R C LS R S DDP1 NATURAL SOUND DIGITAL PROCESSOR L R C LS R S NATURAL SOUND DIGITAL PROCESSOR DDP­1 LF E TEST MODE MENU PARAMETER CONTENTS Safety Instructions ......................................... 2 Profile of This Unit ......................................... 4 Speaker System Setup .................................. 5 Connections ................................................... 6 Turning On/Off the Power of This Unit ........... 8 Table of Functions ......................................... 9 Adjustments Before Operation .................... 10 Playing an AC-3 Source .............................. 14 Adjusting Output Levels ............................... 14 Adjusting Delays and Dynamic Range ........ 16 Specifications .............................................. 18 Troubleshooting ........................................... 18 Block Diagram ............................................. 19 OWNER'S MANUAL IMPORTANT! Please record the serial number of this unit in the space below. Serial No.: The serial number is located on the rear of the unit. Retain this Owner's Manual in a safe place for future reference. LF E SAFETY INSTRUCTIONS 7 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN Wall or Ceiling Mounting ­ The unit should be mounted to a wall or ceiling only as recommended by the manufacturer. Ventilation ­ The unit should be situated so that its location or position does not interfere with its proper ventilation. For example, the unit should not be situated on a bed, sofa, rug, or similar surface, that may block the ventilation openings; or placed in a built-in installation, such as a bookcase or cabinet that may impede the flow of air through the ventilation openings. Heat ­ The unit should be situated away from heat sources such as radiators, stoves, or other appliances that produce heat. 8 CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. 9 · Explanation of Graphical Symbols The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert you to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert you to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. 10 Power Sources ­ The unit should be connected to a power supply only of the type described in the operating instructions or as marked on the unit. 11 Power-Cord Protection ­ Power-supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the unit. 12 Cleaning ­ The unit should be cleaned only as recommended by the manufacturer. WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE. 13 Nonuse Periods ­ The power cord of the unit should be unplugged from the outlet when left unused for a long period of time. 1 2 3 4 5 Read Instructions ­ All the safety and operating instructions should be read before the unit is operated. Retain Instructions ­ The safety and operating instructions should be retained for future reference. Heed Warnings ­ All warnings on the unit and in the operating instructions should be adhered to. Follow Instructions ­ All operating and other instructions should be followed. Water and Moisture ­ The unit should not be used near water ­ for example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc. Carts and Stands ­ The unit should be used only with a cart or stand that is recommended by the manufacturer. 14 Object and Liquid Entry ­ Care should be taken so that objects do not fall into and liquids are not spilled into the inside of the unit. 15 Damage Requiring Service ­ The unit should be serviced by qualified service personnel when: A. The power-supply cord or the plug has been damaged; or B. Objects have fallen, or liquid has been spilled into the unit; or C. The unit has been exposed to rain; or D. The unit does not appear to operate normally or exhibits a marked change in performance; or E. The unit has been dropped, or the cabinet damaged. 16 Servicing ­ The user should not attempt to service the unit beyond those means described in the operating instructions. All other servicing should be referred to qualified service personnel. 6 6A A unit and cart combination should be moved with care. Quick stops, excessive force, and uneven surfaces may cause the unit and cart combination to overturn. 17 Power Lines ­ An outdoor antenna should be located away from power lines. 18 Grounding or Polarization ­ Precautions should be taken so that the grounding or polarization is not defeated. 2 Caution: Read this before operating your unit 1 To assure the finest performance, please read this manual carefully. Keep it in a safe place for future reference. Install this unit in a cool, dry, clean place ­ away from windows, heat sources, sources of excessive vibration, dust, moisture and cold. Avoid sources of humming (transformers, motors). To prevent fire or electrical shock, do not expose the unit to rain and water. Do not operate the unit upside-down. It may overheat, possibly causing damage. Never open the cabinet. If something drops into the set, contact your dealer. Do not use force on switches, controls or connection wires. When moving the unit, first disconnect the power plug and the wires connected to other equipment. Never pull the wires themselves. Do not attempt to clean the unit with chemical solvents; this might damage the finish. Use a clean, dry cloth. 7 To prevent lightning damage, pull out the power cord and remove the antenna cable during an electrical storm. When not planning to use this unit for long periods of time (ie., vacation, etc.), disconnect the AC power plug from the wall outlet. Be sure to read the "TROUBLESHOOTING" section regarding common operating errors before concluding that the unit is faulty. Do not connect audio equipment to the AC outlet on the rear panel if that equipment requires more power than the outlet is rated to provide. The apparatus is not disconnected from the AC power source as long as it is connected to the wall outlet, even if the apparatus itself is turned off. 2 8 9 3 4 5 10 AC outlet 6 FCC INFORMATION (for US customers only) 1. IMPORTANT NOTICE : DO NOT MODIFY THIS UNIT! This product, when installed as indicated in the instructions contained in this manual, meets FCC requirements. Modifications not expressly approved by Yamaha may void your authority, granted by the FCC, to use the product. 