Extron electronics PA 300 User Manual
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Extron electronics PA 300 User Manual

Extron pa 300 peaking amplifier user's manual
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User's Manual
PA 300
Peaking Amplifier
68-1108-01 B
12 08

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Summary of Contents for Extron electronics PA 300

  • Page 1 User’s Manual PA 300 Peaking Amplifier 68-1108-01 B 12 08...
  • Page 2 Precautions Safety Instructions • English Warning Power sources • This equipment should be operated only from the power source This symbol is intended to alert the user of important indicated on the product. This equipment is intended to be used with a main power operating and maintenance (servicing) instructions in system with a grounded (neutral) conductor.
  • Page 3 • • • • • • • • • • • FCC Class A Notice This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

  • Page 5: Table Of Contents

    Adjusting gain with an oscilloscope ........3-2 Adjusting gain without an oscilloscope ....... 3-2 Adjusting the peaking ............3-3 Appendix A • Specifications, Part Numbers, and Accessories ..................A-1 Specifications ................A-2 Parts ....................A-5 Included parts.................A-5 Optional accessories ..............A-5 Cables..................A-5 PA 300 Peaking Amplifier • Table of Contents...
  • Page 6 Table of Contents, cont’d All trademarks mentioned in this manual are the properties of their respective owners. 68-1108-01 B 12 08 PA 300 Peaking Amplifier • Table of Contents...

  • Page 7: Chapter One • Introduction

    PA 300 Chapter One Introduction About this Manual About the PA 300 Features...

  • Page 8: About This Manual

    RGBHV output. The unit restores the sync signals, but does not process them for format, polarity, or delay. The PA 300 is housed in a 1U, half rack, 6" (15.2 cm) deep, 2-piece enclosure, and uses an internal power supply.

  • Page 9: Chapter Two • Installation And Operation

    PA 300 Chapter Two Installation and Operation Installation Overview Mounting the PA 300 Front Panel Features Rear Panel Features Cabling...

  • Page 10: Installation Overview

    AC source. Turn on the input and output devices. Mounting the PA 300 The PA 300 peaking amplifier can be set on a table; mounted on a rack shelf; or mounted through or under a desk, podium, or tabletop.

  • Page 11: Tabletop Use

    Rack mounting For optional rack mounting, do not install the rubber feet. Mount the PA 300 on a 6" deep, 1U high rack shelf (part #60-190-10 or 60-604-10) or a 9.5" deep 1U high rack shelf (part #60-190-01 or 60-604-01).

  • Page 12: Under-Desk Mounting

    Mounting the PA 300 on a 9.5" deep rack shelf Under-desk mounting Furniture-mount (under a desk or shelf) the PA 300 using the optional mounting kit (part #70-077-01), as illustrated below. Under-desk mounting the PA 300 PA 300 Peaking Amplifier • Installation and Operation...
  • Page 13 Repeat steps 1 and 2 on the other side of the unit. Hold the PA 300 with the attached brackets against the mounting location. On the mounting surface, mark the location of the four bracket screw holes.

  • Page 14: Through-Desk Mounting

    Installation and Operation, cont’d Through-desk mounting Mount the PA 300 through a desk or table, using the optional mounting kit (part #70-077-02), as illustrated below. Through-desk mounting the PA 300 Install the brackets as shown above. Tighten the screws only enough to allow sliding of the brackets.

  • Page 15: Front Panel Features

    GAIN PEAKING PA 300 PEAKING AMPLIFIER Power LED — Lights when the PA 300 is receiving power. Gain control potentiometer — Adjusts the amount of compensation for amplitude losses caused by cable resistance. Peaking control potentiometers — provide optimum signal compensation.

  • Page 16: Cabling

    For best results, install the amplifier close to the signal source to drive a long cable to the display. The inputs of the PA 300 are BNC connectors. If the signal source uses a 15-pin HD connector, use an Extron SYM BNCM cable (Extron part #26-533-xx) to make the connection.
  • Page 17 PA 300 Chapter Three Adjusting the Display Signal Compatibility Potentiometer Adjustments...

  • Page 18: Signal Compatibility

    LF for streaking adjustment and HF for detail adjustment. The goal in adjusting the PA 300 Gain and Peaking potentiometers is to produce a sharp image (i.e., an image free of streaking or smearing) on the attached display.

  • Page 19: Adjusting The Peaking

    Use the illustration below as a guide. Adjust the LF (low frequency) potentiometer until the image is free of streaking. When the LF is over adjusted, the streaking is the same color as the image, as shown below. PA 300 Peaking Amplifier • Adjusting the Display...
  • Page 20 When the HF is under adjusted, smearing may appear, as shown below. The potentiometer should be adjusted midway between these two extremes. Alternate between adjusting the HF and LF potentiometers until the display shows a clear and sharp image. PA 300 Peaking Amplifier • Adjusting the Display...

  • Page 21: Appendix A • Specifications, Part Numbers, And Accessories

    PA 300 A ppendix A Specifications, Part Numbers, and Accessories Specifications Parts...

  • Page 22: Specifications

    0.7 Vp-p for RGB (excluding sync) and for R-Y and B-Y of component video 0.3 Vp-p for C of S-video [excluding sync when gain and peaking potentiometers are set to unity gain (follows input)] PA 300 Peaking Amplifier • Specifications, Parts, Accessories...
  • Page 23 1U, 6" deep rack shelf (RSU 126, #60-190-10; RSB 126, 60-604-10). Furniture mount ....Yes, with optional under-desk mounting kit, part #70-077-01 (MBU 125) or through- desk mounting kit, part #70-077-02 (MBD 129). Enclosure type ....... Metal PA 300 Peaking Amplifier • Specifications, Parts, Accessories...
  • Page 24 Safety ........CE, CUL, UL EMI/EMC ......CE, C-tick, FCC Class A, ICES, VCCI Warranty ......... 3 years parts and labor N All nominal levels are at ±10%. N Specifications are subject to change without notice. PA 300 Peaking Amplifier • Specifications, Parts, Accessories...

  • Page 25: Parts

    Included parts Replacement Part number PA300 60-755-01 IEC power cord Rubber feet (4) PA 300 Peaking Amplifier User's Manual Optional accessories Description Part Number 1U, 9.5" deep Universal Rack Shelf, RSU 129 60-190-01 1U, 9.5" deep Basic Rack Shelf, RSB 129 60-604-01 1U, 6"...
  • Page 26 Specifications, Part Numbers, Accessories, cont’d PA 300 Peaking Amplifier • Specifications, Parts, Accessories...
  • Page 27 Extron’s Warranty Extron Electronics warrants this product against defects in materials and workmanship for a period of three years from the date of purchase. In the event of malfunction during the warranty period attributable directly to faulty workmanship and/or materials, Extron Electronics will, at its option, repair or replace said products or components, to whatever extent it shall deem necessary to restore said product to proper operating condition, provided that it is returned within the warranty period, with proof of...
  • Page 28 Extron USA - West Extron USA - East Extron Europe Extron Asia Extron Japan Extron China Extron Middle East Headquarters +800.633.9876 +800.3987.6673 +800.7339.8766 +81.3.3511.7655 +400.883.1568 +971.4.2991800 +800.633.9876 Inside USA / Canada Only Inside Europe Only Inside Asia Only +81.3.3511.7656 FAX Inside China Only +971.4.2991880 FAX Inside USA / Canada Only...

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