Shure avc 20 owners manual

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NOTICE The AVC20 offers the choice of three different types of surround-sound effects: Dolby Surround, Spatial Surround, or Concert Surround. The AVC20 is equipped with Four Power amplifiers. The AVC20 allows central control of most video equip- ment. 4 types of easy to operate volume balance controls. The AVC20 is equipped with a sound memory circuit. The Surround Indicator can be switched on or off. The AVC20 can be used as a high output stereo amp- lifier when in the Balanced Transformerless (BTL) mode. TABLE OF CONTENTS .......................................... Special features 2 ..................................... Surround-sound effects 3 ..................................... Installing the glass door 3 ......................................... Locating speakers 4 ..................................... Connection of speakers 5 ...................... Function names and operations - Front panel 6 ...................... Function names and operations - Rear panel. 8 ................................ Volume - Balance control ; .. 10 ................................ Use of wireless remote control 11 .............................. Use of the image enhancer switch 14 ............................................ Applications 15 Example of use with a variety of different equipment .................................. (Monophonic video deck) 20 .................................... (STEREO video deck) 21 ...................................... (Two video decks) 22 ............................ (Video deck and video disc player) 24 ....................... (TV equipped with video input terminal) 26 .................................... (Overall connections) 28 ......................................... Cautions on usage 30 ........................................ Troubleshooting.. 31 ........................................... Specifications 31 This equipment generates and uses radio fre. quency energy and if not installed and 1 properly, that is, in strict accordance wi manufacturer's instructions, may cause interler- ence to radio and television reception. It has been type tested and found to comply 'je limits for Class -‚¬4 computing device in jr. dance with the specifications in Subpart J of Part 15 of FCC Rules, which are designed to provide reasonable protection against such interference in a residential installation. How- ever, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures - reorient the receiving antenna - relocate the equipment with respect to the receiver - move the equipment away from the receiver - plug the equipment into a different outlet so that ecluipment and receiver are on dif- ferent branch circuits. If necessary, the user should consult the dealer or an experienced radioltelevision technician for additional suggestions. The user may find the following booklet prepared by the Federal Commuincations Commission helpful: "How to Identify and Resolve Radio-TV inter- ference Problems" "This booklet is available frorr the US Govern- ment Printing Office. Washington. D.C., ' ', Stock No. 004-000-00345-4" Caution: To prevent electric shock do not use this (polarized) plug with an extension cord. receptacle or other outlet unless the blades can be fully inserted to prevent blade exposure. Attention: Pour prBvenir les chocs Blectriques ne pas utiliser cette fiche polaris6e avec un prolon- gateur, une prise de courant ou une autre sortie de courant, sauf si les lames peuvent Btre ins6rBes a fond sans en laisser aucune partie a dbcouven. RISK OF ELECTRIC SHOCK Amn 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. WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user 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. m The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the applianw

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SURROUND-SOUND EFFECTS Surround-sound The AVC20 is equipped with three types of surround processors which provide a sense of presence and expan- sion. 4 Every day, we are exposed to sounds coming from our ) surroundings. Some sounds reach our ears directly from the source, some indirectly reflected off of walls or the ceiling. Sounds of voices reach us from behind, sounds of cars reach us from the side. Sounds coming from all around us are called "surround-sounds". In order to recreate with as much precision as possible, that special sound heard in movie theaters, speakers are placed both in front of and behind the listeners. The reason that sound from the television in our homes is so different from the sound in movie theaters is because sound from a television only comes from in front of the viewer. With a surround system, the spatial infor- mation encoded in a film's sound track will be repro- duced in the home listening area. The sound from a TV equipped with a single speaker (or two speakers with stereo televisions) sounds very dif- ferent from the actual, "live" sound. The AVC20 is equipped with three types of surround processors to recreate that sense of presence and let you enjoy surround-sound in the privacy of your own home. Surround Processors = DOLBY SURROUND* Provides the optimal sound when watching recent movies, especially those encoded with the DOLBY SURROUND or DOLBY STEREO process. The front speakers provide the normal stereo effect, while the rear speakers reproduce the surround signals. This position provides excellent results when watching television programs, video soft- ware, video discs, or videotapes of stereo television broad- casts. CONCERT SURROUND This provides the best results when watching old movies or video recordings of concerts. The front speakers provide the normal stereo effect, while the rear speakers provide reverberation like that heard in concert halls. The reverbe- ration time can be adjusted using the CONCERT SURROUND Control. SPATIAL SURROUND Use this when watching live sports games to reproduce that stadium feeling. *Manufactured under license from Dolby Laboratories Licensing Corporation. Additionally licensed under one or more of the following patents: U.S. numbers 3,632,886, 3,746,792, ar~d 3,959,590; Canada numbers 1.004.603 and 1.037.877 "Dolb~" and the double-D symbol are trademarks of Dolby Laborator~es L~cens~ng Corporat~on. S STALLING THE GLASS DOOR