Air-1 Owner`s Manual

A I R 1

R

ADIO

M

IXING

C

ONSOLE

T

ECHNICAL

M

ANUAL

December 2007

©2007 Audioarts

®

Engineering*

AUDIOARTS ENGINEERING

600 Industrial Drive

New Bern, North Carolina 28562

252-638-7000

*a division of Wheatstone Corporation

C O N T E N T S

AIR 1 Technical Manual

Table of Contents

Chapter 1 – Installation 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

AIR 1 / Dec 2007

page Contents – 1

C O N T E N T S

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

MBA1-1 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 2007

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I N S T A L L A T I O N a n d P O W E R

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

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11.51

I N S T A L L A T I O N a n d P O W E R

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

2.44

11.51

1.28

page 1 – 2

AIR 1 / Dec 2007

I N S T A L L A T I O N a n d P O W E R

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

3

5 2 4

1

PIN #

1

4

5

2

3

OUTPUT

COM

COM

+5VDC

-15V

+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.

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 discon-

necting the cable that connects the console and power supply adapter together.

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.

page 1 – 3

I N S T A L L A T I O N a n d P O W E R

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.

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 conne cted 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.

A 5-pin DIN connector is provided to accept console power from the external power supply.

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I N S T A L L A T I O N a n d P O W E R

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

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I N S T A L L A T I O N a n d P O W E R

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

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I N S T A L L A T I O N a n d P O W E R

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

AIR 1 / Dec 2007

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C O N S O L E F E A T U R E S

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

AIR 1 / Dec 2007

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C O N S O L E F E A T U R E S

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 / Dec 2007

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C O N S O L E F E A T U R E S

AIR 1 / Dec 2007

AIR 1 Bottom Panel

page 2 – 3

C O N S O L E F E A T U R E S

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. The mic preamps are set for a gain of

54dBu, but each mic pre has its own recessed GAIN control, located beneath the

XLR input connector, to allow field adjustment to compensate for differences in microphone characteristics.

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 MBA1-1 PCB) and EXTERNAL (SW 2 on

MBA1-1 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.

page 2 – 4

Outputs

C O N S O L E F E A T U R E S

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 MBA1-1 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 MBA1-1 PCB) slide switch, when activated (UP), sends cue to the monitor.

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C O N S O L E F E A T U R E S

Split Cue, Monitor

The MONITOR SPLIT CUE (SW 3 on MBA1-1 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 MBA1-1 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 MBA1-1 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.

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C O N S O L E F E A T U R E S

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 userprovided 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.

N.O.

"TALLY" TRS

CONNECTOR PIN

COM

30VDC PIN

R

2A max

PIN

T

1N4002

+

ECG

B40240

– or equiv.

relay

+

YOUR

POWER

SUPPLY

RELAY CIRCUIT POWERED BY USER

SUPPLIED EXTERNAL SUPPLY

AIR 1 / Dec 2007

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C O N T R O L S A N D F U N C T I O N S

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

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C O N T R O L S A N D F U N C T I O N S

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 / Dec 2007

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C O N T R O L S A N D F U N C T I O N S

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.

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C O N T R O L S A N D F U N C T I O N S

Master Section

The Master section includes the monitor, headphone, and meters controls.

AIR 1 / Dec 2007

page 3 – 4

C O N T R O L S A N D F U N C T I O N S

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!

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C O N T R O L S A N D F U N C T I O N S

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

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C O N T R O L S A N D F U N C T I O N S 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 / Dec 2007

page 3 – 7

S C H E M A T I C D R A W I N G S

Schematic and Load Sheet

Drawings

Chapter Contents

Console Flow Diagram ................................................................. 4-2

MBA1-1 Mother Board

Schematic ................................................................................................................. 4-3

Load Sheet ............................................................................................................... 4-11

VUA1-2 Meters PCB

Schematic ................................................................................................................ 4-12

Load Sheet ............................................................................................................... 4-13

AIR 1 / Dec 2007

page 4 – 1

MIC 1

XLR

H

L

TRIM

F

A

D

E

R

MIC CHANNEL

ON/OFF

PGM 1

PGM 2

LOGIC

MIC MUTE

SLIDE SW

MUTE/TALLY BUS

ON MBA1-1 PCB

PGM

FET

SW

PGM 1 ACN

PGM 2 ACN

ON/OFF

PGM 1

PGM 2

LOGIC

H

LT

LINE INPUT

RT

1/4" RTS

L

L

H

INPUT CHANNEL

L

LINE LT GAIN

SW

R

LINE RT GAIN

SW

L

F

A

D

E

R

R

PGM

FET

SW

CUE

FET

SW

CUE

LOGIC

PGM 1 ACN

PGM 2 ACN

CUE ACN

CUE SENSE

L

PGM 1 ACN

R

SLIDE SW

AIR 1 / Dec 2007

L

PGM 2 ACN

R

SLIDE SW

PROGRAM

L

R

L

R

L

PGM 1 LT MONITOR

H

PGM 1 LT OUT

L

R

PGM 1 RT MONITOR

H

PGM 1 RT OUT

L

1/4" RTS

L

PGM 2 LT MONITOR

H

PGM 2 LT OUT

L

R

PGM 2 RT MONITOR

H

PGM 2 RT OUT

L

1/4" RTS

VU METERS

PGM 1 LT MON

PGM 1 RT MON

PGM 2 LT MON

PGM 2 RT MON

EXT LT MON

EXT RT MON

VU

FET

SW

L

R

LOGIC

EXT

PGM 1

PGM 2

N.O.

