Atlas Sound AA120M Mixer Amplifier Internal Jumper Locations, Optional Input Transformer

Page 23

AA120M MIXER AMPLIFIER

INTERNAL JUMPER LOCATIONS

WARNING

OWNER'S MANUAL

Remove the power cord from the wall before proceeding as hazardous voltages are present inside the AA120M.

1.Disconnect the power cord from the wall socket.

2.Remove the screws securing the top cover of the AA120M, and remove the cover.

3.Refer to circuit board layout in the diagram below to locate the jumpers.

4.Configure the jumpers to suit your application.

5.Replace top cover and secure using the screws removed in step 2.

6.Re-install the power cord and test the configuration.

If you have questions or need assistance with your specific application, contact Atlas Sound Tech Support at 1-800-876-3333.

4

R609

R610

R661

R676

C589

R539

R618

C625

D522

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OPTIONAL INPUT

 

 

 

 

 

 

 

 

TRANSFORMER

 

 

 

 

 

 

 

 

JUMPERS

R561

D535

C534

R562

C535

Optional Input

Transformer

X'FMR BYPASS

X'FMR IN

IT501

JP501

JP502

XFMR location on MAIN PCB

Q50

D505

C545

INPUT2~6 TO ZONE 2

A-PRE MUTE

B-POST MUTE

INPUT2~6 TO ZONE 3

A-PRE MUTE

B-POST MUTE

MAIN PCB

 

R516

 

 

 

Q546

D520

R699

 

R668

 

 

R690

 

 

 

C565

Q550

 

 

 

 

 

 

 

 

 

 

 

 

C597

R586

 

 

 

C646

D517

 

R641

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R689

D507

C570

 

 

 

R640

 

 

 

 

 

C574

 

 

 

R624

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C522

 

 

 

 

 

R529

 

 

 

 

Q547

 

 

 

 

 

 

 

 

 

 

 

 

 

C566

C628

Q543

C576

 

 

 

 

 

 

 

 

 

 

 

 

 

C572

C573

 

C544

C668

C669

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D523

 

 

 

1

 

 

 

 

R585

 

1

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

R588

 

 

CN504

 

 

 

 

 

 

 

INPUT5

 

 

 

 

 

 

 

RCV VOX MUTE

 

 

 

 

 

C664

 

 

 

 

 

 

VOX MUTE RECEIVE

 

 

CN506

 

 

 

 

 

 

 

 

 

 

 

 

CN503

 

 

 

A-ON

B-OFF

 

 

 

 

J508

A

 

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INPUT2~6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MUTE CC

J506

 

 

 

J507

 

 

 

J513

 

 

 

 

A

B

J517

 

 

 

 

CC MUTE RECEIVE

 

A

 

B

A

 

B

A

B

 

J515

A

B

 

 

A-ON

B-OFF

 

ZONE 2

J502

A

 

B

J504

A

 

B

J509

A

B

 

J510

A

B

J511

A

B

 

 

 

 

 

 

ZONE 3

J505

A

 

B

J503

A

 

B

J512

A

B

 

J514

A

B

J516

A

B

C665

 

 

 

 

 

 

 

 

INPUT 6

 

 

INPUT 5

 

 

 

INPUT 4

 

 

INPUT 3

 

 

INPUT 2

C633

 

R622

C560

R524

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R620

621

 

R548

D532

C626

 

 

C623

 

 

R623

 

 

 

 

 

Jumper locations on MAIN PCB

Specifications are subject to change without notice

AtlasSound.com

1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. •

TELEPHONE: (800) 876-3333

FAX: (800) 765-3435

©2006 ATLAS SOUND LP

Printed in U.S.A.

00106

ATS002179 RevA 01/06

PP

23

Image 23
Contents AA120M Mixer Amplifier AtlasSound.comSafety Instructions AA120M Mixer Amplifier Table of ContentsApplications FeaturesIntroduction Message Conventions and Safety Symbols AA120M Mixer Amplifier Safety PrecautionsAtlasSound.com AA120M Mixer Amplifier Front Panel Description AA120M Mixer Amplifier Rear Panel Description DipswitchInput Inputs 2, 3, Input 1 TrimMute Sens For Vox Mute Bus Mute Send On/OffTape Out VOX Mute Switch For Channels 2, 3, 4,Zone 2 And Zone 3 Level Controls Input 6 Module SlotBridge Sel Pre OutPwr Bridge In/OutZone 2 Out Zone 2 And Zone 3 Mute Assign Special Internal FeatureRemote Mute Priority Mute Zone 3 OutCircuit Breaker VDC TerminalsRelay Loudspeaker TerminalsPower Cord Unswitched OutletAA120M Mixer Amplifier Quick Start Examples Dipswitch SettingsOFF Example 3 Optional Plug-In Module Application Example 4 Remote Level Control Example 5 Hotel Room Combining Using Two AA120Ms BGM Source Security Plug Installation AA120M Mixer Amplifier Wiring the AA120MRack Mount KIT To VCA TerminalsOptional Input Transformer AA120M Mixer Amplifier Internal Jumper LocationsBlock Diagram for AA120M Sensitivity AA120M Mixer Amplifier SpecificationsAtlasSound.com AtlasSound.com Service Limited Warranty
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AA120M specifications

The Atlas Sound AA120M is a versatile and powerful amplifier designed primarily for commercial and professional audio applications. This robust unit stands out due to its impressive features, advanced technologies, and impeccable sound characteristics, making it a popular choice for venues such as conference halls, schools, and places of worship.

At the heart of the AA120M is its 120-watt output, which ensures that audio distribution is both loud and clear, capable of powering a variety of speaker systems. Its high-efficiency design incorporates a Class D amplification technology that not only enhances sound quality but also minimizes power consumption. This efficient power management results in lower heat output, which prolongs the lifespan of the unit and reduces the need for extensive cooling systems.

The AA120M is equipped with multiple input options, including balanced XLR and unbalanced RCA connectors, accommodating various audio sources. The microphone input features a priority mode, allowing announcements or important messages to override background music seamlessly. This feature is particularly beneficial in environments where announcements are critical to safety and communication.

Sound quality is further enhanced by the built-in EQ controls, allowing users to shape the audio output to suit the acoustics of their environment or personal preferences. The amplifier also offers a low-impedance operation, which supports a wide range of speaker systems, enhancing compatibility across different setups.

Another noteworthy characteristic of the AA120M is its built-in limiter circuitry, designed to prevent audio peaks that could lead to distortion or damage to connected speakers. This protective feature makes it an ideal choice for public address systems where audio integrity is paramount.

Additionally, the amplifier includes a sleek, rack-mountable design, making it easy to integrate into existing audio setups. Its durability and reliability ensure that it can handle extended use without compromising performance.

In summary, the Atlas Sound AA120M is a multifunctional amplifier that combines power, efficiency, and flexibility. With its advanced features and technologies, it stands out as a compelling choice for anyone looking to enhance their audio experience in commercial or professional settings, delivering clear and powerful sound with every use.