Lexicon CX-5 Stereo Amplifier User Manual
Contents
1. jii A Auspackend und Inspektion iji meget 1 3 Desempaquetando e Inspecci n iji Installation 5 4 1 3 D baller et Inspection ili Spacchettando Ispezione ii Section 2 Basic Operation Desempacotando e Inspec3O iji Front Panel Overview 22 Rear Panel 2 4 Protection lt 2 8 Thermal Protection Current Protection DC Protection Section 3 Troubleshooting and Maintenance Troubleshooting 3 2 Maintenance 3 3 Appendix lt 5 2 Declaration of A 3 Index CX Power Amplifiers Introduction UNPACKING AND INSPECTION After unpacking the unit save all packing materials in case the unit ever needs to be shipped Thoroughly inspect the modules and packing materials for signs of damage Report any damage to the carrier at once report equipment malfunction to the dealer AUSPACKEND UND INSPEKTION Uberpr fen Sie die Verpackung auf Besch digung Nehmen Sie das Ger t aus der Verpackung Heben Sie das gesamte Verpackungsmaterial auf falls das Gerat einmal verschickt werden muss2. AC Input Connector 2 5 Installation ConsiderationS 1 3 Table of Contents ji AC Power COTO e racicas do Sed ee eae 2 7 CX Power Amplifiers About 1 2 to 1 3 Thermal Protection 2 8 BAL UNBAL Switch 2 5 2 7 3 2 Maintenance 3 3 TRIGGER INPUT 2 7 3 2 Channel StatusLEDs 2 2 2 3 2 8 2 9 3 2 Male Cable End XLR 2 5 Illustration TRIGGER INPUT Switch 2 7 3 2 Connectors 2 4 2 5 2 6 3 2 OUTPUT ce enna 2 4 2 5 2 6 2 7 2 8 2 9 Troubleshooting 3 2 to 3 3 Cooling Sytem 2 8 Power Outage 3 2 UNBAL BAL Switch 2 5 2 7 3 2 Current Protection 2 8 Power Switch 2 5 3 2 Unpacking Instructions iii DC Protection 2 8 Product Registration 1 3 Warranty Inside Back Cover Declaration of Conformity A 3 Protection Modes 2 8 XLR Connectors 2 5 2 7 3 2 Documentation Conventions RCA Connectors 2 5 2 7 3 2 XLR Male Cable End 2 5 Illustration Front Pane
3. careful when moving the CX Power Amplifiers CAUTION which are quite heavy e not obstruct the ventilation holes in the chassis 1 3 2 Basic Operation Front Panel Overview aaao a a a a ee ee eee eee eae 2 2 Rear Panel Overview 1 eee ee eee eee eae 2 4 Protection Modes 0 0 cc ee ee eee eae 2 8 Thermal Protection Current Protection DC Protection Basic Operation FRONT PANEL OVERVIEW 1 2 2 Standby Button Activates and deactivates standby mode when the CX amplifi er is powered on with the rear panel power switch The stand by button performs no function when the CX amplifier is pow ered off with the rear panel power switch or when the trigger switch is set to ON or DELAY see page 2 7 for more detail When the unit is on pressing the standby button activates standby mode and deactivates the CX amplifier When the unit is in standby pressing the standby button deactivates standby mode and activates the CX amplifier The red standby button LED will flash for approximately seven seconds Then the blue Lexicon channel status LEDs will light If the red standby button LED flashes rapidly and the blue channel status LEDs do not light the incoming AC voltage is too low or the temperature of the transformer is too high Refer to Section 3 for troubleshooting information Note e Power is still supplied to the CX amplifier when standby mode is activated CX Power Amplifiers
4. may be provided by sore states Customer Support Tel 781 280 0300 Fax 781 280 0495 Sales Fax 781 280 0499 Service BUSINESS REPLY MAIL FIRST CLASS MAIL PERMIT NO 67 BEDFORD MA POSTAGE WILL BE PAID BY ADDRESSEE PRODUCT REGISTRATION HARMAN SPECIALTY GROUP 3 OAK PARK BEDFORD MA 01730 9863 NO POSTAGE NECESSARY IF MAILED IN THE UNITED STATES Haman Specialty Group 3 Oak Park Bedford MA 01730 1413 USA Tel Z421 7 5 020500 781 280 0490 vwwhamanspecialtygroup com Fax Customer Support Tel 5357 5 0205 00 781 280 0495 Sales Fax 781 280 0499 Service Fax Part No 070 15879 Rev O 07 03 harman specialty group
5. again 2 Check the incoming line voltage It should not be more than 10 below the mains supply voltage indicated in the Specifications page A 2 One or more channels is not passing audio and the corresponding channel status LED is flashing blue 1 Reduce system volume level 2 Power the amplifier off Allow the amplifier to cool before powering it on again 3 If the problem persists after the amplifier has cooled contact an authorized Lexicon dealer or Harman Specialty Group Customer Service www harmanspecialtygroup com or 781 280 0300 The standby button does not appear to be functioning 1 Make sure the rear panel power switch 15 set to on 2 Make certain the rear panel TRIGGER INPUT switch is set to OFF Lexicon One or more channels is not passing audio but the corresponding channel status LED is lit blue 1 Reduce system volume level 2 Make sure the UN BAL BAL switch is set to the connector being used UNBAL for RCA and BAL for XLR Audio sounds out of phase 1 Check to ensure proper speaker wiring A humming sound is present in the audio 1 Set the GROUND LIFT switches to ON One or more channels is outputting distorted sound 1 Reduce system volume level 2 Make sure speakers have compatible impedance ratings see page 2 5 The TRIGGER INPUT is connected to an external device but the amplifer does not power on and off with the external device 1 Make sure the TRIGGER INPUT switch