DRY

RELAY

MUTE/TALLY BUSS

LOGIC

DRIVER

SWITCHED

METERS

TO BRIDGE

TALLY

1/4" RTS

TO TALLY LED

TO BRIDGE

H

LT

L

EXT IN

H

RT

1/4" RTS

L

L

EXT LT GAIN

SW

EXT LT MONITOR

R

EXT RT GAIN

SW

EXT LT MONITOR

EXTERNAL IN

AIR 1

System Flow Diagram

CUE

CUE ACN

CUE MON

L

E

V

E

L

CUE OUT

1/4" RTS

CUE SENSE

HEADPHONE

F

A

D

E

R

CUE MON

EXT

PGM 1

PGM 2

CUE TO MON

CUE TO MON SPLT

ON AIR TALLY

CUE SENSE

CUE TO MON

ENABLE

SLIDE SW

ON MBA1-1 PCB

LOGIC

MON SPLIT

MODE

SLIDE SW

ON MBA1-1 PCB

PGM 1 LT MON

PGM 1 RT MON

PGM 2 LT MON

PGM 2 RT MON

EXT LT MON

EXT RT MON

CR

FET

SW

L

R

F

A

D

E

R

CUE MON

MUTE / TALLY BUS

LOGIC

HDPN SPLIT

MODE

SLIDE SW

ON MBA1-1 PCB

FET

SW

FET

SW

L

R

L

HDPN OUT

R

HDPN

JACK

CR MONITOR

L

H

L

CR LT OUT

R

H

CR RT OUT

L

1/4" RTS

page 4 - 2

D

C

B

8

AGND

MIC "1" IN

CT1

2

HI

1 -50dBu BAL

3

LO

MIC1_IN_HI

MIC1_IN_LO

S

3A

CT3

R

T

SS

TS

RS

6A

1A

4A

2A

5A

AGND

LINE "3" IN

AGND

AGND

AGND

S

3B

CT3

R

T

SS

TS

RS

6B

1B

4B

2B

5B

AGND

AGND

AGND

AGND

LINE3_LT_HI

LINE3_LT_LO

LINE3_RT_HI

LINE3_RT_LO

S

3A

CT5

R

T

SS

TS

RS

6A

1A

4A

2A

5A

AGND

AGND

AGND

AGND

LINE "5" IN

3B

S

R

CT5

SS

T

TS

6B

1B

4B

2B

RS

5B

AGND

AGND

AGND

AGND

LINE5_LT_HI

LINE5_LT_LO

LINE5_RT_HI

LINE5_RT_LO

3A

S

R

CT7

SS

T

TS

6A

1A

4A

2A

RS

5A

AGND

LINE "7" IN

AGND

AGND

AGND

S

3B

CT7

R

T

SS

TS

RS

6B

1B

4B

2B

5B

AGND

AGND

AGND

AGND

LINE7_LT_HI

LINE7_LT_LO

LINE7_RT_HI

LINE7_RT_LO

7

A

AIR 1/ Dec 2007

8 7

6

AGND

MIC "2" IN

CT2

2

HI

1 -50dBu BAL

3

LO

MIC2_IN_HI

MIC2_IN_LO

S

3A

CT4

R

T

SS

TS

RS

6A

1A

4A

2A

5A

AGND

LINE "4" IN

AGND

AGND

AGND

S

3B

CT4

R

T

SS

TS

RS

6B

1B

4B

2B

5B

AGND

AGND

AGND

AGND

LINE4_LT_HI

LINE4_LT_LO

LINE4_RT_HI

LINE4_RT_LO

S

3A

CT6

R

T

SS

TS

RS

6A

1A

4A

2A

5A

AGND

LINE "6" IN

AGND

AGND

AGND

3B

S

CT6

R

T

SS

TS

6B

1B

4B

2B

RS

5B

AGND

AGND

AGND

AGND

LINE6_LT_HI

LINE6_LT_LO

LINE6_RT_HI

LINE6_RT_LO

3A

S

CT8

R

T

SS

TS

6A

1A

4A

2A

RS

5A

AGND

AGND

AGND

AGND

LINE "8" IN

S

3B

CT8

R

T

SS

TS

RS

6B

1B

4B

2B

5B

AGND

AGND

AGND

AGND

LINE8_LT_HI

LINE8_LT_LO

LINE8_RT_HI

LINE8_RT_LO

6

5

5

4

4

3A

S

R

CT9

T

SS

TS

RS

6A

1A

4A

2A

5A

AGND

EXT IN

AGND

AGND

AGND

3B

S

R

CT9

T

SS

TS

RS

6B

1B

4B

2B

5B

AGND

AGND

AGND

AGND

EXT_LT_HI

EXT_LT_LO

EXT_RT_HI

EXT_RT_LO

3A

S

CT11

SS

T

TS

R

RS

6A

1A

4A

2A

5A

AGND

AGND

PGM 2 OUT

3B

S

CT11

SS

T

TS

R

RS

6B

1B

4B

2B

5B

AGND

AGND

PGM2_LT_HI

PGM2_LT_LO

PGM2_RT_HI

PGM2_RT_LO

3A

S

CUE OUT

CT13

6A

SS

1A

T

4A

TS

R

2A

5A

AGND

RS

AGND

AGND

AGND

3B

S

NOT USED

CT13

SS

6B

1B

AGND

T

4B

TS

R

2B

RS

5B

AGND

CUE_OUT

3

3

2 1

D

3A

S

CT10

SS

T

TS

R

RS

6A

1A

4A

2A

5A

AGND

PGM 1 OUT

AGND

3B

S

CT10

SS

T

TS

R

RS

6B

1B

4B

2B

5B

AGND

AGND

PGM1_LT_HI

PGM1_LT_LO

PGM1_RT_HI

PGM1_RT_LO

3A

S

CT12

SS

T

TS

R

RS

6A

1A

4A

2A

5A

AGND

AGND

AGND

AGND

MONITOR OUT

3B

S

CT12

SS

T

TS

R

RS

6B

1B

4B

2B

5B

AGND

AGND

AGND

AGND

MON_LT_OUT

MON_RT_OUT

3A

S

HDPN OUT

CT14

6A

AGND

SS

1A

T

4A

TS

R

2A

5A

RS

AGND

3B

S

TALLY OUT

CT14

SS

6B

1B

AGND

T

4B

TS

R

2B

RS

5B

AGND

HDPN_LT

HDPN_RT

TALLY_NO

TALLY_C

C

B

CONTRACT NO.

MBA1-1

- SA UR US - Sergey Averin -

APPROVALS

DRAWN

SA

CHECKED

DATE

10-20-07

SA

ISSUED

SA

W# 700928

2

600 Industrial Drive

New Bern, NC 28562

SIZE FSCM NO.

DWG. NO.

