Instruction/ maintenance manual of the product ED-901 Onkyo
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ED-901 Dolby surr ound AC-3 Decoder Instruction Manual CONTENTS Connections ......................................... 8 Operations ............................................ 9 Block Diagram ................................... 13 Troubleshooting Guide .
2 Thank you for your purchase of the ONKYO ED-901 Dolby Surround AC-3 Decorder. Please read this manual thoroughly before making connections and plugging in the AC power cord. Following the instructions in this manual will enable you to obtain optimum performance and maximum listening enjoy- ment from your new ED-901.
3 PORTABLE CART WARNING S3125A 1. Read Instructions — All the safety and operating instructions should be read before the appliance is operated. 2. Retain Instructions — The safety and operating instructions should be retained for future reference.
4 Precautions 1. Warranty card The serial number is written on the rear panel of the unit. Write the serial number and model number on your warranty card and keep it in a safe place. 2 . Recording Copyright Recording of copyrighted material for other than personal use is illegal without permission of the copyright holder.
5 Introduction Onkyo’s ED-901 Dolby Surround AC-3 Decoder brings your home the excitement of Dolby Surround AC-3 sound effects from your LaserDiscs, etc. that employ the latest Dolby AC-3 technology. The ED-901 consists of an AC-3RF demodulator, an AC-3 decoder, and a Cinema Re-EQ circuit.
6 Speaker Placement We recommend that you use the ED-901 in conjunction with the Onkyo TX-SV919THX or TX-SV828THX surround receiver. If you have a complete THX speaker system that is connected to either of these receivers, the addition of new speakers or arrangement of the current speaker configuration is unnecessary.
7 Control Positions and Names NOTE: If there is a protective film on the surface of the display, making it difficult to read the display, remove it. For more information about the function of a particular button, please turn to the page listed in the brackets ([ ]) following each name.
8 Connections · Do not plug in the power cord until all connections have been made. · Before connecting the ED-901 to the receiver, make sure that the POWER switches on both the ED-901 and the receiver are in the OFF position.
9 Operation 1. Turn on the power of the sur- round receiver. Perform the necessary settings, such as adjusting output level of each channel, on the surround receiver.
10 Operation Setting the Output Channel Mode (OUTPUT CH. MODE) · The highest quality Dolby Surround AC-3 sound can be reproduced when the ED-901 is connected to five full- range THX speakers and one or more subwoofers. To get the most out of the ED-901, it is strongly recommended that you set-up a complete THX speaker system.
11 Operation Setting the Surround Delay For Dolby Surround AC-3, as opposed to the conventional Dolby Pro Logic technol- ogy, it is unnecessary to set the time delay between front speakers and surround speakers. The only thing you should consider is the difference between the front speaker-listener distance and surround speaker-listener distance.
12 Re-EQ is licensed from Lucasfilm, Ltd. U.S. patent numbers 5,043,970; 5,189,703; 5,222,059. Foreign patents pending. Lucasfilm and Re-EQ are trademarks of Lucasfilm Ltd. Using the Cinema Re-EQ, Mid- night Theater and LFE Modes Using the Cinema Re-EQ Mode Press the CINEMA Re-EQ button.
13 Block Diagram AC - RF AC - 3 RF Demodulator VDP OPTICAL DVD COAXIAL Digital Audio Interface AC-3 Decoder 20 bit D/A 20 bit D/A 20 bit D/A Anti-aliasing Filter CINEMA Re-EQ DB-25 OUTPUT +10dB LFE SU.
14 T roubleshooting Guide • No power. Cause: Power cord is not plugged in or is not com- pletely inserted. Remedy: Firmly plug in the power cord. • No Sound. Cause: Incorrect cord connections. Remedy: Connect the cord properly. Cause: Wrong input selector.
15 Input Seneitivity: INPUT-1,2 analog audio: 50k Ω and Impedance INPUT-1 AC-3RF: 75 Ω INPUT-2digital (coaxial): 75 Ω INPUT-1,2video: 1Vp-p/75 Ω S-video Y: 1Vp-p/75 Ω S-video C: 0.28Vp-p/75 Ω Output Level: D-SUB25 5.1CH OUTPUT and Impedance LEFT, RIGHT, CENTER, LEFT SURROUND, RIGHT SURROUND (SUB WOOFER) : 0.
E SN29342251 Printed in Japan Sales Planning & Promotion Dept.: 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572, JAPAN Tel: 0720-31-8111 Fax: 0720-33-5222 ONKYO U.S.A. CORPORATION 200 Williams Drive, Ramsey, N.J. 07446, U.S.A. Tel: 201-825-7950 Fax: 201-825-8150 E-mail: onkyo@onkyousa.
An important point after buying a device Onkyo ED-901 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Onkyo ED-901 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 Onkyo ED-901 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Onkyo ED-901 you will learn all the available features of the product, as well as information on its operation. The information that you get Onkyo ED-901 will certainly help you make a decision on the purchase.
If you already are a holder of Onkyo ED-901, 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 Onkyo ED-901.
However, one of the most important roles played by the user manual is to help in solving problems with Onkyo ED-901. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Onkyo ED-901 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