6. berpr fen Sie alle Bestandteile auf Besch digung Verstandigen Sie sofort den Spediteur falls die Verpackung und oder die Bestandteile der Lieferung beschadigt sind Verstandigen Sie sofort Ihren Handler falls das Gerat nicht richtig funktioniert DESEMPAQUETANDO E INSPECCION Despu s de desempaquetar la unidad ahorra todos los materiales del embalaje en caso de que usted alguna vez necesita enviar la unidad Completamente inspeccione los m dulos y condensando los materiales para las se ales de da o Informe cualquier da o en seguida al portador el funcionamiento defectuoso de equipo de informe a su distribuidor D BALLER ET INSPECTI N Apres avoir d ball l unit sauve toutes les mati res de l emballage au Cas ou vous avez besoin jamais de transporter l unit Entierement inspectez les modules et emballer des mati res pour signes de d g t Rapportez tout d g t au porteur a la fois fonctionnement d fectueux du mat riel du rapport a votre revendeur SPACCHETTANDO ED ISPEZIONE Dopo avere spacchettato l unit mai salvi tutti materiali di imballaggio in caso che Lei ha bisogno inviare l unit Completamente ispezioni moduli e comprimendo materiali per segnali di danno Subito riporti alcun danno al corriere malfunzionamento di attrezzatura di rapporto al Suo rivenditore DESEMPACOTANDO E INSPE O Depois de desempacotar a unidade economiza todos os materiais de embalagem no caso de voc j prec
7. is set to ON or DELAY The amplifier and other electrical devices in the listening room suddenly lose power 1 Reset the circuit breakers for the affected device s If all else fails 1 Contact an authorized Lexicon dealer 2 Contact Harman Specialty Group customer service www harmanspecialty group com CX Power Amplifiers Note Visit www harmanspecialtygroup com for answers to frequently asked questions and additional trou bleshooting information MAINTENANCE The following routine maintenance should be performed on a periodic basis e Clean the exterior surfaces of the unit with a soft dry lint free cloth Do not use alcohol benzene acetone based cleaners or strong commercial cleaners Do not use a cloth made with steel wool or metal polish If the unit is exposed to a dusty environment a low pressure blower may be used to remove dust from its exterior Troubleshooting amp Maintenance 3 3 2 Declaration of Appendix Lexicon SPECIFICATIONS Audio Input Connectors Performance Continued 7 RCA 7 XLR IM Distortion Below 0 03 at 140W 80 5 RCA 5 XLR Crosstalk 80dB at 1kHz minimum Damping Factor 850 at 20Hz minimum Audio Output Connectors 7 pairs of gold plated binding posts Input Sensitivity 2V input for 100W output at 5 pairs of gold plated binding posts balanced inputs e 1V input f
8. Basic Operation 2 Channel Status LEDs Provide an at a glance view of the status of each channel as indicated in the table below Constant Blue Normal Operation Constant Bright Blue Indicates the audio signal is clipping Reduce volume level to help Note eliminate potentially damaging audio signals from reaching the speakers When the main power transformer temperature exceeds 100 C The temperature of the individual amplifier heatsink is above 95 C If this the transformer will deactivate Flashing Blue occurs the channel will not pass audio The channel status LED will return channel status LEDs will no longer be lit to constant blue when the temperature of the amplifier card returns to the red standby LED will flash rapidly normal Then the channel will automatically resume passing audio The temperature of the chassis is above 58 C and the amplifier will no longer pass audio After the chassis temperature returns to normal all the channel status LEDs will return to constant blue and the amplifier will resume normal operation All Channels Flashing Blue Basic Operation Lexicon REAR PANEL OVERVIEW The CX 7 rear panel is shown above The CX 5 rear panel is shown on page 2 6 The rear panels are similar except the CX 7 amplifier includes two additional channels WARNING External wiring connected to connectors marked with the E icon pictured at the left requires installation by a qu