D

SCALE

MBA1-1 PCB

22S1001-1

SHEET

1

REV

_

1 OF 8

A

page 4 - 3

D

8 7

VCC

INPUT 1

SW15

2 1

3

PGM-1

4

VCC

2

SW25

1

3

PGM-2

4

R46 220

R51 220

PGM1SW_1

R86 220

GND

R65

1.00K

GND

C28

0.22uF

PGM2SW_1

R91 220

R98

1.00K

C61

0.22uF

GND GND

C

B

A

AIR 1/ Dec 2007

8

VCC

2

SW43

1

3 4

ON/OFF

R419 100

R432 220

R408

1.00K

GND GND

C327

0.22uF

ONSW_1

VCC

INPUT 6

SW20

2 1

3

PGM-1

4

VCC

2

SW30

1

3

PGM-2

4

VCC

2

SW38

1

3 4

CUE

R41 220

R34 220

PGM1SW_6

R58

1.00K

C34

0.22uF

R81 220

GND GND

PGM2SW_6

R74 220

R124 220

GND

R94

1.00K

GND

C50

0.22uF

CUESW_6

R118 220

R136

1.00K

C75

0.22uF

VCC

2

SW48

1

3 4

ON/OFF

R413 100

GND

R427 220

GND

R403

1.00K

GND GND

C321

0.22uF

ONSW_6

11

12

13

14

15

9

10

7

8

4

5

6

CT16

1

2

3

VCC

GND

7

6

VCC

INPUT 2

SW16

2 1

3

PGM-1

4

VCC

2

SW26

1

3

PGM-2

4

R45 220

R36 220

PGM1SW_2

R85 220

GND

R64

1.00K

GND

C36

0.22uF

PGM2SW_2

R76 220

R97

1.00K

C55

0.22uF

GND GND

VCC

2

SW44

1

3 4

ON/OFF

R418 100

R431 220

R407

1.00K

GND GND

C326

0.22uF

ONSW_2

VCC

INPUT 7

SW21

2 1

3

PGM-1

4

VCC

2

SW31

1

3

PGM-2

4

VCC

2

SW39

1

3 4

CUE

R40 220

R48 220

PGM1SW_7

R55

1.00K

C25

0.22uF

R80 220

GND GND

PGM2SW_7

R88 220

R123 220

GND

R93

1.00K

GND

C59

0.22uF

CUESW_7

R130 220

R135

1.00K

C68

0.22uF

VCC

2

SW49

1

3 4

ON/OFF

R412 100

GND

R426 220

GND

R402

1.00K

GND GND

C320

0.22uF

ONSW_7

3

4

5

6

CT17

1

2

7

8

9

10

11

12

13

14

15

GND

VCC

TALLY_LED

6

5

VCC

INPUT 3

SW17

2 1

3

PGM-1

4

VCC

2

SW27

1

3

PGM-2

4

VCC

2

SW35

1

3 4

CUE

VCC

2

SW45

1

3 4

ON/OFF

R44 220

R50 220

PGM1SW_3

R84 220

GND

R63

1.00K

GND

C27

0.22uF

PGM2SW_3

R90 220

R99

1.00K

C58

0.22uF

R127 220

GND GND

CUESW_3

R133 220

R416 100

GND

R138

1.00K

GND

C72

0.22uF

ONSW_3

R430 220

R406

1.00K

C325

0.22uF

GND GND

VCC

INPUT 8

SW22

2 1

3

PGM-1

4

VCC

2

SW32

1

3

PGM-2

4

VCC

2

SW40

1

3 4

CUE

R39 220

R33 220

PGM1SW_8

R54

1.00K

C33

0.22uF

R79 220

GND GND

PGM2SW_8

R73 220

R122 220

GND

R92

1.00K

GND

C47

0.22uF

CUESW_8

R117 220

R134

1.00K

C74

0.22uF

VCC

2

SW50

1

3 4

ON/OFF

R411 100

GND

R425 220

GND

R401

1.00K

GND GND

C319

0.22uF

ONSW_8

4 3

VCC

INPUT 4

SW18

2 1

3

PGM-1

4

VCC

2

SW28

1

3

PGM-2

4

VCC

2

SW36

1

3 4

CUE

VCC

2

SW46

1

3 4

ON/OFF

R43 220

R35 220

PGM1SW_4

R83 220

GND

R62

1.00K

GND

C35

0.22uF

PGM2SW_4

R75 220

R96

1.00K

C53

0.22uF

R126 220

GND GND

CUESW_4

R119 220

R415 100

GND

R132

1.00K

GND

C85

0.22uF

ONSW_4

R429 220

R405

1.00K

C324

0.22uF

GND GND

VCC

GND

METERS

SW23

2 1

VCC

3

PGM-1

4

R47 220

2

SW33

1

R38

10.0K

VCC

R78

10.0K

GND

R87 220

VCC

GND

VCC

3

PGM-2

4

2

SW41

1

3 4

EXT

R129 220

VCC

R121

10.0K

2

VCC

INPUT 5

SW19

2 1

3

PGM-1

4

VCC

2

SW29

1

3

PGM-2

4

VCC

2

SW37

1

3 4

CUE

VCC

2

SW47

1

3 4

ON/OFF

R42 220

R49 220

PGM1SW_5

R82 220

GND

R59

1.00K

GND

C26

0.22uF

PGM2SW_5

R89 220

R95

1.00K

C60

0.22uF

R125 220

GND GND

CUESW_5

R131 220

R414 100

GND

R137

1.00K

GND

C70

0.22uF

ONSW_5

R428 220

R404

1.00K

C322

0.22uF

GND GND

VCC

GND

MON/HDPN

SW24

2 1

VCC

3

PGM-1

4

R32 220

VCC

R37

10.0K

SW34

R77

10.0K

2 1

GND

R72 220

VCC

3

PGM-2

4

VCC

SW42

R120

10.0K

2 1

GND

3 4

R128 220

VCC

EXT

1

CT15

1

2

3

4

5

PWR

GND

AGND

D+in

V-in

V+in

GND

GP2 GP1

AGND

VCC

V+

V-

F1

POLYSW

1.0A

F2

POLYSW

1.0A

F3

POLYSW

1.0A

D+in

V+in

V-in

5 4

D

C

B

V+in

C2

0.1uF

AGND

V-in

C3

0.1uF

AGND

D+in

GND

C1

0.1uF

3

CONTRACT NO.

MBA1-1

- SA UR US - Sergey Averin -

APPROVALS

DRAWN

SA

CHECKED

DATE

10-20-07

SA

ISSUED

SA

W# 700928

2

600 Industrial Drive

New Bern, NC 28562

SIZE FSCM NO.

DWG. NO.

