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Summary of Contents for LA Audio PC80 MKII
- Page 1 PC80 MKII Phase Checker User Guide LA Audio (an SCV International Group Company), 40 Chigwell Lane, Lughton, Essex, IG10 3NY, UK Tel: +44 (0)208 418 0778 Fax: +44 (0)208 418 0624. email: sales@laaudio.co.uk...
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Page 2: Table Of Contents
1) INTRODUCTION 2) SPECIFICATIONS 3) INSTALLATION 4) OPERATING INSTRUCTIONS 5) APPLICATION NOTES 6) CABLE TESTING CONTENTS... -
Page 3: Introduction
1. INTRODUCTION The PC80 is an advanced measuring system which allows an engineer to check the phase accuracy of any electronic audio system. It is ideal for the toolbox being small, light and battery powered. The system is made up of two hand held units. The emitter (PC80E) generates a wide band 1Hz pulse as an output signal on an XLR connector or through its own built in speaker, this signal is then passed through the signal chain under test and fed into the receiver (PC80R), electrically via its XLR connector or acoustically by the internal microphone. -
Page 4: Specifications
GENERATOR Pulse rate Frequency spectrum, electrical Frequency spectrum, acoustic Output level, electrical (Acoustic level is fixed) Output load impedance Output source impedance Power Power drain RECEIVER Frequency spectrum, electrical Frequency spectrum, acoustic Input impedance (Mic) Input impedance (Line) Input level (Mic) Input level (Line) Output level Power... -
Page 5: Installation
INSPECTION & UNPACKING The PC80 is carefully packed at the factory in a carton designed to withstand transit handling, however, if transit damage is evident, DO NOT discard any of the packaging and notify the carrier immediately, it is they who are responsible for any claims. OPERATING ENVIRONMENT The units are designed to operate between 0 and 50 deg C (32-122 F) and in an atmosphere of relative humidity up to 80%. -
Page 6: Operating Instructions
The generator provides special pulses which may be fed to the audio system to be tested either by the in- built speaker or via the output connector, the level of this may be adjusted by the level control. The speaker output level is fixed. -
Page 7: Application Notes
• Feed the signal from the generator into a public address system and place the receiver in front of each loudspeaker in turn to ensure that the system is in-phase. • For a multi-mic application. Connect the receiver to a mixing console output and feed each microphone with the generated pulse. -
Page 8: Cable Testing
The PC80 is designed to be an overall polarity checker of electronic audio systems, not a cable tester. If a false reading is found in a system and a cable fault is suspected then ideally a cable tester should be used to trace the fault.
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