Lexicon lx-7 User Manual
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Lexicon lx-7 User Manual

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  • Page 1 User Guide...

  • Page 2: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions. Do not use this apparatus near water. Clean only with a dry cloth. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatuses that produce heat.
  • Page 3 781-280-0495 (Sales) 781-280-0499 (Service) This document should not be construed as a commitment on the part of Lexicon, Inc. The information it contains is subject to change without notice. Lexicon, Inc. assumes Lexicon Part No. 070-14876 | Rev 2 | 02/02...

  • Page 4: Table Of Contents

    Introduction Lexicon Introduction Section 1: Getting Started About the LX Power Amplifiers ..... . . 1-2 Highlights Unpacking and Inspection ..... .iii Product Registration .

  • Page 5: Introduction

    Introduction LX Power Amplifiers DÉBALLER ET INSPECTIÓN UNPACKING AND INSPECTION Après avoir déballé l'unité, sauve toutes les matières de l'emballage After unpacking the unit, save all packing materials in case the unit au cas où vous avez besoin jamais de transporter l'unité. ever needs to be shipped.

  • Page 6: Section 1: Getting Started

    Getting Started About the LX Power Amplifiers ......... 1-2 Highlights Product Registration .

  • Page 7: About The Lx Power Amplifiers

    The LX amplifiers offer high-power output that can be configured are designed to meet the highest standards of performance and for almost any system. The LX-7 has seven 200W channels, and the sound quality. In addition, THX Ultra Certification ensures that the LX-5 has five 200W channels.

  • Page 8: Product Registration

    This LX Power Amplifier can be registered by returning the Product Registration card attached to the back cover of this user guide or • Four custom designed, hand-graded output transistors per by visiting www.lexicon.com. Please also retain the bill of sale, channel which represents proof of purchase and warranty. •...
  • Page 9 Basic Operation Front Panel Overview ..........2-2 Rear Panel Overview .

  • Page 10: Front Panel Overview

    Basic Operation Lexicon FRONT PANEL OVERVIEW 1. Standby Button Note: Toggles the amplifier between on and standby. When the If the red standby LED flashes rapidly and the blue amplifer is on, pressing this button places it into standby and channel status LEDs do not light, the incoming AC lights the red standby LED.
  • Page 11 Basic Operation LX Power Amplifiers 2. Channel Status LEDs the channel will automatically resume outputting audio. See Section 3 for troubleshooting information. Indicate the status of each channel as follows: • Constant red indicates a fault in the channel. See Section 3 •...

  • Page 12: Rear Panel Overview

    Basic Operation Lexicon REAR PANEL OVERVIEW The LX-7 rear panel is pictured above. The LX-5 rear panel is pictured on page 2-6. Both are identical, except the LX-7 features two additional channels. External wiring connected to connectors marked with the...
  • Page 13 Basic Operation LX Power Amplifiers 1. Power Switch 4. OUTPUT 1 to 7 (LX-7) or 1 to 5 (LX-5) Disconnects power to the AC Input Connector. Set this switch Provide audio output for the speakers. OUTPUT connectors can to off when making or breaking connections to the amplifier, accept bare speaker wires, banana plug connectors, or certain or when changing the setting of the MODE switch.
  • Page 14 Basic Operation Lexicon REAR PANEL OVERVIEW (continued) The LX-5 rear panel is pictured above. The LX-7 rear panel is pictured on page 2-4. Both are identical, except the LX-7 features two additional channels. External wiring connected to connectors marked with the...
  • Page 15 Basic Operation LX Power Amplifiers 5. MODE Switch 8. TRIGGER INPUT (continued from page 2-5) Make sure the amplifier is powered off when the MODE switch Enables the amplifier to be controlled by the MC-12 or setting is changed. other external devices with a 12V DC trigger output. Connect the trigger output of the external device to the TRIGGER INPUT of the amplifer, and set the TRIGGER switch on the amplifier to INPUTs and OUTPUTs used in (BRIDGED) mode are labelled in...

  • Page 16: Cooling System

    Basic Operation Lexicon COOLING SYSTEM JTS’s dynamic nature enables it to avoid the problems inherent in competing products that rely only on heatsink temperatures. The LX Power Amplifiers use temperature-controlled fans to Heatsink temperatures do not always correlate to the temperatures exhaust heat.
  • Page 17 Basic Operation LX Power Amplifiers DC PROTECTION Each channel includes DC protection to prevent DC and frequencies below 10Hz from reaching the speakers. If this protection activates, the output relay will click off and the corresponding front panel channel status LED will no longer be lit. After approximately 4-seconds,...
  • Page 18 Troubleshooting & Maintenance Troubleshooting ........... . 3-2 Maintenance .

  • Page 19: Troubleshooting

    2. Check the airflow around the amplifier and take the following measures: A channel status LED is lit red. • Provide additional cooling. 1. Contact an authorized Lexicon dealer or Lexicon customer • Make sure speakers have adequate impedance ratings (see service. page 2-5).

  • Page 20: Maintenance

    The amplifier and other electrical devices in the listening room suddenly lose power. 1. Reset the circuit breaker for the listening room. If all else fails . . . 1. Contact an authorized Lexicon dealer. 2. Contact Lexicon customer service. Note: Visit www.lexicon.com for answers to frequently asked questions and additional troubleshooting information.

  • Page 21: Appendix

    Appendix Specifications ............A-2 Declaration of Conformity .

  • Page 22: Specifications

    Appendix Lexicon SPECIFICATIONS Audio Inputs Performance (continued) Other LX-7 7 RCA, 7 XLR (including Frequency 20Hz to 20kHz ±0.1dB Trigger Input 12V DC +/- 10% 1/4-inch tip/ring/sleeve) Response 10Hz to 100kHz +0.5/-3dB Power 120V 60Hz 20A LX-5 5 RCA, 5 XLR (including Below 0.02%,...

  • Page 23: Declaration Of Conformity

    Lexicon, Inc. 3 Oak Park Bedford, MA 01730-1441 USA The equipment identified here conforms to the Directive(s) and Standard(s) specified above. Type of Equipment: LX-5 and LX-7 Power Amplifiers Model: Lexicon LX-5 and LX-7 Date: September 1, 2001 Lexicon, Inc.

  • Page 24: Index

    Troubleshooting .....3-2 to 3-3 LX-7 ..... . .2-2 (Illustration) Product Registration .

  • Page 25: Limited Warranty

    How is Service Obtained? What Certain Damages are Excluded? When this product needs service, write, telephone, or fax Lexicon’s liability for a defective product is limited to repair or What is Covered? Lexicon, Inc. to request information about where the unit replacement of that product, at our option.
  • Page 26 Lexicon, Inc. 3 Oak Park Bedford, MA 01730-1441 USA 781-280-0300 781-280-0490 www.lexicon.com Customer Support 781-280-0300 781-280-0495 (Sales) 781-280-0499 (Service) Lexicon Part No. 070-14876 | Rev 2 | 02/02...

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