012
CONTENTS
AIR 1 Technical Manual
Table of Contents
Chapter 1 - Information and Power
Unpacking and Installing the Console......................................... 1-2
Power Supply.................................................................................. 1-3
Energizing....................................................................................... 1-3
Audio and Control Wiring.............................................................. 1-4
Unbalanced Connections (analog audio)....................................................................1-5
Hook-Ups......................................................................................... 1-5
MIC 1 and MIC 2 Inputs..............................................................................................1-5
LINE 3 IN through LINE 8 IN........................................................................................1-5
EXT IN..........................................................................................................................1-6
PGM 1 OUT and PGM 2 OUT.....................................................................................1-6
MONITOR OUT...........................................................................................................1-6
CUE.............................................................................................................................1-6
HDPN..........................................................................................................................1-6
TALLY...........................................................................................................................1-7
SPARE.........................................................................................................................1-7
Chapter 2 - Console Features
Overview.......................................................................................... 2-2
Inputs............................................................................................... 2-4
Analog Mono Mic Level Inputs....................................................................................2-4
Analog Stereo Line Level Inputs..................................................................................2-4
Outputs............................................................................................ 2-5
Program Outputs.........................................................................................................2-5
Monitor Output............................................................................................................2-5
Cue to Monitor.......................................................................................................2-5
Split Cue, Monitor..................................................................................................2-6
Split Cue, Headphone............................................................................................2-6
Monitor Mute..........................................................................................................2-6
On Air Tally.............................................................................................................2-7
USB Port.......................................................................................... 2-7
Using the USB Port.....................................................................................................2-8
... With a MAC.............................................................................................................2-8
... With a Windows® PC..............................................................................................2-8
Other Computers.........................................................................................................2-8
General Considerations...............................................................................................2-9
AIR 1 / Dec
Mar 2007
2012
page Contents – 1
CONTENTS
Chapter 3 - Controls and Functions
Input Section................................................................................... 3-2
Source.........................................................................................................................3-3
Program Assign...........................................................................................................3-3
Cue Button..................................................................................................................3-3
Fader...........................................................................................................................3-3
ON Button...................................................................................................................3-3
Master Section................................................................................ 3-4
Monitor........................................................................................................................3-5
Program Select.......................................................................................................3-5
EXT Switch.............................................................................................................3-5
Monitor Fader.........................................................................................................3-5
Cue Level Control...................................................................................................3-6
Headphone Fader...................................................................................................3-6
Meters.........................................................................................................................3-6
VU Meter Pair.........................................................................................................3-6
Meter Select Buttons..............................................................................................3-7
On Air LED...................................................................................................................3-7
Chapter 4 - Schematic and Load Sheet Drawings
Console Flow Diagram................................................................... 4-2
MBUSBA1-1 Mother Board
Schematic...................................................................................................................4-3
Load Sheet.................................................................................................................4-11
VUA1-2 Meters PCB
Schematic..................................................................................................................4-12
Load Sheet.................................................................................................................4-13
Appendices
Appendix 1
AIR 1 Console Performance Specifications.................................A-3
Appendix 2
Replacement Parts List..................................................................A-5
AIR 1 / Dec
Mar 2007
2012
page Contents – 2
INSTALLATION AND POWER
Installation and Power
Chapter Contents
Unpacking and Installing the Console......................................... 1-2
Power Supply.................................................................................. 1-3
Energizing....................................................................................... 1-3
Audio and Control Wiring.............................................................. 1-4
Unbalanced Connections (analog audio)....................................................................1-5
Hook-Ups......................................................................................... 1-5
MIC 1 and MIC 2 Inputs..............................................................................................1-5
LINE 3 IN through LINE 8 IN........................................................................................1-5
EXT IN..........................................................................................................................1-6
PGM 1 OUT and PGM 2 OUT.....................................................................................1-6
MONITOR OUT...........................................................................................................1-6
CUE.............................................................................................................................1-6
HDPN..........................................................................................................................1-6
TALLY...........................................................................................................................1-7
SPARE.........................................................................................................................1-7
AIR 1 / Dec 2007
page 1 – 1
INSTALLATION AND POWER
Installation and Power
Unpacking and Installing the Console
The AIR 1 console with its power supply, connecting cable, and technical manual is shipped in one packing box. The console can be unpacked
by one person by grasping the console at the both sides, and lifting it upward out of the box. Remove packing materials and store them in the box
for future use. Carefully place the console on your countertop (the AIR
1 audio console is designed for countertop placement). Avoid proximity
to any electromagnetic fields, such as large power transformers, motors,
and fluorescent lighting fixtures.
NOTE: This console
contains static-sensitive devices. Normal
precautions against
static discharge should
be observed.
15.19
11.51
2.44
11.51
1.28
AIR 1 / Dec 2007
page 1 – 2
INSTALLATION AND POWER
Power Supply
The AIR 1 console is powered by a factory supplied power adapter with 100-240V/50-60Hz input,
25W maximum output power, and a 4 foot long
output cable.
DC Power Output Pinout
5 2 4
3
1
PIN #
OUTPUT
1
COM
2
COM
3
+5VDC
4
-15V
5
+15V
The power supply adapter is supplied with a 3-wire grounded AC cord
that should be plugged into a “clean” AC power source, that is, an AC
source that feeds only the control room audio gear. This source should
be a separate feed from those powering lighting, air-conditioning, or any
other non-audio machinery.
The power feed recommended in the text is often
installed and referred to in
studios as an “isolated AC
ground” outlet. It is usually
orange in color.
Energizing
Assuming the AIR 1 console mainframe is properly placed, and its
power supply correctly connected to the console, you may now energize
the power supply adapter by plugging it into the AC mains. The console’s
switches will assume factory default settings.
Note: To de-energize the console, unplug the power supply adapter’s AC
cord from the AC mains. Never de-energize the console by disconnecting
the cable that connects the console and power supply adapter together.
Once you have verified proper power-up, unplug the rackmount power
supply to de-energize the control surface. You may now proceed to wire
up audio and control connections
AIR 1 / Dec
Mar 2010
2007
page 1 – 3
INSTALLATION AND POWER
Audio and Control Wiring
All audio I/O connections to the AIR 1 console are made via TRS and XLR connectors located on the rear panel of the console, except for the USB connection.
Two XLR female connectors are provided to bring balanced mono microphone level
signals into the console for control by the first two (microphone) faders. These XLR
connectors are wired “pin 2 hot.”
Six pairs of TRS (Tip-Ring-Sleeve) jacks are provided to bring balanced stereo line
level signals into the console for control by (line) faders three through eight. The high
side of the balanced line is wired to the tip (T), the low side of the balanced line is on
the ring (R), and the sleeve (S) is connected to the console ground. The tip and ring are
automatically switched to ground when there is no matching plug inserted in the jack.
One pair of TRS jacks is provided to bring an additional stereo line level signal into
the console for use by the monitor circuits. These are also wired with the tip high, the
ring low, and the sleeve ground, and with automatic grounding when no plug is inserted.
Two pairs of TRS jacks are provided to bring the two stereo program outputs (PGM 1
and PGM 2) out of the console as balanced line level +4dBu signals. The tip is high,
the ring is low, and the sleeve is ground.
One pair of TRS jacks is provided to bring the stereo monitor output out of the
console as separate (left and right) unbalanced line level signals at a nominal level of
-2dBu (equivalent to one side of a balanced +4dBu output). The tip is high and both
the ring and the sleeve are connected to ground.
One TRS jack is provided to bring the mono cue out of the console as an unbalanced
line level signal (nominal -2dBu). The tip is high and both the ring and the sleeve are
connected to ground.
One TRS is provided for the operator to plug in a set of headphones. This is wired
as a standard headphone jack, with the left signal on the tip, the right signal on the ring,
and the sleeve connected to ground.
One TRS jack is provided to hook up an interface to an Air Tally light. This output
comes from a set of relay contacts and is designed to switch a low DC voltage (30 VDC
maximum) at a moderately low current (2 ADC maximum) to activate a DC light, or to
activate an external DC relay which can then be used to activate an AC operated light.
Never bring AC power into the console on this or any other connector. The relay
normally open (N.O.) contact appears on the tip and the common contact appears on
the ring. The sleeve is connected to ground.
One remaining TRS jack on the rear panel is not used.
The USB port uses the type B connector in the center of the rear panel for interfacing with a computer (see page 2-7 for details).
A 5-pin DIN connector is provided to accept console power from the external power
supply.
Dec 2012
2007
AIR 1 / Mar
page 1 – 4
INSTALLATION AND POWER
Unbalanced Connections (analog audio)
ANALOG INPUTS – Wire to the console with typical shielded two conductor cable
(like Belden 9451), just as if you were connecting a balanced source. At the unbalanced
source machine’s output, connect the black wire (LO) to the shield.
ANALOG OUTPUTS – The AIR 1 console’s PGM 1 and PGM 2 line level analog
outputs are electronically balanced, low impedance, outputs, expecting a minimum load
of 600 ohms. The outputs are balanced but are not floating. Therefore, care must be
exercised when connecting them to an unbalanced system. While temporarily shorting the low side of the output signal to ground will not cause any problems, continued
operation under these conditions will result in increased distortion, decreased reliability,
and possible oscillation problems. If you must connect one of these outputs to an
unbalanced system, be sure to leave the low side unterminated, and connect the
unbalanced system to the high side output and shield connections only.
Hook-Ups
The rear of the console has multiple TRS connectors to plug in 6 stereo line inputs
and the external input, as well as providing program 1 and 2, monitor, cue, headphone,
and tally output connections. There are also two female XLR connectors provided for
microphone MIC 1 and MIC 2 inputs.
MIC 1 and MIC 2 Inputs
All signals are analog mono. The mic input level is normally -50dBu balanced.
PIN 1 XLR 1 SH – MIC 1 IN SH
PIN 2 XLR 1 HI – MIC 1 IN HI
PIN 3 XLR 1 LO – MIC 1 IN LO
PIN 1 XLR 2 SH – MIC 2 IN SH
PIN 2 XLR 2 HI – MIC 2 IN HI
PIN 3 XLR 2 LO – MIC 2 IN LO
LINE 3 IN through LINE 8 IN
The top TRS jack (TRS 1) is LEFT and the bottom TRS jack (TRS 2) is RIGHT for
each channel. All signals are analog stereo, +4dBu balanced.
TRS 1 TIP – LINE X LEFT HI
TRS 1 RING – LINE X LEFT LO
TRS 1 SLEEVE – LINE X LEFT SH
TRS 2 TIP – LINE X RIGHT HI
TRS 2 RING – LINE X RIGHT LO
TRS 2 SLEEVE – LINE X RIGHT SH
Dec 2012
2007
AIR 1 / Mar
page 1 – 5
INSTALLATION AND POWER
EXT IN
The top TRS jack (TRS 1) is LEFT and the bottom TRS jack (TRS 2) is RIGHT
for each channel. All signals are analog stereo, +4dBu balanced.
TRS 1 TIP – EXT LEFT HI
TRS 1 RING – EXT LEFT LO
TRS 1 SLEEVE – EXT LEFT SH
TRS 2 TIP – EXT RIGHT HI
TRS 2 RING – EXT RIGHT LO
TRS 2 SLEEVE – EXT RIGHT SH
PGM 1 OUT and PGM 2 OUT
The top TRS jack (TRS 1) is LEFT and the bottom TRS jack (TRS 2) is RIGHT
for each channel. All signals are analog stereo, +4dBu balanced.
TRS 1 TIP – PGM X LEFT HI
TRS 1 RING – PGM X LEFT LO
TRS 1 SLEEVE – PGM X LEFT SH
TRS 2 TIP – PGM X RIGHT HI
TRS 2 RING – PGM X RIGHT LO
TRS 2 SLEEVE – PGM X RIGHT SH
MONITOR OUT
The top TRS jack (TRS 1) is LEFT and the bottom TRS jack (TRS 2) is RIGHT
for each channel. All signals are analog stereo, -2dBu nominal, unbalanced.