2. IMPORTANT : When connecting this product to accessories and/or another product use only high quality shielded cables. Cable/s supplied with this product MUST be used. Follow all installation instructions. Failure to follow instructions could void your FCC authorization to use this product in the USA. 3. NOTE : This product has been tested and found to comply with the requirements listed in FCC Regulations, Part 15 for Class "B" digital devices. Compliance with these requirements provides a reasonable level of assurance that your use of this product in a residential environment will not result in harmful interference with other electronic devices. This equipment generates/uses radio frequencies and, if not installed and used according to the instructions found in the users manual, may cause interference harmful to the operation of other electronic devices. Compliance with FCC regulations does not guarantee that interference will not occur in all installations. If this product is found to be the source of interference, which can be determined by turning the unit "OFF" and "ON", please try to eliminate the problem by using one of the following measures: Relocate either this product or the device that is being affected by the interference. Utilize power outlets that are on different branch (circuit breaker or fuse) circuits or install AC line filter/s. In the case of radio or TV interference, relocate/reorient the antenna. If the antenna lead-in is 300 ohm ribbon lead, change the lead-in to coaxial type cable. If these corrective measures do not produce satisfactory results, please contact the local retailer authorized to distribute this type of product. If you can not locate the appropriate retailer, please contact Yamaha Electronics Corp., U.S.A. 6660 Orangethorpe Ave, Buena Park, CA 90620. The above statements apply ONLY to those products distributed by Yamaha Corporation of America or its subsidiaries. We Want You Listening For A Lifetime (for US customers only) YAMAHA and the Electronic Industries Association's Consumer Electronics Group want you to get the most out of your equipment by playing it at a safe level. One that lets the sound come through loud and clear without annoying blaring or distortion ­ and, most importantly, without affecting your sensitive hearing. Since hearing damage from loud sounds is often undetectable until it is too late, YAMAHA and the Electronic Industries Association's Consumer Electronics Group recommend you to avoid prolonged exposure from excessive volume levels. 3 PROFILE OF THIS UNIT Thank you for purchasing the Yamaha DDP-1, a sophisticated digital sound processor designed specifically for decoding Dolby AC-3. This unit consists of an AC-3 RF demodulator, an AC-3 decoder and other original Yamaha functions developed using the newest technology to reproduce AC-3 encoded sources precisely as movie sound creators intended. AC-3 will lead listeners into a totally new sound experience. This unit is equipped with "discrete" terminals for sending AC-3 multi-channel audio signals individually. The audio amplifier or receiver must have "discrete" input terminals to receive the signals from the DDP-1. The use of Yamaha RX-V2090, a multi-channel audio/video receiver equipped with discrete input terminals combined with this unit is an ideal choice for the purpose of experiencing AC-3 sound, and this is the best system we recommend. What's Dolby AC-3? Dolby AC-3 is a new generation of multi-channel digital audio technology, or the newest spatial sound processing format developed for 35 mm film-movies by employing a new kind of low bit-rate audio coding. Dolby Surround AC-3 is a digital surround sound system that provides completely independent multi-channel audio to consumers. In multi-channel form, Dolby Surround AC-3 provides five full range channels in what is sometimes referred to as a "3/2" configuration: three front channels (left, center and right), plus two surround channels. A sixth bass-only effect channel is also provided for output of LFE (low frequency effect), or low bass effects that are independent of other channels. This channel is counted as 0.1, thus giving rise to the term 5.1 channels in total. Compared to Dolby Pro Logic that is referred to a "3/1" system (left front, center, right front and just one surround channel), Dolby Surround AC-3 features two surround channels, called stereo or split surrounds, each offering the same full range fidelity as the three front channels. Sound of wide dynamic range reproduced by the five full range channels presents listeners much excitement that has never been experienced before. Precise sound orientation by the discrete digital sound processing expands realism that the original movie possesses. Laser Disc is a home audio format that could benefit from Dolby AC-3. In the near future, Dolby AC-3 will also be applied to DBS, CATV, DVD and HDTV. The ongoing release of Dolby Stereo Digital theatrical films now underway will provide an immediate source of AC-3 encoded video software. Manufactured under license from Dolby Laboratories Licensing Corporation. "Dolby", "AC-3", and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation. Copyright 1992 Dolby Laboratories, Inc. All rights reserved. Features of this unit · Dynamic range (sound scale) of source can be changed so that it will be suitable for the listening conditions. · Test tone generator helps you adjust speaker level balance. · Center channel output can be sent to the main speakers if you do not use a center channel speaker. · Output of low bass from any channel can be assigned to either the MAIN OUTPUT terminals or SUBWOOFER OUTPUT terminal to maximize system performance. · Three types of inputs (AC-3 RF, AC-3 Digital Optical and Coaxial) are available for future use. · Output of LFE can be assigned to either the MAIN OUTPUT terminals or SUBWOOFER OUTPUT terminal to maximize system performance. 4 SPEAKER SYSTEM SETUP As described on p ...