å Demonstration Network Car Audio System Installation Manual 2048 Mercer Road, Lexington, Kentucky 40511-1071 Phone: 859-233-4599 • Fax: 859-233-4510 Customer Toll-Free USA & Canada: 800-322-8346 Website: http://www.audioauthority.com The Access™ Demonstration Network is protected by U.S. Patent numbers 5,422,631 and 5,646,602 with foreign patents pending. Audio Authority, and the double-A symbol are registered trademarks of Audio Authority Corporation.
Contents Orientation INTRODUCTION .................................................................................. 4 DEFINITION OF TERMS ...................................................................... 5 HOW THE ACCESS™ SYSTEM WORKS ............................................. 7 ACCESS SYSTEM COMPONENTS .................................................... 8 Planning CHOOSING THE CORRECT SWITCHING MODULES ..................... 12 HEAD UNITS ..........................................................
Orientation INTRODUCTION The AccessEZ™ series of demonstration system modules provides a plug-in solution for car audio, hi-fi, and video switching systems in retail display environments. This second generation of the highly capable, industry-acclaimed Access™ System modules offers many new features and benefits: • AccessEZ offers a compact module to fit each kind of product, compared with a patchwork of printed circuit boards. • Modules are protected by attractive and rugged steel covers.
What is the Access™ System? The Access™ System consists of a variety of intelligent switching modules. These modules communicate with each other via the “system bus,” allowing you to construct the exact demonstration system configuration you desire from the sources, processors/equalizers, amplifiers, speakers, and subwoofers in your display. The switching modules are located near the actual products on display creating a “distributed switching network.
Bypass A way to hear a system without a particular in-line component (EQ, Crossover, Amplifier, etc.). For example, when you wish to hear a system without the processor, the system can route the signal past the processor group and directly to the amplifiers. In this expample, Position #4 on the last module in the Processor Product Group is used as the bypass location.
HOW THE ACCESS™ SYSTEM WORKS When a product is selected for demonstration, signals are sent through a network of buses between switching modules to activate that particular product position. Selecting Products in the Access System Products can be selected in a system in different ways that can all be combined into a single system, if desired. You may select products in the following ways: • By pressing a Product Select Button (PSB) connected to a switching module.
ACCESS SYSTEM COMPONENTS If you have already planned your system with the assistance of your account manager, you may wish to skip directly to the Installation section. If you do not have a complete plan for your system, get help from your Audio Authority® Account Manager by calling 800-322-8346. Access™ User Interfaces Control Panels 902 Full-Featured Control Panel Includes one 987 Equal Volume Comparison (EVC) module, one microphone with 25’ cord, and one 905 IR Remote Control.
• The control panel or any specific Product Group can be “locked out” from unauthorized user input. • Auto SPL controls the maximum volume level of the currently selected system. The maximum is 120 dB. 903 Control Panel Similar to the 902 Control Panel, but does not include the 987 EVC module, so Equal Volume Comparison and Auto SPL are not available. The 905 IR Remote will operate the 903 Control Panel but is not included, and must be purchased separately.
940EZ High-Level Selector Controls two channel high-level signals routed to or from four high-level products. Controls two channels of four products (e.g., high-level sources). Use Model 932 for applications where AutoDamping™ is desired. 942 2-Channel Amplifier Selector Switches the low-level inputs and high-level outputs of four 2-channel amplifiers. 958 EQ or Crossover Selector Controls low-level inputs and six channels of low-level outputs from four crossovers or equalizers.
982A Low-Level Isolator Small in-line, low-level device that eliminates ground loops inherent in car audio displays. One required per amplifier group (982A is not recommended with subwoofer groups). 983 Four-Channel AutoMatch Module Device used to protect high-level in/out products on display that have different ground schemes. Device will protect products from harm when a floating ground source is selected to play with an amplifier.
CHOOSING THE CORRECT SWITCHING MODULES The Access™ System is very versatile and can be installed and wired in many different ways, including the wrong way. Your Account Manager can help you choose the modules that will best suit your needs. If at any time you wish to change your merchandising approach, Access can be rewired and additional modules can be installed to accommodate a different configuration.
Head Unit Low-Level Bus Dedicated EQ 980 Low-Level Buses 916X 942 Amplifier Product Groups The low-level outputs of products in the Processor/EQ/Crossover group are connected to the next logical component in the signal path, the Amplifier Product Group. Generally, amplifiers come in two different varieties; those that have low-level and high-level inputs and those that only have high-level inputs, normally called “boosters.
