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Table of Contents
Troubleshooting
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Summary of Contents for Lexicon GX-7
- Page 1 GX-7 Power Amplifier User Guide...
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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 another apparatus (including amplifiers) that produces heat. - Page 3 Tel: 781-280-0300 Fax: 781-280-0499 Lexicon and the Lexicon logo are registered trademarks of Harman International Industries, Inc. U.S. Patent Nos. D454,553; Email: csupport@hsgav.com D454,860; 5,796,844; 5,870,480 and other worldwide patents issued and pending. © 2006 Harman International Industries, Incorporated. All rights reserved.
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Page 4: Documentation Conventions
Introduction DOCUMENTATION CONVENTIONS This document contains general safety, installation and operation instructions for the GX-7 Power Amplifier. It is important to read this user guide before attempting to use the product. Pay particular attention to safety instructions. The following symbols are used in the document:... -
Page 5: Table Of Contents
GX-7 Table of Contents Getting Started About The GX-7 ... 1-2 Highlights ... 1-3 Product Registration ... 1-3 Installation Considerations... 1-3 Basic Operation Front Panel Overview ... 2-2 Rear Panel Overview ... 2-3 Power Control Connections ... 2-5 Protection Mode ... 2-6 Troubleshooting &... -
Page 7: Product Registration
Getting Started About The GX-7 ... 1-2 Highlights ... 1-3 Product Registration ... 1-3 Installation Considerations... 1-3... - Page 8 Getting Started Lexicon ABOUT THE GX-7 Thank you for purchasing a Lexicon Power Amplifier. The GX-7 is a high-performance power amplifier designed to meet the rigorous demands of today’s home theater installations. It is designed with full complementary circuitry from input to output. It includes a high-current power supply driven by a massive, custom-designed, toroidal transformer with two separate windings for each channel.
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Page 9: Getting Started
GX-7 on a solid, flat, level surface such as a table or shelf. The GX-7 can also be installed in a standard 19-inch equipment rack using an optional rack-mount kit available from an authorized Lexicon dealer. -
Page 11: Basic Operation
Basic Operation Front Panel Overview ... 2-2 Rear Panel Overview ... 2-3 Power Control Connections ... 2-5 Protection Mode ... 2-6... -
Page 12: Front Panel Overview
LED is red. Power is still supplied to the GX-7 when it is in standby mode. When the unit is in standby, pressing the standby/on button activates the power amplifier. When the GX-7 is activated, the front panel LED is blue. -
Page 13: Rear Panel Overview
GX-7 REAR PANEL OVERVIEW The GX-7 rear panel is shown below. The numbers in the rear panel illustrations correspond with the numbered description items. RIGHT RIGHT SIDE GX-7 LEXICON, INC. DESIGNED AND ASSEMBLED IN U.S.A. SERIAL NO. — — RIGHT RIGHT SIDE 1. - Page 14 Set this switch to off when making or breaking connections to the amplifier. To power on the GX-7, press the rear panel master power switch. When powered on, the front panel LED will light. There will be a short pause from the time the power is turned on until the output is sent to the speakers.
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Page 15: Power Control Connections
Switched Outlet is available on the source device rear panel. To control the GX-7 in this instance, a small AC to DC power converter capable of delivering a 6 to 12 volt DC signal is required. -
Page 16: Protection Mode
POWER CONNECTION SAFETY After all audio and system connections have been made, connect the power cord to an AC power source. Be sure that the GX-7 is powered off and that the device connected to the remote trigger input is off when connecting the power cord and plugging it in to an AC outlet. -
Page 17: Troubleshooting & Maintenance
Troubleshooting & Maintenance Troubleshooting...3-2 Maintenance...3-2... -
Page 18: Troubleshooting
Verify the trigger cable is connected at both ends. If all else fails. . . 1. Contact an authorized Lexicon dealer. 2. Contact Lexicon Customer Service at 781-280-0300 or send an email to: csupport@hsgav.com. Note: Visit the knowledgebase at http://www.lexicon.com/kbase for answers to frequently asked questions and additional troubleshooting information. -
Page 19: Appendix
Appendix Specifications ... A-2 Declaration of Conformity... A-3... -
Page 20: Specifications
Minimum 10kOhms Gain Minimum 28dB Other Trigger Input 5 to 12 Volts DC ± 10%, 3.5mm T/S jack Power Requirements 120V 60Hz 10 Amp [1200W] (domestic) 230V 50Hz 4 Amp [920W] (export) Height 5-inches Width 16.2-inches Depth 19.5-inches (including handles) 17.12-inches (not including handles) -
Page 21: Declaration Of Conformity
3 Oak Park Bedford, MA 01730-1413 USA The equipment identified here conforms to the Directive(s) and Standard(s) specified above. Type of Equipment: Power Amplifier Model: Lexicon GX-7 Date: May 2006 Harman Specialty Group Vice President of Engineering 3 Oak Park... -
Page 23: Limited Warranty
United States, its reinstalling the unit. Lexicon’s liability is limited to the repair territories, and Canada and does not apply to products or replacement, at our option, of any defective product and purchased elsewhere. - Page 24 A Harman International Company Part No. 070-18129 | Rev 1...
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