TRS 1 TIP – MONITOR LEFT HI
TRS 1 RING – GROUND
TRS 1 SLEEVE – MONITOR LEFT SH
TRS 2 TIP – MONITOR RIGHT HI
TRS 2 RING – GROUND
TRS 2 SLEEVE – MONITOR RIGHT SH
CUE
Analog mono, -2dBu nominal, unbalanced.
TRS TIP – CUE HI
TRS RING – GROUND
TRS SLEEVE – CUE SH
HDPN
Analog stereo, headphone level, unbalanced.
TRS TIP – HDPN LEFT
TRS RING – HDPN RIGHT
TRS SLEEVE – HDPN SH
AIR
AIR 11 // Dec
Mar 2007
2012
page 1 – 6
INSTALLATION AND POWER
TALLY
Relay closure, 30VDC, 2A maximum.
TRS TIP – TALLY N.O.
TRS RING – TALLY COM
TRS SLEEVE – GROUND
SPARE
Not used.
TRS TIP – NO CONNECTION
TRS RING – NO CONNECTION
TRS SLEEVE – GROUND
Dec 2012
2007
AIR 1 / Mar
page 1 – 7
CONSOLE FEATURES
Console Features
Chapter Contents
Overview.......................................................................................... 2-2
Inputs............................................................................................... 2-4
Analog Mono Mic Level Inputs....................................................................................2-4
Analog Stereo Line Level Inputs..................................................................................2-4
Outputs............................................................................................ 2-5
Program Outputs.........................................................................................................2-5
Monitor Output............................................................................................................2-5
Cue to Monitor.......................................................................................................2-5
Split Cue, Monitor..................................................................................................2-6
Split Cue, Headphone............................................................................................2-6
Monitor Mute..........................................................................................................2-6
On Air Tally.............................................................................................................2-7
USB Port.......................................................................................... 2-7
Using the USB Port.....................................................................................................2-8
... With a MAC.............................................................................................................2-8
... With a Windows® PC..............................................................................................2-8
Other Computers.........................................................................................................2-8
General Considerations...............................................................................................2-9
AIR 1 / Mar 2012
page 2 – 1
CONSOLE FEATURES
Console Features
Overview
The AIR 1 console consists of an input section with eight faders and associated switches,
monitor and headphone section with two faders and associated switches.
The basic purpose of the console is to take some of the many audio signals that are wired
to the console inputs, and generate several outputs that combine these inputs in various
groups and at various degrees of loudness, or signal strength. The typical application is in
a radio station where it is desired to develop the signals that the station will broadcast (the
on air signal), as well as several additional signals for recording and monitoring.
All programming is made via PCB mounted slide switches accessible through openings
in the console’s bottom panel.
AIR 1 / Mar 2012
page 2 – 2
CONSOLE FEATURES
AIR 1 Bottom Panel
AIR 1 / Mar 2012
page 2 – 3
CONSOLE FEATURES
Inputs
The AIR 1 console is designed to handle 6 analog stereo (+4dBu balanced)
inputs, two mono microphone (-50dBu balanced) inputs, and one external stereo
line level (+4dBu balanced) input that goes directly to control room or meter.
Analog Mono Mic Level Inputs
These inputs are used to connect to microphones, which typically put out signals
at relatively low signal strength, and therefore require more amplification (increase
in signal strength) to be properly audible in the output. Mic level sources are wired
to female XLR connectors located on the rear of the console. These mic inputs feed
the console’s first two faders.
Example: with a microphone input of –60dBm @150 ohm at the port, gain
trim can set levels from -22dBu to +16dBu (note maximum preamp gain is
+76dB) at the PGM 1 or PGM 2 output.
Analog Stereo Line Level Inputs
These inputs are typically used to connect to machines, such as tape decks, cart
machines, CD players, etc., that provide analog outputs. All six input line level signals
and external signal are switchable between -4dBu and +4dBu via slide switches,
LINE 3 - LINE 8 (SW 8 - SW 3 on MBUSBA1-1 PCB) and EXTERNAL (SW 2
on MBUSBA1-1 PCB), accessible through openings in the console’s bottom panel.
When UP the input level signal is -4dBu;
When DOWN the input level signal is +4dBu.
AIR 1 / Mar 2012
page 2 – 4
CONSOLE FEATURES
Outputs
The console outputs include two program stereo busses (PGM 1 and PGM 2),
a stereo monitor output, a mono cue output, and a stereo headphone jack.
The console’s mono cue signal is provided to drive an external powered speaker,
or amplifier and speaker combination, and also provides the cue signal used to interrupt monitor and headphones, if such interrupt has been enabled by the installer.
Program Outputs
The console’s main analog outputs are the two Program stereo buses
(PGM 1 and PGM 2). The Program stereo outputs can be programmed
to mono outputs via slide switches, PGM 1 MONO SUM and PGM 2
MONO SUM (SW 11 and SW 12 on MBUSBA1-1 PCB).
When SW 12 is UP the PGM 1 is in mono mode, which sums the
left and right PGM 1 channels and sends this mono signal to both left
and right channels of the PGM 1 output.
When SW 12 is DOWN the PGM 1 is in stereo mode.
When SW 11 is UP the PGM 2 is in mono mode, which sums the
left and right PGM 2 channels and sends this mono signal to both left
and right channels of the PGM 2 output.
When SW 11 is DOWN the PGM 2 is in stereo mode.
Monitor Output
The AIR 1 has a MONITOR output designed to drive a stereo pair of powered
speakers, or a stereo amplifier driving separate speakers, to allow the operator
to listen to either PGM 1 or PGM 2, or an external signal. The console may be
programmed to mute the monitor or to provide monitor and headphone split cue.
Cue to Monitor
The CUE TO MONITOR (SW 1 on MBUSBA1-1 PCB) slide
switch, when activated (UP), sends cue to the monitor.
AIR 1 / Mar 2012
page 2 – 5
CONSOLE FEATURES
Split Cue, Monitor
The MONITOR SPLIT CUE (SW 3 on MBUSBA1-1 PCB)
slide switch, when activated (UP), allows a summed (L+R)
version of the regular program to be sent to the right side of
the monitor stereo output, while CUE is sent to the left side.
Split Cue, Headphone
For headphones, consoles are normally programmed at the
factory for CUE to appear on the left channel, while the L+R sum
of the monitor output appears on the right. This can be changed
with the HEADPHONE SPLIT CUE (SW 4 on MBUSBA1-1
PCB) slide switch. To defeat this split cue option, turn the switch off (DOWN). With
this setting cue will interrupt both sides of the headphones.
Monitor Mute
The console has the ability to mute the monitor output.
The console also has an ON AIR tally output that is used
to drive user-provided external circuitry that will in turn
operate the ON AIR indicator. This tally is automatically
activated whenever the monitor mute is activated.
The two microphone channels can be programmed via
MIC 1 and MIC 2 (SW 9 and SW 10 on MBUSBA1‑1
PCB) slide switches to mute the monitor speakers when
the channel is ON.
When MIC 1, SW 10, is UP the console’s monitor speakers are automatically
muted when the MIC 1 channel is turned ON.
When MIC 2, SW 9, is UP the console’s monitor speakers are automatically
muted when the MIC 2 channel is turned ON.
This is done to prevent feedback from the monitor speaker to the announcer’s mic.
At the same time that muting is enabled (by turning on either of the two MIC
channels when set to activate the monitor mute), the ON AIR LED in the center of
the meterbridge is also turned on, and a closure is provided at the TALLY output to
activate the external circuitry for the ON AIR indicator.
AIR 1 / Mar 2012
page 2 – 6
CONSOLE FEATURES
On Air Tally
For controlling an external “on-air” indicator, a relay is provided. The tally is
activated when a mic channel set for monitor mute is turned on.
The relay connections are available at the “TALLY” TRS connector mounted
on the rear of the console. Connect the on-air light to the external user-provided
relay. Do not bring on-air light AC connections to any pin of any connector on the
console.
TYPICAL MONITOR ON-AIR TALLY CIRCUIT
USER-SUPPLIED RELAY TRIGGERED BY CONSOLE MONITOR MUTE CIRCUIT
INTERNAL AIR
TALLY RELAY
N.C.
"TALLY" TRS
CONNECTOR PIN
+
1N4002
COM 30VDC
N.O.
2A
max
PIN
R
–
+
ECG
B40240
or equiv.
relay
YOUR
POWER
SUPPLY
–
PIN
T
RELAY CIRCUIT POWERED BY USER
SUPPLIED EXTERNAL SUPPLY
USB Port
The console contains a USB 2.0 interface, available
via the USB Type B connector on the rear panel, to enable
audio to pass between the console and a USB port on a
computer. USB PGM OUT slide switches (SW 51 and
SW 52 on the MBUSBA1-1 PCB) select either PGM 1
or PGM 2 as the audio from the console to the computer.
When both switches SW 51 and SW 52 are slid to
the LEFT the USB will be fed with PGM 1.
When both switches SW 51 and SW 52 are slid to
the RIGHT the USB will be fed with PGM 2.
Note that SW 51 activates the PGM RT channel while
SW 52 activates the PGM LT channel of the stereo analog
signal.
Audio coming back from the computer via USB shows
up as a stereo analog signal on the LINE 8 fader as long as
there are no connections made to the LINE 8 input jacks.
AIR 1 / Mar 2012
page 2 – 7
CONSOLE FEATURES
Using the USB Port . . .
Any computer having a USB port and installed drivers capable of passing and
utilizing digital audio data should work with the Air 1 USB port. Use a cable having
a USB Type B connector on the Air 1 end and a connector on the other end that will
mate with the computer’s USB port; this will typically be a USB Type A connector.
. . . With a MAC
In general, this will be a plug-and-play process. The main concern is to choose
the USB Audio Codec under System Preferences>Sound as desired for audio input
and/or output. Then simply start the application.
. . . With a Windows® PC
When you first connect the Air 1 USB port to a PC running Windows you will see
the famous “found new hardware” sequence of messages. At some point this sequence
should end with a message that the new hardware is installed and ready to use.
Setting up any given application to use the Air 1 USB port will depend on the
application itself. Generally, you will need to select the appropriate device from a
list of devices in a Preferences dialog.
As an example, let’s look at WinAmp, a free software application used by millions to play back audio streams from a network (or the Internet), or to play audio
streams into a network.
To play audio from the Air 1 on the computer:
• Install the free LineIn plugin for WinAmp.
• Under Preferences - Input select the LineIn plugin from the Input list and click
Configure, then find the USB Audio Codec in the list of available devices and
note its corresponding device number, which you will need below.
• In WinAmp, choose Play URL...
• Enter “line://dev=n” where ‘n’ is the device value that you discovered above.
• Now when you click Play, WinAmp will play the Air 1 audio on the output
device selected in WinAmp. This could be speakers, a sound card, or even an
output stream.
To play audio from the computer on the Air 1:
• Under WinAmp Preferences - Output select an output plugin and click Configure, then select the USB Audio Codec as the device.
• Play the desired computer audio with WinAmp and the audio will appear on
the LINE 8 fader, unless you have an audio source plugged into the LINE 8
input jacks.
Other Computers
If your computer does not use one of the above operating systems, or otherwise
behaves differently than described above, consult the documentation for that computer, operating system, and/or application.
AIR 1 / Mar 2012
page 2 – 8
CONSOLE FEATURES
General Considerations
If any problems are encountered, please consider the following points:
• The audio that is output from the Air 1 on the USB port depends on the setting
of the rear panel dipswitches that select between PGM 1 and PGM 2 as the
source (see page 2-7).
• The audio coming back into the Air 1 on the USB port is available at the LINE 8
fader as long as nothing is plugged into the LINE 8 input jacks.
• If you are not able to get the audio into or out of the USB port, check the USB
cable, its connections at both ends, and the port selection settings in the application you are using.
• If you have the audio flowing where you want and it suddenly becomes intermittent or disappears, check the USB cable and the connections at both ends.
• Once you have the USB audio under control it is a good idea to make a record
of the application being used, including its version number, the audio direction
(into or out of the computer), and all the settings that were required to make it
work. This information will be invaluable if you later have to troubleshoot the
USB audio, or set it up on another computer.
