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.
2 contents 1) introduction 3 2) specifications 4 3) installation 5 4) operating instructions 6 5) application notes 7 6) cable testing 8.
3 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 ...
4 2.Specifications generator pulse rate 1hz frequency spectrum, electrical 1hz to 20khz frequency spectrum, acoustic 200hz to 5khz output level, electrical 0 to 1v (acoustic level is fixed) output load impedance !K ohm to infinity output source impedance 1k ohm power 9v pp3 battery (= approx 50 hour...
5 3. 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. Opera...
6 4. 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. Once this signal has been fed th...
7 5. 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...
8 6. 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. The la audio 't-box' will check a cable and...