D

SCALE

MBA1-1 PCB

22S1001-2

SHEET

1

REV

_

2 OF 8

A

page 4 - 4

D

C

8

PGM1SW_1

VCC

2

1

4

3

U8

___

PR

Q

CK

D

CLR

__

Q

5

6

74LS74

PGM1_1

PGM1SW_2

PGM2SW_1

PGM2SW_2

10

11

U8

___

PR

CK

Q

12

13

CLR

__

Q

9

8

74LS74

PGM1_2

2

1

4

3

U21

___

PR

Q

CK

__

Q

CLR

5

6

74LS74

PGM2_1

10

11

12

13

U21

___

PR

Q

CK

D

CLR

__

Q

9

8

74LS74

PGM2_2

B

D20

BAT54

VCC VCC

R417

10.0K

C323

100uF

GND

ONSW_1

ONSW_2

4

3

2

1

U79

___

PR

Q

CK

D

CLR

__

Q

5

6

74LS74

ON_1

10

11

12

13

U79

___

PR

Q

CK

__

Q

CLR

9

8

74LS74

ON_2

7

PGM1SW_3

VCC

4

3

2

1

U7

___

PR

CK

D

CLR

Q

__

Q

5

6

74LS74

PGM1_3

PGM1SW_4

PGM2SW_3

PGM2SW_4

10

11

U7

___

PR

CK

12

13

CLR

Q

__

Q

9

8

74LS74

PGM1_4

4

3

2

1

U20

___

PR

Q

CK

__

Q

CLR

5

6

74LS74

PGM2_3

10

11

12

13

U20

___

PR

Q

CK

D

CLR

__

Q

9

8

74LS74

PGM2_4

CUESW_3

CUESW_4

ONSW_3

ONSW_4

4

3

2

1

U29

___

PR

Q

CK

__

Q

CLR

5

6

74LS74

10

11

12

13

U29

___

PR

Q

CK

__

Q

CLR

9

8

74LS74

2

1

4

3

U78

___

PR

Q

CK

D

CLR

__

Q

5

6

74LS74

ON_3

10

11

12

13

U78

___

PR

Q

CK

__

Q

CLR

9

8

74LS74

ON_4

6

PGM1SW_5

VCC

2

1

4

3

U6

___

PR

Q

CK

D

CLR

__

Q

5

6

74LS74

PGM1_5

PGM1SW_6

PGM2SW_5

PGM2SW_6

10

11

U6

___

PR

CK

Q

12

13

CLR

__

Q

9

8

74LS74

PGM1_6

2

1

4

3

U19

___

PR

Q

CK

__

Q

CLR

5

6

74LS74

PGM2_5

10

11

12

13

U19

___

PR

Q

CK

D

CLR

__

Q

9

8

74LS74

PGM2_6

CUESW_5

CUESW_6

ONSW_5

ONSW_6

4

3

2

1

U28

___

PR

Q

CK

__

Q

CLR

5

6

74LS74

10

11

12

13

U28

___

PR

Q

CK

__

Q

CLR

9

8

74LS74

4

3

2

1

U77

___

PR

Q

CK

D

CLR

__

Q

5

6

74LS74

ON_5

10

11

12

13

U77

___

PR

Q

CK

__

Q

CLR

9

8

74LS74

ON_6

5

PGM1SW_7

VCC

4

3

2

1

U5

___

PR

CK

D

CLR

Q

__

Q

5

6

74LS74

PGM1_7

PGM1SW_8

PGM2SW_7

PGM2SW_8

10

11

U5

___

PR

CK

12

13

CLR

Q

__

Q

9

8

74LS74

PGM1_8

4

3

2

1

U18

___

PR

Q

CK

__

Q

CLR

5

6

74LS74

PGM2_7

10

11

12

13

U18

___

PR

Q

CK

D

CLR

__

Q

9

8

74LS74

PGM2_8

CUESW_7

CUESW_8

ONSW_7

ONSW_8

2

1

4

3

U27

___

PR

Q

CK

__

Q

CLR

5

6

74LS74

10

11

12

13

U27

___

PR

Q

CK

__

Q

CLR

9

8

74LS74

4

3

2

1

U76

___

PR

Q

CK

D

CLR

__

Q

5

6

74LS74

ON_7

10

11

12

13

U76

___

PR

Q

CK

__

Q

CLR

9

8

74LS74

ON_8

4

4

5

U9

6

1

2

74ACT08

U17

3

74ACT08

GND

2

1

4

3

U4

___

PR

Q

CK

D

CLR

__

Q

5

6

74LS74

9

10

U9

8

12

74ACT08

11

13

U17

74ACT08

GND

10

11

U4

___

PR

CK

Q

12

13

CLR

__

Q

9

8

74LS74

4

5

U17

6

74ACT08

GND

4

3

2

1

U16

___

PR

Q

CK

D

CLR

__

Q

5

6

74LS74

9

10

U17

8

74ACT08

GND

10

11

12

13

U16

___

PR

Q

CK

__

Q

CLR

9

8

74LS74

1

2

U9

3

74ACT08 GND

4

3

2

1

U26

___

PR

Q

CK

D

CLR

__

Q

5

6

74LS74

12

13

U9

11

74ACT08

GND

10

11

12

13

U26

___

PR

Q

CK

__

Q

CLR

9

8

74LS74

3

PGM1_1

ON_1

PGM2_1

PGM1_2

ON_2

PGM2_2

PGM1_3

ON_3

PGM2_3

PGM1_4

ON_4

PGM2_4

PGM1_5

ON_5

PGM2_5

PGM1_6

ON_6

PGM2_6

PGM1_7

ON_7

PGM2_7

PGM1_8

ON_8

PGM2_8

1

2

U15

74LS00

3

4

5

U15

74LS00

6

9

10

U15

74LS00

8

12

13

U15

74LS00

11

1

2

U14

74LS00

3

4

5

U14

74LS00

6

9

10

U14

74LS00

8

12

13

U14

74LS00

11

1

2

U12

74LS00

3

4

5

U12

74LS00

6

9

10

U12

74LS00

8

12

13

U12

74LS00

11

1

2

U10

74LS00

3

4

5

U10

74LS00

6

9

10

U10

74LS00

8

12

13

U10

74LS00

11

2

ONAIR_TALLY

D1

1N4002

GND

VCC

R142

10.0K

1

BAT54 D17

BAT54 D16

BAT54 D15

BAT54 D14

BAT54 D13

BAT54 D12

VCC

1

3

4

6

SW1

2

5

CUE TO

MONITOR

R143

10.0K

D

BAT54 D19

4

6

1

SW10

2

3

5

MIC1

MUTE

BAT54 D18

4

6

1

3

SW9

2

5

MIC2

MUTE

C

VCC VCC

R3

4.99K

R4 100

Q1

FDN340P

ONAIR_TALLY

R1

2.43K

GND

R2 2.00K

TALLY_LED

B

TALLY_NO

ON AIR

TALLY

RELAY

TALLY_C

A

VCC

GND

C41

0.1uF

VCC

GND

C80

0.1uF

VCC

GND

C66

0.1uF

VCC

GND

C57

0.1uF

VCC

GND

C31

0.1uF

VCC

GND

C67

0.1uF

VCC

GND

C69

0.1uF

VCC

GND

C88

0.1uF

VCC

GND

C71

0.1uF

VCC

GND

C89

0.1uF

VCC

GND

C73

0.1uF

VCC

GND

C90

0.1uF

VCC

GND

C40

0.1uF

VCC

GND

C51

0.1uF

VCC

GND

C48

0.1uF

VCC

GND

C56

0.1uF

VCC

GND

C39

0.1uF

VCC

GND

C332

0.1uF

VCC

GND

C37

0.1uF

VCC

GND

C333

0.1uF

VCC

GND

C38

0.1uF

VCC

GND

C334

0.1uF

VCC

GND

C54

0.1uF

VCC

GND

C8

0.1uF

VCC

GND

C335

0.1uF

8 7 6 5 4 3

CONTRACT NO.

MBA1-1

- SA UR US - Sergey Averin -

APPROVALS

DRAWN

SA

CHECKED

DATE

10-20-07

SA

ISSUED

SA

W# 700928

2

600 Industrial Drive

New Bern, NC 28562

SIZE FSCM NO.

DWG. NO.

