User’s Manual Audio/Video Distribution Amplifiers www.extron.com Extron Electronics, USA 1230 South Lewis Street Anaheim, CA 92805 800.633.9876 714.491.1500 FAX 714.491.1517 Extron Electronics, Europe Beeldschermweg 6C 3821 AH Amersfoort, The Netherlands +800.3987.6673 +31.33.453.4040 FAX +31.33.453.4050 Extron Electronics, Asia 135 Joo Seng Rd. #04-01 PM Industrial Bldg., Singapore 368363 +800.7339.8766 +65.6383.4400 FAX +65.6383.4664 © 2007 Extron Electronics. All rights reserved.
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.
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Quick Start Guide — DA AV EQ Series To install and set up a DA AV EQ Series distribution amplifier, follow these steps: Step 1 Turn all of the equipment off and disconnect it from the power source. Step 2 Mount the DA AV EQ on a rack shelf, under a desktop or podium, or through a desktop. See “Mounting the DA AV EQ Series” in chapter 2, “Installation and Rear Panel,” for mounting procedures. See “Optional Accessories” in appendix A, “Specifications, Parts, and Accessories,” for part numbers.
Quick Start Guide — DA AV EQ Series, cont’d Chapter 1 • Introduction .......................................................... 1-1 Step 4 Connect the cables of the input and output devices to the DA AV EQ, and power on all equipment. • S-video devices are connected to 4-pin mini DIN connectors. • Composite video devices are connected to BNC connectors. Audio devices are connected to captive screw or RCA connectors. Step 5 Adjust the potentiometers (pots) for the output cable lengths, if necessary.
Table of Contents, cont’d DA AV EQ Series 1 Chapter One This page was intentionally left blank.
Introduction About this Manual This manual provides information on the Extron DA AV EQ series of audio/video distribution amplifiers and discusses how to install and operate them. The terms “DA,” “amplifier,” and “distribution amplifier” are used interchangeably to refer to any of the models in the DA AV EQ series. About the DA AV EQ Series The Extron DA AV EQ Series products are high-performance composite video or S-video distribution amplifiers with audio.
Introduction, cont’d DA AV EQ Series Application diagrams The connection diagrams below show examples of how devices may be connected to the DA AV EQ Series distribution amplifiers. VCR 6' Cables DVD DA UTS TP OU L IN T PU L 1 2 R 3 4 R L 5 Q VE 6A R R L 6 R Sound Systems L R 100' Cables L UTS TP OU 5 6 3 IN T PU 1 A 0.
Installation and Rear Panel Mounting the DA AV EQ Series The DA AV EQ distribution amplifiers can be set on a table; mounted on a rack shelf; or mounted through or under a desk, podium, or tabletop. 3. Mechanical loading — Mount the equipment in the rack so that a hazardous condition is not achieved due to uneven mechanical loading. 4. Circuit overloading — Connect the equipment to the supply circuit and consider the effect that circuit overloading might have on overcurrent protection and supply wiring.
Installation and Rear Panel, cont’d To mount the DA AV EQ under a desk, podium, or table top, 1U Universal Rack Shelf 1/2 Rack Width Front False Faceplate Front false faceplate uses 2 screws. 1. If rubber feet were previously attached to the bottom of the unit, remove them. 2. Remove the two screws from one side of the unit. Retain the screws for possible later reassembly. 3. Attach one bracket to the side of the unit, using the provided machine screws. 4.
Installation and Rear Panel, cont’d Through-desk mounting Mount the DA AV EQ through a desk or table, using the optional through-desk mounting kit (part #70-077-02). c. Tighten the screws. d. Replace the DA inside the surface (repeat step 4). Rear Panel Features and Cabling The following diagrams show the rear panel configurations of the 10 models in the DA AV EQ series. 12 0.
Installation and Rear Panel, cont’d 13 1 100-240V 3 5 HIGH Z 75 Ohm LOOP-THRU 50/60 Hz 4 6 7 1 3 4 5 6 7 8 2 5 6 12 DA 8V/4V Dual EQ rear panel 1 3 5 L 75 Ohm 2 4 12 OUTPUTS INPUT R L 1 R L 3 R L L 2 R L 4 R L 5 DA 6SVA EQ OUTPUTS INPUT HIGH Z R 6 R 100-240V INPUT A 0.2A OUTPUTS 6 LOOP-THRU 50/60 Hz 2 or 13 0.2A Dual 1x4 INPUT B DA 6SV EQ rear panel 100-240V 1 1x8 LOOPTHRU 50/60 Hz 4 3 1 2 OUTPUTS INPUT A 0.
