Crown Audio MA-2402 operation manual Service

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MA 2402 Power Amplifier

10 Service

Crown amplifiers are quality units that rarely require ser- vicing. Before returning your unit for service, please con- tact Crown Technical Support to verify the need for servicing.

This unit has very sophisticated circuitry which should only be serviced by a fully trained technician. This is one reason why each unit bears the following label:

CAUTION: To prevent electric shock, do not remove covers. No user serviceable parts inside. Refer servicing to a qualified technician.

Complete the Crown Audio Factory Service Information form, in the back of this manual, when returning a Crown product to the factory or authorized service center. The form must be included with your product inside the box or in a packing slip envelope securely attached to the outside of the shipping carton. Do not send this form separately.

10.1 International and Canada Service

Service may be obtained from an authorized service cen- ter. (Contact your local Crown/Amcron representative or our office for a list of authorized service centers.) To obtain service, simply present the bill of sale as proof of purchase along with the defective unit to an authorized service center. They will handle the necessary paperwork and repair.

Remember to transport your unit in the original factory pack.

10.2 US Service

Service may be obtained in one of two ways: from an authorized service center or from the factory. You may choose either. It is important that you have your copy of the bill of sale as your proof of purchase.

10.2.1 Service at a US Service Center

This method usually saves the most time and effort. Sim- ply present your bill of sale along with the defective unit to an authorized service center to obtain service. They will handle the necessary paperwork and repair. Remem- ber to transport the unit in the original factory pack. A list of authorized service centers in your area can be obtained from Crown Factory Service, or online from http://www.crownaudio.com/support/servcent.htm.

10.2.2 Factory Service

Crown accepts no responsibility for non-serviceable product that is sent to us for factory repair. It is the owner’s responsibility to ensure that their product is ser- viceable prior to sending it to the factory. Serviceable product list is available at http://crownweb.crownintl.com/crownrma/.

For more information, please contact us direct.

A Service Return Authorization (SRA) is required for product being sent to the factory for repair. An SRA can be completed online at www.crownaudio.com/support/ factserv.htm. If you do not have access to the web, please call Crown’s Customer Service at 574.294.8200 or 800.342.6939 extension 8205.

For warranty service, we will pay for ground shipping both ways in the United States. Contact Crown Customer Service to obtain prepaid shipping labels prior to send- ing the unit. Or, if you prefer, you may prepay the cost of shipping, and Crown will reimburse you. Send copies of the shipping receipts to Crown to receive reimbursement. Your repaired unit will be returned via UPS ground. Please contact us if other arrangements are required.

10.2.3Factory Service Shipping Instruc-

tions:

1.Service Return Authorization (SRA) is required for product being sent to the factory for service. Please complete the SRA by going to www.crownaudio.com/support/factserv.htm. If you do not have access to our website, call 1.800.342.6939, extension 8205 and we'll create the SRA for you.

2.See packing instructions that follow.

3.Ship product to:

CROWN AUDIO FACTORY SERVICE 1718 W MISHAWKA RD. ELKHART, IN 46517

4.Use a bold black marker and write the SRA number on three sides of the box.

5.Record the SRA number for future reference. The SRA number can be used to check the repair status.

10.2.4 Packing Instructions

Important: These instructions must be followed. If they are not followed, Crown Audio, Inc. assumes no respon- sibility for damaged goods and/or accessories that are sent with your unit.

1.Fill out and include the Crown Audio Factory Ser- vice Information sheet in the back of this manual.

2.Do not ship any accessories (manuals, cords, hard- ware, etc.) with your unit. These items are not needed to service your product. We will not be responsibility for these items.

3.When shipping your Crown product, it is important that it has adequate protection. We recommend you use the original pack material when returning the product for repair. If you do not have the original box, please call Crown at 800.342.6939 or 574.294.8210 and order new pack material. See instructions for “foam-in-place” shipping pack. (Do not ship your unit in a wood or metal cabinet.)