AIR 1 / Mar 2012
page 2 – 9
CONTROLS AND FUNCTIONS
Controls and Functions
Chapter Contents
Input Section................................................................................... 3-2
Source.........................................................................................................................3-3
Program Assign...........................................................................................................3-3
Cue Button..................................................................................................................3-3
Fader...........................................................................................................................3-3
ON Button...................................................................................................................3-3
Master Section................................................................................ 3-4
Monitor........................................................................................................................3-5
Program Select.......................................................................................................3-5
EXT Switch.............................................................................................................3-5
Monitor Fader.........................................................................................................3-5
Cue Level Control...................................................................................................3-6
Headphone Fader...................................................................................................3-6
Meters.........................................................................................................................3-6
VU Meter Pair.........................................................................................................3-6
Meter Select Buttons..............................................................................................3-7
On Air LED...................................................................................................................3-7
AIR 1 / Mar 2012
page 3 – 1
CONTROLS AND FUNCTIONS
Controls and Functions
Input Section
The AIR 1 Input section consist of two mono microphone input channels and
six stereo analog input channels.
The MIC and LINE input channels have the same controls, except that the MIC
channels don’t have a CUE switch.
AIR 1 / Mar 2012
page 3 – 2
CONTROLS AND FUNCTIONS
Source
The AIR 1 console accepts two mono mic input signals via female XLR
and six stereo line level input signals via TRS connectors.
MIC 1 and MIC 2 GAIN trimpots at the rear of the console below the
MIC input XLR connectors are used to adjust the gain of each microphone
input independently. These are normally “set and forget” adjustments, and
are set at the factory for a gain of 54dB, thus bringing a -50dBu microphone
input level up to +4dBu at the output.
If you have more than two microphones in use, you will need to provide
external mic preamps for all but two of them. These additional mics will
not be able to activate the muting and on air tally functions.
Program Assign
Output switches assign the selected source signal to any combination of
the console’s two stereo Program outputs – PGM 1 and PGM 2. The button will be lit when the source is assign to its respective bus. To remove a
source from the bus, press the button again; the light will go off to indicate
that the source is no longer assigned to that bus. NOTE that when the console is powered up all input channels will be off and assigned to PGM 1.
Cue Button
The CUE switch (not found on the MIC channels) places the channel’s
signal on the console’s cue bus, where it may be heard in the external cue
speaker, as an interrupt to the console operator’s headphones, and as an
interrupt to the monitor speakers, if so programmed.
Press the CUE button. The channel’s input signal will be included in
the console’s CUE output at a level that is independent of the FADER setting, and the button will light. The fader does not need to be turned ON.
To remove a fader from cue, press the CUE BUTTON again; the light will
go off to indicate the channel is no longer assigned to cue.
Fader
Level is set by a long-throw fader. The fader is the sliding mechanism
that determines how strong is the presence of the input in some of the
various console outputs.
If the fader is all the way down (that is, pulled toward the console
operator), the signal will not be present in either of the two program main
buses to which it is assigned. As the fader is moved up (that is, pushed
away from the console operator) the signal will appear more strongly in
each of the main buses to which it is assigned.
ON Button
The ON button turns the channel on and off by means of electronic
switching. The channel is on when the ON button is lit. The mic channels
can also be programmed (as mentioned in the previous chapter) to activate
monitor mute and on air tally.
AIR 1 / Mar 2012
page 3 – 3
CONTROLS AND FUNCTIONS
Master Section
The Master section includes the monitor, headphone, and meters controls.
AIR 1 / Mar 2012
page 3 – 4
CONTROLS AND FUNCTIONS
Monitor
This is the console operator’s monitor that
allows the operator to listen to the console’s two
stereo Program outputs and an external stereo
line level input. This section of the console
includes the faders for the monitor and headphone, and a cue level control for cue circuits.
In a typical radio application the console
is located in the Control Room. Speakers in
the Control Room allow the console operator
to listen to the console bus outputs to be assured that the console is performing as desired.
These speakers are fed by a stereo signal from
the console’s monitor output. In addition to the monitor output, the operator may
also desire to listen to specific isolated faders via the cue system and an external
cue speaker, or may want to listen via headphones. Thus, the control room monitor
consists of the above controls, along with two program assign (PGM 1 and PGM 2)
buttons, and an external input (EXT) button.
In some instances the console operator may also be performing talent whose
voice will be heard over the radio. The operator’s microphone may thus provide
a part of the signal that is going out over the air. If that signal is the one being
monitored with the Control Room speakers, there is the potential for feedback. The
amplified signal from the Control Room speakers is picked up by the microphone
and preamplified to a new, higher, level, which then is once again picked
up by the microphone. The signal quickly rises to an ear-splitting screech.
To prevent this, the operator’s microphone is normally set to MUTE the
monitor output to prevent the occurrence of feedback.
The master CUE circuit can be programmed to interrupt monitor feed, or
provide a split feed (program mono sum to right, cue to left) to the monitor
speakers. It also automatically interrupts the headphone feed, either in split
mode (by default) or both sides.
Program Select
Pressing either of the two program (PGM 1 or PGM 2) switches allows
the operator to listen to the selected output bus. The button will be lit when
the monitor is assigned to its respective bus.
EXT Switch
Pressing the EXT switch allows the operator to pick up the external input
(useful for such items as tape recorders or air returns) to listen.
Monitor Fader
The MON fader determines the overall loudness of the signal being
monitored as it appears in the Monitor speakers. As the fader slides up, the
loudness increases up to a maximum at the top position. To decrease the
loudness, slide the fader down.
NOTE: If the Monitor is muted and you slide the fader all the way up,
then remove the condition that has the Monitor muted, the sound in the
Monitor speakers will suddenly be VERY LOUD!
AIR 1 / Mar 2012
page 3 – 5
CONTROLS AND FUNCTIONS
CUE Level Control
The CUE level control determines the overall loudness of the cue signal.
Headphone Fader
The HDPN fader determines the overall loudness of the headphone output signal, which monitors the same source (PGM 1, PGM 2, or EXT) as the
Monitor speakers.
The headphone output signal appears at the HEADPHONE JACK, located
on the back of the console as indicated in Chapter 1. The jack is provided
as a place to plug in user-supplied stereo headphones. High impedance
headphones work best; as the headphone impedance is reduced below about
200 ohms the available level decreases.
Meters
The METERS section consists of one 10-segment VU meter pair on the console’s meterbridge and a METERS select buttons (PGM 1, PGM 2, and EXT),
located on the Master section.
VU Meter Pair
The VU meter pair is a stereo LED bargraph type meter.
The level of the signal being metered is indicated by the number of display
elements that are lighted. The more elements lighted, the stronger is the signal
being displayed. The right two LEDs in each bargraph are red to indicate when
the signal level is approaching a clipping (distorted) level. The next two LEDs
AIR 1 / Mar 2012
page 3 – 6
CONTROLS AND FUNCTIONS
are yellow, indicating a normal level range, and the remaining LEDs are
green. The left member of the pair indicates the level of the selected signal’s
left channel, while the right member of the pair indicates the level of the
selected signal’s right channel.
METER Select Buttons
The METER buttons (PGM 1, PGM 2, or EXT) select the source for the
meter pair, as indicated above.
On Air LED
The ON AIR LED, located in the middle of the meterbridge, lights up
when either of the two MIC channels is programmed by slide switch to have
the MONITOR MUTE activated, and is also ON.
AIR 1 / Mar 2012
page 3 – 7
SCHEMATIC DRAWINGS
Schematic and Load Sheet
Drawings
Chapter Contents
Console Flow Diagram................................................................... 4-2
MBUSBA1-1 Mother Board
Schematic...................................................................................................................4-3
Load Sheet.................................................................................................................4-11
VUA1-2 Meters PCB
Schematic..................................................................................................................4-12
Load Sheet.................................................................................................................4-13
Dec 2012
2007
AIR 1 / Mar
page 4 – 1
ON/OFF
VU METERS
CUE
PGM 1
PGM 2
PGM 1 LT MON
PGM 1 RT MON
LOGIC
MIC MUTE
SLIDE SW
MUTE/TALLY BUS
ON MBUSBA1-1 PCB
VU
FET
SW
PGM 2 LT MON
PGM 2 RT MON
L
L
E
V
E
L
CUE ACN
SWITCHED
METERS
TO BRIDGE
R
EXT LT MON
EXT RT MON
XLR
TRIM
H
MIC 1
L
F
A
D
E
R
CUE MON
PGM 1 ACN
PGM
FET
SW
PGM 2 ACN
LOGIC
EXT
ON/OFF
HEADPHONE
F
A
D
E
R
N.O.
