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Macro-Tech MA-5002VZ 

Power Amplifier

page 21

Operation Manual

Crown amplifiers are quality units that rarely 
require servicing. Before returning your unit for 
servicing, please contact Crown Technical Sup-
port to verify the need for servicing.

This unit has very sophisticated circuitry which 
should only be serviced by a fully trained tech-
nician. 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 quali-
fied technician.

8.1 Worldwide Service

Service may be obtained from an authorized 
service center. (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 pur-
chase along with the defective unit to an autho-
rized service center. They will handle the 
necessary paperwork and repair.

Remember to transport your unit in the original 
factory pack. 

8.2 US and Canada 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.

8.2.1 Service at a US or Canada 
Service Center

This method usually saves the most time and 
effort. Simply 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. Remember to 
transport the unit in the original factory pack. A 
list of authorized service centers in your area 
can be obtained from our Technical Support 
Group.

8.2.2 Factory Service

To obtain factory service, fill out the service 
information page found in the back of this man-
ual and send it along with your proof of pur-
chase and the defective unit to the Crown 
factory. 

For warranty service, we will pay for ground 
shipping both ways in the United States. Con-
tact Crown Factory Service or Technical Sup-
port to obtain prepaid shipping labels prior to 
sending the unit. Or, if you prefer, you may pre-
pay the cost of shipping, and Crown will reim-
burse 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 arrange-
ments are required.

8.2.3 Factory Service Shipping 
Instructions:

1.

Before sending a Crown product to the 
factory for service, first call the Crown Ser-
vice Department for a return authorization 
(RA) number.

2.

Be sure to fill out the service information 
form that follows and enclose it with your 
shipment, either inside the box or in a 
packing slip envelope securely attached to 
the outside of the shipping carton. Do not 
send the service information form sepa-
rately.

3.

To ensure the safe transportation of your 
unit to the factory, ship it in an original 
factory packing container. If you don’t have 
the original carton, you may obtain a prod-
uct service foam-in-place shipping pack 
from the Crown Factory Service Depart-
ment at the number listed below. For non-
warranty service, you may also provide 
your own shipping pack. Minimum recom-
mended requirements for materials are as 
follows: 275 P.S.I. burst test Double-Wall 
carton that allows for 2-inch solid Styro-
foam on all six sides of unit or 3 inches of 
plastic bubble wrap on all six sides of unit; 

securely seal the package with an adequate 
carton sealing tape. Do not use light boxes 
or “peanuts.” Damage caused by poor 
packing cannot be covered under warranty. 

4.

Do not ship the unit in any kind of cabinet 
(wood or metal). Ignoring this warning 
may result in extensive damage to the unit 
and the cabinet. Accessories are not 
needed—do not send the product docu-
mentation, cables and other hardware.

If you have any questions, please call or write  
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

8 Service

Summary of Contents for Macro-Tech MA-5002VZ

Page 1: ...tion or maintenance Note The information provided in this manual was deemed accurate as of the publication date However updates to this information may have occurred To obtain the latest version of th...

Page 2: ...14 Refer all servicing to qualified service personnel 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 objec...

Page 3: ...cators 11 4 3 Back Panel Controls and Connectors 12 5 Advanced Features and Options 14 5 1 Protection Systems 14 5 1 1 Output Device Emulation Protection ODEP 14 5 1 2 IOC Input Output Comparator 14 5...

Page 4: ...the best possible service from your amplifier 1 1 Features Grounded Bridge design delivers large voltage swings without stressing output transistors resulting in lower distortion and superior reliabil...

Page 5: ...e the Important Safety Instruc tions found at the beginning of this manual 3 2 Install Your Amplifier CAUTION Before you begin make sure your amplifier is disconnected from the power source with power...

Page 6: ...correct connector pin assignments for balanced wiring and Figure 3 4 for correct connector pin assignments for unbal anced wiring NOTE Custom wiring should only be performed by qualified personnel Bal...

Page 7: ...wire for your output connectors see Figure 3 5 To prevent the possibility of short circuits wrap or otherwise insulate exposed loudspeaker cable connectors Using the guidelines below select the appro...

