Atlas AA200PHD User Manual
Owner’s Manual
200W Mixer Amplifier
AA200PHD
200W Mixer Amplifier
AA200PHD
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800.876.3333 • Fax: 800.765.3435
– 1 – AtlasSound.com
Specifications are subject to change without notice.
AA200PHD
200W Mixer Amplifier
Owner’s Manual
Table of Contents
Important Safety Instructions .................................................................................................................. 3
Introduction ............................................................................................................................................ 5
Key Features .......................................................................................................................................... 5
Applications ............................................................................................................................................ 5
Front Panel Description ........................................................................................................................... 6
Rear Panel Description ............................................................................................................................ 7
PHD Diagnostic System Test ................................................................................................................ 12
Common Amplifier Failure Conditions .................................................................................................. 12
Trouble Shooting the Fault LED ............................................................................................................ 13
How to Calculate Load Impedance ....................................................................................................... 13
Remote Level Control ........................................................................................................................... 15
Remote Input Select (RIS) ..................................................................................................................... 16
Wiring the AA200PHD .......................................................................................................................... 17
Level Control Security Cover Options .................................................................................................. 17
Block Diagram ....................................................................................................................................... 18
Specifications ........................................................................................................................................ 19
Warranty ................................................................................................................................................ 24
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800.876.3333 • Fax: 800.765.3435
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Owner’s Manual
AA200PHD
200W Mixer Amplifier
Important Safety Instructions
The lightning flash with arrowhead symbol within an
equilateral triangle, is intended to alert the user to the
presence of uninsulated “dangerous voltage “ within the
product’s enclosure that may be of sufficient magnitude
to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in the
literature accompanying the product.
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this device near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other device (including amplifiers)
that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the
other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your
safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they
exit from the device.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the device. When a cart is used,
use caution when moving the cart/device combination to avoid injury from tip-over.
13. Unplug this device during lightning storms or when unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is required when the device has been damaged in any way, such as
power-supply cord or plug is damaged, liquid has been spilled, or objects have fallen into the device, the device has been exposed
to rain or moisture, does not operate normally, or has been dropped.
15. WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
Avertissement: pour réduire le risque d’incendie ou de choc électrique, ne pas exposer cet appareil sous la pluie et l’humidité.
16. The apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such as vases, shall be placed on
apparatus.
L’appareil ne doit pas être exposé aux écoulements ou aux éclaboussures et aucun objet ne contenant de liquide, tel qu’un vase, ne
doit être placé sur l’objet.
17. The mains plug is used as a disconnect device. The mains plug of the apparatus should not be obstructed OR should be easily
accessed during intended use. To completely disconnect the power input, the mains plug of apparatus shall be disconnected from
the mains.
La prise du secteur est utilisé pour déconnecter le système. La prise du secteur ne doit pas être obstruée ou doit être facilement
accessible pendant son utilisation. Pour être complètement déconnecté de l’alimentation d’entrée, la prise doit être débranchée du
secteur.
18. This product shall be connected to a mains socket outlet with a protective earthing connection.
Cet appareil doit être connecté à une prise électrique dotée d’une mise à la terre.
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800.876.3333 • Fax: 800.765.3435
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Specifications are subject to change without notice.
AA200PHD
200W Mixer Amplifier
Owner’s Manual
When The Device Is In Use
• To prevent electric shock, do not remove the product cover as there are high voltage components inside. Refer all servicing to
Atlas Sound.
• Should any of the following irregularities occur during use, immediately switch off the power, disconnect the power cord from the
AC outlet and contact Atlas Sound. Do not to attempt to continue operation with the product as this may cause fire or electric shock:
• Smoke or strange smell coming from the unit.
• If the product falls or the case is damaged.
• If water or any metallic objects falls into the product.
• If the power supply cord is damaged in any way.
• If the unit is malfunctioning.
• Do not insert or drop metallic objects or flammable materials into the ventilation holes of the product's cover, as this may result in
electric shock or fire.
• Do not place any containers with liquid or metallic objects on the top of the product. If any liquid spills into the unit, fire or electric
shock may result.
• Never operate this product or touch the power supply cord during an electrical storm, electric shock may result.
• Never exceed the power rating on the product when connecting equipment. Fire and/or property damage may result.
• Operate the product only with the voltage specified on the unit. Fire and/or electric shock may result if a higher voltage is used.
• Do not modify, kink, or cut the power cord. Do not place the power cord in close proximity to heaters and do not place heavy objects
on the power cord, including the product itself, doing so may result in fire or electrical shock.
• Ensure that the safety ground terminal is connected to a proper ground. Never connect the ground to a gas pipe as a catastrophic
disaster may result.
• Be sure the installation of the product is stable, avoid slanted surfaces as the product may fall and cause
injury or property damage.
WARNING
When Installing The Product
• Plugging in or unplugging the power cord with wet hands may result in electric shock.
• Never move the unit with the power cord plugged into the wall, as damage to the power cord may result.
• When unplugging the cord from the wall, grasp the plug, NOT the cord.
• Never install this product in humid or dusty locations, nor in direct sunlight, near sources of heat, or in areas where sooty smoke or
steam are present. Fire and electric shock may result.
• Keep all sides of the unit at least 31⁄2" away from objects that may obstruct air flow to prevent the unit's internal temperature rise.
When The Product Is In Use
• Never place heavy objects on the product, causing it to fall and/or break, resulting in personal injury and property damage. In
addition, the product itself may fall and cause injury and property damage.
• Contact Atlas Sound for instructions on cleaning the inside of the unit. Large accumulations of dust inside the unit may result in heat
buildup and fire.
• Ensure that the power supply plug is securely plugged into the wall outlet. Never allow dust to accumulate on the power plug or
inside the wall outlet.
• When cleaning the unit or the unit is not to be operated for an extended period, unplug the power cord from the wall.
CAUTION
CAUTION
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800.876.3333 • Fax: 800.765.3435
AtlasSound.com – 4 –
Owner’s Manual
AA200PHD
200W Mixer Amplifier
Introduction
Congratulations and thank you for purchasing the Atlas Sound AA200PHD mixer amplifier. This new and innovative professional grade
product has been designed from the ground up to include the important features that professional installation personnel require to
meet or exceed their customer’s expectations. Small, compact, and engineered for reliability, the Atlas Sound AA200PHD will provide
years of service and flexibility in today’s background music and paging applications.
Key Features
• 200W Into 25V/70.7V and 4Ω Loads
• Automated Diagnostic System Test (Push Here Diagnostic)
• Four Balanced Mic/Line/Tel Inputs w/ Phantom Power
• Three Unbalanced, Summing Line Level Inputs
• Input Assignable Zone 2 Output
• Remote Level Control
• Remote Input Select (RIS)
• Preamp Out / Amp In for External Processors
• Variable Mute Sensitivity Control for Input 1
• Contact Closure Mute Terminals
• Rear Mounted DIP Switch Allows Mute Recieve for Inputs 2 Through 6
Applications
The Atlas Sound AA200PHD is the perfect choice for distributed business paging and background music (BGM) systems, small to
medium speech privacy systems, and in applications where music on hold (MOH) plus paging is required.
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800.876.3333 • Fax: 800.765.3435
– 5 – AtlasSound.com
Specifications are subject to change without notice.
AA200PHD
200W Mixer Amplifier
Owner’s Manual
Front Panel
2
6345
17 8
1. Power Switch
This push switch (On/Off) supplies power to the mixer amplifier.
2. Power Indicator
This LED illuminates Blue when the power switch is turned On.
3. Signal Indicator
When the signal LED illuminates Green, input signals are connected to the amplifier. The Signal LED is PRE the input level controls.
4. Peak Indicator
The AAPHD Series amplifier has an input signal peak limiter located between the preamp mixer stage and the power amplifier stage.
This input signal peak limiter is designed to prevent the amplifier from being over driven by excess input signals that may cause
damage to the amplifier. If the amplifier preamp stage senses excessive input signal, the peak limiter will engage reducing the signal
and the Peak LED will illuminate Red. An occasional flash of the LED is OK. If ON steady state; turn the associated level control down
until the Peak LED turns OFF. It may be necessary to reduce the signal level at the input of the amplifier.
5. Limit Indicator
This LED serves two functions:
A. PHD Test Circuit Load Fault Indicator - When testing the system using the PHD feature for proper wiring and amplifier
loading, this LED will illuminate Yellow if a fault is sensed in the audio speaker system. See “Using the PHD Load Impedance
Testing System.”
B. Excessive Current Draw Limit Indicator - Will illuminate Yellow when the amplifier is consuming excessive current. At that
point, a current limiting circuit is activated, reducing the output power to prevent damage to the amplifier. The most likely cause
for the fault is an incorrect load impedance connected to the amplifier. The LED should not come on if a proper load is applied.
If the Limit LED is illuminating, use the PHD Load Impedance test explained in the manual to help troubleshoot the cause of the
problem. Note: An occasional LED flash is okay. When LED is ON audible distortion may be heard at the speakers.
6. PHD Switch
The AAPHD Series features a patent pending Amplifier Diagnostic System. The PHD (Push Here Diagnostic) is simple to use and
very effective in testing the speaker wiring and load impedances on 70V speaker systems to assure the proper load is applied to the
amplifier. Please read the section on “Using the PHD Feature” before activating the circuit. To activate the PHD circuit a small tool with
a point will be required to access the momentary switch through the hole on the front panel. See “Using the PHD Mixer Amplifier Load
Impedance Testing System.”
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800.876.3333 • Fax: 800.765.3435
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Owner’s Manual
AA200PHD
200W Mixer Amplifier
Front Panel
7. Input 1-6 Level
The rotary control varies the amplitude of the signal fed to the amplifier input. Turn clockwise to increase and counter-clockwise to
decrease the signal level.
8. Master Level
The Master Level control will raise or lower all the input channels together. A good starting point for setting gain structure is to set the
Master Level control at the 12:00 position, and then adjust the individual channels one at a time.
Rear Panel
1010 88 9911 1312
5171424 25 23 22 31 2 20 7
461521 16 1819
1. Bass Control
Normally set at the 12:00 position, rotating clockwise will increase (boost) bass frequencies to a maximum of +6dB at 100Hz. Rotating
counter-clockwise from the 12:00 position will decrease (cut) bass frequencies to a maximum of -6dB at 100Hz.
2. Treble Control
Normally set at the 12:00 position, rotating clockwise will increase (boost) treble frequencies by +6dB at 10kHz. Rotating
counter-clockwise from the 12:00 position will decrease (cut) treble frequencies by -6dB at 10kHz.
3. Input 1
Balanced Microphone or Line level signals connect to the (+), (-), and (G) terminals. To select between Mic or Line input levels, refer
to the DIP switch chart on the rear of the amplifier for feature assignment. If connecting an unbalanced line level input, tie (short) the
(G) and (-) terminals together for negative or ground connection and the positive or (+) signal to the (+) terminal on the amplifier input.
If the input is used in Mic mode, Phantom power for condenser type microphones is available in the DIP switch settings on the rear
panel. Input 1 level control located on the front panel adjusts the levels to the amplifier mix.
4. Remote Mute Connector
Shorting the Remote Mute terminals, (G) to (M), will mute the inputs that are assigned to receive the mute command. When an input
is set to Mute Receive via the corresponding DIP switch, the input associated to the switch will be muted when terminals (G) and (M)
are shorted together. This connection is usually done via remote switch on a microphone. Input 1 cannot be muted.
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800.876.3333 • Fax: 800.765.3435
– 7 – AtlasSound.com
Specifications are subject to change without notice.
AA200PHD
G
–
+
G
–
+
Mic
Trim
200W Mixer Amplifier
Owner’s Manual
Rear Panel
5. VOX Mute Sensitivity Control
Input 1 signal can be used to trigger or activate a mute command. When an input is set to Mute Receive via the corresponding DIP
switch, the input associated to the switch will be muted when a signal is applied to Input 1. The VOX Mute Sensitivity Control adjusts
how sensitive the mute circuitry from Input 1 reacts. Setting the control fully counter-clockwise will lower the sensitivity, where a
higher amplitude signal will be required at Input 1 to trigger the mute send circuits. Fully clockwise will raise the sensitivity of the mute
circuits, where a lower amplitude signal will trigger a mute send. Calibration of this control in conjunction with the microphone to be
used is very important to assure the proper amount of signal from the mic is enough to trigger the mute circuits. If it is not calibrated
properly, the mute may not be triggered when a weak voice vs a strong voice uses the mic.
6. Mic Trim
This variable control allows fine tuning of the gain of input. There is 20dB of variable gain available. The trim only applies when the
input is set to the “Mic” position on the DIP switch.
7. Multi Function DIP Switch Input 1
Understanding the functionality of the DIP switches is key to maximizing the versatility of the AAPHD Series. When a switch is in the
up position, the function is “OFF or assigned to the feature stated”; when a switch is in the down position, the function is “ON or
assigned to the feature stated “.
1
Phantom
Off
On
Switch A
• DP SW #1 - Input 1 Phantom Power 24VDC is active when Input 1 is set to Mic mode and the switch is in the ON position.
Note: Only use this feature if you are using condenser microphones, otherwise leave in the “OFF” position.
• DP SW #2 - Mute Receive Input 1 - When “ON”, Input 1 signal will be muted if a signal is present on Input 1 or if the
Remote Mute Terminals are shorted together.
• DP SW #3 - Zone 2 Assign Input 1 - When “ON”, Input 1 signal will be routed to the Zone 2 Output terminals. The signal
routed is PRE the front panel level controls.
• DP SW #4 - When in the “MIC” position, Input 1 will accept microphone level signals; when in the “Line” position, Input 1 will
accept line level or telephone signals.
2
Mute RCV
Off
On
3
Zone 2
Off
On
4
Bal Input
Line
Mic
8. Inputs 2 & 3
Balanced Microphone or Line level signals connect to the (+), (-), and (G) terminals. To select between Mic or Line input levels, refer
to the DIP switch chart on the rear of the amplifier for feature assignment. If connecting an unbalanced line level input, tie (short) the
(G) and (-) terminals together for negative or ground connection and the positive or (+) signal to the (+) terminal on the amplifier input.
If the input is used in Mic mode, Phantom power for condenser type microphones is available in the DIP switch settings on the rear
panel. Input 2 & 3 level controls located on the front panel adjust the levels to the amplifier mix.
9. Mic Trim Inputs 2 & 3
This variable control allows fine tuning of the gain of input. There is 20dB of variable gain available. The trim only applies when the
input is set to the “Mic” position on the DIP switch.
Telephone: 800.876.3333 • Fax: 800.765.3435
AtlasSound.com – 8 –
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
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