DRY
RELAY
PGM 1
MUTE/TALLY BUSS
LOGIC
R
L
LINE RT GAIN
SW
1/4" RTS
L
EXT
PGM 1 ACN
PGM
FET
SW
CUE
PGM 2
PGM 2 ACN
CUE TO MON SPLT
EXT LT GAIN
SW
H
CUE SENSE
L
ON MBUSBA1-1 PCB
ON MBUSBA1-1 PCB
PGM 1 LT MONITOR
EXT LT MONITOR
R
L
1/4" RTS
PGM 2 RT MON
EXT LT MON
EXT RT MON
PGM 1 LT OUT
L
SLIDE SW
EXTERNAL IN
PGM 1 RT MONITOR
L
L
F
A
D
E
R
CR
FET
SW
R
CR LT OUT
L
FET
SW
H
R
CR RT OUT
L
1/4" RTS
CUE MON
H
R
MUTE / TALLY BUS
PGM 1 RT OUT
L
PGM 1 RT MON
PGM 2 LT MON
EXT RT GAIN
SW
H
L
H
PGM 1 LT MON
H
R
MON SPLIT
MODE
SLIDE SW
EXT LT MONITOR
L
LT
RT
R
CUE TO MON
ENABLE
SLIDE SW
CUE SENSE
EXT IN
L
LOGIC
ON AIR TALLY
CUE ACN
LOGIC
CR MONITOR
CUE TO MON
R
CUE
FET
SW
INPUT CHANNEL
L
R
PGM 1
F
A
D
E
R
H
RT
R
CUE MON
LINE LT GAIN
SW
L
L
HDPN OUT
HDPN
JACK
TO TALLY LED
TO BRIDGE
L
L
TALLY
1/4" RTS
H
FET
SW
LOGIC
DRIVER
PGM 2
LT
HDPN SPLIT
MODE
SLIDE SW
ON MBUSBA1-1 PCB
PGM 2
PGM 1 ACN
LOGIC
CUE SENSE
PGM 1
MIC CHANNEL
LINE INPUT
CUE OUT
1/4" RTS
1/4" RTS
PGM 2 LT MONITOR
H
L
L
L
PGM 2 LT OUT
L
SLIDE SW
PGM 2 ACN
PGM 2 RT MONITOR
H
R
R
R
PGM 2 RT OUT
L
1/4" RTS
FROM
USB
CODEC
COMPUTER
TO
SLIDE SW
PROGRAM
AIR 1 / Mar 2012
AIR 1
System Flow Diagram
USB
CONN
PATCH OUT
LINE 8
1/4" RTS
page 4 - 2
8
7
MIC "1" IN
D
CT1
5
4
3
2
CT2
MIC1_IN_HI
D
MIC2_IN_HI
-50dBu BAL
MIC1_IN_LO
3
2 HI
1
-50dBu BAL
MIC2_IN_LO
3
LO
LO
AGND
AGND
CT10
6A
SS 1A
S
T
TS
R
4A
AGND
AGND
2A
3A
RS
5A
CT11
EXT_LT_HI
EXT_LT_LO
S
S
R
6A
SS 1A
TS
4A
AGND
AGND
2A
3A
RS
5A
CT5
LINE3_LT_HI
LINE3_LT_LO
S
6A
SS 1A
TS
4A
AGND
AGND
2A
RS
5A
CT10
6B
SS 1B
LINE4_LT_HI
S
LINE4_LT_LO
CT4
T
R
6B
SS 1B
TS
4B
AGND
AGND
2B
3B
RS
5B
T
TS
R
4B
AGND
CT5
LINE3_RT_HI
LINE3_RT_LO
S
T
R
TS
4B
AGND
AGND
2B
3B
AGND
6B
SS 1B
RS
AGND
5B
CT11
EXT_RT_LO
S
RS
5B
R
TS
AGND
2A
3A
RS
5A
CT7
LINE5_LT_LO
S
R
6B
SS 1B
TS
4B
AGND
AGND
2B
3B
B
R
6A
SS 1A
TS
4A
AGND
AGND
2A
3A
AGND
RS
5B
R
RS
6A
T
TS
R
AGND
RS
CT7
LINE5_RT_LO
S
T
R
5A
RS
PGM2_LT_LO
S
CT12
6B
SS 1B
S
LINE6_LT_LO
T
T
TS
R
RS
AGND
CT13
PGM2_RT_HI
PGM2_RT_LO
S
T
R
AGND
2A
3A
RS
5A
6B
SS 1B
TS
RS
4B
AGND
AGND
LINE7_LT_HI
LINE7_LT_LO
S
T
R
5B
LINE6_RT_LO
CUE OUT
AGND
S
3B
6A
SS 1A
TS
AGND
4A
2A
3A
AGND
RS
CT14
6A
T
TS
R
6B
SS 1B
TS
4B
AGND
AGND
2B
RS
5B
AGND
MON_RT_OUT
5B
AGND
AGND
R
2A
RS
HDPN OUT
AGND
CT15
CUE_OUT
4A
5A
S
AGND
T
5A
LINE8_LT_HI
TS8L
LINE8_LT_LO
RS8L
6B
SS 1B
USB_OUT_LT_HI
S
3B
USB_OUT_LT_LO
TS
R
AGND
RS
B
HDPN_LT
4A
HDPN_RT
2A
3A
AGND
6A
SS 1A
5A
AGND
CT14
AGND
T
R
TS
TALLY OUT
CT15
AGND
4B
S
2B
RS
3B
5B
AGND
LINE "7" IN
T
AGND
LINE6_RT_HI
SS 1A
CT9
AGND
CT8
AGND
4B
2B
RS
NOT USED
TS
5A
6B
SS 1B
TS
R
3B
5B
AGND
S
MON_LT_OUT
AGND
3A
4A
2A
RS
AGND
4A
MONITOR OUT
4B
2B
3B
S
T
TS
R
3A
5A
6A
AGND
LINE6_LT_HI
AGND
2B
3B
AGND
AGND
5B
SS 1A
PGM2_LT_HI
4A
2A
AGND
6A
SS 1A
PGM1_RT_HI
PGM1_RT_LO
2B
CT13
AGND
LINE5_RT_HI
AGND
CT8
AGND
4B
LINE "6" IN
LINE "5" IN
S
T
AGND
T
TS
C
CT12
SS 1A
LINE5_LT_HI
AGND
CT6
6B
SS 1B
LINE4_RT_LO
AGND
PGM 2 OUT
S
T
3B
AGND
AGND
AGND
5A
AGND
3A
4A
RS
LINE4_RT_HI
S
6A
SS 1A
PGM1_LT_HI
PGM1_LT_LO
2A
EXT_RT_HI
AGND
AGND
T
R
AGND
4A
LINE "4" IN
AGND
CT6
TS
PGM 1 OUT
2B
3B
AGND
AGND
LINE "3" IN
C
R
3A
AGND
AGND
S
T
6A
SS 1A
AGND
EXT IN
T
T
3A
AGND
AGND
CT4
1
MIC "2" IN
2 HI
1
6
T
R
6B
SS 1B
TS
AGND
TALLY_NO
4B
TALLY_C
2B
RS
5B
AGND
LINE "8" IN
CT9
LINE7_RT_HI
LINE7_RT_LO
S
3B
AGND
AGND
T
R
6B
SS 1B
TS
AGND
4B
2B
RS
5B
LINE8_RT_HI
TS8R
LINE8_RT_LO
RS8R
USB_OUT_RT_HI
USB_OUT_RT_LO
AGND
A
MBUSBA1-1
CONTRACT NO.
- SA UR US - Sergey Averin -
APPROVALS
DATE
DRAWN AC/WWP 12-12-11
CHECKED
WWP
W# 700985
AIR-1 / Feb 2012
7
6
5
4
3
600 Industrial Drive
New Bern, NC 28562
DB
ISSUED
8
A
SIZE FSCM NO.
D
SCALE
2
DWG. NO.
22S1003-1
MBUSBA1-1 PCB
SHEET
REV
_
1 OF 9
1
page 4 - 3
8
7
6
INPUT 1
VCC
INPUT 2
VCC
SW15
2
3
D
1
R79 220
4
R84 220
PGM1SW_1
SW25
R98
C61
1.00K
0.22uF
GND
2
1
R119 220
3
4
R124 220
VCC
PGM2SW_1
PGM-2
R131
C94
1.00K
0.22uF
GND
1
R78 220
4
R69 220
PGM1SW_2
SW26
R97
C69
1.00K
0.22uF
GND
2
1
R118 220
3
4
R109 220
PGM2SW_2
PGM-2
GND
VCC
GND
R130
C88
1.00K
0.22uF
GND
R77 220
4
R83 220
SW27
1
R117 220
3
4
R123 220
PGM-2
GND
SW35
3
VCC
2
1
R452 100
3
4
R465 220
ONSW_1
ON/OFF
R441
C360
1.00K
0.22uF
GND
C
VCC
SW44
2
1
R451 100
3
4
R464 220
ONSW_2
ON/OFF
GND
R440
C359
1.00K
0.22uF
GND
C60
1.00K
0.22uF
R160 220
4
R166 220
SW45
C91
1.00K
0.22uF
1.00K
0.22uF
1
R449 100
3
4
R463 220
ON/OFF
GND
2
1
R116 220
3
4
R108 220
SW36
C358
1.00K
0.22uF
GND
R159 220
4
R152 220
CUE
VCC
ONSW_3
R439
1
SW46
C68
1.00K
0.22uF
1
R448 100
3
4
R462 220
ON/OFF
GND
VCC
PGM2SW_4
R129
C86
1.00K
0.22uF
0.22uF
1
R115 220
3
4
R122 220
SW37
C357
0.22uF
GND
R158 220
4
R164 220
VCC
VCC
INPUT 7
VCC
SW20
2
1
R74 220
3
4
R67 220
PGM1SW_6
PGM-1
VCC
SW30
2
3
R114 220
4
R107 220
SW38
0.22uF
1
R157 220
3
4
R151 220
SW48
1
R446 100
3
4
R460 220
1
R73 220
3
4
R81 220
SW31
2
3
R127
C83
1.00K
0.22uF
VCC
GND
R169
C108
1.00K
0.22uF
ON/OFF
1.00K
GND
R113 220
4
R121 220
SW39
C354
1.00K
0.22uF
SW22
SW23
1
R156 220
3
4
R163 220
SW49
1
R445 100
3
4
R459 220
R72 220
3
4
R64 220
SW32
2
3
C92
1.00K
0.22uF
VCC
GND
R168
C101
1.00K
0.22uF
1.00K
4
R106 220
SW40
1
R155 220
3
4
R150 220
C353
SW50
1
R444 100
3
4
R458 220
1.00K
0.22uF
3
4
GND
2
1
R447 100
3
4
R461 220
VCC
C80
1.00K
0.22uF
CUESW_8
GND
VCC
R167
C107
1.00K
0.22uF
VCC
1
3
4
4
C
R110
R120 220
VCC
10.0K
2
1
3
R105 220
4
PGM-2
VCC
R153
SW42
10.0K
3
GND
VCC
SW34
GND
R154
1
0.22uF
R63 220
PGM-1
VCC
2
C355
1.00K
10.0K
2
10.0K
SW41
GND
R437
R70
SW24
VCC
4
0.22uF
GND
VCC
R80 220
PGM-2
C103
ONSW_5
MON/HDPN
1
3
GND
GND
R111
2
0.22uF
GND
GND
GND
SW33
GND
R125
GND
R162 220
VCC
10.0K
2
1
3
4
EXT
R161 220
EXT
GND
ONSW_8
B
1.00K
GND
1
C93
1.00K
1.00K
SW47
10.0K
2
R128
CUESW_5
ON/OFF
R71
PGM-1
PGM2SW_8
R434
ON/OFF
0.22uF
C66
GND
2
GND
VCC
R87
GND
2
VCC
ONSW_7
GND
R112 220
CUE
GND
PGM1SW_8
GND
1
PGM-2
CUESW_7
R435
GND
1
VCC
GND
R126
GND
2
2
PGM-1
PGM2SW_7
ON/OFF
0.22uF
C58
GND
2
VCC
GND
R88
GND
1
CUE
ONSW_6
R436
PGM1SW_7
PGM-2
CUESW_6
GND
2
2
VCC
GND
METERS
VCC
SW21
PGM-1
PGM2SW_6
CUE
B
1.00K
GND
2
VCC
C67
GND
1
PGM-2
VCC
R91
INPUT 8
PGM2SW_5
R170
VCC
INPUT 6
0.22uF
GND
GND
1
D
C59
1.00K
2
2
ONSW_4
1.00K
R92
CUE
GND
R438
PGM1SW_5
GND
3
1.00K
4
R82 220
SW29
VCC
CUESW_4
C118
R75 220
PGM-2
GND
R165
1
PGM-1
GND
GND
2
SW19
2
3
R95
GND
2
GND
PGM1SW_4
GND
3
C105
4
R68 220
SW28
VCC
GND
R171
R76 220
PGM-2
CUESW_3
GND
2
VCC
PGM2SW_3
R132
1
PGM-1
GND
1
INPUT 5
VCC
SW18
2
3
R96
GND
1
CUE
SW43
PGM1SW_3
GND
2
VCC
2
INPUT 4
1
PGM-1
2
VCC
3
VCC
SW17
2
3
PGM-1
GND
4
INPUT 3
VCC
SW16
2
3
PGM-1
VCC
5
GND
C352
0.22uF
GND
F1
VCC
D+in
POLYSW
1.0A
CT18
VCC
CT19
A
GND
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
GND
TALLY_LED
CT16
1
2
3
4
5
GND
GP2
GND
GP1
AGND
F3
V-
D+in
V-in
V+in
PWR
V-in
D+in
C2
C3
C1
0.1uF
0.1uF
0.1uF
AGND
GND
AGND
- SA UR US - Sergey Averin -
APPROVALS
6
5
4
3
A
DATE
DRAWN AC/WWP 12-12-11
CHECKED
600 Industrial Drive
New Bern, NC 28562
DB
WWP
W# 700985
AIR-1 / Feb 2012
MBUSBA1-1
CONTRACT NO.
V+in
VCC
7
V-in
POLYSW
1.0A
AGND
ISSUED
8
V+in
POLYSW
1.0A
15
15
F2
V+
1
1
SIZE FSCM NO.
D
SCALE
2
DWG. NO.