4.If you provide your own shipping pack, the mini- mum recommended requirements for materials are as follows:

a.275 P.S.I. burst test, Double-Wall carton that allows for 2-inch solid Styrofoam on all six sides of unit or 3 inches of plastic bubble wrap on all six sides of unit.

b.Securely seal the package with an adequate carton sealing tape.

c.Do not use light boxes or “peanuts”. Damage caused by poor packaging will not be covered under war- ranty.

Using your 'foam-in-place' shipping pack

Note: The foam-in-place packing is molded so that there is only one correct position for your product.

1.Open carton and lift center cushion leaving both end-cushions in place.

2.Carefully place your product with the product's front panel facing the same direction as arrows indicate.

3.Reset center cushion down over top of product's chassis. The foam-in-place packing was molded to accommodate different chassis depth sizes. If your product's chassis does not completely fill the foam- in-place cavity, you may use a soft but solid packing material (such as paper or bubble wrap) behind the chassis.

4.Enclose the completed Crown Audio Factory Service Information form (or securely attach it to the outside of carton) and re-seal the shipping pack with a sturdy carton sealing tape.

10.2.5 Estimate Approval

Approval of estimate must be given within 90 days after being notified by Crown Audio Inc. Units still in the pos- session of Crown after 90 days of the estimate will become the property of Crown Audio Inc.

10.2.6 Payment of Non-Warranty Repairs

Payment on out-of-warranty repairs must be received within 90 days of the repair date. Units unclaimed after 90 days become the property of Crown Audio Inc.

If you have any questions, please contact Crown Factory Service.

Crown Factory Service

1718 W. Mishawaka Rd.,

Elkhart, Indiana 46517 U.S.A.

Telephone:

574.294.8200

800.342.6939 (North America,

Puerto Rico, and Virgin Islands only)

Facsimile:

574.294.8301 (Technical Support)

574.294.8124 (Factory Service)

Internet:

http://www.crownaudio.com

Operation Manual

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Contents Some models may be exported under the name Amcron Macro-TechImportantes Instructions de Sécurité Important Safety InstructionsCompetent Body’s Name and Address Safety StandardCrown Audio, Inc TCF Technical Certificate No P4300CRI1.IWSTable of Contents How to Use This Manual FeaturesWelcome 48.3 cm SetupUnpack Your Amplifier Install Your Amplifier You may also stack amps without using a cabinetChoose Output Wire and Con- nectors Choose Input Wire ConnectorsBridge-Mono Mode Wire Your SystemStereo Mode See .6. Set the back panel stereo/mono switch to StereoParallel-Mono Mode Set Input Sensitivity Startup ProcedurePrecautions OperationEnable Indicator Front Panel Controls and IndicatorsSignal/IOC Indicators Odep IndicatorsInput Sensitivity Switch not shown Back Panel Controls, Indicators and Connec Tors Power CordStereo/Mono Switch Reset SwitchesIndicators IndicatorsOdep Advanced Features OptionsStandby Mode Protection SystemsAdvanced Features Here are some of its many featuresFuses and Circuit Breakers PIP2 Adapter Connection Options PIP and PIP2 ModulesLevel Control Shaft Lock Cooling Fan OptionsTroubleshooting Circuit Theory Please refer to the block diagram in FigureTheory of Operation OverviewParallel-Mono Operation Bridge-Mono OperationSpecifications 120 VAC, 60 Hz Units, Bridge mono mode120 VAC, 60 Hz Units, Parallel mono mode Shipping Weight Power Draw at IdleDimensions Width Weight Net WeightMacro-Tech 2402 Maximum Power Matrix Maximum Power NotesMacro-Tech 2402 Minimum Power Matrix Minimum Power NotesConstant 0.35 is inefficiency 1.00-0.65 AC Power Draw and Thermal DissipationAC Power Draw Thermal Dissipation Service United States & Canada Warranty12/01 Reason for failure, except as excluded in this WarrantyMA 2402 Power Amplifier Crown Audio, Inc FaxMishawaka Rd Elkhart This page Intentionally Left Blank ‰ Personal/Consumer ‰ Business/Corporate ModelMA 2402 Power Amplifier MA 2402 Power Amplifier