Extron electronic PA 300 User Manual

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User’s Manual

www.extron.com

Extron Electronics, USA

1230 South Lewis Street Anaheim, CA 92805 USA

714.491.1500 Fax 714.491.1517

Extron Electronics, Europe

Beeldschermweg 6C 3821 AH Amersfoort The Netherlands +31.33.453.4040 Fax +31.33.453.4050

Extron Electronics, Asia

135 Joo Seng Road, #04-01 PM Industrial Building Singapore 368363 +65.6383.4400 Fax +65.6383.4664

Extron Electronics, Japan

Kyodo Building 16 Ichibancho Chiyoda-ku, Tokyo 102-0082 Japan +81.3.3511.7655 Fax +81.3.3511.7656

PA 300

Peaking Ampliﬁ er

68-1108-01 A

07 06

Precautions

Safety Instructions • English

This symbol is intended to alert the user of important operating and maintenance (servicing) instructions in 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.

Caution

Read Instructions • Read and understand all safety and operating

instructions before using the equipment.

Retain Instructions • The safety instructions should be kept for future

reference.

Follow Warnings • Follow all warnings and instructions marked on the

equipment or in the user information.

Avoid Attachments • Do not use tools or attachments that are not

recommended by the equipment manufacturer because they may be hazardous.

Consignes de Sécurité • Français

Ce symbole sert à avertir l’utilisateur que la documentation fournie avec le matériel contient des instructions importantes concernant l’exploitation et la maintenance (réparation).

Ce symbole sert à avertir l’utilisateur de la présence dans le boîtier de l’appareil de tensions dangereuses non isolées posant des risques d’électrocution.

Attention

Lire les instructions• Prendre connaissance de toutes les consignes de

sécurité et d’exploitation avant d’utiliser le matériel.

Conserver les instructions• Ranger les consignes de sécurité aﬁ n de pouvoir

les consulter à l’avenir.

Respecter les avertissements • Observer tous les avertissements et consignes

marqués sur le matériel ou présentés dans la documentation utilisateur.

Eviter les pièces de ﬁ xation • Ne pas utiliser de pièces de ﬁ xation ni d’outils

non recommandés par le fabricant du matériel car cela risquerait de poser certains dangers.

Sicherheitsanleitungen • Deutsch

Dieses Symbol soll dem Benutzer in der im Lieferumfang enthaltenen Dokumentation besonders wichtige Hinweise zur Bedienung und Wartung (Instandhaltung) geben.

Dieses Symbol soll den Benutzer darauf aufmerksam machen, daß im Inneren des Gehäuses dieses Produktes gefährliche Spannungen, die nicht isoliert sind und die einen elektrischen Schock verursachen können, herrschen.

Achtung

Lesen der Anleitungen • Bevor Sie das Gerät zum ersten Mal verwenden,

sollten Sie alle Sicherheits-und Bedienungsanleitungen genau durchlesen und verstehen.

Aufbewahren der Anleitungen • Die Hinweise zur elektrischen Sicherheit

des Produktes sollten Sie aufbewahren, damit Sie im Bedarfsfall darauf zurückgreifen können.

Befolgen der Warnhinweise • Befolgen Sie alle Warnhinweise und

Anleitungen auf dem Gerät oder in der Benutzerdokumentation.

Keine Zusatzgeräte • Verwenden Sie keine Werkzeuge oder Zusatzgeräte,

die nicht ausdrücklich vom Hersteller empfohlen wurden, da diese eine Gefahrenquelle darstellen können.

Instrucciones de seguridad • Español

Este símbolo se utiliza para advertir al usuario sobre instrucciones importantes de operación y mantenimiento (o cambio de partes) que se desean destacar en el contenido de la documentación suministrada con los equipos.

Este símbolo se utiliza para advertir al usuario sobre la presencia de elementos con voltaje peligroso sin protección aislante, que puedan encontrarse dentro de la caja o alojamiento del producto, y que puedan representar riesgo de electrocución.