D

SCALE

MBA1-1 PCB

22S1001-3

SHEET

1

REV

_

3 OF 8

A

AIR 1/ Dec 2007

page 4 - 5

8 7 6 5 4 3 2 1

D

C

B

HI

SH

HI

SH

HI

SH

HI

SH

MIC1_IN_HI

-50dBu BAL

MIC1_IN_LO

AGND

L3

L4

C11 10uF

C12 10uF

C7

0.001uF

C6

0.001uF

Z6

C5V1

5.1V

AGND AGND

5.1V

C5V1

Z8

AGND AGND

Z4

C5V1

5.1V

R10

10.0K

AGND AGND

C14

330pF

R9

10.0K

2

5

3

AGND

7

SSM2017

U2

4

8

1

R8

10

5.1V

C5V1

Z2

-2dBu

6

22uF C87

MIC 1

GAIN

TRIM

10K

CR4

3

1

2

AGND

CH 1

C309 22uF

-14dBu

2

3

5532

U63

AGND

1

-2dBu

100uF C274

R338 10.0K

R339 10.0K

R337 10.0K

R297 10.0K

14

6

11

X-Y

INH

S

U62

4053

X

Y

13

12

4

6

9

X-Y

INH

S

U62

4053

X

Y

3

5

AGND

4

6

9

X-Y

INH

S

U50

4053

15

6

10

X-Y

INH

S

U50

4053

X

Y

X

Y

3

5

1

2

PGM1LTACN

PGM2LTACN

15

6

10

X-Y

INH

S

U62

4053

X

Y

1

2

PGM1RTACN

GND

14

6

11

X-Y

INH

S

U50

4053

X

Y

13

12

PGM2RTACN

AGND

R335 10.0K

R336 10.0K

R334 10.0K

R296 10.0K

14

6

11

X-Y

INH

S

U61

4053

X

Y

13

12

4

6

9

X-Y

INH

S

U61

4053

X

Y

3

5

AGND

4

6

9

X-Y

INH

S

U49

4053

X

Y

15

6

10

X-Y

INH

S

U49

4053

X

Y

3

5

1

2

PGM1LTACN

PGM2LTACN

15

6

10

X-Y

INH

S

U61

4053

X

Y

1

2

PGM1RTACN

GND

14

6

11

X-Y

INH

S

U49

4053

X

Y

13

12

PGM2RTACN

AGND

MIC2_IN_HI

-50dBu BAL

MIC2_IN_LO

AGND

L1

L2

C9 10uF

C10 10uF

C5

0.001uF

C4

0.001uF

Z5

C5V1

5.1V

AGND AGND

5.1V

C5V1

Z7

AGND AGND

Z3

C5V1

5.1V

R7

10.0K

AGND AGND

C13

330pF

R6

10.0K

2

5

3

AGND

7

SSM2017

U1

4

8

1

R5

10

5.1V

C5V1

Z1

-2dBu

6

22uF C86

MIC 2

GAIN

TRIM

10K

CR5

3

1

2

AGND

CH 2

C308 22uF

-14dBu

8 V+

6

5

5532

U63

4 V-

AGND

-2dBu

7

100uF C273

R186 6.19K

5

SW8

4

6

C162 33pF

LINE3_LT_HI

+4dBu BAL

LINE3_LT_LO

AGND

R187 20.0K

2

R219 20.0K

3

5532

U40

C188

0.001uF

AGND

C163

0.001uF

AGND

C140

33pF

R237 6.19K

AGND

R185 6.19K

1

R218

3.92K

LINE

3 LT

GAIN

R251

3.32K

AGND

-14dBu

CR6

10K

A1 A2

A3

R389

C289 22uF

22.1K

22uF C112

-2dBu

R265

3.92K

R388 88.7K

C307 10pF

2

3

5532

U72

AGND

2

SW8

1

3

AGND

CH 3

1

100uF C254

R332 10.0K

-2dBu

R333 10.0K

R295 20.0K

R293 20.0K

C161 33pF

LINE3_RT_HI

+4dBu BAL

LINE3_RT_LO

C187

0.001uF

C170

0.001uF

8

V+

R164 20.0K

6

R216 20.0K

5

5532

U40

4

V-

AGND

R236 6.19K

AGND AGND

C125

33pF

7

R217

3.92K

LINE

3 RT

GAIN

R250

3.32K

-2dBu

R365 88.7K

C271 10pF

22uF C111

R264

3.92K

10K

CR6

B3 B2

C288 22uF

B1

R364 22.1K

6

5

AGND

-14dBu

AGND

8

5532

U72

4

V+

V-

-2dBu

R331 10.0K

7

100uF C253

R294 10.0K

AGND AGND

14

6

11

X-Y

INH

S

U60

4053

X

Y

13

12

4

6

9

X-Y

INH

S

U60

4053

X

Y

3

5

4

6

9

X-Y

INH

S

U48

4053

15

6

10

X-Y

INH

S

U48

4053

X

Y

X

Y

3

5

1

2

PGM1LTACN

PGM2LTACN

CUEACN

15

6

10

X-Y

INH

S

U60

4053

X

Y

1

2

PGM1RTACN

GND

14

6

11

X-Y

INH

S

U48

4053

X

Y

13

12

PGM2RTACN

AGND

HI

SH

HI

SH

R183 6.19K

5

SW7

4

6

C159 33pF

LINE4_LT_HI

+4dBu BAL

LINE4_LT_LO

AGND

R184 20.0K

2

R215 20.0K

3

5532

U39

C186

0.001uF

AGND

C160

0.001uF

AGND

C138

33pF

R235 6.19K

AGND

R182 6.19K

1

R214

3.92K

LINE

4 LT

GAIN

R249

3.32K

AGND

-14dBu

CR7

10K

A1 A2

A3

R387

C287 22uF

22.1K

22uF C110

-2dBu

2

R263

3.92K

3

AGND

2

SW7

1

3

AGND

CH 4

R386 88.7K

C305 10pF

5532

U71

1

100uF C252

R329 10.0K

-2dBu

R330 10.0K

R292 20.0K

R290 20.0K

C158 33pF

LINE4_RT_HI

+4dBu BAL

LINE4_RT_LO

C185

0.001uF

AGND

AGND

C169

0.001uF

8

V+

R163 20.0K

6

R212 20.0K

5

5532

U39

AGND

C123

33pF

4

V-

R234 6.19K

7

R213

3.92K

LINE

4 RT

GAIN

R248

3.32K

-2dBu

R363 88.7K

C269 10pF

22uF C109

R262

3.92K

10K

CR7

B3 B2

C286 22uF

B1

R362 22.1K

6

5

AGND

-14dBu

AGND

8

5532

U71

4

V+

V-

-2dBu

R328 10.0K

7

100uF C251

R291 10.0K

AGND AGND

14

6

11

X-Y

INH

S

U59

4053

X

Y

13

12

4

6

9

X-Y

INH

S

U59

4053

X

Y

3

5

4

6

9

X-Y

INH

S

U47

4053

X

Y

15

6

10

X-Y

INH

S

U47

4053

X

Y

3

5

1

2

PGM1LTACN

PGM2LTACN

CUEACN

15

6

10

X-Y

INH

S

U59

4053

X

Y

1

2

PGM1RTACN

GND

14

6

11

X-Y

INH

S

U47

4053

X

Y

13

12

PGM2RTACN

AGND

D

C

B

A

AIR 1/ Dec 2007

NOTE: PHASE SYMBOLS DENOTE SIGNAL POLARITY

IN PHASE OUT OF PHASE

8 7 6 5 4 3

CONTRACT NO.

MBA1-1

- SA UR US - Sergey Averin -

APPROVALS

DRAWN

SA

CHECKED

DATE

10-20-07

SA

ISSUED

SA

W# 700928

2

600 Industrial Drive

New Bern, NC 28562

SIZE FSCM NO.

DWG. NO.