9. CX Power User Guide harman specialty group IMPORTANT SAFETY INSTRUCTIONS 1 Read these instructions 2 Keep these instudiors 3 Heed all wamings 4 Follow all instuctors 5 Do not use this apparatus near water 6 Clean only with a dry doth 7 In CE counties this is considered professional equipment In order to comply with CE requirements the custorrer is required to obtain permission fromthe local supply authority before connecting this equipment 8 Do not block any ventilaton openings Install in accordance wth the manufacturers instructions 9 Do nct install near any heat sources such as radiators heat registers stoves or other apparatuses that produce heat 10 Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and third grounding prong The wide blade or the third prong is provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacenrent of the obsolete outlet 11 Protect the power cord frombeing welked on or pinched particularly at plugs convenience receptacles and the point where they exit fromthe apparatus 12 Only use attachrrerts accessories specified by the manufacturer Use only with a cart stand bracket or table specified by the manufacturer or sold wth the apparatus a cart is used use ca
10. alified person or the use of ready made leads or cords 2 4 CX Power Amplifiers 1 Power Switch Disconnects power to the AC Input Connector Set this switch to off when making or breaking connections to the amplifier AC Input Connector The AC input connector provides power to the unit with the Supplied power cord 3 conductor 14AWG Do not use an extension cord For optimal performance use an isolated power receptacle with adequate current at least 15 Amps Line voltages gt 10 above the specified voltage may damage the amplifier Line voltages 10 below the specified voltage may cause the amplifier to enter a protection mode indicated by the red standby LED flashing INPUT 1 to 7 CX 7 or 1 to 5 5 Provide audio input for the speakers connected to the corresponding audio outputs When using the unbalanced RCA audio inputs make sure the UNBAL BAL switch located below each XLR connector is set to UNBAL When using the balanced XLR audio inputs make sure the UNBAL BAL switch is set to BAL The illustration below shows the appropriate cable pin out for XLR connectors Male Cable End Basic Operation 4 OUTPUT 1 to 7 CX 7 or 1 to 5 CX 5 Provide audio output for the speakers OUTPUT connectors can accept bare speaker wires banana plug connectors or certain spade connectors When using bare speaker wires loosen the connector insert the wire into the top of the receptacle then tighten the
11. connector The same procedure should be used for spade connectors Banana plugs should be inserted into the outward facing receptacle Use heavy gauge speaker cable to ensure low impedance connections between the amplifier and the speakers Observe correct speaker polarity WARNING Do not connect the OUTPUTs of one channel to the OUTPUTs of other channels or to other amplifiers Note Speakers must have impedance ratings of 29 or higher Using speakers with lower than recommend ed impedance ratings might activate protection modes continued on page 2 7 2 5 Basic Operation Lexicon REAR PANEL OVERVIEW continued The CX 5 rear panel is shown above The CX 7 rear panel is shown 2 4 Both similar except the CX 7 features two additional 6 2 1 channels icon pictured at the left requires installation by a 5 WARNING External wiring connected to connectors marked with the qualified person or the use of ready made leads or cords 2 6 CX Power Amplifiers continued from page 2 5 5 UNBAL BAL Switch Selects between unbalanced RCA or balanced XLR audio input for each channel Power the amplifier off or reduce sys tem volume before changing the setting of the UNBAL BAL switch If the amplifier is connected to a digital controller such as the MC 12 or MC 8 output levels should be re calibrated whenever the setting is changed GROUND LIFT Switches When set to ON iso
12. e appears across the output transistors Inversely this means that the more output voltage available the more current capabili ty available which translates into higher power output In addition to the voltage and current thermal protection the CX amplifiers have a time dependent instantaneous current limit The amplifier is capable of delivering 20 amps peak into a load for a short duration of time DC PROTECTION Each channel includes DC protection to prevent DC and frequen cies below 10Hz from reaching the speakers If this protection activates the output relay will open and the corresponding front panel channel status LED will flash blue After approximately 4 sec onds DC protection will be automatically deactivated The relay will close and the corresponding channel status LED will return to constant blue If DC or frequencies below 10Hz are still present DC protection will be automatically reactivated The amplifier will continue to engage this protection until the problem is no longer present 3 Troubleshooting amp Maintenance TOUDI NOON sis errada eee od eee weed eee ena 3 2 Maintenance ee ee eee eee 3 3 Troubleshooting amp Maintenance TROUBLESHOOTING No front panel LEDs are lit 1 Make sure the unit is plugged in and the rear panel power switch 15 set to on The red Standby LED is flashing rapidly 1 Power the amplifier off Allow the amplifier to cool before powering it on
