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Symetrix 440 User Manual

Foreground audio controller
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440 Foreground
Audio Controller

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Summary of Contents for Symetrix 440

  • Page 1 440 Foreground Audio Controller...
  • Page 2 Symetrix is a registered trademark of Symetrix, Inc. Mention of third-party products is for informational purposes only and constitutes neither an endorsement nor a recommendation. Symetrix assumes no responsibility with regard to the performance or use of these products. 6408 216th St. SW...

  • Page 3: Chapter 1 Introduction

    The 440 provides both a mic-level page input and a line-level page input. You may use either type of page input, or a mix of both inputs. When a page occurs, the selected program material will be ducked (decreased) by a user-selected amount, to provide intelligibility for the page.

  • Page 4: Chapter 2 Operator Safety Summary

    440. In case of failure, refer all servicing to the factory. Servic- ing is required when the 440 has been damaged in any way, such as when a power supply cord or plug is damaged, liquid has been spilled or...

  • Page 5: Chapter 3 Fast Setup

    UTPUT EVEL 8. Connect the 440 to an appropriate source of AC power, using the Symetrix PS-3 or PS-3E power supply provided with your 440. 9. Set the R switch (located on the back panel) to the Local (out)

  • Page 6: Chapter 4 Front Panel Overview

    3 control — Sets the gain that will be applied to the program material which is connected to ROGRAM NPUT Tone Section control — Provides up to 12dB of boost or cut at 100 Hz to all signals, program and paging, which pass through the 440.
  • Page 7 440 is in Remote mode, the remote control s output level adjustment may be used to increase the 440 s output level up to, but not exceeding, the level determined by the setting of the front-panel L control.

  • Page 8: Chapter 5 Rear Panel Overview

    (out), this final output of the 440 will include paging signal and both channels of the selected program material, as modified by all of the 440 s front panel controls and/ or remote control. This line-level output is available at the L...
  • Page 9 Note See Appendix A for more information on the Symetrix RC-2 remote controller. - When connected to the Symetrix RC-2 remote controller, this EMOTE ONTROL ROGRAM Euroblock terminal connector allows remote selection of the active P , overriding the ROGRAM...

  • Page 10: Chapter 6 Applications

    P ROGRAM NPUT Using Multiple Program Sources The 440 provides program inputs for up to three stereo program sources, such as satellite feed, cassette tape deck, CD player, radio, etc. P 1 and 2 use unbalanced RCA connec- ROGRAM NPUTS tors for left and right channels.

  • Page 12: Chapter 7 Troubleshooting

    Is the distortion occurring in both the paging signal and in the program material signal? If the distortion is occurring only in the paging signal, check your paging source. If your paging source is line-level, make sure that you connected it to the 440 s Line Page Input, not the Mic Page Input.
  • Page 13 Check input signal levels. The input may be too low in level. If so, boost the incoming signal. If the incoming page signal to the 440 is Mic level, make sure that the page source is connected to the Mic Page Input, not the Line Page Input.

  • Page 14: Chapter 8 Specifications

    The unit shall occupy a single rack space (1U). The 440 shall provide separate mic-level and line-level page inputs. The mic-level page input shall be balanced and low-impedance, and shall use one XLR connector. The mic-level page input shall also have a rear-panel pushbutton which shall apply +15V phantom power to the mic-level page input.

  • Page 15: Specifications

    +20dBm into 600 Ohm load Output Impedance 200 Ohms Unbalanced, 400 Ohms Balanced In the interest of continuous product improvement, Symetrix, Inc. reserves the right to alter, change, or modify these specifications without prior notice. ©1999, Symetrix, Inc. All rights reserved.

  • Page 16: Chapter 9 Block Diagram

    Block Diagram Chapter 9...

  • Page 17: Chapter 10 Warranty And Service

    Symetrix reserves the right to refund a prorated portion of the purchase price in full satisfaction of all warranty claims. In order to serve you better we require that the Buyer shall, prior to shipping Product to Symetrix for warranty service, contact Symetrix and secure a Return Authorization Number that shall be included with the returned Product.
  • Page 18 Servicing the 440 If you have determined that your 440 requires repair services and you live outside of the United States, please contact your local Symetrix dealer or distributor for instructions on how to obtain service. If you reside in the U.S. then proceed as follows: Before sending anything to Symetrix, contact our Customer Service Department for a return authorization (RA) number.
  • Page 19 IGHT UTPUTS EMOTE OCAL rear of the 440 is set to the Remote position. Optionally, the 440 may be modified so that the control sets the overall gain of the program material only (not the paging signal). UTPUT EVEL Please see Appendix B for modification instructions.
  • Page 20 PRE-INSERT , POST-INSERT and POST-TONE . (See next page for circuit board illustration.) The 440 is shipped from the factory with a jumper in the Pre-insert position. Remove this jumper by grasping its sides and pulling straight up (needle-nosed pliers may be helpful).
  • Page 21 ß second to 4 seconds. It is factory set to release at ß ELEASE second. Rotating this control clockwise will increase the release time (and vice-versa). Replace the top cover. Reinstall the 440 and connect the input and output connectors. THRESH R19 R22 RELEASE Figure B-4.

  • Page 22: Declaration Of Conformity

    Declaration of Conformity We, Symetrix Incorporated, 6408 216th St. SW, Mountlake Terrace, Washington, USA, declare under our sole responsibility that the product: 440 Foreground Audio Controller to which this declaration relates, is in conformity with the following standards: EN 55103-1 Electromagnetic compatibility - Generic emission standard Part 1: Residential, commercial, and light industry.
  • Page 24 Symetrix, Inc. 6408 216th St. SW Mountlake Terrace, WA, 98043 Tel: (425) 778-7728 Fax: (425) 778-7727 Web site: www.symetrixaudio.com Email: symetrix@symetrixaudio.com...

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