Precaucion

Leer las instrucciones • Leer y analizar todas las instrucciones de operación y

seguridad, antes de usar el equipo.

Conservar las instrucciones • Conservar las instrucciones de seguridad para

futura consulta.

Obedecer las advertencias • Todas las advertencias e instrucciones marcadas

en el equipo o en la documentación del usuario, deben ser obedecidas.

Evitar el uso de accesorios • No usar herramientas o accesorios que no

sean especiﬁ camente recomendados por el fabricante, ya que podrian implicar riesgos.

Warning

Power sources • This equipment should be operated only from the power source

indicated on the product. This equipment is intended to be used with a main power system with a grounded (neutral) conductor. The third (grounding) pin is a safety feature, do not attempt to bypass or disable it.

Power disconnection • To remove power from the equipment safely, remove all power

cords from the rear of the equipment, or the desktop power module (if detachable), or from the power source receptacle (wall plug).

Power cord protection • Power cords should be routed so that they are not likely to be

stepped on or pinched by items placed upon or against them.

Servicing • Refer all servicing to qualiﬁ ed service personnel. There are no user-

serviceable parts inside. To prevent the risk of shock, do not attempt to service this equipment yourself because opening or removing covers may expose you to dangerous voltage or other hazards.

Slots and openings • If the equipment has slots or holes in the enclosure, these are

provided to prevent overheating of sensitive components inside. These openings must never be blocked by other objects.

Lithium battery • There is a danger of explosion if battery is incorrectly

replaced. Replace it only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer’s instructions.

Avertissement

Alimentations• Ne faire fonctionner ce matériel qu’avec la source d’alimentation

indiquée sur l’appareil. Ce matériel doit être utilisé avec une alimentation principale comportant un ﬁ l de terre (neutre). Le troisième contact (de mise à la terre) constitue un dispositif de sécurité : n’essayez pas de la contourner ni de la désactiver.

Déconnexion de l’alimentation• Pour mettre le matériel hors tension sans danger,

déconnectez tous les cordons d’alimentation de l’arrière de l’appareil ou du module d’alimentation de bureau (s’il est amovible) ou encore de la prise secteur.

Protection du cordon d’alimentation • Acheminer les cordons d’alimentation de

manière à ce que personne ne risque de marcher dessus et à ce qu’ils ne soient pas écrasés ou pincés par des objets.

Réparation-maintenance • Faire exécuter toutes les interventions de réparation-

maintenance par un technicien qualiﬁ é. Aucun des éléments internes ne peut être réparé par l’utilisateur. Aﬁ n d’éviter tout danger d’électrocution, l’utilisateur ne doit pas essayer de procéder lui-même à ces opérations car l’ouverture ou le retrait des couvercles risquent de l’exposer à de hautes tensions et autres dangers.

Fentes et oriﬁ ces • Si le boîtier de l’appareil comporte des fentes ou des oriﬁ ces, ceux-ci

servent à empêcher les composants internes sensibles de surchauffer. Ces ouvertures ne doivent jamais être bloquées par des objets.

Lithium Batterie • Il a danger d’explosion s’ll y a remplacment incorrect de la batterie.

Remplacer uniquement avec une batterie du meme type ou d’un ype equivalent recommande par le constructeur. Mettre au reut les batteries usagees conformement aux instructions du fabricant.

Vorsicht

Stromquellen • Dieses Gerät sollte nur über die auf dem Produkt angegebene

Stromquelle betrieben werden. Dieses Gerät wurde für eine Verwendung mit einer Hauptstromleitung mit einem geerdeten (neutralen) Leiter konzipiert. Der dritte Kontakt ist für einen Erdanschluß, und stellt eine Sicherheitsfunktion dar. Diese sollte nicht umgangen oder außer Betrieb gesetzt werden.

Stromunterbrechung • Um das Gerät auf sichere Weise vom Netz zu trennen, sollten

Sie alle Netzkabel aus der Rückseite des Gerätes, aus der externen Stomversorgung (falls dies möglich ist) oder aus der Wandsteckdose ziehen.