Installation and Rear Panel, cont’d 2 Passive Loop-Thru connector (composite video) — (All models except DA 6A and the three S-video models) Connect a monitor to this female BNC video loop-through connector. 9 This connector functions as an input on the DA 12V/6V and 8V/4V Dual EQ models when they are operating in Dual mode. 3 4 Tip Dual mode toggle switch — (DA 12V/6V Dual EQ and DA 8V/4V Dual EQ only) Use this switch to toggle between operating modes.
Installation and Rear Panel, cont’d Setting the Audio Output Gain On the DA 6SVA EQ, DA 6AV EQ, and DA 6A audio models, you can set the gain for the left and right channels independently. This applies only to models with captive screw audio connectors. On the internal board, each audio output has a set of jumpers (one left and one right).
Installation and Rear Panel, cont’d The following table shows the resulting gain levels for each possible jumper position and balanced/unbalanced wiring combination. Jumper Position Output Wiring Balanced Unbalanced Balanced (Jumper on right and middle pin) DA AV EQ Series Unbalanced (Jumper on left and middle pin) 0 dB +6 dB -6 dB 0 dB For example, if you wire output 1 as an unbalanced audio and you place the jumpers for both channels on the left and middle pins, the gain is 0 dB.
Front Panel Features and Operation Front Panel Features The following diagrams show the five different front panel configurations of the DA AV EQ series.
Front Panel Features and Operation, cont’d Gain and Equalization Controls • To set up your DA AV EQ, you may need to adjust the gain and equalization (EQ) for the output cable lengths. Gain and EQ are adjusted from the front panel of all DA AV EQ series products except the DA 6A and DA 3AV RCA. On S-video models, you can adjust luma (Y) gain and equalization, and chroma (C) gain. On composite video models, you can adjust Gain and EQ. Adjustments are made for each pair of outputs.
Front Panel Features and Operation, cont’d Adjusting for long cables DA AV EQ Series If you are using long cables, you need to adjust the Gain and EQ potentiometers (pots) until you have the best picture quality. Using an oscilloscope is recommended; however, you can make these adjustments without one. Both methods are described below. Adjusting with an oscilloscope 1. Feed a grayscale signal from an Extron VTG 300/400 or other A/V test generator to the input of the DA AV EQ. 2.
Specifications, Parts, and Accessories Specifications Video Gain (all models except DA 6A and DA 3AV RCA) Video and Y ...................... -1 dB to +3 dB (x 0.9 to x 1.4), adjustable per every 2 outputs C (chroma) ........................ 0 dB to +10 dB (x 1 to x 3), adjustable for DA 6SV EQ, DA 6SVA EQ, and DA 6SVA RCA EQ Equalization (all models except DA 6A and DA 3AV RCA) 0 dB to +6 dB (x 1 to x 2) at 5 MHz, adjustable per every 2 outputs Bandwidth ....................................
Specifications, Parts, and Accessories, cont’d Audio output Audio Gain ............................................... Unity when internal jumpers are set to match output wiring. See table below for other conditions. Jumper Balanced Position (Jumper on right Output and middle pin) Wiring Balanced 0 dB Unbalanced -6 dB Unbalanced (Jumper on left and middle pin) +6 dB 0 dB Frequency response ..................... 20 Hz to 20 kHz, ±0.08 dB (with voltage reference @ 1 kHz) THD + Noise ......................
Specifications, Parts, and 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 22.1 cm W x 15.2 cm D (Depth excludes connectors.) Cooling .......................................... Convection, unvented Product weight ............................. 2 lbs (0.9 kg) Shipping weight ........................... 4 lbs (2 kg) Vibration ....................................... ISTA 1A in carton (International Safe Transit Association) Listings ......
Specifications, Parts, and Accessories, cont’d Cables The following cables can be ordered as needed: Cable MHR-2 SVM-M Male to Male 4-pin Mini DIN S-Video Cables (S-video models only) 26-316-xx MHR-2P SVM-M Male to Male 4-pin Mini DIN S-Video cables, plenum (S-video models only) 26-522-xx RG6 BNC Series BNC Male to Male Single Conductor SHR cables 26-383-xx CSR 6 Captive Screw to RCA Female Audio Adapter (audio models only) 26-575-01 RCA Male to Male Stereo Audio cable (audio models only) A-8 Par