22S1003-2
MBUSBA1-1 PCB
SHEET
REV
_
2 OF 9
1
page 4 - 4
8
7
6
5
4
3
2
1
VCC
VCC
U13
___
PR
5
Q
CK
2
__
D
____ Q 6
1
CLR
4
PGM1SW_1
3
D
U12
___
PR
5
Q
CK
2
__
D
____ Q 6
1
CLR
VCC
4
PGM1_1
PGM1SW_3
3
74LS74
VCC
U11
___
PR
5
Q
CK
2
__
D
____ Q 6
1
CLR
4
PGM1_3
PGM1SW_5
3
74LS74
U10
___
PR
5
Q
CK
2
__
D
____ Q 6
1
CLR
VCC
4
PGM1_5
PGM1SW_7
3
74LS74
R175
PGM1_7
4
U14
5
1
74ACT08
3
U22
2
74LS74
U9
___
PR
5
Q
3
CK
2
__ 6
D
____ Q
1
CLR
74ACT08 GND
10.0K
PGM1_1
ON_1
4
6
1
2
BAT54 D17
3
U20
74LS00
4
74LS74
PGM2_1
5
BAT54 D16
74LS00
U13
___
PR
9
Q
11
CK
12
__ 8
D
____ Q
13
CLR
10
PGM1SW_2
U12
___
PR
9
Q
11
CK
12
__ 8
D
____ Q
13
CLR
10
PGM1_2
PGM1SW_4
74LS74
U11
___
PR
9
Q
11
CK
12
__ 8
D
____ Q
13
CLR
10
PGM1_4
PGM1SW_6
74LS74
U10
___
PR
9
Q
11
CK
12
__ 8
D
____ Q
13
CLR
10
PGM1_6
PGM1SW_8
74LS74
PGM1_8
9
12
10
11
74ACT08
U22
13
74LS74
8
U14
10
12
11
13
74ACT08 GND
U9
___
PR
9
Q
CK
__
D
____ Q 8
CLR
PGM1_2
ON_2
9
10
BAT54 D14
BAT54 D13
8
U20
74LS00
PGM2_2
13
BAT54 D12
VCC
12
74LS74
D
BAT54 D15
6
U20
11
U20
74LS00
U26
___
PR
5
Q
CK
__ 6
D
____ Q
CLR
4
PGM2SW_1
3
2
1
4
PGM2_1
PGM2SW_3
3
2
1
74LS74
U25
___
PR
5
Q
CK
__ 6
D
____ Q
CLR
U24
___
PR
5
Q
CK
__ 6
D
____ Q
CLR
4
PGM2_3
PGM2SW_5
3
2
1
74LS74
4
PGM2_5
PGM2SW_7
3
2
1
74LS74
U23
___
PR
5
Q
CK
__ 6
D
____ Q
CLR
1
PGM2_7
PGM1_3
ON_3
1
2
4
PGM2_3
5
5
6
CUE TO
MONITOR
74LS00
74LS74
10.0K
2
4
3
U19
R176
SW1
3
6
U19
74LS00
U26
___
PR
9
Q
CK
12
__ 8
D
____
Q
13
CLR
10
PGM2SW_2
C
11
U25
___
PR
9
Q
11
CK
12
__ 8
D
____
Q
13
CLR
10
PGM2_2
PGM2SW_4
74LS74
U24
___
PR
9
Q
CK
12
__ 8
D
____
Q
13
CLR
10
PGM2_4
PGM2SW_6
11
74LS74
U23
___
PR
9
Q
11
CK
12
__ 8
D
____
Q
13
CLR
10
PGM2_6
PGM2SW_8
74LS74
U21
___
PR
5
Q
CK
2
__ 6
D
____
Q
1
CLR
PGM2_8
PGM1_4
ON_4
4
3
4
U22
5
74LS74
6
74ACT08 GND
BAT54 D19
9
10
1
8
U19
12
PGM2_4
13
C
5
6
MIC1
MUTE
11
U19
2
4
74LS00
74LS74
SW10
3
74LS00
U34
___
PR
5
Q
CK
2
__
D
____ Q 6
1
CLR
U33
___
PR
5
Q
CK
2
__
D
____ Q 6
1
CLR
4
VCC
CUESW_3
VCC
R450
D20
BAT54
CUESW_7
3
74LS74
10.0K
U32
___
PR
5
Q
CK
2
__
D
____ Q 6
1
CLR
U21
___
PR
9
Q
CK
12
__
D
____ Q 8
13
CLR
4
4
CUESW_5
3
74LS74
PGM1_5
ON_5
10
3
11
9
U22
10
74LS74
8
74ACT08 GND
BAT54 D18
1
2
1
3
U17
74LS74
4
PGM2_5
5
MIC2
MUTE
74LS00
100uF
U34
___
PR
9
Q
CK
12
__ 8
D
____ Q
13
CLR
U33
___
PR
9
Q
CK
12
__ 8
D
____ Q
13
CLR
CUESW_4
U32
___
PR
9
Q
CK
12
__ 8
D
____ Q
13
CLR
10
10
GND
CUESW_6
11
10
CUESW_8
11
74LS74
PGM1_6
ON_6
11
74LS74
9
10
8
U17
VCC
VCC
74LS00
R8
74LS74
4.99K
12
PGM2_6
13
11
U17
Q1
FDN340P
ONAIR_TALLY
R11 100
74LS00
B
U84
___
PR
5
Q
3
CK
2
__ 6
D
____ Q
1
CLR
4
ONSW_1
5
6
6
U17
2
4
74LS00
C356
SW9
3
U83
___
PR
5
Q
3
CK
2
__ 6
D
____ Q
1
CLR
4
ON_1
ONSW_3
74LS74
U82
___
PR
5
Q
3
CK
2
__ 6
D
____ Q
1
CLR
4
ON_3
ONSW_5
74LS74
U81
___
PR
5
Q
3
CK
2
__ 6
D
____ Q
1
CLR
4
ON_5
ONSW_7
74LS74
U31
___
PR
5
Q
3
CK
2
__ 6
D
____
Q
1
CLR
ON_7
PGM1_7
ON_7
4
1
U14
2
74LS74
3
74ACT08 GND
1
2
R5
74LS00
74LS74
4
PGM2_7
5
R6 2.00K
2.43K
GND
6
U15
B
TALLY_LED
3
U15
74LS00
74LS74
ONSW_6
11
12
13
74LS74
10
ON_6
ONSW_8
11
12
13
74LS74
ON_8
10
11
12
12
U14
13
74LS74
13
11
74ACT08 GND
PGM1_8
ON_8
9
10
8
U15
ONAIR_TALLY
74LS74
D1
1N4002
12
PGM2_8
13
11
U15
74LS00
A
MBUSBA1-1
- SA UR US - Sergey Averin -
APPROVALS
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
C74
C113
C99
C90
C64
C100
C102
C121
C104
C122
C106
C123
C73
C84
C81
C89
C72
C365
C70
C366
C71
C367
C87
C10
C368
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
CHECKED
AIR-1 / Feb 2012
7
6
5
4
3
600 Industrial Drive
New Bern, NC 28562
DB
WWP
GND
W# 700985
8
A
DATE
DRAWN AC/WWP 12-12-11
ISSUED
GND
ON AIR
TALLY
RELAY
TALLY_C
GND
CONTRACT NO.
VCC
TALLY_NO
74LS00
5
13
10
ON_4
6
12
4
11
3
ONSW_4
7
13
10
ON_2
U31
___
PR
9
Q
CK
__
D
____ Q 8
CLR
2
12
U81
___
PR
9
Q
CK
__
D
____ Q 8
CLR
1
11
U82
___
PR
9
Q
CK
__ 8
D
____
Q
CLR
K1
10
ONSW_2
U83
___
PR
9
Q
CK
__
D
____ Q 8
CLR
8
U84
___
PR
9
Q
CK
__
D
____ Q 8
CLR
SIZE FSCM NO.
D
SCALE
2
DWG. NO.
22S1003-3
MBUSBA1-1 PCB
SHEET
REV
_
3 OF 9
1
page 4 - 5
8
7
6
5
4
3
R371 10.0K
14
6
LO
L3
L4
C14 10uF
C21
5
330pF
3
MIC 1
C6
0.001uF
0.001uF
Z6
C5V1
5.1V
Z4
C5V1
5.1V
5.1V
C5V1
Z8
5.1V
C5V1
Z2
R21
10K 3
R20
10.0K
10.0K
AGND
SH
AGND
10
AGND
AGND
AGND
2
C342 22uF
9
4
2
MIC 1
GAIN
TRIM
1
5532
U68
3
R19
AGND
6
100uF C307
6
9
-14dBu
AGND
CH 1
AGND
R370 10.0K
3
6
SSM2017
U5
C5
Z5
C5V1
5.1V
C4
0.001uF
0.001uF
Z3
C5V1
5.1V
R18
10.0K
5.1V
C5V1
Z7
AGND
5.1V
C5V1
Z1
10
AGND
AGND
AGND
5
LINE3_LT_HI
R220 20.0K
LINE
3 LT
GAIN
3.92K
LINE3_LT_LO
LO
R252 20.0K
3
8
AGND
CH 2
88.7K
7
5532
U68
4
AGND
15
1
6
2
AGND
AGND
AGND
3.32K
100uF C287
R421 88.7K
R365 10.0K
13
14
X-Y
X
12
INH
Y
11
S U65
4053
6
C340 10pF
R298
33pF
PGM1LTACN
LINE4_LT_HI
HI
R217 20.0K
R366 10.0K
2
4
6
1
5532
U77
9
-2dBu
R328 20.0K
4
6
1
9
CH 3
3
R326 20.0K
R250
LINE3_RT_HI
R197 20.0K
3.92K
LINE3_RT_LO
R249 20.0K
LINE
3 RT
GAIN
SH
C203
0.001uF
0.001uF
6
R283
3.32K
AGND
AGND
R364 10.0K
C304 10pF
15
6
5
7
5532
U45
4
C158
10
22uF C144
8
10K B3 B2 C321 22uF
6
R397 22.1K
CR6 B1
V-
5
AGND
AGND
10
-2dBu
R398 88.7K
V+
-2dBu
C220
15
6
+4dBu BAL
10
R329 10.0K
R269 6.19K
R297
33pF
V+
LINE4_LT_LO
LO
X-Y
X
INH
Y
S U65
4053
SH
3
5
PGM2LTACN
R248 20.0K
3
C219
C193
0.001uF
0.001uF
13
X-Y
X
12
INH
Y
11
S U54
4053
PGM2RTACN
GND
AGND
3.92K
6
LINE
4 LT
GAIN
R282
3.32K
1
5532
U44
AGND
-14dBu
R420 22.1K
CR7 A1 A2
10K A3
C320 22uF
100uF C285
R419 88.7K
R362 10.0K
14
6
11
C338 10pF
22uF C143
AGND
AGND
14
AGND
X-Y
X
INH
Y
S U53
4053
X-Y
X
INH
Y
U65
S
4053
100uF C286
4
VGND
33pF
CUEACN
5
1
2
13
X-Y
X
12
INH
Y
S U64
4053
PGM1LTACN
R215 6.19K
2
R246
3.92K
8
HI
LINE4_RT_HI
R196 20.0K
R325 20.0K
LINE4_RT_LO
R245 20.0K
SH
C202
5
0.001uF
0.001uF
AGND
6
3.32K
AGND
10
-2dBu
R396 88.7K
R361 10.0K
C302 10pF
V+
15
6
7
5532
U44
4
C156
10
22uF C142
8
10K B3 B2 C319 22uF
6
R395 22.1K
CR7 B1
V-
5
R267 6.19K
R295
33pF
AGND
15
R281
AGND
AGND
V+
R324 10.0K
7
5532
U76
14
6
100uF C284
-14dBu
11
AGND
4
V-
3.92K
AGND
PGM2LTACN
5
X-Y
X
INH
Y
U64
S
4053
3
B
CUEACN
5
1
2
1
PGM1RTACN
2
13
X-Y
X
12
INH
Y
S U52
4053
PGM2RTACN
AGND
MBUSBA1-1
APPROVALS
OUT OF PHASE
CHECKED
600 Industrial Drive
New Bern, NC 28562
DB
ISSUED
WWP
W# 700985
3
A
DATE
DRAWN AC/WWP 12-12-11
4
X-Y
X
INH
Y
S U52
4053
GND
- SA UR US - Sergey Averin -
5
3
AGND
CONTRACT NO.