Schutz des Netzkabels • Netzkabel sollten stets so verlegt werden, daß sie nicht im

Weg liegen und niemand darauf treten kann oder Objekte darauf- oder unmittelbar dagegengestellt werden können.

Wartung • Alle Wartungsmaßnahmen sollten nur von qualiﬁ ziertem Servicepersonal

durchgeführt werden. Die internen Komponenten des Gerätes sind wartungsfrei. Zur Vermeidung eines elektrischen Schocks versuchen Sie in keinem Fall, dieses Gerät selbst öffnen, da beim Entfernen der Abdeckungen die Gefahr eines elektrischen Schlags und/oder andere Gefahren bestehen.

Schlitze und Öffnungen • Wenn das Gerät Schlitze oder Löcher im Gehäuse aufweist,

dienen diese zur Vermeidung einer Überhitzung der empﬁ ndlichen Teile im Inneren. Diese Öffnungen dürfen niemals von anderen Objekten blockiert werden.

Litium-Batterie • Explosionsgefahr, falls die Batterie nicht richtig ersetzt

wird. Ersetzen Sie verbrauchte Batterien nur durch den gleichen oder einen vergleichbaren Batterietyp, der auch vom Hersteller empfohlen wird. Entsorgen Sie verbrauchte Batterien bitte gemäß den Herstelleranweisungen.

Advertencia

Alimentación eléctrica • Este equipo debe conectarse únicamente a la fuente/tipo

de alimentación eléctrica indicada en el mismo. La alimentación eléctrica de este equipo debe provenir de un sistema de distribución general con conductor neutro a tierra. La tercera pata (puesta a tierra) es una medida de seguridad, no puentearia ni eliminaria.

Desconexión de alimentación eléctrica • Para desconectar con seguridad la acometida

de alimentación eléctrica al equipo, desenchufar todos los cables de alimentación en el panel trasero del equipo, o desenchufar el módulo de alimentación (si fuera independiente), o desenchufar el cable del receptáculo de la pared.

Protección del cables de alimentación • Los cables de alimentación eléctrica se deben

instalar en lugares donde no sean pisados ni apretados por objetos que se puedan apoyar sobre ellos.

Reparaciones/mantenimiento • Solicitar siempre los servicios técnicos de personal

caliﬁ cado. En el interior no hay partes a las que el usuario deba acceder. Para evitar riesgo de electrocución, no intentar personalmente la reparación/mantenimiento de este equipo, ya que al abrir o extraer las tapas puede quedar expuesto a voltajes peligrosos u otros riesgos.

Ranuras y aberturas • Si el equipo posee ranuras o oriﬁ cios en su caja/alojamiento,

es para evitar el sobrecalientamiento de componentes internos sensibles. Estas aberturas nunca se deben obstruir con otros objetos.

Batería de litio • Existe riesgo de explosión si esta batería se coloca en la posición

incorrecta. Cambiar esta batería únicamente con el mismo tipo (o su equivalente) recomendado por el fabricante. Desachar las baterías usadas siguiendo las instrucciones del fabricante.

FCC Class A Notice

Note: 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. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case the user will be required to correct the interference at his own expense.

Note: This unit was tested with shielded cables on the peripheral devices. Shielded cables must be used with the unit to ensure compliance.

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 purchase and description of malfunction to:

USA, Canada, South America, Europe, Africa, and the Middle East: and Central America: Extron Electronics, Europe

Extron Electronics Beeldschermweg 6C 1001 East Ball Road 3821 AH Amersfoort Anaheim, CA 92805, USA The Netherlands

Asia: Japan:

Extron Electronics, Asia Extron Electronics, Japan 135 Joo Seng Road, #04-01 Kyodo Building PM Industrial Bldg. 16 Ichibancho Singapore 368363 Chiyoda-ku, Tokyo 102-0082 Japan

This Limited Warranty does not apply if the fault has been caused by misuse, improper handling care, electrical or mechanical abuse, abnormal operating conditions or nonExtron authorized modiﬁ cation to the product.