Ampifier Bypass The source signal is supplied when no products in an amp group are selected. For the bypass option, remember to leave the fourth position open on the last 942 module in each Amp Product Group. That position is reserved for the bypass connection, so no amp can be connected there (see pp. 6, 40). There are many other hookup and demonstration possibilities for amplifiers, many of which are shown in this manual.
BEGIN INSTALLATION 1. Preparation Follow these steps carefully: A. Review the design of the demonstration area. • Make sure the display fixture is correct for your installation. • Look at the supplied system wiring diagram, or choose one from this manual to serve as an example. Examples are in Appendix A: Sample Systems. • Gather the owner’s manuals of other products that are part of your system for reference during the installation. B. Gather the tools and materials you will need.
Note that the front amps and speakers have matching group numbers as do the rear amps and speakers. As a rule, related amps and speakers have matching group numbers; this determines how the 902 Control Panel, if used, handles Volume Compensation of the products in these Groups. Figure 15 shows how the 902/903 Control Panel would arrange these product groups on its Product Group display windows.
C. Set the Address Switches. Some Group settings are made at the factory, and cannot be changed later. Figure 16 shows the first switch module (Model 910D) in the first Product Group (head units). It has a default address of Group #0 (set at the factory) and the Module ID is set to #00 (this lets the system know this module is connected to the first four products in this product group). The second 910 would be addressed 01, and the third module, 02, etc.
“B” should be set to “OFF” unless you wish to BYPASS the product group associated with the module. The bypass module is always the last module in the product group to be bypassed (only the bypass module should have the “B” switch turned ON). A product group will be bypassed when all products in that group are unselected. Bypass is commonly used in systems where there are both low-level and high-level output signals from head units (see Appx A, page 40 for a hookup diagram).
3. Installing the System Hardware A. Designate the Switching Module Locations. Each switching module controls either 4 or 8 components. Follow your system plan drawing to determine the location of the switching modules in the display fixture.
4. Installing the Bus Cables Pre-assembled bus cables or the raw materials to make the necessary bus cables on the job site were included with your system purchase. Pre-assembled bus cables have connectors every two feet (RCA patch cords are available in lengths from three to twenty feet). If you plan to make your bus cables on the job site, you’ll need a special assembly tool available from the factory.
6. Dual header connections are provided on all modules so you can easily extend a bus cable that is too short, or you can branch off the main run to a remote or side group of modules, if necessary. Note: Since bus connectors can be both in and out, one header connection may be left open. The remaining connector may be used to create a branch from the bus. B. Install Speaker Bus. The procedure for running the Speaker Bus is very similar to the installation of the System Bus.
1. Using high-quality shielded RCA patch cords, connect the modules with low-level jacks (910, 922, 958, 980 and 942) along with any low-level expander modules (920X). 2. Connect all modules serving each pair of low-level channels in a given group, such as source outputs (910 or 922), front amp inputs or rear amp inputs (942). 3. Connect a module from each low-level group of modules to a module of the next low-level group in the signal path.
To demonstrate amplifiers without inline products such as Processors or EQs, it is necessary to bypass the Processor/EQ Product Group at low-level. Figure 28 shows how to route the signal from the input of the 958 past the display product connections and on to the Amplifier Product Group. The fourth position on the last module is reserved for bypass in Product Groups using a bypass. Bypass Switch ON 958 Low-level signal from Source Bus or previous 958 module. Low-level signals to 980 module. Figure 28.
7. Cut the red and black wires to length, strip the ends and insert them into the terminal block on the 910 module labeled “DC Power Bus.” Wire red to “+” and black to “–” and tighten the screws securely. 8. If 915X modules are part of your system, wire them in the same manner as the 910 modules. Connect the pre-made power cable supplied with the 980 System Module to the terminal posts of a nearby 916X. Tighten all the brass nuts on 916X bus terminals until snug.
Here are the three different Power Modes: • Power Conserve allows only one component from each electronic group to be ON at any given time. New selections have a turn-on delay of either 3/4 seconds or 3 seconds, depending on how the T switch is set on each main module. • Smart Power Mode allows up to three components in each electronic product group to be on at any given time. When a fourth component in the group is selected, the first selected component in the group powers down, and so on.
