Instruction/ maintenance manual of the product AVC20 Shure
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Owner's Manual VIDEO / HI-FI SYSTEM EXPANDER 222 HARTREY AVENUE EVANSTON, ILLINOIS 60202-3696 U.S.A TELEPHONE (312) 866-2200 CABLE SHUREMICRO.
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.
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.
LOCATING SPEAKERS Speaker location will depend in each case on the size and shape of the specific room in which the Home Theater System is installed. The diagrams below may be used as a general guide to speaker placement in rooms of various shapes.
CONNECTION OF SPEAKERS Connection of 4 Speakers OPERATE SWITCH +I MONO OUT I I Normally this switch is SPEAKER AC OUTLET Monophonic Output kept to the left (seen OUTPUT (SWITCHED) Terminals from behind). TERMINALS There is one set of four speaker output terminals.
FUNCTION NAMES AND OPERATIONS-FRONT PANEL Function Names and Operations @ Power Switch (POWER) Use this switch to turn the power of the AVC20 on and off.
DOLBY This is the best position for viewing SURROUND movies. 0 The AVC20 is equipped with the proper Dolby Surround decoder for use especially with video software con- taining the DOLBY SURROUND mark 00 ,,,,,,~ ,,~,,,,,, ,,( '" or movies in which the DOLBY STEREO rnark~OImre*m~mI'"appears at the end.
FUNCTION NAMES AND OPERATIONS-REAR PANEL Function Names and Operations @ A-V INPUT 1 Input/Output Terminals @ A-V INPUT 2 InputIOutput Terminals A-V INPUT @ and @ Input/Output Terminals are used for connection of components on which recording is possible, such as a video deck.
@ Operation Selector Switch Use this switch to select NORMAL or Balanced Transformerless (BTL) operation. NORMAL Operation 0 Use this position for independent operation of the four power amplifiers. 0 This is the position in which the AVC20 is normall y used.
VOLUME-BALANCE CONTROL The AVC20 is equipped with 4 built-in power amplifiers. The volume of each of these can be controlled separately. Volume Control m Press the upper side to simultaneously increase the volume of all four speakers. Press the lower side to simultaneously decrease the volume of all four speakers.
USE OF WIRELESS REMOTE CONTROL A variety of operations are possible from a comfortable distance when, using the wireless remote control unit. Remote Control Sensor .When using the wireless remote control, always point it toward the remote control sensor on the AVC20.
1. SURROUND-SOUND EFFECT SELECTION The AVC20 provides a choice of 3 surround effects, depending upon the program or software being viewed. For programs for which the surround effect is not nece- ssary, such as news broadcasts, press the BYPASS but- ton.
4. Use of the Preset Volume Buttons It is possible to place in the memory three different volume adjustment settings. When the optimal adjustment is reach- ed as shown in number 3 above, press the STORE button. (There is no need to keep it pressed in.
USE OF THE IMAGE ENHANCER SWITCH Use of the IMAGE ENHANCER Switch The lrnage Enhancer function is very effective for cleaning up fuzzy pictures, or when watching foreign films, making movie subtitles clearer. The switch works in three steps: .........
APPLICATIONS (1) Balanced Transformerless (BTL) Mode The AVC20 has a built-in 4-way 30W amplifier system, but by switching to BTL operation, it can be used as a 2-way 6oW amplifier system. BTL . . . Balanced Transformerless Switching CAUTION TURN OFF AVCZO POWER BEFORE OPERATING I BTLSWITCH.
Connection (6) @ To use the AVC20 on the two rear channels and use the two front channels with an added amplifier, change the U-shaped short pins as shown in the diagram. @ Connect the FRONT-PRE OUT terminals to the input terminals of the other amplifier using pin plug cables.
(2) Using as Surround Processor The AVC20 can be used by disconnecting both the front and rear pre-amplifiers and main amplifiers. To use the AVC20 as a surround processor with different main amplifie.
Center Speaker Center Speaker Center Arnpl~f ier SPEAKER (3) MONO OUT Many audio/video systems are set up with a television centered between two speakers. Sometimes, however, if the speakers are located far away from the tele- vision, the resultant center localization can become confusing.
(4) Connections for "Use of WI Input/Output Terminals - Example 1" AVCZO Connections Color Monitor Lm/ Video Deck IHiFil Video Disc Player (etc.
EXAMPLES OF USE WITH A VARIETY OF DIFFERENT EQUIPMENT (Monophonic Video Deck) As shown in the diagrams below, video signals are supplied to the television through the antenna line, and audio signals pass through the AVC20 to produce sound from the speakers.
EXAMPLES OF USE WITH A VARIETY OF DIFFERENT EQUIPMENT (Stereo Video Deck) USE OF INPUT SELECTOR SWITCHES SOURCE SELECTOR SWITCH DISPLAY Mono MONO Off Mono SYNTHETIC STEREO Stereo BYPASS [m Stereo CONCERT SURROUND r .
EXAMPLES OF USE WITH A VARIETY OF DIFFERENT EQUIPMENT (Two Video Decks) First, decide which deck is to be used primarily. In the axample below, a stereo video deck is used as the primary deck, while a monophonic video deck is Uxed as the secondary deck.
EXAMPLES OF USE WITH A VARIETY OF DIFFERENT EQUIPMENT (Video Deck and Video Disc Player) The video disc player's video signals entering the AVC20, are sent from the AVC20 output terminals to the video deck's LINE input terminals, and then from the video deck's VHF terminal to the televi- sion.
EXAMPLES OF USE WITH A VARIETY OF DIFFERENT EQUIPMENT (TV Equipped with Video lnput Terminal) This combination brings out the best in the AVC20. Output from all audiolvideo equipment is input to the A.
EXAMPLES OF USE WITH A VARIETY OF DIFFERENT EQUIPMENT (Overall Connections) Connect equipment for playback and recording, such as a video deck, as below for best results. Connect equipemrnt for playback only, such as a TV tun(( video disc kplayer, here for best results.
CAUTIONS ON USAGE For Safety Power Source Connect to a household power ac outlet. Power Cord Do not bend or twist the power cord or place heavy objects on top of it. A damaged cord may result in fire or electric shock. Do Not Open Do not remove the cab~net, as this is both dangerous and could damage the AVCZO.
SPECIFICATIONS Symptom = Power does not come on No sound or picture is produced No sound is produced No SURROUND is produced Amplifier Section Rated Output (all channels driven, Main Amplifier Input) In Normal Operation ........ Front ..... 30W + 30W (20 - 20 kHz 8 Ohm) .
An important point after buying a device Shure AVC20 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Shure AVC20 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 Shure AVC20 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Shure AVC20 you will learn all the available features of the product, as well as information on its operation. The information that you get Shure AVC20 will certainly help you make a decision on the purchase.
If you already are a holder of Shure AVC20, 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 Shure AVC20.
However, one of the most important roles played by the user manual is to help in solving problems with Shure AVC20. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Shure AVC20 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
