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Theta Digital Enterprise Owner's Manual

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THETA DIGITAL
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E n t e r p r i s e
Owner's Manual
Vers 1.01

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Summary of Contents for Theta Digital Enterprise

  • Page 1 THETA DIGITAL E n t e r p r i s e Owner’s Manual Vers 1.01...

  • Page 2: Preface

    In the unlikely event that you have to return your Enterprise to the factory or dealer for service or updating, the original packaging will best protect the unit from shipping damage.
  • Page 3 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 significant magnitude to constitute a risk of electric shock to persons. 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 product.

  • Page 4: Enterprise Identification Record

    Enterprise Identification Record This information is for your records and for future identification of the Enterprise. Please take a moment to fill out all pertinent data now, and as upgrades and/or options are installed. Whenever upgrades, inquiries and/or changes are requested, the serial number will be required.

  • Page 5: Safety Precautions

    (which will also not be covered under warranty), please verify that the screws being used to secure non-Theta feet do not screw any deeper into the chassis than the original ones. The original screw is 1/4-20 by 1/2 and goes into the chassis 1/8 inch.

  • Page 6: Table Of Contents

    PREFACE ................................ii WARNING ..............................iii Enterprise Identification Record ........................iv SAFETY PRECAUTIONS ..........................v INTRODUCTION..............................1 Getting to know your Enterprise ........................1 Burn-In/Break-In Time ............................ 1 Reference Manual Conventions ........................1 IMPORTANT NOTICE............................ 2 Enterprise Block Diagram..........................3 Front Panel Layout ............................4 Rear Panel Layout............................

  • Page 7: Introduction

    Enterprises meet visual specifications. The front panel of the Enterprise is manufactured in two versions – a left and a right, as shown in figure 3. A left version has the tower on the right side of the faceplate and is intended to be placed on the left side of the room.

  • Page 8: Important Notice

    IMPORTANT NOTICE It is imperative that the Enterprise be connected to a ground via its three wire AC power cord. It is important that the AC power outlet, which the Enterprise is plugged into, is actually grounded. Failure to do so will severely compromise the performance, reliability and safety of use of the Enterprise.

  • Page 10: Front Panel Layout

    2. STANDBY LED. Illuminates red when the power amplifier is in STANDBY, green when the amplifier is active. 3. STANDBY button. After the rear panel MAIN POWER switch is turned on press the front panel Theta logo button to exit the standby mode. The Enterprise will come out of standby.
  • Page 11 Figure 3 - Front Panel of a LEFT and RIGHT Enterprise...

  • Page 12: Rear Panel Layout

    12. STANDBY REMOTE TRIGGER jack. When the rear panel STANDBY TRIGGER jack receives a 5-12 VDC pulse the Enterprise will change its mode from either standby to operate, or operate to standby, depending on its current state. 13. MAIN POWER switch. Master power switch. Disconnects AC to all circuits. It is recommended that this be left ON at all times during regular use with the exception of whenever cables are connected/disconnected or when the unit is not going to be used for an extended period of time.

  • Page 13: Operation

    Enterprise does NOT have internal circuitry with a common ground. Connect a 12V pulse trigger source to the STANDBY trigger input of the Enterprise, if it is desired to be taken in and out of standby via another device.

  • Page 14: Appendix A Troubleshooting Guide

    Appendix A Troubleshooting Guide If the Enterprise should function abnormally during operation, please review the items in the following checklist. Please be sure to thoroughly check all other connected components such as speakers and preamplifiers, as well as cables. Symptom...

  • Page 15: Appendix B Wiring Diagram

    ------------ = optional connection. WARNING: The Enterprise is a balanced bridge amplifier, thus the negative speaker terminal is NOT a ground and cannot be connected to a ground or a loudspeaker system with a common ground. Consult your speaker manufacturer to ensure...

  • Page 16: Appendix Crs232 Protocol

    Ø1 ØØ ØØ ØØ DEXIMAL 254 2Ø8 Ø1 ØØ ØØ ØØ ** In this example the header ID is set to the Front Left Enterprise. Replace this data to match the ID of the Enterprise to be controlled, if different.
  • Page 18 RS232 Hardware Connections Figure 6 – Enterprise RS232 Jack Pinout...

  • Page 19: Rs232 Jumper Settings

    RS232 Jumper Settings Note: Changing the RS232 jumper settings must be done by an authorized Theta Dealer or Installer ONLY. Removing the cover of the amplifier in all other cases will void the warranty and can cause an electric shock. Please see warnings on page ii.

  • Page 20: Appendix D Specifications

    Appendix D Specifications Inputs: Analog audio: 1 Single-ended RCA jack. 1 Balanced (XLR) jack. Input Impedance: 50 K Single-Ended or Balanced, for each phase. Input sensitivity: (Single-Ended) 2.8V RMS input for 300W into 8 ohms. (Balanced) 1.4V RMS input for 300W into 8 ohms. Gain: (Single-Ended) 25dB (18x).
  • Page 21 If the purchaser registers the unit with Theta by mailing in the warranty card, together with a copy of the bill of sale, within 14 days of the date of purchase, said purchaser will be registered for an extended service contract.

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