The Access System allows you to program up to 4 pairs of speakers to play in the same product group. However, we strongly encourage you to leave the default setting at 2 pairs per group, unless you’re very confident of each and every amp’s stability. Immediately beneath the “Power Mode” switch on the 980 are three additional switches labeled “Speaker Limit.” The switches are set to OFF at the factory. To change the factory setting, turn on the limit number switch you want. Leave the other switches OFF.
• If your system is all new, proceed to step 4. If some or all of your system is older (software version earlier than 3.2) the SST jumper switch on the 980 module must be in the FAST pin position (Figure 33). The factory position for the jumper is “NORM.” The SST jumper on the Model 980EZ must be cut and re-soldered to change its position. (The software version you have can be easily identified by the label on the large “chip” on each main switching module; all AccessEZ™ products are version 3.3 or higher).
INSTALLING A CONTROL PANEL Skip this step if you do not have a 902, 903 or 906 Control Panel, or if the display is pre-assembled. If you have a 902 or 903 Control Panel, it is accompanied by a separate User’s Guide which you should locate for future reference. 1. Cut an opening for the Control Panel if you wish to flush mount it in your display. You can also use a 989 Enclosure Kit to house your Control Panel which can be shelf-mounted in your display.
• Plug the calibration microphone into the Microphone jack located on the rear of the 902, using the extension cable provided, if necessary. • If your system includes a Model 990 Remote Infrared Receiver, mount the 990 to the ceiling in the display area and connect the 990 to the header on the rear of the 902 labeled “Aux IR.” Note: The 903 Control Panel can also be remotely controlled using a 905 IR Remote. A single 905 remote is packaged with the 902, but must be ordered separately for the 903. 4.
6. Mount the control panel(s) using the four black screws provided. Do not overtighten the screws. Too much torque during screw insertion can crack the acrylic panel cover. Installing Product Select Buttons and Product Indicators. Your system plan may specify using product select buttons (PSBs), and product indicators (LEDs) in conjunction with a control panel. Some system users prefer to use PSBs as the only method of product selection and do not have a control panel as part of their demonstration system.
980 System Module Accessories. In systems without a control panel, it is usually desirable to add “outboard” switches for remote operation of certain 980 system management tools. Normally Closed Normally Open Common Remote Power Switch. If your system does not include a Control Panel, you may want to turn the system on and off using a remote key switch or toggle switch. • Use any SPST (single-pole, single-throw) switch you prefer. Low current switches will work perfectly well.
Remote System Reset There is a “System Reset” button on the 980 that enables the user to reset the system in the unlikely event that the system “hangs up.” Pressing this button will re-boot the entire system. Having a Remote Reset switch is a good idea in any system since the 980 is usually buried inside the display and would not be readily accessible if the system ever needed to be reset. You may wish to “hide” this remote switch from customer access.
• If the numeric displays begin flashing at any time during the module scan, two or more modules have the same address. Duplicate addresses are disallowed because the control panel is unable to tell two identically addressed modules apart. Note the last group number displayed in the Product Group windows and the module number displayed in the EVC window and try to find two modules that both have this address.
3. Select a speaker position using the test PSB, then move the PSB to the same module location on the opposite side of the speaker section of the display. • The PSB lights up as soon as you plug it in, showing both left and right speaker positions are selected. 4. Attach the test PSB to a second speaker in a group, press the PSB and hold the button for at least one second. • If the speaker limit setting on the 980 is set to 1, the PSB will not come on.
• Connect the ground lead to the GND terminal. • Connect the memory lead to the BAT terminal. • Connect the ignition lead to the IGN terminal. • Plug an FM antenna cable from the FM Distribution System into the unit’s female antenna jack. • Install the unit in your fixture. B. Connect a processor’s audio inputs and outputs to a 958 in the Processor/EQ Group. Then connect the processor/EQ unit’s DC power inputs to a 915X DC Expander Module.
• Connect the left speaker to one of the 2 position terminal blocks on the Left 932 and the right speaker to the corresponding position on the Right 932. Wire the positive lead to (+) and the negative speaker lead to (–). • Connect the two-pin plug of the PSB’s cable, if PSBs are used, to the small 2 pin headers on the 932 circuit board at the corresponding product position. Press the PSB into the 3⁄4” hole you drilled earlier in the mounting panel or display fixture.
3. Connect the Battery If a battery is to be used as part of your DC power system, install it in the system between the power supply and the DC distribution system you installed earlier. A. Locate your battery within 10 feet (3 meters) of the power supply, preferably an Audio Authority Model 277 Hybrid™ Power Source. WARNING: Never allow battery terminals to be shorted to one another.
