Audioaccess PX-612 Manuel utilisateur
AUDIOACCESS
PX-612
MULTI-ROOM AMPLIFIER
PRELIMINARY SERVICE MANUAL
Harman Consumer Group
250 Crossways Park Dr.
Woodbury, New York 11797
MADRIGAL AUDIO LABS
Procedure No: Revision: Title: PX – 612 TEST PROCEDURE
MP10.01-F1
Prepared By: Wayne Mergel Approved By: Page 1 of 1
Procedure:
I. Connect AC Line to PX-612, and then turn on with the power switch on rear panel. Observe LED on the
front panel. It should initially be Red, then change to Amber. Watch for about 1 minute to ensure it does
not turn Green. Set all six stereo/bridged switches to the stereo position (switched to right).
II. Connect speaker harness to PX-612 and the speaker switch box.
III. On PX-612 back panel connect Audio Source to Zone 1 Input.
IV. As soon as the Audio Source is connected to Zone Inputs on the rear of the unit, the front panel LED
should change from Amber to Green.
V. Make sure that the speaker switch box is set to the same number as the Audio Source is plugged into.
You should be able to hear Audio in both speakers.
VI. Move Right Audio Source to other Zone 1 Right RCA and listen for Audio cut off and come back on the
right speaker.
VII. Switch Zone 1 to bridged mode by moving switch Left. Then move Left Audio Source to the second Zone
1 Left RCA. The Audio should cut out completely on both Left and Right speakers.
VIII. Switch back to stereo on Zone 1 by switching switch back to the Right (stereo mode) and move the Left
RCA connector to Zone 2 and listen for the Left speaker to cut out.
IX. Switch the speaker switch box to Zone 2 and listen for the Left channel to come on as the Right goes off.
X. Move Left RCA to Zone 2 also.
XI. Repeat steps VI through X, working through all Six Zones.
XII. As each Zone is activated observe that the Green LEDS inside unit light as it’s respective zone “sees” an
Input.
XIII. After testing all Six Zones disconnect Audio Source and leave unit on for several minutes. The Front
panel LED should eventually change to Amber Again.
XIV. This completes Testing.
Purpose: The purpose of this document is to establish a procedure for testing PX-612 units.
Application: For use in the PX-612 Department
Related Documents: None Equipment Needed: 1-Audio Source, 1 -Speaker Switch Box, 1-48” Speaker Wire Harness
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