Manuale d’uso / di manutenzione del prodotto PA 300 del fabbricante Extron electronic
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User ’s Manual Peaking Amplifier 68-1108-01 B 12 08 P A 300 Fr ont cover.
Pr ecautions This symbol is intended to alert the user of important opera ting an d maint enance (servi cing) i nstruc tions i n the literature provided with the equipment. This symbol is intended to alert the user of the presence of uninsulated dangerous voltage within the product’s enclosure that may present a risk of electric shock.
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i P A 300 Peaking Amplier • T able of Contents T able of Contents Chapter One • Introduction ................................................... 1-1 About this Manual .................................................................... 1-2 About the P A 300 .
ii P A 300 Peaking Amplier • T able of Contents T able of Contents, cont’d 68-1108-01 B 12 08 All trademarks mentioned in this manual are the properties of their respective owners.
P A 300 1 Chapter One Intr oduction About this Manual About the P A 300 Features.
P A 300 Peaking Amplier • Introduction Intr oduction 1-2 About this Manual This manual contains information about the Extron P A 300 peaking amplifier , and includes information on how to install, operate and troubleshoot the unit.
P A 300 2 Chapter T wo Installation and Operation Installation Overview Mounting the P A 300 Front Panel Features Rear Panel Features Cabling.
P A 300 Peaking Amplier • Installation and Operation Installation and Operation 2-2 Installation Overview 1 Be certain the source device, the P A 300, and the output device are turned of f and disconnected from the power source. 2 If desired, mount the P A 300 in a rack or furniture.
P A 300 Peaking Amplier • Installation and Operation 2-3 T abletop use Four self-adhesive rubber feet are included with the P A 300. For tabletop use, affix one foot at each corner of the bottom side of the unit and place the unit in the desired location.
P A 300 Peaking Amplier • Installation and Operation Installation and Operation, cont’d 2-4 Use 2 mounting holes on opposite corners. (2) 4-40 x 3/16" Screws 1U Universal Rac k Shelf F ront fa lse fa ceplate uses 2 screws.
P A 300 Peaking Amplier • Installation and Operation 2-5 1 . Remove two screws fr om one side of the unit. Retain the screws for possible futur e use. 2 . Attach one bracket to the side of the unit, using the provided machine scr ews. 3 . Repeat steps 1 and 2 on the other side of the unit.
P A 300 Peaking Amplier • Installation and Operation Installation and Operation, cont’d 2-6 Through-desk mounting Mount the P A 300 through a desk or table, using the optional mounting kit (part # 70-077-02 ), as illustrated below . Through-desk mounting the P A 300 1 .
P A 300 Peaking Amplier • Installation and Operation 2-7 Front Panel Featur es GAIN PEAKING PA 300 PEAKING AMPLIFIER LF HF 1 2 3 a Power LED — Lights when the P A 300 is receiving power . b Gain control potentiometer — Adjusts the amount of compensation for amplitude losses caused by cable resistance.
P A 300 Peaking Amplier • Installation and Operation Installation and Operation, cont’d 2-8 Cabling The P A 300 is specifically designed for long cable run applications. For best results, install the amplifier close to the signal source to drive a long cable to the display .
P A 300 3 Chapter Thr ee Adjusting the Display Signal Compatibility Potentiometer Adjustments.
P A 300 Peaking Amplier • Adjusting the Displa Adjusting the Display 3-2 Signal Compatibility The P A 300 processes VGA-UXGA, RGBHV , RGBS, RGBsB, RsGsBs, HDTV , and component video signals.
P A 300 Peaking Amplier • Adjusting the Displa 3-3 Adjusting the peaking T o adjust the Peaking potentiometers, do the following: 1. Using MS Paint and a spreadsheet, cr eate a testing image on your PC desktop that includes squares, lines, text, and gradations of color .
P A 300 Peaking Amplier • Adjusting the Displa Adjusting the Display , cont’d 3-4 When the LF is under adjusted, the streaking is the inverse color of the image, as shown below . The potentiometer should be adjusted midway between these two extremes.
P A 300 A Appendix A Specifications, Part Numbers, and Accessories Specifications Parts.
P A 300 Peaking Amplier • Specications, Parts, Accessories Specifications, Part Numbers, and Accessories Specifications Video Gain ................................................ -2.5 to +3.5 dB (x0.75 to x1.4), adjustable; default = 0 dB Peaking/equalization Low frequency .
P A 300 Peaking Amplier • Specications, Parts, Accessories Minimum/maximum levels ........ Analog: 0.4 V to 2.0 Vp-p Impedance ...................................... 75 ohms Return loss ..................................... -32 dB @ 5 MHz DC offset .
P A 300 Peaking Amplier • Specications, Parts, Accessories Specifications, Part Numbers, Accessories, cont’d Enclosure dimensions .................. 1.7'' H x 8.7'' W x 6.0'' D (1U high, half rack wide) (4.3 cm H x 22.
A-5 Parts Included parts Included parts Replacement Part number P A300 60-755-01 IEC power cord Rubber feet (4) P A 300 Peaking Amplifier User's Manual Optional accessories Description Part Number 1U, 9.5" deep Universal Rack Shelf, RSU 129 60-190-01 1U, 9.
P A 300 Peaking Amplier • Specications, Parts, Accessories Specifications, Part Numbers, Accessories, cont’d A-6.
Extron’ s W arranty Extron Electr onics warrants this product against defects in materials and workmanship for a period of three years fr om the date of purchase.
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Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Extron electronic PA 300 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Extron electronic PA 300 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Extron electronic PA 300 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Extron electronic PA 300 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Extron electronic PA 300, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Extron electronic PA 300.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Extron electronic PA 300. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Extron electronic PA 300 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.