D

SCALE

MBA1-1 PCB

22S1001-4

SHEET

1

REV

_

4 OF 8

A

page 4 - 6

D

HI

SH

C

HI

SH

8

R180 6.19K

7

5

SW6

4

6

6

C156 33pF

LINE5_LT_HI

+4dBu BAL

LINE5_LT_LO

AGND

R181 20.0K

2

R211 20.0K

3

5532

U38

C184

0.001uF

AGND

C157

0.001uF

AGND

C136

33pF

R233 6.19K

AGND

R179 6.19K

1

R210

3.92K

LINE

5 LT

GAIN

R247

3.32K

AGND

-14dBu

CR8

10K

A1

A3

A2

R385

C285 22uF

22.1K

22uF C108

-2dBu

R261

3.92K

R384 88.7K

C303 10pF

2

3

5532

U70

AGND

2

SW6

1

3

AGND

CH 5

1

100uF C250

R326 10.0K

-2dBu

R327 10.0K

R289 20.0K

R287 20.0K

C155 33pF

LINE5_RT_HI

+4dBu BAL

LINE5_RT_LO

C183

0.001uF

C168

0.001uF

8

V+

R162 20.0K

6

R208 20.0K

5

5532

U38

4

V-

AGND

R232 6.19K

AGND AGND

C121

33pF

7

R209

3.92K

LINE

5 RT

GAIN

R246

3.32K

-2dBu

R361 88.7K

C267 10pF

22uF C107

R260

3.92K

10K

CR8

B3

B2

C284 22uF

B1

R360 22.1K

6

5

AGND

-14dBu

AGND

8

5532

U70

4

V+

V-

-2dBu

R325 10.0K

7

100uF C249

R288 10.0K

AGND AGND

5

14

6

11

X-Y

INH

S

U58

4053

X

Y

13

12

4

6

9

X-Y

INH

S

U58

4053

X

Y

3

5

PGM1LTACN

PGM2LTACN

4

6

9

X-Y

INH

S

U46

4053

15

6

10

X-Y

INH

S

U46

4053

X

Y

X

Y

3

5

1

2

15

6

10

X-Y

INH

S

U58

4053

X

Y

1

2

CUEACN

PGM1RTACN

GND

14

6

11

X-Y

INH

S

U46

4053

X

Y

13

12

PGM2RTACN

AGND

B

HI

SH

HI

SH

R174 6.19K

5

SW4

4

6

C150 33pF

LINE7_LT_HI

+4dBu BAL

LINE7_LT_LO

AGND

R175 20.0K

2

R203 20.0K

3

5532

U36

C180

0.001uF

AGND

C151

0.001uF

AGND

C132

33pF

R229 6.19K

AGND

R173 6.19K

1

R202

3.92K

LINE

7 LT

GAIN

R243

3.32K

AGND

-14dBu

CR10

10K

A1

A3

A2

R381

C281 22uF

22.1K

22uF C104

-2dBu

R257

3.92K

R380 88.7K

C299 10pF

2

3

5532

U68

AGND

2

SW4

1

3

AGND

CH 7

1

100uF C246

R320 10.0K

-2dBu

R321 10.0K

R283 20.0K

R281 20.0K

C149 33pF

LINE7_RT_HI

+4dBu BAL

LINE7_RT_LO

C179

0.001uF

C166

0.001uF

8

V+

R160 20.0K

6

R200 20.0K

5

5532

U36

4

V-

AGND

R228 6.19K

AGND AGND

C117

33pF

7

R201

3.92K

LINE

7 RT

GAIN

R242

3.32K

-2dBu

R357 88.7K

C263 10pF

22uF C103

R256

3.92K

10K

CR10

B3

B2

C280 22uF

B1

R356 22.1K

6

5

AGND

-14dBu

AGND

8

5532

U68

4

V+

V-

-2dBu

R319 10.0K

7

100uF C245

R282 10.0K

AGND AGND

14

6

11

X-Y

INH

S

U56

4053

X

Y

13

12

4

6

9

X-Y

INH

S

U56

4053

X

Y

3

5

4

6

9

X-Y

INH

S

U44

4053

15

6

10

X-Y

INH

S

U44

4053

X

Y

X

Y

3

5

1

2

PGM1LTACN

PGM2LTACN

CUEACN

15

6

10

X-Y

INH

S

U56

4053

X

Y

1

2

PGM1RTACN

GND

14

6

11

X-Y

INH

S

U44

4053

X

Y

13

12

PGM2RTACN

AGND

A

AIR 1/ Dec 2007

NOTE: PHASE SYMBOLS DENOTE SIGNAL POLARITY

IN PHASE OUT OF PHASE

8 7 6 5

HI

SH

HI

SH

4

R177 6.19K

3

5

SW5

4

6

2

C153 33pF

LINE6_LT_HI

+4dBu BAL

LINE6_LT_LO

AGND

R178 20.0K

2

R207 20.0K

3

5532

U37

C182

0.001uF

AGND

C154

0.001uF

AGND

C134

33pF

R231 6.19K

AGND

R176 6.19K

1

R206

3.92K

LINE

6 LT

GAIN

R245

3.32K

AGND

-14dBu

CR9

10K

A1

A2

A3

R383

C283 22uF

22.1K

22uF C106

-2dBu

2

R259

3.92K

3

AGND

2

SW5

1

3

AGND

CH 6

R382 88.7K

C301 10pF

5532

U69

1

100uF C248

R323 10.0K

-2dBu

R324 10.0K

R286 20.0K

R284 20.0K

C152 33pF

LINE6_RT_HI

+4dBu BAL

LINE6_RT_LO

C181

0.001uF

AGND

AGND

C167

0.001uF

8

V+

R161 20.0K

6

R204 20.0K

5

5532

U37

AGND

C119

33pF

4

V-

R230 6.19K

7

R205

3.92K

LINE

6 RT

GAIN

R244

3.32K

-2dBu

R359 88.7K

C265 10pF

22uF C105

R258

3.92K

10K

CR9

B3

B2

C282 22uF

B1

R358 22.1K

6

5

AGND

-14dBu

AGND

8

5532

U69

4

V+

V-

-2dBu

R322 10.0K

7

100uF C247

R285 10.0K

AGND AGND

1

14

6

11

X-Y

INH

S

U57

4053

X

Y

13

12

4

6

9

X-Y

INH

S

U57

4053

X

Y

3

5

4

6

9

X-Y

INH

S

U45

4053

X

Y

15

6

10

X-Y

INH

S

U45

4053

X

Y

3

5

1

2

15

6

10

X-Y

INH

S

U57

4053

X

Y

1

2

PGM1LTACN

PGM2LTACN

CUEACN

PGM1RTACN

GND

14

6

11

X-Y

INH

S

U45

4053

X

Y

13

12

PGM2RTACN

AGND

HI

SH

HI

SH

R171 6.19K

5

SW3

4

6

C147 33pF

LINE8_LT_HI

+4dBu BAL

LINE8_LT_LO

AGND

R172 20.0K

2

R199 20.0K

3

5532

U35

C178

0.001uF

AGND

C148

0.001uF

AGND

C130

33pF

R227 6.19K

AGND

R170 6.19K

1

R198

3.92K

LINE

8 LT

GAIN

R241

3.32K

AGND

-14dBu

CR11

10K

A1 A2

A3

R379

C279 22uF

22.1K

22uF C102

-2dBu

2

R255

3.92K

3

AGND

2

SW3

1

3

AGND

CH 8

R378 88.7K

C297 10pF

5532

U67

1

100uF C244

R317 10.0K

-2dBu

R318 10.0K

R280 20.0K

R278 20.0K

C146 33pF

LINE8_RT_HI

+4dBu BAL

LINE8_RT_LO

C177

0.001uF

AGND

AGND

C165

0.001uF

8

V+

R159 20.0K

6

R196 20.0K

5

5532

U35

AGND

C115

33pF

4

V-

R226 6.19K

7

R197

3.92K

LINE

8 RT

GAIN

R240

3.32K

-2dBu

R355 88.7K

C261 10pF

22uF C101

R254

3.92K

10K

CR11

B3 B2

C278 22uF

B1

R354 22.1K

6

5

AGND

-14dBu

AGND

8

5532

U67

4

V+

V-

-2dBu

R316 10.0K

7

100uF C243

R279 10.0K

AGND AGND

14

6

11

X-Y

INH

S

U55

4053

X

Y

13

12

4

6

9

X-Y

INH

S

U55

4053

X

Y

3

5

4

6

9

X-Y

INH

S

U43

4053

X

Y

15

6

10

X-Y

INH

S

U43

4053

X

Y

3

5

1

2

PGM1LTACN

PGM2LTACN

CUEACN

15

6

10

X-Y

INH

S

U55

4053

X

Y

1

2

PGM1RTACN

GND

14

6

11

X-Y

INH

S

U43

4053

X

Y

13

12

PGM2RTACN

AGND

D

C

B

4 3

CONTRACT NO.

MBA1-1

- SA UR US - Sergey Averin -

APPROVALS

DRAWN

SA

CHECKED

DATE

10-20-07

SA

ISSUED

SA

W# 700928

2

600 Industrial Drive

New Bern, NC 28562

SIZE FSCM NO.

DWG. NO.