6
X-Y
X
INH
Y
U52
S
4053
9
CH 4
3
-2dBu
C218
AGND
7
4
6
+4dBu BAL
13
PGM2RTACN
9
-2dBu
6
1
LINE
4 RT
GAIN
X-Y
X
INH
Y
S U64
4053
6
R323 20.0K
1
PGM1RTACN
4
1
5532
U76
AGND
AGND
SW7
C191 33pF
2
3
3.92K
AGND
3
X-Y
X
6
12
INH
Y
11
S U53
4053
-14dBu
AGND
X-Y
X
INH
Y
U53
S
4053
R363 10.0K
2
R296
NOTE: PHASE SYMBOLS DENOTE SIGNAL POLARITY
AIR-1 / Feb 2012
PGM1RTACN
2
4
A
8
1
6
AGND
R268 6.19K
C171
LO
R327 10.0K
7
5532
U77
3.92K
AGND
IN PHASE
X-Y
X
INH
Y
S U66
4053
14
PGM2RTACN
2
+4dBu BAL
AGND
AGND
SW8
LINE 3 IN
LO
3
3.92K
8
HI
6
-2dBu
R270 6.19K
C194 33pF
15
PGM1RTACN
2
13
5
C192 33pF
-14dBu
22uF C145
R218 6.19K
R367 10.0K
1
X-Y
X
INH
Y
S U67
4053
C
R247
AGND
R422 22.1K
CR6 A1 A2
10K A3
C322 22uF
AGND
B
AGND
X-Y
X
INH
Y
10
U54
S
4053
V-
R284
2
C173
5
2
SW7
C196
0.001uF
3
-14dBu
LINE 4 IN
0.001uF
X-Y
X
INH
Y
U54
S
4053
100uF C306
-2dBu
C221
SH
6
9
GND
V+
R216 6.19K
1
5532
U45
D
PGM2LTACN
5
6
4
2
+4dBu BAL
4
5
X-Y
X
12
INH
Y
11
S U55
4053
6
R251
C195 33pF
3
AGND
SW8
R219 6.19K
HI
MIC 2
GAIN
TRIM
1K 3 2
CR1 1
AGND
C341 22uF
5
R16
AGND
SH
PGM1LTACN
-2dBu
2
CR5 1
1
AGND
X-Y
X
INH
Y
S U66
4053
6
3
6
22uF C119
10K 3
R17
10.0K
4
9
X-Y
X
INH
Y
U55
S
4053
14
10pF
R379
5
8
MIC 2
C
C20
330pF
R369 10.0K
PGM2LTACN
5
13
X-Y
X
12
INH
Y
S U66
4053
1
15
R330 10.0K
4
2
C12 10uF
22.1K
LO
L1
L2
-2dBu
R380
-50dBu BAL
MIC2_IN_LO
C288
V-
V+
MIC2_IN_HI
11
6
10
HI
6
3
X-Y
X
INH
Y
S U67
4053
14
PGM1LTACN
15
6
7
R368 10.0K
13
X-Y
X
12
INH
Y
S U67
4053
X-Y
X
INH
Y
10
U55
S
4053
AGND
AGND
C11 10uF
1
-2dBu
CR4 1
1
AGND
4
22uF C120
8
C7
88.7K
R404
6
SSM2017
U6
R372 10.0K
10pF
4
2
22.1K
-50dBu BAL
MIC1_IN_LO
-2dBu
R403
C13 10uF
MIC1_IN_HI
HI
C324
7
1K 3 2
CR2 1
D
V-
V+
11
2
SIZE FSCM NO.
D
SCALE
2
DWG. NO.
22S1003-4
MBUSBA1-1 PCB
SHEET
REV
_
4 OF 9
1
page 4 - 6
8
7
6
SW6
R213 6.19K
5
D
LINE5_LT_HI
HI
R214 20.0K
LINE
5 LT
GAIN
3.92K
LINE5_LT_LO
LO
R244 20.0K
SW5
R210 6.19K
3
3.32K
R239
AGND
CR8 A1 A2
R418 22.1K
10K A3
C318 22uF
100uF C283
R417 88.7K
R359 10.0K
13
14
X-Y
X
12
INH
Y
11
S U63
4053
6
C336 10pF
22uF C141
PGM1LTACN
LINE6_LT_HI
HI
R211 20.0K
LINE6_LT_LO
LO
R240 20.0K
C190
0.001uF
AGND
AGND
R294
33pF
LINE 5 IN
R212 6.19K
2
9
-2dBu
R322 20.0K
4
1
9
CH 5
R320 20.0K
8
R195 20.0K
LINE
5 RT
GAIN
3.92K
LINE5_RT_LO
R241 20.0K
SH
C201
0.001uF
0.001uF
6
3.32K
AGND
5
8
10K B3 B2 C317 22uF
6
R393 22.1K
CR8 B1
V-
5
C
R265 6.19K
C154
SW4
5
3
LINE7_LT_LO
R236 20.0K
C215
C187
0.001uF
0.001uF
AGND
AGND
AGND
X-Y
X
INH
Y
S U51
4053
X-Y
X
INH
Y
S U51
4053
4
CUEACN
5
1
2
AGND
AGND
AGND
1
6
2
R209 6.19K
3.32K
LINE6_RT_HI
R194 20.0K
+4dBu BAL
LINE6_RT_LO
R413 88.7K
R353 10.0K
R237 20.0K
SH
C214
C200
0.001uF
0.001uF
AGND
5
AGND
AGND
LINE8_LT_HI
HI
C152
R205 20.0K
LINE 7 IN
LO
3
LO
R232 20.0K
R354 10.0K
2
4
1
5532
U73
6
9
-2dBu
R316 20.0K
4
6
1
9
CH 7
3
R314 20.0K
R234
3.92K
LINE7_RT_LO
R233 20.0K
LINE
7 RT
GAIN
SH
C199
0.001uF
0.001uF
6
R275
3.32K
AGND
AGND
R352 10.0K
C296 10pF
15
6
5
4
C150
10
22uF C136
8
10K B3 B2 C313 22uF
6
R389 22.1K
CR10 B1
V-
5
AGND
AGND
10
-2dBu
R390 88.7K
V+
-2dBu
C212
15
6
7
R261 6.19K
R289
33pF
V+
5
PGM2LTACN
-2dBu
R392 88.7K
10K B3 B2 C315 22uF
6
R391 22.1K
CR9 B1
V-
5
R355 10.0K
V+
R318 10.0K
7
5532
U74
3
4
5
1
2
1
2
6
V-
CUEACN
5
PGM1RTACN
13
X-Y
X
12
INH
Y
U50
S
4053
GND
PGM2RTACN
C
AGND
3.92K
4
6
LINE
8 LT
GAIN
R274
3.32K
1
5532
U40
AGND
-14dBu
R412 22.1K
CR11 A1 A2
10K A3
C312 22uF
100uF C277
R411 88.7K
R350 10.0K
14
6
11
C330 10pF
22uF C135
C211
C181
0.001uF
0.001uF
AGND
AGND
14
AGND
X-Y
X
INH
Y
S U49
4053
X-Y
X
INH
Y
U61
S
4053
100uF C278
4
VGND
R288
33pF
CUEACN
5
1
2
13
X-Y
X
12
INH
Y
S U60
4053
PGM1LTACN
R203 6.19K
2
R230
3.92K
8
HI
LINE8_RT_HI
R192 20.0K
R313 20.0K
LINE8_RT_LO
R229 20.0K
SH
C198
5
0.001uF
0.001uF
AGND
6
3.32K
AGND
10
-2dBu
R388 88.7K
R349 10.0K
C294 10pF
V+
15
6
7
5532
U40
4
C148
10
22uF C134
8
10K B3 B2 C311 22uF
6
R387 22.1K
CR11 B1
V-
5
R259 6.19K
R287
33pF
AGND
15
R273
AGND
AGND
V+
R312 10.0K
7
5532
U72
14
6
100uF C276
-14dBu
11
AGND
4
V-
3.92K
AGND
APPROVALS
OUT OF PHASE
PGM2LTACN
5
X-Y
X
INH
Y
U60
S
4053
3
B
CUEACN
5
1
2
1
PGM1RTACN
2
13
X-Y
X
12
INH
Y
S U48
4053
PGM2RTACN
AGND
MBUSBA1-1
600 Industrial Drive
New Bern, NC 28562
DB
ISSUED
WWP
W# 700985
3
A
DATE
CHECKED
4
X-Y
X
INH
Y
S U48
4053
GND
DRAWN AC/WWP 12-12-11
5
3
AGND
- SA UR US - Sergey Averin -
6
X-Y
X
INH
Y
U48
S
4053
9
CH 8
3
-2dBu
C210
AGND
7
4
6
+4dBu BAL
13
PGM2RTACN
9
-2dBu
6
1
LINE
8 RT
GAIN
X-Y
X
INH
Y
S U60
4053
6
R311 20.0K
1
PGM1RTACN
4
1
5532
U72
AGND
AGND
SW3
C179 33pF
2
3
3.92K
AGND
3
X-Y
X
6
12
INH
Y
11
S U49
4053
-14dBu
AGND
X-Y
X
INH
Y
U49
S
4053
R351 10.0K
2
R260 6.19K
NOTE: PHASE SYMBOLS DENOTE SIGNAL POLARITY
AIR-1 / Feb 2012
3
6
14
100uF C280
CONTRACT NO.
8
PGM2LTACN
5
AGND
A
IN PHASE
D
PGM1LTACN
3
15
11
AGND
X-Y
X
INH
Y
S U50
4053
X-Y
X
INH
Y
10
S U62
4053
-14dBu
R291
2
C163
LO
R315 10.0K
7
5532
U73
3.92K
AGND
X-Y
X
INH
Y
S U61
4053
SH
3
AGND
AGND
5532
U41
3.32K
10
3.92K
+4dBu BAL
LINE8_LT_LO
15
6
8
R263 6.19K
X-Y
X
INH
Y
S U50
4053
9
22uF C138
33pF
PGM1LTACN
4
R277
AGND
13
X-Y
X
12
INH
Y
11
S U61
4053
6
R319 20.0K
C298 10pF
7
5532
U42
4
AGND
14
9
CH 6
3
LINE
6 RT
GAIN
X-Y
X
INH
Y
U62
S
4053
6
-2dBu
V+
C180 33pF
100uF C279
4
6
1
-2dBu
13
PGM2RTACN
R357 10.0K
1
5532
U74
6
-14dBu
3.92K
+4dBu BAL
3.92K
R231
AGND
R290
33pF
R193 20.0K
X-Y
X
12
INH
Y
11
S U62
4053
6
-2dBu
SW4
LINE7_RT_HI
13
14
R317 20.0K
R238
R276
C332 10pF
R262 6.19K
8
HI
2
AGND
22uF C137
C182 33pF
R356 10.0K
AGND
AGND
SW5
SW3
1
R206 6.19K
100uF C281
R415 88.7K
3
3.92K
8
PGM1RTACN
HI
GND
CR10 A1 A2
R414 22.1K
10K A3
C314 22uF
AGND
B
-14dBu
R292
C185 33pF
X-Y
X
6
12
INH
Y
11
U51
S
4053
V-
2
C165
AGND
C334 10pF
AGND
3
15
14
100uF C282
C184
0.001uF
3.32K
CR9 A1 A2
R416 22.1K
10K A3
C316 22uF
33pF
LINE 8 IN
0.001uF
R278
2
-2dBu
C213
SH
LINE
6 LT
GAIN
R264 6.19K
C167
AGND
R204 6.19K
2
3
PGM2LTACN
4
LINE
7 LT
GAIN
3.92K
5532
U41
6
22uF C139
6
R235
C183 33pF
+4dBu BAL
5
AGND
R207 6.19K
R208 20.0K
SH
3
LO
R321 10.0K
7
5532
U75
3.92K
AGND
LINE7_LT_HI
V+
-14dBu
R293
33pF
X-Y
X
INH
Y
U63
S
4053
X-Y
X
INH
Y
10
S U63
4053
22uF C140
7
5532
U43
4
AGND
R358 10.0K
C300 10pF
AGND
AGND
10
-2dBu
R394 88.7K
V+
-2dBu
C216
15
R279
6
+4dBu BAL
LO
6
6
3
R242
LINE5_RT_HI
HI
4
1
5532
U75
AGND
AGND
SW6
C188 33pF
LO
3
3.92K
AGND
HI
R360 10.0K
2
AGND
4
1
5532
U42
1
-2dBu
R266 6.19K
C169
2
2
+4dBu BAL
LINE 6 IN
C217
0.001uF
3.92K
C186 33pF
-14dBu
-2dBu
SH
5
R280
1
5532
U43
3
4
2
+4dBu BAL
4
6
R243
C189 33pF
5
SIZE FSCM NO.
D
SCALE
2
DWG. NO.
