User’s Manual PA 300 Peaking Amplifier www.extron.com Extron Electronics, USA Extron Electronics, Europe Extron Electronics, Asia Extron Electronics, Japan 1230 South Lewis Street Anaheim, CA 92805 USA 714.491.1500 Fax 714.491.1517 Beeldschermweg 6C 3821 AH Amersfoort The Netherlands +31.33.453.4040 Fax +31.33.453.4050 135 Joo Seng Road, #04-01 PM Industrial Building Singapore 368363 +65.6383.4400 Fax +65.6383.4664 Kyodo Building 16 Ichibancho Chiyoda-ku, Tokyo 102-0082 Japan +81.3.3511.
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.
安全须知 • 中文 警告 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。 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 （地线）是安全设施，不能不用或跳过。 这个符号警告用户该设备机壳内有暴 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。 露的危险电压，有触电危险。 电源线保护 • 妥善布线， 避免被踩踏，或重物挤压。 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。 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 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。
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 ...................................
Table of Contents, cont’d PA 300 1 Chapter One Introduction About this Manual About the PA 300 Features ii PA 300 Peaking Amplifier • Table of Contents
Introduction About this Manual This manual contains information about the Extron PA 300 peaking amplifier, 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 amplifier 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.
Installation and Operation Installation Overview 1 Make sure that the source device, the PA 300, and the output device are turned off and disconnected from the power source. 2 If desired, mount the PA 300 in a rack or furniture. See Mounting the PA 300 below. Tabletop use Four self-adhesive rubber feet are included with the PA 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.
Installation and Operation, cont’d 1U Universal Rack Shelf 1/2 Rack Width Front False Faceplate 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 amplifier 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.
Installation and Operation, cont’d Cabling Front Panel Features GAIN The PA 300 is specifically designed for long cable run applications. For best results, install the amplifier close to the signal source and drive a long cable to the display. PEAKING LF HF PA 300 PEAKING AMPLIFIER 1 2 3 a b Power LED — Lights when the PA 300 is receiving power. c Peaking control — Provides optimum compensation via separate high and low frequency controls. The input of the PA 300 is on BNC connectors.
Installation and Operation, cont’d PA 300 Extron PA 300 Peaking Amplifier TP OU UT 4 Up to 600' MHR or 1000’ RG6 cable (1600 x 1200 signal) 2 INPU T z 60H 50-24 100 0V 0.
Adjusting the Display Signal Compatibility The PA 300 processes VGA-UXGA, RGBHV, RGBS, RGBsB, RsGsBs, HDTV, and component video signals. 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. Use the illustration below as a guide. 2. Adjust the LF (low frequency) potentiometer until the image is free of streaking.
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. PA 300 A Appendix A When the HF is under adjusted, smearing may appear, as shown below. The potentiometer should be adjusted between these two extremes. 4.
Specifications, Part Numbers, Accessories, cont’d Specifications 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.
Specifications, Part Numbers, Accessories, cont’d Parts Included parts Included Parts Replacement part number PA 300 60-755-01 IEC power cord Rubber feet (4) PA 300 Peaking Amplifier User’s Manual Optional accessories Accessories Part number RSB 129 1U, 9.5" Deep Basic Rack Shelf 60-604-01 RSU 129 1U, 9.