If it has been determined that the product is defective, please call Extron and ask for an Applications Engineer at (714) 491-1500 (USA), 31.33.453.4040 (Europe), 65.6383.4400 (Asia), or 81.3.3511.7655 (Japan) to receive an RA# (Return Authorization number). This will begin the repair process as quickly as possible.

Units must be returned insured, with shipping charges prepaid. If not insured, you assume the risk of loss or damage during shipment. Returned units must include the serial number and a description of the problem, as well as the name of the person to contact in case there are any questions.

Extron Electronics makes no further warranties either expressed or implied with respect to the product and its quality, performance, merchantability, or ﬁ tness for any particular use. In no event will Extron Electronics be liable for direct, indirect, or consequential damages resulting from any defect in this product even if Extron Electronics has been advised of such damage.

Please note that laws vary from state to state and country to country, and that some provisions of this warranty may not apply to you.

安全须知 • 中文

这个符号提示用户该设备用户手册中

这个符号提示用户该设备用户手册中有重要的操作和维护说明。

有重要的操作和维护说明。

这个符号警告用户该设备机壳内有暴

露的危险电压，有触电危险。

注意

阅读说明书 • 用户使用该设备前必须阅读并理

解所有安全和使用说明。

保存说明书 • 用户应保存安全说明书以备将来使

用。

遵守警告 • 用户应遵守产品和用户指南上的所有安

全和操作说明。

避免追加 • 不要使用该产品厂商没有推荐的工具或

追加设备，以避免危险。

警告

电源 • 该设备只能使用产品上标明的电源。设备

必须使用有地线的供电系统供电。第三条线

必须使用有地线的供电系统供电。第三条线（地线）是安全设施，不能不用或跳过。

（地线）是安全设施，不能不用或跳过。

拔掉电源 • 为安全地从设备拔掉电源，请拔掉所有设备后

或桌面电源的电源线，或任何接到市电系统的电源线。

电源线保护 • 妥善布线，避免被踩踏，或重物挤压。

电源线保护 • 妥善布线，避免被踩踏，或重物挤压。维护 • 所有维修必须由认证的维修人员进行。设备内部没

维护 • 所有维修必须由认证的维修人员进行。设备内部没

有用户可以更换的零件。为避免出现触电危险不要自己

有用户可以更换的零件。为避免出现触电危险不要自己试图打开设备盖子维修该设备。

试图打开设备盖子维修该设备。

通风孔 • 有些设备机壳上有通风槽或孔，它们是用来防止

机内敏感元件过热。不要用任何东西挡住通风孔。

锂电池 • 不正确的更换电池会有爆炸的危险。必须使用与

厂家推荐的相同或相近型号的电池。按照生产厂的建

厂家推荐的相同或相近型号的电池。按照生产厂的建议处理废弃电池。

议处理废弃电池。

Table of Contents

Chapter One • Introduction ................................................... 1-1

About this Manual .................................................................... 1-2

About the PA 300 ....................................................................... 1-2

Features ........................................................................................ 1-2

Chapter Two • Installation and Operation ................. 2-1

Installation Overview ............................................................... 2-2

Mounting the PA 300 ............................................................... 2-2

Tabletop use ........................................................................... 2-3

Rack mounting ....................................................................... 2-3

Under-desk mounting ............................................................ 2-4

Through-desk mounting ........................................................ 2-5

Front Panel Features ................................................................. 2-6

Rear Panel Features ................................................................... 2-6

Cabling .......................................................................................... 2-7

Chapter Three • Adjusting the Display .......................... 3-1

Signal Compatibility ................................................................. 3-2

Potentiometer Adjustments ................................................... 3-2

Adjusting the gain with an oscilloscope .............................. 3-2

Adjusting the gain without an oscilloscope ........................ 3-2

Adjusting the peaking .......................................................... 3-3

Appendix A • Speciﬁ cations, Part Numbers, and

Accessories .........................................................................................A-1

Speciﬁ cations ..............................................................................A-2

Parts ...............................................................................................A-4

All trademarks mentioned in this manual are the properties of their respective owners.

