Crown Audio MA-602, MA-1202 operation manual Important Safety Instructions, Watch for These Symbols

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MA Series Power Amplifiers

Important Safety Instructions

1)Read these instructions.

2)Keep these instructions.

3)Heed all warnings.

4)Follow all instructions.

5)Do not use this apparatus near water.

6)Clean only with a dry cloth.

7)Do not block any ventilation openings. Install in accordance with the manufacturer’s instruc- tions.

8)Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.

9)Do not defeat the safety purpose of the polar- ized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding-type plug has two blades and a 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 replacement of the obsolete outlet.

10)Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.

11)Only use attachments/accessories specified by the manufacturer.

12)Use only with a cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus com- bination to avoid injury from tip-over.

13)Unplug this apparatus during lightning storms or when unused for long periods of time.

14)Refer all servicing to qualified service person- nel. Servicing is required when the apparatus has been damaged in any way, 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.

15)WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.

16)DO NOT EXPOSE TO DRIPPING OR SPLASH- ING. DO NOT PLACE OBJECTS FILLED WITH LIQUID, SUCH AS VASES,ON THIS APPARA- TUS.

TO PREVENT ELECTRIC SHOCK DO NOT REMOVE TOP OR BOTTOM COVERS. NO USER SERVICE- ABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

ÀPRÉVENIR LE CHOC ÉLECTRIQUE N’ENLEVEZ PAS LES COUVERCLES. IL N’Y A PAS DES PAR- TIES SERVICEABLE À L’INTÉRIEUR. TOUS REPA- RATIONS DOIT ETRE FAIRE PAR PERSONNEL QUALIFIÉ SEULMENT.

TO COMPLETELY DISCONNECT THIS EQUIPMENT FROM THE AC MAINS, DISCONNECT THE POWER SUPPLY CORD PLUG FROM THE AC RECEPTA- CLE. THE MAINS PLUG OF THE POWER SUPPLY CORD SHALL REMAIN READILY OPERABLE.

WATCH FOR THESE SYMBOLS:

The lightning bolt triangle is used to alert the user to the risk of electric shock.

The exclamation point triangle is used to alert the user to important operating or maintenance instruc- tions.

IMPORTANT

MA Series amplifiers require Class 2 output wiring.

MAGNETIC FIELD

CAUTION! Do not locate sensitive high-gain equip- ment such as preamplifiers or tape decks directly above or below the unit. Because this amplifier has a high power density, it has a strong magnetic field which can induce hum into unshielded devices that are located nearby. The field is strongest just above and below the unit.

If an equipment rack is used, we recommend locat- ing the amplifier(s) in the bottom of the rack and the preamplifier or other sensitive equipment at the top.

FCC COMPLIANCE NOTICE

This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

CAUTION: Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or televi- sion reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and receiver.

Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

Consult the dealer or an experienced radio/TV technician for help.

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Operation Manual

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Contents Macro-Tech Some models may be exported under the name AmcronImportant Safety Instructions Watch for These SymbolsTCF Technical Certificate No P4300CRI1.IWS Safety StandardCrown International, Inc Competent Body’s Name and AddressTable of Contents Welcome How to Use This ManualFeatures You may also stack amps without using a cabinet SetupUnpack Your Amplifier Install Your Amplifier 48.3 cmChoose Input Wire Connectors Choose Output Wire and Con- nectorsSee .6. Set the back panel stereo/mono switch to Stereo Wire Your SystemStereo Mode Bridge-Mono ModeParallel-Mono Mode Operation Startup ProcedurePrecautions Set Input SensitivityOdep Indicators Front Panel Controls and IndicatorsSignal/IOC Indicators Enable IndicatorInput Sensitivity Switch not shown Back Panel Controls, Indicators and Connec Tors Power CordStereo/Mono Switch Input Ground Lift SwitchIndicators IndicatorsProtection Systems Advanced Features OptionsStandby Mode OdepFuses and Circuit Breakers Advanced FeaturesHere are some of their many features Options PIP and PIP2 Modules PIP2 Adapter ConnectionCooling Fan Options Level Control Shaft LockTroubleshooting Overview Please refer to the block diagram in FigureTheory of Operation Circuit TheoryBridge-Mono Operation Parallel-Mono Operation120 VAC, 60 Hz Units, Parallel mono mode Specifications120 VAC, 60 Hz Units, Bridge mono mode Weight Net Weight Power Draw at IdleDimensions Width Shipping WeightMaximum Power Notes Macro-Tech 602 Maximum Power MatrixMacro-Tech 1202 Maximum Power Matrix Macro-Tech 2402 Maximum Power Matrix Minimum Power Notes Macro-Tech 602 Minimum Power MatrixMacro-Tech 1202 Minimum Power Matrix Macro-Tech 2402 Minimum Power Matrix AC Power Draw andThermal Dissipation Constant 0.35 is inefficiency 1.00-0.65AC Power Draw Thermal Dissipation Service Warranty United States & CanadaReason for failure, except as excluded in this Warranty 12/01MA Series Power Amplifiers Crown Audio Factory Service Information