22S1003-5
MBUSBA1-1 PCB
SHEET
REV
_
5 OF 9
1
page 4 - 7
8
7
6
5
4
3
2
1.30K R190
VDD
Z10
C5V1
5.1V
D
1
Z9
C5V1
5.1V
V+
C131
C244
C274
C243
C273
C242
C272
C241
C271
C240
C270
C239
C269
C275
C245
C344
C126
C128
C125
C109
C363
C30
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
22uF
0.1uF
0.1uF
330uF
C130
C233
C263
C232
C262
C231
C261
C230
C260
C229
C259
C228
C258
C264
C234
C343
C127
C129
C124
C96
C348
C31
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
0.22uF
22uF
0.1uF
0.1uF
330uF
AGND
1.30K R189
VEE
D
V-
V+
C339
C172
C337
C170
C335
C168
C333
C166
C331
C164
C329
C162
C160
C327
C325
C250
C248
C222
C224
C265
C267
C361
C62
C111
C116
C114
C51
C49
C323
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
C305
C159
C303
C157
C301
C155
C299
C153
C297
C151
C295
C149
C147
C293
C291
C236
C238
C205
C207
C253
C255
C346
C53
C98
C115
C117
C50
C48
C289
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
AGND
V-
C
C
VCC
R148 20.0K
R141 10.0K
4148 D11
C85
1uF
R149 10.0K
GND
4148 D8
D7 4148
R62 332
-21dB
R61 332
-18dB
R60 332
-15dB
R59 332
-12dB
U18
VCC
8
SWTLTVU
R139 10.0K
V+
2
2
3
1
TL072
U28
4148 D9
3
R140 10.0K
6
5
AGND
4
1
7
TL072
U28
D6 4148
V-
4
R137 1.00K
5
R147
C77
100K
1uF
6
7
R102 562
R93 1.69K
8
AGND
AGND
R104
AGND
B
9
R94
562
3.32K
LED1 LED2
VLED3
V+
LED4
RLO LED5
SIG
LED6
RHI
LED7
REFOUT LED8
REFADJ LED9
MODE LED10
18
17
16
14
-9dB
R57 332
-6dB
R56 619
-3dB
13
12
11
10
LM3915
R55 619
0dB
R54 619
+3dB
R53 619
AGND GND AGND
AGND
R58 332
15
C95 33pF
PGM1LTMON
R182 10.0K
4
6
9
PGM2LTMON
LEFT
R138 20.0K
R180 10.0K
15
6
10
EXTLTMON
R181 10.0K
14
6
11
PGM1RTMON
R179 10.0K
4
6
9
+6dB
PGM2RTMON
EXTRTMON
R177 10.0K
X-Y
X
INH
Y
U36
S
4053
X-Y
X
INH
Y
S U36
4053
6
11
X-Y
X
INH
Y
S U35
4053
VCC
C82
C65
1uF
1500uF
GND
D3 4148
R40 332
-21dB
R39 332
-18dB
R38 332
-15dB
R37 332
-12dB
R36 332
-9dB
R35 332
-6dB
R34 619
-3dB
R33 619
0dB
R32 619
+3dB
R31 619
+6dB
U16
R135 10.0K
V+
3
1
TL072
U27
4148 D5
3
R136 10.0K
6
5
AGND
4
1
2
2
V-
TL072
U27
7
D2 4148
4
R133 1.00K
R144
100K
5
6
C76
1uF
7
R101 562
R89 1.69K
AGND
A
AGND
AGND
R103
562
AGND
AGND
V-
B
1
R172 10.0K
2
C110 33pF
X-Y
X
12
INH
Y
S U35
4053
2
3
5532
U29
1
R173 100
SWTRTVU
AGND
R90
3.32K
8
9
LED1 LED2
VLED3
V+
LED4
RLO LED5
SIG
LED6
RHI
LED7
REFOUT LED8
REFADJ LED9
MODE LED10
LM3915
AGND GND AGND
18
17
16
15
14
13
12
11
10
NOTE: PHASE SYMBOLS DENOTE SIGNAL POLARITY
IN PHASE
- SA UR US - Sergey Averin -
APPROVALS
6
5
4
OUT OF PHASE
MBUSBA1-1
CONTRACT NO.
3
A
DATE
DRAWN AC/WWP 12-12-11
600 Industrial Drive
New Bern, NC 28562
DB
WWP
W# 700985
AIR-1 / Feb 2012
4
5
ISSUED
7
SWTLTVU
3
CHECKED
8
R142 100
AGND
VCC
SWTRTVU
2
VCC
GND
8
7
5532
U29
4148 D10
R146 10.0K
4148 D4
5
1
RIGHT
R145 20.0K
6
13
GND
R134 20.0K
5
13
X-Y
X
6
INH
Y
10
U35
S
4053
14
3
X-Y
X
12
INH
Y
S U36
4053
15
R178 10.0K
V+
8
SIZE FSCM NO.
D
SCALE
2
DWG. NO.
22S1003-6
MBUSBA1-1 PCB
SHEET
REV
_
6 OF 9
1
page 4 - 8
8
7
6
5
4
3
2
1
-2dBu
R339 10.0K
R343 4.99K
SW2
C268 33pF
-2dBu
8
2
1
22uF C256
R344 10.0K
2
3
AGND
4
C254 33pF
V+
-2dBu
1
5532
U59
R347 10
R333 4.99K
AGND
PGM 1
SW12
R348 10.0K
R346 10.0K
R307 10.0K
7
R338 10
PGM1_LT_LO
R334 47
-2dBu
LO
PGM1RTMON
HI
22uF C246
1
R341 4.99K
3
5
22uF C226
R202 20.0K
3.32K
2
+4dBu BAL
EXT_LT_HI
SH
PGM1_RT_HI
R309 47
R228 20.0K
C209
C178
0.001uF
0.001uF
3
22uF C133
1
5532
U39
R258 6.19K
C161
AGND
C266 33pF
8
7
D
R272
EXTLTMON
-2dBu
6
5532
U56
EXT_LT_LO
AGND
R335 4.99K
-2dBu
PGM1RTACN
EXT
LT
GAIN
-2dBu
6
2
4
6
3.92K
C177 33pF
5532
U59
V-
4
PGM1
MONO
-2dBu
C235 33pF
5
4
5
R227
6
5
V-
R201 6.19K
R342 10.0K
C252 33pF
V+
2
3
-2dBu
1
5532
U58
R345 10
R331 4.99K
AGND
AGND
4
5532
U58
7
R336 10
PGM1_RT_LO
R332 47
AGND
R286
33pF
3.92K
AGND
6
5
AGND
AGND
SW2
EXT IN
3
R337 4.99K
V+
5532
U56
PGM1_LT_HI
PGM 1 LT
PGM1LTACN
R310 47
PGM 1 RT
D
PGM1LTMON
-2dBu
C249 33pF
8
22uF C247
R200 6.19K
2
3
R226
V-
3.92K
C176 33pF
AGND
8
LO
-2dBu
C
22uF C175
HI
PGM2LTMON
EXT_RT_LO
R191 20.0K
R225 20.0K
EXT
RT
GAIN
R271
3.32K
V+
-2dBu
6
+4dBu BAL
EXT_RT_HI
1
5
22uF C132
7
5532
U39
C
EXTRTMON
-2dBu
R301 4.99K
-2dBu
C251 33pF
PGM2LTACN
-2dBu
8
1
5532
U57
22uF C257
R302 10.0K
4
C206 33pF
V+
2
3
AGND
R255 4.99K
V+
2
3
AGND
C225 33pF
-2dBu
1
5532
U47
R305 10
R223 4.99K
AGND
PGM 2
SW11
R308 10.0K
R306 10.0K
5
R304 10.0K
2
5532
U47
7
R256 10
22uF C174
PGM2RTMON
R198 47
PGM2_RT_HI
R222 47
PGM2_RT_LO
6
R299 4.99K
3
C223 33pF
8
5
7
22uF C227
R300 10.0K
R253 4.99K
C204 33pF
V+
2
3
B
C146
R257 6.19K
R285
33pF
3.92K
AGND
AGND
1
6
5532
U57
AGND
-2dBu
AGND
-2dBu
PGM2RTACN
0.001uF
AGND
V-
PGM2_LT_LO
R224 47
V-
4
PGM2
MONO
-2dBu
C237 33pF
4
0.001uF
4
6
5
V-
C197
PGM 2 RT
8
SH
PGM2_LT_HI
R199 47
PGM 2 LT
R340 10.0K
C208
-2dBu
1
5532
U46
R303 10
R221 4.99K
6
5
AGND
AGND
4
5532
U46
7
R254 10
B
VAGND
R47 10.0K
R86 88.7K
22uF C57
CUE_MON
R99 47
CUE_OUT
-2dBu
C52 33pF
6
5
5532
U8
7
-2dBu
-14dBu
22uF C39
8
10K 3 2
CR3 1
R85 22.1K
V+
2
C75 22uF
3
AGND
CUE
C63 10pF
CUEACN
1
5532
U8
R100 10
AGND
CUE
AGND
4
V-
A
- SA UR US - Sergey Averin -
APPROVALS
NOTE: PHASE SYMBOLS DENOTE SIGNAL POLARITY
IN PHASE
OUT OF PHASE
WWP
W# 700985
7
6
5
4
3
600 Industrial Drive
New Bern, NC 28562
DB
ISSUED
8
A
DATE
DRAWN AC/WWP 12-12-11
CHECKED
AIR-1 / Feb 2012
MBUSBA1-1
CONTRACT NO.
SIZE FSCM NO.
D
SCALE
2
DWG. NO.
22S1003-7
MBUSBA1-1 PCB
SHEET
REV
_
7 OF 9
1
page 4 - 9
7
6
5
4
AGND
PGM1LTMON
R188 10.0K
4
6
9
D
PGM2LTMON
R186 10.0K
15
6
10
EXTLTMON
R187 10.0K
PGM1RTMON
R185 10.0K
R183 10.0K
EXTRTMON
8
2
R184 10.0K
X-Y
X
INH
Y
S U37
4053
3
AGND
X
Y
3.32K R400
D
3
R408 10
1
5532
U70
-2dBu
AGND
V-
1
2
X
Y
15
X-Y
6
INH
U71 S 10
4053
AGND
-2dBu
R383 40.2K
1
MON_LT_OUT
2
-2dBu
4
R374 47
C328 10pF
1
5532
U30
1
R407 40.2K
4
X-Y
6
INH
U71 S 9
4053
V+
MONITOR
-2dBu
R143 10.0K
2
C292 10pF
C97 33pF
R402 10.0K
3.32K R409
8
13
X-Y
X
12
INH
Y
11
U37
S
4053
6
GND
6
5
5532
U30
7
R378 20.0K
22uF C78
1
3
AGND
AGND
C
5
5
X-Y
X
INH
Y
S U37
4053
14
3
R399 40.2K
2
3
10
R377 10.0K
1
X-Y
X
INH
Y
U38
S
4053
4
6
C310 22uF
2
3.32K R385
-14dBu
C112 33pF
13
15
22uF C79
R174 10.0K
5
X-Y
X
6
12
INH
Y
11
S U38
4053
9
PGM2RTMON
3
X-Y
X
INH
Y
S U38
4053
14
6
CR12 A1 A2
10K A3
3
MONITOR
8
10K B3 B2
CR12 B1
C309 22uF
AGND
-14dBu
R410 20.0K
4
6
R386 40.2K
SW13
13
X
12
Y
2
5
3.32K R401
5
4
R384 10
7
5532
U70
AGND
CUE
MONITOR
SPLIT
V+
6
14
X-Y
6
INH
U71 S 11
4053
R373 47
MON_RT_OUT
V-
AGND
C
CUE_MON
ONAIR_TALLY
R381 88.7K
C290 10pF
3.32K R429
R382 22.1K
3
R432 10.0K
5
X
Y
3.32K R433
X-Y
INH
U80 S
4053
6
R455 10.0K
4
6
5
9
C364 33pF
AGND
-2dBu
CR13 A1 A2
10K A3
2
3
1
5532
U79
-14dBu
AGND
R406 22.1K
R405 88.7K
2
X
Y
C326 10pF
22uF C351
8
15
X-Y
6
INH
U80 S 10
4053
HDPN_LT
R375 332
C308 22uF
AGND
1
R376 332
7
5532
U69
V+
2
3
AGND
HDPN
R428 10.0K
B
1
5532
U69
4
AGND
HDPN
R423 10.0K
V-
B
C347 33pF
R443 10.0K
-2dBu
3.32K R456
8
R424 20.0K
1
3
R457 20.0K
4
6
R430 10.0K
SW14
13
12
2
5
CUE
HDPN
SPLIT
3.32K R442
R454 88.7K
X
Y
14
V+
C362 10pF
6
X-Y
6
INH
U80 S 11
4053
5
GND
AGND
AGND
7
5532
U79
22uF C350
10K B3 B2
4
V-
C349 22uF
R453 22.1K
2
CR13 B1
3
AGND
HDPN_RT
R431 332
1
5532
U78
-14dBu
AGND
R425 22.1K
R426 88.7K
R427 332
C345 10pF
8
V+
6
5
AGND
A
7
5532
U78
4
V-
- SA UR US - Sergey Averin -
APPROVALS
NOTE: PHASE SYMBOLS DENOTE SIGNAL POLARITY
IN PHASE
OUT OF PHASE
WWP
W# 700985
7
6
5
4
3
600 Industrial Drive
New Bern, NC 28562
DB
ISSUED
8
A
DATE
DRAWN AC/WWP 12-12-11
CHECKED
AIR-1 / Feb 2012
MBUSBA1-1
CONTRACT NO.