68-1108-01 A

07 06

PA 300 Peaking Ampliﬁ er • Table of Contents

Table of Contents, cont’d

PA 300

Chapter One

Introduction

About this Manual

About the PA 300

Features

PA 300 Peaking Ampliﬁ er • Table of Contents

Introduction

About this Manual

This manual contains information about the Extron PA 300 peaking ampliﬁ er, and includes information on how to install, operate and troubleshoot the unit.

About the PA 300

The PA 300 is an ultra high performance RGB peaking ampliﬁ er capable of driving a 1600 x 1200 resolution computer signal over 600 feet using Extron Mini HR cables, or 1000 feet using Extron RG6 cable. The PA 300 is compatible with both RGB and HDTV component signals.

The PA 300 has one gain potentiometer and two peaking potentiometers on the front panel. On the rear panel, the PA 300 provides ﬁ ve BNCs for RGBHV output and ﬁ ve BNCs for RGBHV input. 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" deep, 2-piece enclosure, and uses an internal power supply.

Features

Bandwidth — has 350 MHz (-3 dB) RGB video bandwidth, fully

loaded.

Gain and peaking control — allows for optimized output

compensation for various cable lengths and applications.

Light and compact metal enclosure — provides a 1U, half rack,

6" deep, 2-piece enclosure.

Versatile mounting options — can be set on a table; mounted

on a rack shelf; or mounted through or under a desk, podium, or tabletop.

Global accessibility — provides a universal internal power

supply allowing for worldwide usability.

PA 300

Chapter Two

Installation and Operation

Installation Overview

Mounting the PA 300

1-2

Front Panel Features

Rear Panel Features

Cabling

PA 300 Peaking Ampliﬁ er • Introduction

Installation and Operation

Installation Overview

Make sure that the source device, the PA 300, and the

output device are turned off and disconnected from the power source.

If desired, mount the PA 300 in a rack or furniture. See

Mounting the PA 300 below.

Cable the inputs and outputs to the PA 300. See Cabling on

page 2-7.

Plug the input device, the PA 300, and the output device

into a grounded AC source.

Turn on the input and output devices.

Mounting the PA 300

The PA 300 peaking ampliﬁ er can be set on a table; mounted on a rack shelf; or mounted through or under a desk, podium, or tabletop.

The following kits are available for mounting the PA 300:

• RSB 129 1U, 9.5" deep basic rack shelf (Extron part #60-604-01)

• RSU 129 1U, 9.5" deep universal rack shelf kit (part #60-190-01)

• RSB 126 1U, 6" deep basic rack shelf (part #60-604-10)

• RSU 126 1U, 6" deep universal rack shelf kit (part #60-190-10)

MBU 125 Under-desk mounting kit

•

(part #70-077-01) MBD 129 Thru-desk mounting kit

•

(part #70-077-02)

The following sections provide instructions for these options.

Tabletop use

Four self-adhesive rubber feet are included with the PA 300. For tabletop use, afﬁ x one foot at each corner of the bottom side of the unit and place the unit in the desired location.

Rack mounting

For optional rack mounting, do not install the rubber feet. Mount the PA 300 on a half-rack width, 6" deep, 1U high rack shelf (Extron part #60-190-10 or 60-604-10) or a standard 19-inch wide 1U rack shelf (part #60-190-01 or 60-604-01).

1. Remove the rubber feet if they were previously installed

on the bottom of the unit.

2. Mount the unit on the rack shelf, using two 4-40 x 3/16"

screws in opposite (diagonal) corners to secure it.

3. Install blank panel(s) or other unit(s) on the rack shelf.

4. Attach the rack shelf to the rack using the supplied bolts.

Front false faceplate uses 2 screws.

Mounting the PA 300 on a 6-inch deep rack shelf

6" Deep Rack Shelf

Use 2 mounting holes on opposite corners.