3. An isolator placed in-line between the head unit group and the EQ group instead of or in addition to those in Step 2 may improve noise performance even further. 980 910 958 982A Step 2 Step 3 DEMONSTRATION FEATURES 1. Selecting Additional Speaker Pairs with PSBs Figure 43. Install 982A Ground Loop Isolators on the Front, Rear, and Sub Low-Level Bus in the signal path just before the Model 980. If noise persists, install a 982A in the signal path between the 910 and the 958.
Reference APPENDIX A: SAMPLE SYSTEMS System, DC and Signal Bus Wiring Diagrams • Example System 1: Two-Channel System • Example System 2: Six-Channel System • Example System 3: Amp Shared System APPENDIX B: PRODUCT CONNECTIONS Product to Switch Module Wiring Diagrams • • • • • • • Head Unit Hookup Processor/EQ Hookup Model 980 System Module Hookup Amplifier Two-Channel Hookup Amplifier Four-Channel Hookup Amplifier Shared Hookup Left/Right Speaker Hookup ACCESS WARRANTY INDEX ASD Tech Support USA and Ca
Phone: 859-233-4599 Fax: 859-233-4510 Control Cable System Bus Speaker Bus Low-Level Bus DC Bus 4 Gauge Black 4 Gauge Red Sources (2 ch low & 2 ch high-level) Front Amplifiers (2 ch input & 2 ch output) Speaker Pairs Processor Bypass Amplifier Bypass 8 3 8 Sample System Capacity: Speaker Bus Amplifier Bypass Low-Level Bus 942 GROUP MODULE ID LEFT-RIGHT (932 only) ADDRESSING KEY 4/01 R 932 Right Front Speakers 4/00 R System Bus 932 980 4/01 916X 2/77 Power Source • Addressing • Syste
Phone: 859-233-4599 Fax: 859-233-4510 932 932 932 932 932 932 Left Sub Speakers 6/01 L 6/00 L Left Rear Speakers 5/01 L 5/00 L Left Front Speakers 4/01 L 910 01 2/00 958 915X Preamp EQs High-powered Sources Crossovers/Preamp EQs Front Amplifiers Rear Amplifiers Sub Amplifiers Front Speaker Pairs Rear Speaker Pairs Sub Speaker Pairs System Bus yellow/blue/red/black DC Bus 14 gauge red/black 4 gauge black 4 gauge red Processor Bypass Amplifier Bypass 12 3 7 3 4 16 16 16 System Capacit
Low-Level Bus Speaker Bus Amp Bypass EQ Bypass 932 932 932 932 SIX-CHANNEL SYSTEM 932 Car Battery 2/77 Power Source EXAMPLE SYSTEM 2 932 • • • • Sub Speaker Bus 942 916X 980 Sub Low-Level Bus Rear Low-Level Bus 942 916X 942 942 Rear Speaker Bus Front Low-Level Bus 916X 916X Front Speaker Bus Sub Speaker Bus EQ Bypass 958 Rear Amplifier Bypass Front Speaker Bus 915X 932 932 932 932 932 932 910 910 910 958 982A Front Amplifier Bypass Rear Speaker Bus 982A 42 ASD T
Phone: 859-233-4599 Fax: 859-233-4510 932 932 6/01 L 6/00 L Left Sub Speakers 932 5/00 L 5/01 L Left Rear Speakers 932 4/00 L 4/01 L Left Front Speakers 932 910 01 2/00 Control Cable System Bus DC Bus DC Expansion Cable 4 Gauge Black 4 Gauge Red 980 High-powered Sources Crossovers/Preamp EQs Shared Amplifiers (any position) Front Speaker Pairs Rear Speaker Pairs Sub Speaker Pairs Processor Bypass Amplifier Bypass 12 7 3 16 16 16 Sample System Capacity: Preamp EQs 958 958 2/01 915X 915X
Low-Level Bus Speaker Bus Amp Bypass EQ Bypass EXAMPLE SYSTEM 3 932 932 932 AMP SHARED SYSTEM 932 932 2/77 Power Source Car Battery 932 • • • • Sub Speaker Bus Front Speaker Bus 942 942 942 916X Rear Speaker Bus Speaker Bus Low-Level Bus Rear Low-Level Bus 903 Sub Low-Level Bus 980 Front Low-Level Bus 982A Sub Speaker Bus Rear Speaker Bus Rear Amplifier Bypass 958 958 Front Speaker Bus 915X 915X 932 932 932 932 932 932 910 910 910 Front Amplifier Bypass 982A 44 ASD
Model 910 Head Unit Module: 4 Channel High- /2 Channel Low-Level Convenient source module for (4) Car Audio Sources that includes DC connection (No Model 915X needed). This four position module can be split in half to allow easy vertical installation of six source units.
