User manual SMART DEVICES FS2020

[. . . ] Please consult with your Dealer, Installer, Technician or the SMART factory for any unusual situations involving the connection and use of this product with equipment from other manufacturers. When properly connected and operated, this product should deliver outstanding results. SMART products are designed to deliver unsurpassed quality in workmanship and performance. The following information gives detailed instructions on the installation and operation of the SMART MOD 7a stereo processor. [. . . ] TWO PROJECTOR SYSTEMS - NO AUTOMATION: Rig a single pole, single throw switch between the CHANGEOVER terminal and a GROUND terminal. When the switch is open, Projector 1 will be active, when it is closed, Projector 2 will be active. NOTE : Changeover between projectors is done electronically in the MOD 7a. This necessitates that BOTH exciter lamps be lit at the same time. No exciter light changeover is provided in the unit. An exciter light changeover has at least 3 dB more circuit noise than an electronic changeover and is NOT recommended in high quality systems. Non-Sync Music Connections The non-sync music inputs for the MOD 7a are run through the Circle Surround matrix to generate 5. 1 channels of auditorium music. Connect your stereo music source (CD player, tape, etc. ) to the MUSIC LEFT and MUSIC RIGHT inputs on the back of the MOD 7a. Occasionally, a theater may use a monaural sound player such as a background music cartridge player or satellite music service that does not have stereo capabilities. In this event, connecting a mono signal into both LEFT and RIGHT MUSIC inputs will generate music in the center channel only. SMART recommends using a stereo distribution amplifier such as the SMART DA226 to feed signals from one music source to multiple sound processors. Digital Interface DB25 Pinout Pin 1 Left Pin 3 Center Pin 5 Right Pin 6 Left Surround Pin 7 Right Surround Pin 8 SubWoofer Pin 9 Mono Pin 10 Music Pin 11 Stereo A Pin 12 Digital Pin 13 Stereo SR Pin 14-25 Ground Another application for the digital input is for external sync sources. Sound interlock from a 35-mm reproducer or a single 16-mm projector may be fed into the DIGITAL INTERFACE and selected with the front panel DIGITAL format switch. Default Optical Selection External digital decoders available on the market have a function that instructs the processor to switch to an optical format in the event that the digital decoder fails or loses time code. When this happens, the digital decoder will pulse the appropriate terminal (MONO, STEREO A, STEREO SR, or MUSIC) to ground to alert the processor to switch to the optical format. The information pertaining to which format to default to is encoded in the digital soundtracks on DTS prints. On Dolby Digital, the default is SR. Monitor Interface The MONITOR INTERFACE Port is a male DB25 connector to which a booth monitors processor inputs can be connected. The pinout is as follows: Pin 5 Right Rear/Overhead Pin 7 Left Rear Pin 12 +15 VDC Pin 13 -15 VDC Pin 15 Subwoofer Pin 17 Right Wall Pin 19 Left Wall Pin 21 Right Pin 23 Center Pin 25 Left Pins 2, 4, 6, 8, 10, 16, 18, 20, 22, & 24 Ground Output Connections The main OUTPUTS are labeled LEFT, CENTER, RIGHT, LEFT WALL, LEFT REAR, RIGHT REAR, RIGHT WALL, SUB+ and SUB-. Shielded cable should be run between these terminals and the next piece of equipment in the sound system (equalizer, amplifer, etc. ). Convenient GROUND terminals are provided near the outputs. Output Wiring for non-EX applications If you are not using the EX feature, then wire all surround amplifiers to the LEFT WALL and RIGHT WALL terminals. Do not use the LEFT REAR and RIGHT REAR terminals. [. . . ] The MOD 7a is equipped with a power up muting circuit that allows time for the low level circuits to stabilize before enabling the processor outputs. This circuit prevents a turn-on thump from being passed to the auditorium speakers. However, since most amplifiers are not equipped with a comparable muting circut for the power down sequence, it is recommended that the amplifiers be turned off before the processor to avoid a turn-off thump in the auditorium. PROGRAM SELECTION The automation should be set to select the proper formats when needed. [. . . ]