1/2 Rack Width Front False Faceplate

(2) 4-40 x 3/16" Screws

2-2 2-3

PA 300 Peaking Ampliﬁ er • Installation and Operation

Installation and Operation, cont’d

1U Universal Rack Shelf

Front false faceplate uses 2 screws.

Mounting the PA 300 on a universal rack shelf

Under-desk mounting

Furniture-mount (under a desk or shelf) the PA 300 using the Extron optional mounting kit (part #70-077-01), as illustrated below.

1/2 Rack Width Front False Faceplate

Use 2 mounting holes on opposite corners.

(2) 4-40 x 3/16" Screws

NOTE: Using screws longer

than 3/16” will damage the unit and void the warranty.

Drill pilot holes 1/4" (6.4 mm) deep and 3/32" (2 mm) in diameter in the desk or table at the locations of the mounting bracket screws. The holes should be drilled from the underside or inside (concealed side) of the furniture, where the ampliﬁ er will be located.

Through-desk mounting

Mount the PA 300 through a desk or table, using the optional mounting kit (part #70-077-02), as illustrated below.

2-4

Under-desk mounting the PA 300

PA 300 Peaking Ampliﬁ er • Installation and Operation

Through-desk mounting the PA 300

1. Mark the opening through which the unit will be mounted

to 1.8" by 8.9" (4.6 cm by 22.6 cm).

2. Cut out the material from the installation area with a

jigsaw.

3. Drill pilot holes 1/4" (6.4 mm) deep and 3/32" (2 mm)

in diameter in the desk or table at the locations of the mounting bracket screws. The holes should be drilled from the underside or inside (concealed side) of the furniture, where the ampliﬁ er will be located.

PA 300 Peaking Ampliﬁ er • Installation and Operation

2-5

Installation and Operation, cont’d

Front Panel Features

GAIN

Power LED — Lights when the PA 300 is receiving power.

Gain control — Adjusts the amount of compensation for

amplitude losses caused by cable resistance.

Peaking control — Provides optimum compensation via

separate high and low frequency controls.

LF — Provides adjustment to minimize image streaking.

HF — Provides adjustment for achieving the best image detail.

Rear Panel Features

100-240V .3A

50/60 Hz

AC power input connector — Attach a standard IEC power

cord (100 VAC to 240 VAC, 50 or 60 Hz).

Input BNC connectors — Attach to the input device.

Output BNC connectors — Attach to the output device.

RG BH/HVV

PEAKING

INPUT OUTPUT

RG BH/HVV

PA 300

PEAKING AMPLIFIER

PA 300

Cabling

The PA 300 is speciﬁ cally designed for long cable run applications. For best results, install the ampliﬁ er close to the signal source and drive a long cable to the display.

The input of the PA 300 is on BNC connectors. If the source output uses a 15-pin HD connector, use an Extron SYM BNCM cable (Extron part #26-533-xx) to make the connection. See the illustration below.

RGBHV

VGA

RGBS

RGsB, RsGsBs, Component

S-Video

Composite

To make input and output connections to other devices, do the following:

1. Turn off the PC and the local monitor.

2. Connect the source RGB output to the PA 300 input.

3. Connect the RGB display device to the PA 300 output.

4. Turn on the source display devices and then the PA 300.

5. Adjust the front panel potentiometers to achieve the

optimal image quality for your display. See chapter 3, Adjusting the Display, for detailed instructions.

2-6

PA 300 Peaking Ampliﬁ er • Installation and Operation

2-7

Installation and Operation, cont’d

H 0 6

5 0V 4

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5 3 . 0

S UT P

Extron CrossPoint 300 84 HV

Matrix Switcher

Extron PA 300

Peaking Amplifier

S UT P

T OU

T E

E R

LAN

YNC S V

YN S H

Up to 600' MHR or 1000’ RG6 cable (1600 x 1200 signal)

Projector

Chapter Three

PA 300

2-8

Adjusting the Display

Signal Compatibility

Potentiometer Adjustments

PA 300 Peaking Ampliﬁ er • Installation and Operation

Adjusting the Display

Signal Compatibility

The PA 300 processes VGA-UXGA, RGBHV, RGBS, RGBsB, RsGsBs, HDTV, and component video signals.