SIZE FSCM NO.
D
SCALE
2
DWG. NO.
22S1003-8
MBUSBA1-1 PCB
SHEET
REV
_
8 OF 9
1
page 4 - 10
8
7
6
5
+3.3V
4
3
2
1
U4
2
OUT IN
GND
LT1117 1
C38
10uF
VCC
3
R30 53.6K
C37
C47
0.1uF
150uF
C44 68pF
D
D
L
AGND
R45 22.1K
R29 3.92K
C56 10uF
2
3
0.001uF
AGND
+3.3V
+3.3V
+3.3V
R44 100
R24
40.2K
C28
5
C9
2
DP
3
U1
74LVC1G08
AGND
DM
2
VBUS
1
R4
R2
13.3K
1.69K
+3.3V
2
R3 22
3
R7
1.0M
AGND
R12
1.69K
1.69K
1.69K
OPA2353
U7
V-
OPA2353
U7
RS8L
USB_OUT_LT_LO
AGND
+3.3V
1
R13
AGND
V+
U2
R1 22
R14
4
10uF
4
AGND
3
AGND
4
C18
0.1uF
1
0.1uF
CT3
AGND
USB_OUT_LT_HI
C36 10uF
+3.3V
8
USB
TS8L
1
OPA2353
U7
C29
4
5
6
AGND
7
C
8
9
10uF C22
10
11
12
13
14
C40
D+
DVBUS
VDDI
DGND
DGNDU
TEST1
HID0
TEST0
HID1
HID2
VCCXI
AGNDX
SEL0
XTI
SEL1
XTO
VCCCI
VCCP2I
AGNDC
AGNDP
VIN_L
VCCP1I
VIN_R
VOUT_L
VOUT_R
VCOM
PCM2900B
10uF
AGND
______ 28
SSPND
C8 10uF
27
C17
C16
C25
C24
10pF
10pF
10pF
10pF
R43 53.6K
C43 68pF
Y1
26
_
E/D
25
R
OUT
AGND
12.000MHz
24
R66 22.1K
C15 0.1uF
23
R23 3.92K
6
OPA2353
U7
C55 10uF
C26
22
5
TS8R
7
R27 100
USB_OUT_RT_HI
C19 10uF
0.001uF
C
21
R15 1.0M
R28
20
AGND
40.2K
C23 0.1uF
19
2
18
17
AGND
OSCILATOR_12.000MHz
GND
Y1
RS8R
USB_OUT_RT_LO
AGND
16
15
R10
R9
C34
C27
3.3
3.3
0.1uF
10uF
R25 11.0K
C33 68pF
AGND
AGND
AGND
AGND
AGND
L
2
C41 10uF
1
OPA2353
U3
R22 100
R41 3.92K
R46 11.0K
USB_IN_LT_HI
R48 10K
C45 10uF
C32
3
0.001uF
R49
3.32K
AGND
USB_IN_LT_LO
PGM1_LT_HI
PGM2_LT_HI
PGM1_LT_LO
PGM2_LT_LO
B
1
SW52
3
4
6
2
USB_IN_LT_HI
5
USB_IN_LT_LO
B
R26 11.0K
L
C35 68pF
R
6
C54 10uF
7
OPA2353
U3
R65 100
R42 3.92K
R52 11.0K
USB_IN_RT_HI
R51 10K
C46 10uF
C42
5
0.001uF
R50
3.32K
AGND
+3.3V
8
4
USB_IN_RT_LO
V+
OPA2353
U3
V-
OPA2353
U3
PGM1_RT_HI
PGM2_RT_HI
PGM1_RT_LO
PGM2_RT_LO
AGND
1
SW51
3
4
6
2
USB_IN_RT_HI
5
USB_IN_RT_LO
R
A
MBUSBA1-1
CONTRACT NO.
- SA UR US - Sergey Averin -
APPROVALS
DATE
DRAWN AC/WWP 12-12-11
CHECKED
WWP
W# 700985
AIR-1 / Feb 2012
7
6
5
4
3
600 Industrial Drive
New Bern, NC 28562
DB
ISSUED
8
A
SIZE FSCM NO.
D
SCALE
2
DWG. NO.
22S1003-9
MBUSBA1-1 PCB
SHEET
REV
_
9 OF 9
1
page 4 - 10a
AIR 1 / Feb 2012
Mother Board Load Sheet - Sheet 1 of 2
page 4 – 11
AIR 1 / Feb 2012
Mother Board Load Sheet - Sheet 2 of 2
page 4 – 11a
4
3
2
1
D
VU
LEVEL
DS21
DS20
DS19
DS18
DS17
DS16
DS15
DS14
DS13
DS12
DS11
VCC
TALLY_LED
DS10
VCC
DS9
DS8
DS7
DS6
DS5
DS4
DS3
DS2
DS1
GND
D
LT
VU
LEVEL
RT
C
C
2
TALLY_LED
3
3
4
4
5
5
6
6
B
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
VCC
GND
A
APPROVALS
DATE
DRAWN
SA 9-19-07
CHECKED
SA
ISSUED
SA
W# 700929
3
2
A
VUA1-2
CONTRACT NO.
- SA UR US - Sergey Averin -
AIR 1 / Dec 2007
+6dB
GND
1
2
4
+3dB
0dB
-3dB
-6dB
CT2
1
B
-9dB
VCC
-12dB
-15dB
-18dB
-21dB
ON AIR
+6dB
+3dB
0dB
-3dB
-6dB
-9dB
-12dB
-15dB
-18dB
-21dB
CT1
600 Industrial Drive
New Bern, NC 28562
SIZE FSCM NO.
DWG. NO.
22S1002
C
SCALE
VUA1-2 PCB
SHEET
REV
_
1 OF 1
1
page 4 - 12
SCHEMATIC DRAWINGS
Meters PCB Load Sheet
AIR 1 / Dec 2007
page
page44––13
2
APPENDICES
Appendices
Appendix 1
AIR 1 Console Performance Specifications .............................. A-3
Appendix 2
Replacement Parts List ............................................................... A-5
AIR 1 / Dec 2007
page Appendix – 1
APPENDICES
Appendix 1
Contents
AIR 1 Performance Specifications .............................................. A-3
AIR 1 / Dec 2007
page Appendix – 2
APPENDICES
AIR 1 Performance Specifications
FREQUENCY RESPONSE
Line, 20Hz
Line, 20kHz
Mic, 20Hz
Mic, 20kHz
HEADROOM
-0.05dB
-0.05dB
-0.10dB
-0.10dB
DYNAMIC RANGE
Line, unity gain
Mic, 54dB gain
116dB
99dB
OFF ISOLATION
-100dB
-96dB
-128
MAXIMUM GAIN
-95dB
1kHz
20kHz
<0.003%
<0.02%
-116dB
-100dB
Line
Mic
+20dB
+77dB
PHASE RESPONSE
Line, 20Hz-20kHz
<0.006%
<0.006%
DIM
Line, +24dBu
Mic
BUS CROSSTALK
93dB
82dB
IMD (SMPTE)
Line, +4dBu
Mic, +24dBu
12V/µs
1kHz
THD+N (20Hz-20kHz)
Line, +12dBu
Mic (1kHZ), +24dBu
SLEW RATE
STEREO SEPARATION
NOISE
Mic EIN
24dB
1kHz
20kHz
S/N RATIO (ref +8dBu)
Line
Mic
+4dBu
<0.002%
<0.006%
±12°
DIMENSIONS
Width
Depth
Height (rear)
Height (front)
15.195”
11.511”
2.442”
1.283”
MAXIMUM INPUT
Line
Mic, minimum trim
+28dBu
-4dBu
MAXIMUM OUTPUT
Line
+28dBu
Specifications and features subject to change without notice.
AIR 1 / Dec 2007
page Appendix – 3
APPENDICES
Appendix 2
Contents
Replacement Parts List ............................................................... A-5
For the most part there are no user-replaceable parts in the
AIR 1 console. Exceptions are those controls and components that in the
course of normal use may need maintenance (i.e., faders, pots, ON
switches, etc.). A complete list of available components is shown on the
next page. Contact Audioarts Engineering technical support for further
information.
Audioarts Engineering (600 Industrial Drive, New Bern, North Carolina,
USA 28562) may be reached by phone at 252-638-7000, fax 252-637-1285,
electronic mail “[email protected]”.
AIR 1 / Dec 2007
page Appendix – 4
APPENDICES
REPLACEMENT PARTS — AIR 1 CONSOLE
COMPONENT
DESCRIPTION
WS P/N
MBUSB-A1 LOADED CARD ASSY
MOTHERBOARD LOADED CARD ASSEMBLY
"009789"
VU-A1 LOADED CARD ASSY
VU METERS LOADED CARD ASSEMBLY
"009715"
FADER
100MM LOW PROFILE MASTER TYPE N FADER ROHS COMPLIANT
"540061"
FADER KNOB
BLACK FADER KNOB, 11mm FOR 3000 SERIES FADER FOR LINE INPUT
"520001"
FADER KNOB
GREY FADER KNOB, 11mm FOR 3000 SERIES FADER FOR MONITOR AND
HEADPHONE OUTPUT
"520004"
FADER KNOB
RED FADER KNOB, 11mm FOR 3000 SERIES FADER FOR MICROPHONE INPUT
"520006"
POT
"CUE" 10K SINGLE LINEAR VERTICAL POT
"500126"
POT KNOB
15mm BLACK PUSH-ON KNOB FOR 6mm SHAFT FOR "CUE" POT
"520125"
POT CAP
11MM BLACK CAP W/WHITE LINE FOR "CUE" POT
"530037"
NKK SWITCH
JB15 SWITCH W/BRIGHTER RED LED AND SILICON GASKET
"510290"
SWITCH
SINGLE POLE MOMENTARY SWITCH W/YELLOW LED
"510296"
SWITCH CAP
WHITE SWITCH CAP
"530004"
SWITCH CAP
CUSTOM MILKY WHITE STYRENE WITH UV INHIBITOR LIGHT PIPE BUTTON
"530274"
RCA CONNECTORS
STACKED DUAL THREADED JACK WITH METAL RING FOR ANALOG I/O
CONNECTIONS
"260081"
XLR CONNECTORS
XLR JACK FOR MICROPHONE CONNECTIONS
"260082"
USB CONNECTOR
USB-B RT ANGLE CONNECTOR
"260090"
HEADER
HEADER R/A_20 PIN SNAP
POWER SUPPLY
25W TRIPLE OUTPUT DESKTOP POWER SUPPLY
"980038"
POWER CONNECTOR
RIGHT ANGLE DIN RECEPTACLE ROHS COMPLIANT
"260083"
MANUAL
TECHNICAL MANUAL FOR AIR 1 CONSOLE
"009797"
AIR 1 / Dec 2007
"250081A"
page Appendix – 5
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