Instruction/ maintenance manual of the product EC-2 Alesis
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EC-2 96kHz Sample Rate Upgrade A/D and D/A Converter Cards for the ADAT HD24 Hard Disk Recorder O WNER ’ S M ANUAL V ERSION 1.0 A PPLIES TO ADAT HD24 SOFTWARE V ERSION 1.
EC-2 96kHz A/D/D/A upgrade • appendix A EC-2 Manual © 2002 Alesis. All rights reserved. Reproduction in whole or in part is prohibited. Specifications Subject To Change Without Notice.
appendix A EC-2 Manual A-1 EC-2 96kHz Upgrade Cards This document covers only those aspects unique to the EC-2 cards and should be kept with the HD24 manual. Table of Contents Important Safety Instructions ................................ 2 Safety symbols used in this product .
EC-2 96kHz A/D/D/A upgrade • appendix A A-2 EC-2 Manual Important Safety Instructions Safety symbols used in this product This symbol alerts the user that there are important operating and maintenance instructions in the literature accompanying this unit.
appendix A • EC-2 96kHz A/D/D/A upgrade EC-2 Manual A-3 Installing the EC-2 into the HD24 Precautions The EC-2 boards should only be installed by a dealer or trained technician. End users should only attempt installation if they have experience with this type of procedure.
EC-2 96kHz A/D/D/A upgrade • appendix A A-4 EC-2 Manual Prepare to install: 1. Disconnect the HD24’s AC power cable, and make sure you are working on a clean, flat, hard surface. Ground yourself by touching a grounded metal object. An anti-static workstation with anti-static mat and wrist strap is highly recommended.
appendix A • EC-2 96kHz A/D/D/A upgrade EC-2 Manual A-5 Install the new EC-2 PCBs 7. Find the daughterboard in the EC-2 package: it has two 26-pin flexible cables attached to it. Insert the ribbon connector labeled “J4 TO MAIN PCB” on the daughterboard into the 26- pin header labeled on the main PCB as “J15 TO A/D PCB”.
EC-2 96kHz A/D/D/A upgrade • appendix A A-6 EC-2 Manual Connect the PCBs 13. Connect the daughterboard to the Input and Output PCBs: Line up the connectors to the bottom (D/A) and top (A/D) PCBs, ma.
appendix A • EC-2 96kHz A/D/D/A upgrade EC-2 Manual A-7 Synchronizing at high sample rates: To record more than 12 tracks in the high sample rate mode, simply synchronize two HD24/EC-2 units together by linking them with an ADAT Sync cable (see page 24 of the HD24 manual).
EC-2 96kHz A/D/D/A upgrade • appendix A A-8 EC-2 Manual About the EC-2’s audio performance An HD24 with the EC-2 upgrade has audio performance far superior to that of any analog recorder, and a wider dynamic range than most input and output devices that may be connected to it.
appendix A • EC-2 96kHz A/D/D/A upgrade EC-2 Manual A-9 aliasing, the steeper the filter, the better. Some converters boasted 10 th -order (-60 dB per octave) filters. For comparison, most loudspeaker crossovers have 3 rd or 4 th -order filters (-18 or –24 dB per octave).
EC-2 96kHz A/D/D/A upgrade • appendix A A-10 EC-2 Manual Extending the frequency range of other studio equipment Even though an ADAT HD24 equipped with the EC-2 upgrade gives you the capability of recording audio beyond 40 kHz, many other elements of your studio may need to be upgraded to truly take advantage of this capability.
appendix A • EC-2 96kHz A/D/D/A upgrade EC-2 Manual A-11 Using the HD24/EC-2 with computer workstations and digital mixers Because the EC-2 upgrade provides 24 high quality inputs and outputs, it ca.
EC-2 96kHz A/D/D/A upgrade • appendix A A-12 EC-2 Manual Using the HD24/EC-2 with the Alesis AI-4 AES/EBU Interface The Alesis AI-4 AES/EBU Digital Audio Interface is a single-rack space unit availa.
EC-2 Manual A-1 3 Specifications For the Alesis HD24 with EC-2 96 kHz Sample Rate Upgrade A/D and D/A Converter Boards: AUDIO INPUT Input Connectors: 24 balanced 1/4" TRS jacks Nominal Input Level: +4 dBu (1.23 V RMS ) = -15 dBFS Maximum Input Level: +19 dBu (6.
An important point after buying a device Alesis EC-2 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Alesis EC-2 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Alesis EC-2 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Alesis EC-2 you will learn all the available features of the product, as well as information on its operation. The information that you get Alesis EC-2 will certainly help you make a decision on the purchase.
If you already are a holder of Alesis EC-2, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Alesis EC-2.
However, one of the most important roles played by the user manual is to help in solving problems with Alesis EC-2. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Alesis EC-2 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