D

SCALE

MBA1-1 PCB

22S1001-5

SHEET

1

REV

_

5 OF 8

A

page 4 - 7

D

C

B

A

AIR 1/ Dec 2007

8

8 7 6 5 4 3 2 1

VDD

Z10

C5V1

5.1V

VEE

Z9

C5V1

5.1V

V+

C98

0.22uF

C97

0.22uF

C211

0.22uF

C200

0.22uF

C241

0.22uF

C230

0.22uF

C210

0.22uF

C199

0.22uF

C240

0.22uF

C229

0.22uF

C209

0.22uF

C198

0.22uF

C239

0.22uF

C228

0.22uF

C208

0.22uF

C197

0.22uF

C238

0.22uF

C227

0.22uF

C207

0.22uF

C196

0.22uF

C237

0.22uF

C226

0.22uF

C206

0.22uF

C195

0.22uF

C236

0.22uF

C225

0.22uF

C242

0.22uF

C231

0.22uF

C212

0.22uF

C201

0.22uF

C311

0.22uF

C310

0.22uF

C94

C93

0.22uF

0.22uF

C96

C95

0.22uF

0.22uF

C91

22uF

C92

22uF

1.30K

1.30K

R157

R156

C63

C76

0.1uF

0.1uF

C330

0.1uF

C315

0.1uF

C16

C15

330uF

330uF

V+

AGND

V-

C306

0.1uF

C272

0.1uF

C139

0.1uF

C126

0.1uF

C304

0.1uF

C270

0.1uF

C137

0.1uF

C124

0.1uF

C302

0.1uF

C268

0.1uF

C135

0.1uF

C122

0.1uF

C300

0.1uF

C266

0.1uF

C120

0.1uF

C133

0.1uF

C298

0.1uF

C264

0.1uF

C131

0.1uF

C118

0.1uF

C262

0.1uF

C296

0.1uF

C129

0.1uF

C116

0.1uF

C127

0.1uF

C114

0.1uF

C294

0.1uF

C260

0.1uF

C258

0.1uF

C292

0.1uF

C217

0.1uF

C203

0.1uF

C205

0.1uF

C215

0.1uF

C189

0.1uF

C172

0.1uF

C191

0.1uF

C174

0.1uF

C232

0.1uF

C220

0.1uF

C222

0.1uF

C234

0.1uF

C313

0.1uF

C328

0.1uF

C23

0.1uF

C29

0.1uF

C65

0.1uF

C78

0.1uF

C83

0.1uF

C82

0.1uF

C81

0.1uF

C84

0.1uF

C21

0.1uF

C20

0.1uF

C19

0.1uF

C18

0.1uF

C290

0.1uF

C256

0.1uF

AGND

V-

D

C

SWTLTVU

R116 10.0K

4148 D8

8

V+

R106 10.0K

2

3

TL072

U23

4

V-

AGND

R105 20.0K

R115 20.0K

4148 D11

1

4148 D9

R107 10.0K

6

5

TL072

U23

AGND

D7 4148

7

VCC

C52

1uF

GND

D6 4148

R104 1.00K

R114

100K

C44

1uF

AGND AGND

R69 562

R71

562

R60 1.69K

R61

3.32K

AGND

VCC

7

8

5

6

9

3

4

1

2

U13

LED1 LED2

18

VLED3

17

16

V+ LED4

15

RLO LED5

14

SIG LED6

MODE

13

RHI

REFOUT

LED7

LED8

REFADJ LED9

12

11

LED10

10

LM3915

AGND GND AGND

R31 332

R30 332

R29 332

R28 332

R27 332

R26 332

R25 619

R24 619

R23 619

R22 619

-6dB

-3dB

0dB

+3dB

+6dB

-21dB

-18dB

-15dB

-12dB

-9dB

SWTRTVU

R113 10.0K

4148 D4

8

V+

R102 10.0K

2

3

TL072

U22

4

V-

AGND

R101 20.0K

R112 20.0K

4148 D10

1

4148 D5

R103 10.0K

6

5

TL072

U22

AGND

D3 4148

7

VCC

GND

C49

1uF

VCC

GND

C32

1500uF

D2 4148

R100 1.00K

R111

100K

C43

1uF

AGND AGND

R68 562

R70

562

R56 1.69K

R57

3.32K

AGND

VCC

1

2

3

4

5

6

7

8

9

U11

LED1 LED2

18

V-

V+

LED3

LED4

17

16

RLO

SIG

LED5

LED6

15

14

RHI

REFOUT

LED7

LED8

REFADJ

MODE

LED9

LED10

13

12

11

10

LM3915

AGND GND AGND

R20 332

R19 332

R18 332

R17 332

R16 332

R15 332

R14 619

R13 619

R12 619

R11 619

7 6 5 4

-6dB

-3dB

0dB

+3dB

+6dB

-21dB

-18dB

-15dB

-12dB

-9dB

3

PGM1LTMON

R149 10.0K

PGM2LTMON R147 10.0K

EXTLTMON R148 10.0K

PGM1RTMON R146 10.0K

PGM2RTMON R144 10.0K

EXTRTMON R145 10.0K

R108 10.0K

C62 33pF

GND

4

6

9

X-Y

INH

S

U31

4053

15

X-Y

6

10

INH

S

U31

4053

14

X-Y

6

11

INH

S

U31

4053

4

6

9

X-Y

INH

S

U30

4053

15

X-Y

6

10

INH

S

U30

4053

14

X-Y

6

11

INH

S

U30

4053

X

Y

X

Y

X

Y

X

Y

X

Y

13

12

X

Y

13

12

1

2

3

5

3

5

1

2

AGND

AGND

6

5

2

3

AGND

8 V+

5532

U24

4 V-

R139 10.0K

C77 33pF

5532

U24

7

R109 100

1

R140 100

SWTLTVU

SWTRTVU

B

NOTE: PHASE SYMBOLS DENOTE SIGNAL POLARITY

IN PHASE OUT OF PHASE

CONTRACT NO.

MBA1-1

- SA UR US - Sergey Averin -

APPROVALS

DRAWN

SA

CHECKED

DATE

10-20-07

SA

ISSUED

SA

W# 700928

2

600 Industrial Drive

New Bern, NC 28562

SIZE FSCM NO.

DWG. NO.

D

SCALE

MBA1-1 PCB

22S1001-6

SHEET

1

REV

_

6 OF 8

A

page 4 - 8

D

C

B

8 7 6 5

PGM1LTACN

PGM1RTACN

R306 10.0K

C216 33pF

8

V+

2

3

5532

U51

4

V-

AGND

-2dBu

1

22uF C223

R311 10.0K

R274 10.0K

C202 33pF -2dBu

R315 10.0K

R313 10.0K

5

SW12

4

6

2

1

3

PGM1

MONO

6

5

5532

U51

7

22uF C193

R309 10.0K

AGND

22uF C214

8

V+

2

3

5532

U54

AGND

R310 4.99K

C235 33pF

-2dBu

R304 4.99K

C221 33pF

1

R314 10 R300 4.99K

6

5

5532

U54

R277 47

7

-2dBu

R305 10 R301 47

4

V-

AGND

22uF C213

8

V+

2

3

5532

U53

AGND

R308 4.99K

C233 33pF

-2dBu

R302 4.99K

C219 33pF

1

R312 10 R298 4.99K

6

5

5532

U53

R276 47

7

-2dBu

R303 10 R299 47

4

V-

AGND

-2dBu

PGM1LTMON

PGM1_LT_HI

PGM1_LT_LO

-2dBu

PGM1RTMON

PGM1_RT_HI

PGM1_RT_LO

PGM2LTACN

PGM2RTACN

R307 10.0K

C218 33pF

8 V+

2

3

5532

U52

4 V-

AGND

-2dBu

1

22uF C224

R269 10.0K

R275 10.0K

C204 33pF

-2dBu

R273 10.0K

R271 10.0K

5

SW11

4

6

2

1

3

PGM2

MONO

6

5

5532

U52

7

22uF C194

R267 10.0K

AGND

22uF C142

8

V+

2

3

5532

U42

AGND

R268 4.99K

C192 33pF

-2dBu

R222 4.99K

C173 33pF

1

R272 10 R190 4.99K

6

5

5532

U42

R166 47

7

-2dBu

R223 10 R191 47

4 V-

AGND

22uF C141

8

V+

2

3

5532

U41

AGND

R266 4.99K

C190 33pF

-2dBu

R220 4.99K

C171 33pF

1

R270 10 R188 4.99K

6

5

5532

U41

R165 47

7

-2dBu

R221 10 R189 47

4 V-

AGND

-2dBu

PGM2LTMON

PGM2_LT_HI

PGM2_LT_LO

-2dBu

PGM2RTMON

PGM2_RT_HI

PGM2_RT_LO

A

AIR-1/Oct 2007

CUEACN

6

5

5532

U3

AGND

R21 10.0K

C22 33pF

-2dBu

7

22uF C17

R53 88.7K

C30 10pF

-14dBu

10K

CR3

3

2

1

C42 22uF

R52 22.1K

2

3

AGND

CUE

AGND

8

V+

5532

U3

4

V-

-2dBu

1

R67 10

NOTE: PHASE SYMBOLS DENOTE SIGNAL POLARITY

IN PHASE OUT OF PHASE

8 7 6

22uF C24

CUE_MON

R66 47 CUE_OUT

5 4

4 3 2

LO

HI

SH

LO

HI

SH

R168 6.19K

5

SW2

4

6

C144 33pF

R194

3.92K

EXT

LT

GAIN

R239

3.32K

EXT_LT_LO

+4dBu BAL

EXT_LT_HI

AGND

R169 20.0K

2

R195 20.0K

3

5532

U34

C176

0.001uF

AGND

C145

0.001uF

AGND

C128

33pF

R225 6.19K

AGND

1

-2dBu

R167 6.19K

22uF C100

R253

3.92K

2

SW2

1

3

AGND

C143 33pF

EXT_RT_LO

+4dBu BAL

EXT_RT_HI

C175

0.001uF

C164

0.001uF

AGND

8 V+

R158 20.0K

6

R192 20.0K

5

5532

U34

R224 6.19K

AGND AGND

C113

33pF

4 V-

7

-2dBu

R193

3.92K

EXT

RT

GAIN

R238

3.32K

22uF C99

R252

3.92K

AGND AGND

-2dBu

EXTLTMON

-2dBu

EXTRTMON

1

D

C

3

B

CONTRACT NO.

MBA1-1

- SA UR US - Sergey Averin -

APPROVALS

DRAWN

SA

CHECKED

DATE

10-20-07

SA

ISSUED

SA

W# 700928

2

600 Industrial Drive

New Bern, NC 28562

SIZE FSCM NO.

DWG. NO.