Potentiometer Adjustments

The PA 300 achieves its superior ampliﬁ cation by using two independent peaking potentiometers: LF for streaking adjustment and HF for detail adjustment.

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

The most accurate adjustment method for the gain uses an oscilloscope, but you can also adjust by observation. The following instructions explain how to adjust the gain with and without the use of an oscilloscope. An oscilloscope is not necessary for the peaking adjustment.

Adjusting the gain with an oscilloscope

To adjust the Gain potentiometer, do the following:

1. Remove the cable from your source and attach a VTG 300

to this cable.

2. Use the White Field test pattern for the VTG 300 setting.

3. Remove the far end of the cable from your projector and

attach the oscilloscope using 75 ohm termination.

4. Use an Extron Tweeker to adjust the Gain potentiometer

until you have a 0.7 Vp-p reading from the white top to the black bottom of the scope.

5. Once the gain is successfully adjusted, replace the source

and display cables.

6. See Adjusting the peaking on the following page.

Adjusting the peaking

To adjust the Peaking potentiometers, do the following:

1. Using MS Paint and a spreadsheet, create a testing image

on your PC desktop that includes squares, lines, text, and gradations of color.

2. 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.

Use the illustration below as a guide.

Adjusting the gain without an oscilloscope

Use an Extron Tweeker to turn the Gain potentiometer until the image reaches the desired level of brightness.

3-2 3-3

PA 300 Peaking Ampliﬁ er • Adjusting the Display

Adjusting the Display, cont’d

When the LF is under adjusted, the streaking is the inverse

color of the image, as shown below.

The potentiometer should be adjusted between these two

extremes.

3. Adjust the HF potentiometer until both text and icon

images appear sharp. When the HF is over adjusted, ghosting may appear, as illustrated below.

When the HF is under adjusted, smearing may appear, as

shown below.

PA 300

Appendix A

3-4

The potentiometer should be adjusted between these two

extremes.

4. Alternate between adjusting the HF and LF potentiometers

until the display shows a clear and sharp image.

PA 300 Peaking Ampliﬁ er • Adjusting the Display

Speciﬁ cations, Part Numbers,

and Accessories

Speciﬁ cations

Parts

Speciﬁ cations, Part Numbers, Accessories, cont’d

Speciﬁ cations

Video

Gain ................................................ -2.5 to +3.5 dB (x0.75 to x1.4), adjustable;

default = 0 dB Peaking/equalization

Low frequency ............................... 0 to 4 dB at 10 MHz, adjustable

High frequency .............................. 0 to 15 dB at 120 MHz, adjustable

Bandwidth ..................................... 350 MHz (-3 dB)

Output cable driving distance ..... Up to 600’ (185 m) with Extron

Mini HR cable. Up to 1000’ (300 m) with

Extron RG6 or RG 59 cable (tested with a

1600x1200, 60 Hz computer video signal)

Video input

Number/signal type .................... 1 analog RGBHV, RGBS, RGsB, RsGsBs

Connectors .................................... 5 female BNC

Nominal level ................................ 0.7 Vp-p for RGB excluding sync

Minimum/maximum levels ........ Analog: 0.4 V to 2.0 Vp-p with no offset at

unity gain

Impedance ..................................... 75 ohms

Horizontal frequency .................... 15 kHz to 150 kHz

Vertical frequency .......................... 40 Hz to 140 Hz

Return loss ..................................... -30 dB @ 0 to 5 MHz

DC offset (max. allowable)........... 1 V

Video output

Number/signal type ..................... 1 analog RGBHV, RGBS, RGsB

Connectors .................................... 5 BNC female

Nominal level ................................ 0.7 Vp-p for RGB excluding sync when

gain and peaking potentiometers are set

to unity gain (follows input)