Processor/EQ: 2 Channel Low-Level Input / 6 Channel Low-Level Output The same layout applies to 6 and 4-channel processor Product Groups (a 2-channel processor group may use a 922 for input signal and a 920X for output). The Low-Level Bus connections should be routed to the corresponding bus connections on the next module in the Product Group or the Model 980 System Module (front output bus to position "A" on the 980A, rear bus to position "B" & Sub bus to position "C").
Model 980 System Module / 2- and 6-Channel Hookup The System Module is essential for every Access™ system. It makes no difference if selection of product is by Control Panel or by Product Select Buttons or both, therefore, always follow this diagram for proper setup. Concerning signal path, the Model 980EZ will be located just before the amplifier inputs (see Appendix A). In the 2-channel configuration, the Front Inputs and Front Outputs are the only connections that are used.
AMPLIFIERS / 2-Channel Hookup This drawing shows the basic connections for a 2-channel amplifier. See Appendix A for other system related connections such as System Bus, DC distribution, or Low-Level and High-Level Bus. Amp (position. #4) DC Connections Switched + (Blue) Battery (Yellow) Ground (Black) 916X DC Power Adapter CAUTION! 916X 2 3 1 BAT– DISCONNECT BATTERY BEFORE SERVICING.
Amp (positon #4) DC Connections Switched + (Blue) Battery (Yellow) Ground (Black) AMPLIFIERS / 4-Channel Hookup The Module ID for both 942s in a fourchannel setup should be the same, but the group number for each should be different. For example, if the front 942 group number is “4,” then the rear 942 group number would be “5.” Front and Rear Channels of each amp can be selected separately. DISCONNECT BATTERY SERVICING.
Shared Amplifier Hookup This diagram shows one stereo amplifier connected to all three Amplifier Product Groups so that it can play in the front, rear, or sub position. To add three more shared amplifiers, connect each to its own Model 993 adapter, and then connect the adapter to corresponding positions on each 942 module. If some of your amps will be shared, and some not shared, contact Audio Authority® at the phone number below for assistance.
Left/Right and Mono Speaker Hookup Model 932 Speaker Modules can be configured to function as left, right or mono modules. The slide switch on the left side of the module is marked LEFT and RIGHT . Position the slide switch to LEFT for left channel function and toward RIGHT for right channel or MONO function. (If used for mono operation there will not be a corresponding "L" module.) Model 932s are unique in that they share the same GROUP Address with the amplifier group with which they operate.
ACCESS™ WARRANTY Limited Warranty Should any Access™ product become defective in materials or workmanship within 5 years from the date of purchase, Audio Authority® Corporation guarantees to the original purchaser that it will replace the defective product at no cost. This warranty is not applicable for products which, in our opinion, have been damaged, altered, abused, misused, or improperly installed.
Index Symbols PRODUCT INDEX NUMBERS 12V Siren terminal block on 980…31 2-channel amplifier hookup…48 2-channel system diagram…40 277 Power Source operation…24 4-channel ampifiers…13 6-channel amplifiers…13 6-channel system example wiring diagram…41 902 Control Panel…8 902 Control Panel installation…28 902/903 Control Panel in example wiring diagram…43 902/903 diagnostics…32 902/903 Programming Switches…29 902’s calibration microphone…28 903 Control Panel…8, 9 903 Control Panel installation…28 904 or 904V an
bUS flashing in EVC window…32 BUS MONITOR LED on 980…32 Buses, explanation of…7 Bypass and EQ group planning…12 Bypass and programming switches…18 Bypass, definition of…5 Bypass example wiring diagram…40 C Calibration microphone and 902 installation…28 Calibration of speaker volume…8 CD Changer Distribution…10, 11 CD Changers and DC power…23 Choosing switch modules…12 Comparing A/B systems…38 Components of the Access™ System…8 Computer for product selection…7 Connecting the battery…37 Connector polarity…20
P S Parallel Speaker Limit settings…25 PC Interface…10 Position #4 and bypass…48 Position 4. See Bypass Position, definition of…5, 6 Power LED…32 Power Memory Mode…25 Power Mode settings…24 Power Supply.