Page 8: ...erating in Stereo mode 3 6 2 Bridge Mono Mode Typical input and output wiring is shown in Figure 3 7 INPUTS Connect input wiring to Channel 1 Refer to Section 3 4 for input connector pin assignments O...

Page 9: ...of amp Refer to Section 3 5 for output connector pin assign ments Make sure the Mode switch is set to the Parallel position when operating in Parallel Mono mode NOTE Turn down full CCW the Channel 2...

Page 10: ...ease refer to the Crown Amplifier Application Guide available online at www crownaudio com 4 Operation 4 1 Precautions Your Macro Tech Series amplifier is protected from internal and external faults b...

Page 11: ...ence of input signals flashes brightly with a 0 1 second hold delay to indicate a difference distortion between the input and output signal of 0 05 or greater and flashes brightly with a 0 5 second ho...

Page 12: ...on 5 2 4 for more info about LOI L Sensitivity Switch Three position switch Allows the selec tion of 26 dB 1 4V or 0 775V input sensitivity M Power Cord N Output Connectors High current output block a...

Page 13: ...nnel P TRS Input Jack Standard PIP2 Module One per channel female TRS input jacks are provided Q XLR Inputs Standard PIP2 Module One per channel female XLR input con nectors are provided R Ground Lift...

Page 14: ...ice the voltage seen by the output devices and twice the voltage generated by the power supplies The power supply bridge rectifier is not ground referenced and the transformer secondary is not center...

Page 15: ...er of loudspeakers you can drive with the amplifier and this does not allow for a 4 ohm loudspeaker whose impedance drops below 2 ohms at 80 Hz This is why your amplifier has ILoad ILimit The ILoad fu...

Page 16: ...ltage power supply fuse has blown Return amp to Crown or an authorized Crown Service Center for servicing CONDITION No sound POSSIBLE REASON The amplifier has just been turned on and is still in the 4...

Page 17: ...ono mode 1 kHz with 0 1 THD 1 ohm 2 ohms 4 ohms 5 000 3 700 2 600 Performance Frequency Response at 1 watt 20Hz 20 kHz see Figure 7 3 0 1 dB Phase Response at 1 watt 10Hz 20 kHz see Figure 7 6 10 Sign...

Page 18: ...or 26 dB 0 5 dB Required AC Mains 50 or 60 Hz 100 120 208 230 240 VAC 10 Power Draw at Idle 90 watts or less Construction Cooling Internal heat sinks with on demand proportional forced air cooling con...

Page 19: ...0 1365 6060 4615 2865 6145 4485 2795 2505 1940 1270 5320 4070 2670 5285 4045 2670 2415 1895 1265 4845 3805 2545 4865 3820 2565 2545 1925 1270 5310 4060 2665 5275 4025 2670 2440 1510 870 4815 3100 1815...

Page 20: ...20 K FREQUENCY Hz 100 1 K 10 K 20 K FREQUENCY Hz dB 44 50 56 62 68 74 80 7 Specifications Figure 7 3 Typical Frequency Response Figure 7 5 Typical Output Impedance Figure 7 6 Typical Phase Response Fi...

Page 21: ...ct Crown Factory Service or Technical Sup port to obtain prepaid shipping labels prior to sending the unit Or if you prefer you may pre pay the cost of shipping and Crown will reim burse you Send copi...

Page 22: ...enter or our factory All expenses in remedying the defect including surface shipping costs in the United States will be borne by us You must bear the expense of shipping the product between any for ei...

Page 23: ...est insurance closing costs and other finance charges less a reasonable depreciation on the product from the date of original purchase War ranty work can only be performed at our autho rized service...

Page 24: ...paratus for Professional Use Part 2 Immunity EN 61000 4 2 1995 Electrostatic Discharge Immunity Environment E2 Criteria B 4k V Contact 8k V Air Discharge EN 61000 4 3 1996 Radiated Radio Frequency Ele...

Page 25: ..._________________________________ ______________________________________________________________________________________________________________________________________________________________________...

Page 26: ...Macro Tech MA 3600VZ Power Amplifier page 26 Operation Manual THIS PAGE INTENTIONALLY LEFT BLANK...

Page 27: ...Macro Tech MA 5002VZ Power Amplifier page 27 Operation Manual NOTES...

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