Minimum/maximum levels ........ Analog: 0.4 V to 2.0 Vp-p

Impedance ..................................... 75 ohms

Return loss ..................................... -32 dB @ 5 MHz

DC offset ........................................ ±6 mV with input at 0 offset

Sync

Input type ...................................... RGBHV, RGBS, RGsB, RsGsBs

Output type .................................... RGBHV, RGBS, RGsB, RsGsBs

Input level

RGBHV, RGBS ................... TTL: 1.8 V to 5.0 Vp-p

RGsB, RsGsBs .................... Analog: 0.3 Vp-p

Output level

RGBHV, RGBS ................... TTL: 5.0 Vp-p, unterminated

RGsB, RsGsBs .................... Analog: 0.3 Vp-p, follows input

Input impedance .......................... 510 ohms

Output impedance ....................... 50 ohms

Max. propagation delay ............... H: 50 ns V: 110 ns

Max. rise/fall time ........................ H: <3 ns V: <3 ns

Polarity............................................ RGBHV, RGBS: positive or negative

(follows input) RGsB, RsGsBs: negative

General

Power ............................................. 100 VAC to 240 VAC, 50/60 Hz, 3.6 watts,

internal, autoswitchable

Temperature/humidity ................ Storage: -40 to +158 °F (-40 to +70 °C) /

10% to 90%, noncondensing Operating: +32 to +122 °F (0 to +50 °C) / 10% to 90%, noncondensing

Rack mount .................................... Yes, with optional 1U rack shelf, part

#60-190-01 or 60-604-01; or optional 1U, 6'' deep rack shelf, part #60-190-10 or 60-604-10. Also furniture mountable with optional under-desk (#70-077-01) and

through-desk (#70-077-02) mounting kits.

Enclosure type .............................. Metal

Enclosure dimensions .................. 1.7'' H x 8.7'' W x 6.0'' D

(1U high, half rack wide)

4.3 cm H x 22.1 cm W x 15.2 cm D

(Depth excludes connectors.)

Product weight .............................. 1.5 lbs (0.7 kg)

Shipping weight ........................... 3 lbs (2 kg)

Vibration ........................................ ISTA 1A in carton (International Safe

Transit Association)

Listings............................................ UL, CUL

Compliances ................................... CE, FCC Class A, VCCI, AS/NZS, ICES

MTBF ............................................... 30,000 hours

Warranty ........................................ 3 years parts and labor

OTAll nominal levels are at ±10%.

OTSpeciﬁ cations are subject to change without notice.

A-2 A-3

PA 300 Peaking Ampliﬁ er • Speciﬁ cations, Parts, Accessories

Speciﬁ cations, Part Numbers, Accessories, cont’d

Parts

Included parts

Included Parts Replacement

PA 300 60-755-01 IEC power cord Rubber feet (4) PA 300 Peaking Ampliﬁ er User’s Manual

Optional accessories

Accessories Part number

RSB 129 1U, 9.5" Deep Basic Rack Shelf 60-604-01 RSU 129 1U, 9.5" Deep Universal Rack Shelf Kit 60-190-01 RSB 126 1U, 6" Deep Basic Rack Shelf 60-604-10 RSU 126 1U, 6" Deep Universal Rack Shelf Kit 60-190-10 MBU 125 Under-Desk Mounting Kit 70-077-01 MBD 129 Through-Desk Mounting Kit 70-077-02

part number

A-4

Cables

BNC cables Part number

MHR-5 BNC 3', 6', 12', 25', 35', 50', 75', 100' 26-260-xx MHR-5P BNC 3', 6', 12', 25', 35', 50', 75', 100' 26-378-xx M59-5 BNC 3', 6', 12', 25', 35', 50', 75', 100' 26-499-xx RG6-5 BNC 3', 6', 12', 25', 35', 50', 75', 100' 26-369-xx SYM BNCM 6'', 1', 3', 6', 12', 25', 50', 75', 100' 26-533-xx

PA 300 Peaking Ampliﬁ er • Speciﬁ cations, Parts, Accessories

Extron electronic PA 300 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual