Atlas AA50PHD Instrukcja obsługi - Strona 11
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AA50PHD
Owner's Manual
50W Mixer Amplifier
Running a Self-Diagnostic Test using the PHD Feature
Step 1 - Install the AAPHD Mixer amplifier, connect the input signals. Turn all levels to minimum. Do not attach the speaker system to
the amp at this point.
Step 2 - Install the speaker system per the design, double check speaker tap settings. The total power for all the speakers should NOT
exceed the maximum power rating of the amplifier installed.
Step 3 - Connect the speaker system to the amplifier. Pay special attention when connecting the speaker leads to the proper terminals
on the amplifier.
Step 4 - Turn the amplifier On.
Step 5 - Before starting the system Diagnostic test. Make sure no people are present or near the speakers during the diagnostic test
without taking proper precautions. A
⁄
watt test tone will be present at each speaker. The audible SPL level will be based on the
1
2
power tap setting at each speaker and sensitivity specification of the speaker. The audible SPL level may be alarming to some people.
Wear proper hearing protection before starting the test.
Step 6 - Activate the PHD circuit by inserting a small, pointed tool through the hole on the front panel labeled PHD. Press and hold the
momentary switch for 1-2 seconds, then release. A test tone will be audible through the speaker system. If the Limit LED does not
illuminate Yellow, the system is properly set up and no errors in the system were found. Continue the installation.
If the Limit indicator does turn Yellow, STOP and read the "How To Trouble Shoot Your Speaker System if the Limit LED is
Illuminating" section.
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.