13. e carrier of our choice 2 Pack the unit securely Package insurance is strongly reconrrended Harman Specialty Group Tel 781 280 0300 3 Oak Park Fax 781 280 0490 Bedford MA 01730 1413 USA vwwhanranspedalty group com 3 Indude a copy of the original dated sales receipt A copy of the original dated sales receipt must be presented whenever warranty service is required 4 Do not indude accessories such as power cords or user guides unless instructed to do so What are the Limitations of Implied Warranties Ary inplied warranttes including vwarrantes of merchantability and fitness for a particular purpose are limited in duration to the length of this warranty What Certain Damages are Excluded Harman Specialty Group s liability for a defective product is limited to repair or replacement of that product at our option Harman Specialty Group shall not be liable for darrages based on inconvenience loss of use of the proc uct loss of time interrupted operation loss or any other darrages whether incidental consequential or otherwise How do State Laws Relate to this Warranty Sone states do not allow linitations on the duration of implied warantes and or the exdusion or linitaton of incidental or consequential darrages As such the above limitations may not apply This werranty is not enforceable outside of North This werranty provides specific legal rights Additional rights
14. ectrical failures such as short circuits device failures internal faults and DC output to the speakers THERMAL PROTECTION The amplifier includes thermal protection for each channel the main power transformer and chassis If a heatsink temperature exceeds 95 C the channel will deactivate and the corresponding channel status LED will flash blue When the heatsink cools to normal operating temperature the channel will automatically reac tivate and the corresponding channel status LED will return to constant blue If the amplifier chassis exceeds a temperature of 58 C the amplifi er will shut down all channels and all the channel status LEDs will flash blue When the chassis cools to normal operating tempera ture all of the channels will automatically reactivate and the chan nel status LEDs will return to steady blue If the main power transformer temperature exceeds 100 C the transformer will deactivate all channel status LEDs will no longer be lit and the red standby LED will flash rapidly Once the trans former has cooled it will automatically be reset and the amplifier will operate normally The channel status LEDs will return to constant blue and the red standby LED will no longer be lit Lexicon CURRENT PROTECTION The CX amplifiers use a combination of voltage and current infor mation to protect the output transistors The amount of current capable of being delivered to the load is dependent on how much voltag
15. ined in the user guide C Repair or attenpted repair unauthorized Haman Specialty Group D Failure to perfom reconnended periodic maintenance E Causes other than product defects including ladk of skill competence or experience on the part of the owner harman specialty group UM TED WARRANTY 2 Demeage occuring during any shiprrert of this product Claims for shipping damages must made wth the camier 3 Derrece to a unt that has been altered or on which the serial number has been defaced rrodified or removed What Expenses will Harman Specialty Group Assume Harman Specialty Group will pay all labor and maternal expenses for covered itens Payrrent of shipping charges is discussed in the next section of the warranty How is Service Obtained When this product needs service write telephone or fax Haman Specialty Group to request infomration about where the unit should be taken or sent When rraking a witen request please include your nane complete address and daytine telephone number the product model and serial numbers and a description of the problem Do not retum the unit to Haman Specialty Group without prior authorization When Shipping Product for Service 1 Pay any inital shipping charges which are the responsibility of the Owner If necessary repairs are covered by this waranty Harman Specialty Group will pay retum shipping charges to any destination in the United States using th
16. isa transportar a unidade Completamente inspecione os m dulos e empacotando materiais para sinais de dano Informe qualquer dano imediatamente ao portador mau funcionamento de equipamento de relat rio para seu negociante 1 Getting Started About the CX Power Amplifiers 1 2 Highlights Product REGISUAUON sais ros aa we ea oe ee eae eee A 1 3 Installation Considerations ee ee eee eee eee 1 3 Getting Started ABOUT THE CX POWER AMPLIFIERS Thank you for purchasing a CX Power Amplifier a reference quali ty amplifier which is based on the award winning LX amplifier and is designed to meet the highest standards of power and perform ance under even the most extreme operating conditions Equipped with advanced thermal current DC and speaker protection the CX amplifiers deliver reliable and exceptional performance with most loudspeakers including mismatched reactive and unusual loads In addition the CX amplifiers include protection against Short circuits component failures miswiring and internal faults Available in seven or five channel versions the CX amplifiers deliver high power performance Each 140 Watt channel includes four custom designed hand graded output transistors All chan nels are capable of driving speaker impedances of 2 and above Complemented by gold plated soeaker output connectors the rear panel inc
