Manuel d'utilisation / d'entretien du produit PA 300 du fabricant 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 point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Extron electronic PA 300 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Extron electronic PA 300 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Extron electronic PA 300, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Extron electronic PA 300 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Extron electronic PA 300, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Extron electronic PA 300.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Extron electronic PA 300. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Extron electronic PA 300 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