D

SCALE

MBA1-1 PCB

22S1001-7

SHEET

1

REV

_

7 OF 8

A

page 4 - 9

D

C

B

A

AIR 1/ Dec 2007

8

8

PGM1LTMON

R155 10.0K

PGM2LTMON R153 10.0K

EXTLTMON R154 10.0K

PGM1RTMON R152 10.0K

PGM2RTMON R150 10.0K

EXTRTMON R151 10.0K

GND

4

6

9

X-Y

INH

S

U33

4053

15

6

10

X-Y

INH

S

U33

4053

4

6

9

14

6

11

X-Y

INH

S

U33

4053

X-Y

INH

S

U32

4053

15

6

10

X-Y

INH

S

U32

4053

14

6

11

X-Y

INH

S

U32

4053

X

Y

X

Y

X

Y

X

Y

X

Y

13

12

X

Y

13

12

1

2

3

5

1

2

3

5

AGND

2

3

AGND

6

5

AGND

R141 10.0K

C79 33pF

8

V+

5532

U25

4

V-

R110 10.0K

C64 33pF

5532

U25

1

22uF C46

-2dBu

-2dBu

7

22uF C45

CUE_MON

ONAIR_TALLY

7

NOTE: PHASE SYMBOLS DENOTE SIGNAL POLARITY

IN PHASE OUT OF PHASE

7

6

R390 10.0K

R399 10.0K

3.32K R396

3.32K R400

3

5

X

Y

X-Y

INH

U75 S

4053

4

6

9

2

3

5532

U74

AGND

R422 10.0K

C331 33pF

1

-2dBu

22uF C318

AGND

CR13

10K

A1

A2

A3

-14dBu

C275 22uF

1

2

X

Y

X-Y

INH

U75 S

4053

15

6

10

R410 10.0K

R391 20.0K

R424 20.0K

R397 10.0K

4

6

1

SW14

2

3

5

CUE

HDPN

SPLIT

3.32K R423

3.32K R409

AGND

13

12

X

Y

X-Y

INH

U75 S

4053

14

6

11

GND

AGND

R395 10.0K

C314 33pF

8

V+

6

5

5532

U74

AGND

4

V-

7

-2dBu

HDPN

22uF C317

10K

CR13

B3

B2

B1

AGND

C316 22uF

-14dBu

6

5

5

4 3 2

AGND

CR12

10K

A1 A2

A3

-14dBu

C277 22uF

MONITOR

10K

CR12

B3 B2

B1

AGND

C276 22uF

-14dBu

R344 10.0K

R366 40.2K

3.32K R352

3.32K R367

3

5

X

Y

X-Y

INH

U66 S

4053

4

6

9

R374 40.2K

C295 10pF

2

3

5532

U65

AGND

1

R375 10

R341 47

-2dBu

MON_LT_OUT

R369 10.0K

R345 20.0K

R377 20.0K

R353 40.2K

3.32K R376

4

6

1

SW13

2

3

5

CUE

MONITOR

SPLIT

3.32K R368

AGND

1

2

X

Y

X-Y

15

6

INH

U66 S

4053

10

13

12

X

Y

X-Y

14

6

INH

U66 S

4053

11

AGND

R350 40.2K

C259 10pF

8

V+

6

5

5532

U65

AGND

4

V-

-2dBu

7

R351 10 R340 47 MON_RT_OUT

4 3

1

D

C

R348 88.7K

C257 10pF

R349 22.1K

6

5

5532

U64

AGND

R373 22.1K

R372 88.7K

7

R343 332

R342 332

C293 10pF

8

V+

2

3

5532

U64

AGND 4 V-

1

R421 88.7K

C329 10pF

R420 22.1K

2

3

5532

U73

AGND

R392 22.1K

R393 88.7K

1

R398 332

R394 332

C312 10pF

8

V+

6

5

5532

U73

AGND

4

V-

7

HDPN_LT

HDPN_RT

B

CONTRACT NO.

MBA1-1

- SA UR US - Sergey Averin -

APPROVALS

DRAWN

SA

CHECKED

DATE

10-20-07

SA

ISSUED

SA

W# 700928

2

600 Industrial Drive

New Bern, NC 28562

SIZE FSCM NO.

DWG. NO.

D

SCALE

MBA1-1 PCB

22S1001-8

SHEET

1

REV

_

8 OF 8

A

page 4 - 10

AIR 1 / Dec 2007

Mother Board Load Sheet

page 4 – 11

4 3

D

C

B

A

AIR 1 / Dec 2007

4

V U L E V E L L T

5

6

7

3

4

8

9

10

CT1

1

2

11

12

13

14

15

VCC

GND

3

2 1

D

2

V U L E V E L R T

C

4

5

6

7

8

CT2

1

2

3

13

14

15

9

10

11

12

GND

VCC

TALLY_LED

B

CONTRACT NO.

VUA1-2

- SA UR US - Sergey Averin -

APPROVALS

DRAWN

SA

DATE

9-19-07

CHECKED

SA

ISSUED

SA

W# 700929

SIZE

C

SCALE

FSCM NO.

600 Industrial Drive

New Bern, NC 28562

DWG. NO.

22S1002

VUA1-2 PCB

SHEET

1 OF 1

REV

_

1

A

page 4 - 12

S C H E M A T I C D R A W I N G S

AIR 1 / Dec 2007

Meters PCB Load Sheet

A P P E N D I C E S

Appendices

Appendix 1

AIR 1 Console Performance Specifications .............................. A-3

Appendix 2

Replacement Parts List ............................................................... A-5

AIR 1 / Dec 2007

page Appendix – 1

A P P E N D I C E S

Appendix 1

Contents

AIR 1 Performance Specifications .............................................. A-3

AIR 1 / Dec 2007

page Appendix – 2

A P P E N D I C E S

AIR 1 Performance Specifications

FREQUENCY RESPONSE

Line, 20Hz

Line, 20kHz

Mic, 20Hz

Mic, 20kHz

-0.05dB

-0.05dB

-0.10dB

-0.10dB

DYNAMIC RANGE

Line, unity gain

Mic, 54dB gain

NOISE

Mic EIN

116dB

99dB

S/N RATIO (ref +8dBu)

Line

Mic

93dB

82dB

-128

THD+N (20Hz-20kHz)

Line, +12dBu <0.003%

Mic (1kHZ), +24dBu <0.02%

IMD (SMPTE)

Line, +4dBu

Mic, +24dBu

<0.006%

<0.006%

DIM

Line, +24dBu

Mic

<0.002%

<0.006%

MAXIMUM INPUT

Line +28dBu

Mic, minimum trim -4dBu

MAXIMUM OUTPUT

Line +28dBu

HEADROOM

+4dBu

SLEW RATE

24dB

12V/µs

BUS CROSSTALK

1kHz

20kHz

-100dB

-96dB

STEREO SEPARATION

1kHz -95dB

OFF ISOLATION

1kHz

20kHz

MAXIMUM GAIN

Line

Mic

-116dB

-100dB

+20dB

+77dB

PHASE RESPONSE

Line, 20Hz-20kHz ±12°

DIMENSIONS

Width

Depth

Height (rear)

Height (front)

15.195”

11.511”

2.442”

1.283”

Specifications and features subject to change without notice.

page Appendix – 3

AIR 1 / Dec 2007

A P P E N D I C E S

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

A P P E N D I C E S

REPLACEMENT PARTS — AIR 1 CONSOLE

COMPONENT

MB-A1 LOADED CARD ASSY

DESCRIPTION

MOTHERBOARD LOADED CARD ASSEMBLY

VU-A1 LOADED CARD ASSY VU METERS LOADED CARD ASSEMBLY

FADER

FADER KNOB

FADER KNOB

FADER KNOB

POT

POT KNOB

POT CAP

NKK SWITCH

SWITCH

SWITCH CAP

SWITCH CAP

RCA CONNECTORS

XLR CONNECTORS

100MM LOW PROFILE MASTER TYPE N FADER ROHS COMPLIANT

BLACK FADER KNOB, 11mm FOR 3000 SERIES FADER FOR LINE INPUT

GREY FADER KNOB, 11mm FOR 3000 SERIES FADER FOR MONITOR AND

HEADPHONE OUTPUT

RED FADER KNOB, 11mm FOR 3000 SERIES FADER FOR MICROPHONE INPUT

"CUE" 10K SINGLE LINEAR VERTICAL POT

15mm BLACK PUSH-ON KNOB FOR 6mm SHAFT FOR "CUE" POT

11MM BLACK CAP W/WHITE LINE FOR "CUE" POT

JB15 SWITCH W/BRIGHTER RED LED AND SILICON GASKET

SINGLE POLE MOMENTARY SWITCH W/YELLOW LED

WHITE SWITCH CAP

CUSTOM MILKY WHITE STYRENE WITH UV INHIBITOR LIGHT PIPE BUTTON

STACKED DUAL THREADED JACK WITH METAL RING FOR ANALOG I/O

CONNECTIONS

XLR JACK FOR MICROPHONE CONNECTIONS

HEADER

POWER SUPPLY

POWER CONNECTOR

MANUAL

HEADER R/A_20 PIN SNAP

25W TRIPLE OUTPUT DESKTOP POWER SUPPLY

RIGHT ANGLE DIN RECEPTACLE ROHS COMPLIANT

TECHNICAL MANUAL FOR AIR 1 CONSOLE

WS P/N

"009714"

"009715"

"540061"

"520001"

"520004"

"520006"

"500126"

"520125"

"530037"

"510290"

"510296"

"530004"

"530274"

"260081"

"260082"

"250081A"

"980038"

"260083"

"009797" page Appendix – 5

AIR 1 / Dec 2007

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