17. l 2 2 to 2 3 Rear Panel 2 4 to 2 7 3 2 e 2 2 Illustration ga wee te cadence 2 4 Illustration ars by ew dl ee 2 3 Illustration 5 2 6 Illustration GROUND LIFT Switches 2 7 3 2 Registration Product 1 3 INPUTS rossi on og 2 4 2 5 2 6 2 7 3 2 Safety Instructions Inside Front Cover i iii Inspection Instructions 1 3 2 4 2 6 2 7 LEDs Channel Status 2 3 3 2 SpecificationS A 2 Limited Warranty Inside Back Cover Standby Button 2 2 2 3 2 5 2 7 2 8 3 2 exicon Harman Specialty Group offers the following warranty on this product What is the Duration of this Warranty This waranty will remain in effect for five 5 years fromthe original date of purchase Who is Covered This werranty may be enforced by the original purchaser and subsequent owners during the werranty period provided the original dated sales receipt or other proof of coverage is presented at time of service What is Covered This warranty covers all defects in rretenal and workmanship on this product except as specified below The following are not covered 1 Damage resulting from A Accident misuse abuse or neglect Failure to follow instructions conta
18. lates the ground connection between that channel s audio inputs and the chassis This can be useful for eliminating audible hum or noise caused by multiple grounding paths in the system When set to OFF the audio input is grounded to the chassis This switch should be set to ON whenever there is ground noise present in the system WARNING Po not defeat or remove the ground prong on the AC power cord This will result in a safety hazard and will not reduce audible hum The GROUND LIFT switches have no affect on the safety ground of the amplifier 7 8 Basic Operation TRIGGER INPUT Enables the amplifier to be controlled by the MC 12 MC 8 or other external devices with a 12V DC trigger output Connect the trigger output of the external device to the TRIGGER INPUT of the amplifier and set the TRIGGER switch on the amplifier to ON or DELAY The amplifier will automatically resoond when the external device is powered on and off TRIGGER INPUT Switch When set to OFF the amplifier only powers on and off in response to the front panel standby button When set to ON or DELAY only the external device connected to the TRIGGER INPUT can be used to power the amplifier on and off The front panel standby button will not power the unit on and off However the standby LED still functions normally 2 7 Basic Operation PROTECTION MODES The CX amplifiers are equipped to protect against overheating and miswiring as well as el
19. ludes selectable balanced or unbalanced audio input via RCA and XLR connectors A trigger input connector allows the CX amplifiers to be controlled with associated components such as the MC 12 or MC 8 Digital Controller In addition a ground lift switch for each channel can be used to eliminate audible hum caused by multiple grounding paths The CX amplifiers include advanced thermal current and DC protection for each channel Thermal protection monitors the temperature of the chassis and heatsinks and automatically deacti vates the specific channel s when they exceed their normal safe Operating temperature Current protection ensures that the output transistors are protected by limiting the current capability which is determined by the output voltage while DC protection prevents DC and frequencies below 10Hz from reaching the speak ers Dedicated channel status LEDs are located on the front panel 1 2 Lexicon to provide at a glance viewing of channel status at all times With THX Ultra2 Certification the CX amplifiers are certified to meet the highest THX standards Advanced thermal current DC and speaker protection further guarantee exceptional performance under even the most extreme operating conditions Add to this incredible power and wide ranging flexibility and the CX ampli fiers are at home in the most sophisticated and demanding home theaters CX Power Amplifiers HIGHLIGHTS 140 Watts per channel Four custom de
20. ng to use these products Pay particular attention to safety instructions The following symbols are used in this document Appears on the component to indicate the presence of uninsulated dangerous voltage inside the enclosure voltage that may be sufficient to constitute a risk of shock Calls attention to a procedure practice condition or the like that if not correctly performed or adhered to could result In injury or death Calls attention to a procedure practice condition or the like that if not correctly performed or adhered to could result WARNING darrage to or destruction of part or all of the product Note Calls attention to information that is essential to highlight Manufactured under license from Ltd THX and Ultra2 are traderrarks or registered traderrarks of THX Ltd Lexicon and the Lexicon logo are registered traderrarks of Harman Intemational Industries U S patent numbers and other worldwide patents issued and pending 2003 Hanman Specialty Group All rights reserved This document should not be construed as commitrrent on the part of Haman Specialty Group The information it contains is subject to change without notice Harman Specialty Group assures no responsibility for errors that nay appear within this document Introduction Lexicon Introduction Section 1 Getting Started About the CX Power AmplifierS 1 2 Unpacking and Inspection
21. or LOOW output at 80 unbalanced inputs e 20kQ balanced Input Impedance 140W at 80 10kQ unbalanced Output Power all channels driven 20Hz to 20kHz 23dB balanced e e 29dB unbalaced Minimum Speaker Impedance Frequency 20Hz to 20kHz 0 1dB i Ae Response e 10Hz to 100kHz 0 5 3dB Trigger Input 10 Power Requirements 120V 60Hz 15 Amp domestic Below 0 02 at 140W 230V 50Hz 10 Amp export all channels driven 20Hz to 20kHz Weight e 7 52 8 Ibs 24 kg e CX 5 47 1 lbs 21 4 kg Signal to N oise 110dB Rati Optional brackets are available for mounting either j Rack Mounting amplifier in standard 19 inch equipment rack Ref 140W at 822 Specifications are subject to change without notice CX Power Amplifiers Appendix DECLARATION OF CONFORMITY Application of Council Directive s 89 336 EEC and 93 68 EEC Standard s to which Conformity is Declared EN 55103 1 1995 EN 61000 3 3 1995 EN 55022 1992 Class B EN 55103 2 1996 and EN 60065 1998 Manufacturer Harman Specialty Group 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 CX 7 and CX 5 Power Amplifiers Model Lexicon CX 7 and CX 5 Date July 2003 Harman Specialty Group Vice President of Engineering 3 Oak Park Bedford MA 01730 1413 USA Tel 781 280 0300 Fax 781 280 0490
22. signed hand graded output transistors per channel Oversized toroidal power transformer with extraordinarily low DC resistance and thermal protection High power supply voltage for extra headroom at the outputs Stable with mismatched reactive or unusual loads Compatible with 2 speaker impedances THX Ultra2 Certification Thermal protection against overheating Speaker protection against DC and frequencies below 10Hz Protection against short circuits device failures miswiring and internal faults Trigger input for power control from an external device RCA and XLR inputs GROUND LIFT switch per channel Gold plated input and output connectors Rack mount option available Getting Started PRODUCT REGISTRATION Please register the CX Power Amplifier within 15 days of purchase To do so register online at www harmanspecialtygroup com or complete and return the product registration card attached to the back cover of this user guide The product registration card serves no warranty purposes Retain the sales receipt as proof of warranty coverage INSTALLATION CONSIDERATIONS The CX Power Amplifiers require special care during installation to ensure optimal performance Leave at least 2 inches of open space around the top sides and rear of the amplifier for proper ventila tion If the amplifier is installed in an equipment rack an optional rack mount kit 15 available from Lexicon dealers or at www harmanspecialtygroup com e
23. ution when the cart apparatus combination to avoid injury fromtip over 14 Unplug this apparatus during lightning stoms or when unused for long periods of time 15 Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged any wey such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped 16 To reduce the risk of fire or electric shock do not expose this apparatus to rain or moisture voltage that may be sufficient to RISK OF ELECTRIC SHOCK accompanying literature constitute a risk of shock DO NOT OPEN This triangle which appears on your component This triangle which appears on your component alerts you to the presence of uninsulated C AUTI O N alerts you to important operating and dangerous voltage inside the enclosure maintenance instructions in this 3 Oak Park Bedford MA 01730 1413 USA Tel 781 280 0300 Fax 781 280 0490 vwwhanranspecialtygroup com Customer Support Tel 781 280 0300 Fax 781 280 0495 Sales Fax 781 280 0499 Service Part No 070 15879 RevO 07 03 harman specialty group DOCUMENTATION CONVENTIONS This document contains general safety installation and operating instructions for the CX 7 and CX 5 Power Amplifiers Itis important to read this user guide before atten ti
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