Atlas AA50PHD Bedienungsanleitung

Atlas Empfänger AA50PHD

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Specifications are subject to change without notice.

AtlasSound.com – 1 –

1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.

Telephone: 800.876.3333 • Fax: 800.765.3435

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STAPLE SHORTCONDUIT SHORT

TAP SETTING: 8W8W8W 8W+ ++ = 40W SAFE=4W4W ++

TAP SETTING:

8W8W8W 8 OHM+ ++ FAULT=8W8W ++

TAP SETTING: 16W16W16W 16W+ ++ = 80W FAULT=

8W8W ++

ERROR

ERROR ERROR

PHD DIAGNOSTIC TEST CONDITION EXAMPLES

AA50PHD - REAR

PHD TEST

MOMENTARY

SWITCH

LED OFF=TEST PASS

LED ON= TEST FAIL

SAFE LOAD--

EXAMPLE

Tap settings OK for

rated amp wattage

LOAD FAULT--

EXAMPLE

Wrong Tap setting

Tap settings exceed

rated amp wattage

LOAD FAULT--

EXAMPLE

LOAD FAULT--

Conduit and Staple

Short to ground

PHD

TEST

LED OFF

TEST

PASS

PHD

TEST

LED ON

TEST

FAIL

PHD

TEST

LED ON

TEST

FAIL

PHD

TEST

LED ON

TEST

FAIL

AAPHD Series

Application Example

AAPHD Ampliﬁer Impedance Diagnostic Test Example

AAPHD Series

Application Example

Specifications are subject to change without notice.

AtlasSound.com – 2 –

1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.

Telephone: 800.876.3333 • Fax: 800.765.3435

Overview:

The AAPHD Series features a patent pending Ampliﬁer Diagnostic Test System. The “Push Hear Diagnostic” (PHD) test is simple to use and

very effective in testing for speaker wire and load impedance faults in 70.7V systems. The PHD circuit can be activated using a small tool

with a point to access the momentary switch through the hole on the front panel. This test circuit produces a test tone over the speakers

analyzing multiple conditions to assure the ampliﬁer is wired and loaded properly.

Application Example Description:

Application Example Description: This example illustrates an AA50PHD ampliﬁer connected to a 70.7V speaker system with various tap

settings, or load conditions, and how the PHD fault indicator responds.

Example 1: Shows six Atlas FAP series 70V speakers wired in parallel. Two speakers have 4-watt tap settings and four speakers have 8-watt

tap settings resulting in a total of 40-watts, a “safe” load to the amp. The total power taps selected on all speakers combined should not

exceed the ampliﬁer’s maximum power rating or a fault may occur.

Example 2: Shows the same speaker setup but with one speaker mistakenly tapped at 8 Ohms. This low impedance setting will cause a

Fault condition for the system. When testing, this speaker with the wrong Tap setting will be very loud compared to the rest of the speakers.

Example 3: Shows the same speaker setup with speaker settings tapped so that the total power exceeds the power rating of the ampliﬁer

by a signiﬁcant amount.

Example 4: Shows the same speaker setup with two “short” conditions that can occur during installation, a staple over the wire and a

conduit short.

Beneﬁts:

• Automated Impedance Diagnostic System Test

• Easily Test Speaker Loads After Installation without additional Test Equipment

• Avoid Most Common Ampliﬁer Failures

• Reduce Service Calls

• Provide Conﬁdence on Large Installs

PHD Front Panel LED Limit Indicator Functions:

1. 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.

2. Excessive Current Draw - Will illuminate Yellow when the ampliﬁer is consuming excessive current. The most likely cause for the fault

is an incorrect load impedance connected to the ampliﬁer. The LED will not be constantly illuminated if a proper load is applied.

Note: An occasional LED ﬂash is okay during standard operation. When the LED is illuminated audible distortion may be heard at the

speakers.

Application Example Notes:

1. Make sure no people are present or near speakers during the diagnostic test without taking proper precautions against hearing

damage. The SPL can be excessive depending on the tap settings and sensitivity of the speakers.

2. Turn the level control “Off” (fully counter clockwise) before pressing the PHD switch and initiating the test. If the test passes, adjust

the level according to application required.

3. Enlisting the assistance of another person to walk the area being tested to listen to the speakers during the test can quickly identify

an incorrect tap setting (one speaker is louder than others).

AAPHD Series

Application Example

Produktspezifikationen

Marke:	Atlas
Kategorie:	Empfänger
Modell:	AA50PHD
Breite:	210 mm
Tiefe:	276 mm
Gewicht:	4762 g
Produktfarbe:	Schwarz
Übertragungstechnik:	Kabelgebunden
Impedanz:	4 Ohm
Höhe:	93 mm
Energiequelle:	AC
Zweck:	Leistung/Phase
AC Eingangsspannung:	220 - 240 V
Lautstärkeregler:	Drehregler
Paketgewicht:	5624 g
Anzahl Kanäle:	3 Kanäle
Audio Kanäle:	3.0 Kanäle
THD, totalklirren:	5 %
Rauschverhältnis (SNR):	55 dB
Frequenzbereich:	80 - 15000 Hz
Bass-Justage:	Ja
Lautsprecher-Konnektivitätstyp:	Phoenix 4-pin
Treble Justage:	Ja
Leistungshöhepunkt pro Kanal:	50 W
Gewinnanpassung:	Drehregler