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Power-Tech Series  Power Amplifiers

Page 18

Reference Manual

Crown Audio Customer Service

Technical Support / Factory Service
Plant 2 SW, 1718 W. Mishawaka Rd., Elkhart,
Indiana 46517 U.S.A.

Telephone: 219-294-8200

800-342-6939 

(North America,

   Puerto Rico, and Virgin Islands only)

Facsimile:

219-294-8301 

(Technical Support)

219-294-8124 

(Factory Service)

Fax Back:

219-293-9200 (

North America only)

800-294-4094 

(North America only)

219-294-8100 

(International)

Internet:

http://www.crownaudio.com

6 Service

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.

6.1 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 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.

6.2 North American 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.

6.2.1 Service at a North American 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.

6.2.2 Factory Service

To obtain factory service, fill out the 

service information

page

 found in the back of this manual and send it along

with your proof of purchase and the defective unit to the
Crown factory.

For warranty service, we will pay for ground shipping
both ways in the United States. Contact Crown Factory
Service or Technical Support to obtain prepaid shipping
labels prior to sending 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.

2. To ensure the safe transportation of your unit to the

factory, ship it in an original factory packing con-
tainer. If you don’t have one, call or write Crown’s
Parts Department. With the exception of polyure-
thane or wooden crates, any other packing mate-
rial will not be sufficient to withstand the stress of
shipping. 

Do not use loose, small size packing

materials.

3. Do not ship the unit in any kind of cabinet (wood or

metal). Ignoring this warning may result in exten-
sive damage to the unit and the cabinet. Accesso-
ries are not needed—do not send the product
documentation, cables and other hardware.

If you have any questions, please call or write the Crown
Technical Support Group.

Always use the
original factory pack
to transport the unit.

Factory Service Shipping Instructions:

1. When sending a Crown product to the factory for

service, be sure to fill out the service information
form that follows and enclose it inside your unit’s
shipping pack. Do not send the service informa-
tion form separately.

Содержание POWER-TECH 1

Страница 1: ...1000 U S A Telephone 219 294 8000 Power Tech amplifiers are produced by the Professional Audio Unit of Crown International Inc Trademark Notice Power Tech is a trademark and Amcron Crown IOC and ODEP...

Страница 2: ...3 years from the date of purchase by the original purchaser the warranty period that the new Crown product is free of defects in materials and workmanship We further warrant the new Crown product rega...

Страница 3: ...RE REMOVING BACK PANEL COVER TO ACCESS GAIN SWITCH IMPORTANT THE POWER TECH 1 AND 2 REQUIRE CLASS 2 OUTPUT WIRING THE POWERTECH 3 REQUIRES CLASS 1 WIRING IF USED IN THE BRIDGE MONO OR PARALLEL MONO MO...

Страница 4: ...with the manufacturer s instruc tions 8 Do not install near any heat sources such as ra diators heat registers stoves or other appara tus that produce heat 9 Do not defeat the safety purpose of the po...

Страница 5: ...perfor mance for a wide range of loads Complete protection against shorted outputs mis matched loads overheating input output DC and high frequency overload full internal fault protection Balanced ph...

Страница 6: ...de the outputs are paralleled for twice the current capacity Bridge Mono mode is provided for loads with an impedance greater than 4 ohms Parallel Mono mode should be used with loads of 4 ohms or less...

Страница 7: ...Power Tech Series Power Amplifiers Page 7 Reference Manual Fig 2 3 Three System Connection Methods...

Страница 8: ...lly most sensitive to the heat from average RMS output power To protect your tweeters we recommend that you use a high speed instrument fuse like the Littlefuse 361000 series To protect your woofers w...

Страница 9: ...protection and fuses or circuit breakers to protect the power supplies 3 3 1 ODEP Crown invented ODEP to keep the amplifier working under demanding conditions and to increase output efficiency To do t...

Страница 10: ...draw that exceeds the breaker rating Again this should only be possible when operating outside rated conditions like when the amplifier is used to drive a 1 ohm load or when driving a severely clippe...

Страница 11: ...um level setting Power Tech 1 54 1 12 or 35 dB 0 5 dB at 0 775 volt sensitivity 30 1 12 or 30 dB 1 dB at 1 4 volt sensitivity Power Tech 2 66 1 12 or 36 dB 0 5 dB at 0 775 volt sensitivity 36 1 12 or...

Страница 12: ...el 1 controls are active Channel 2 controls should be turned down and not used Parallel Mono Unbalanced single channel Channel 1 controls are active Channel 2 controls should be turned down and not us...

Страница 13: ...y are typical subject to manufacturing tolerances single channel driven or that they are specified with fuses bypassed Each of these statements effectively removes any performance guarantee In fact so...

Страница 14: ...Power Tech Series Power Amplifiers Page 14 Reference Manual Fig 4 2 Power Tech 2 Minimum Power Matrix Fig 4 3 Power Tech 3 Minimum Power Matrix...

Страница 15: ...ximum power matrices Maximum Power Notes All maximum power specifications are based on 0 5 regulated AC mains with THD of less than 1 0 and an ambient room temperature of 70 F 21 C International units...

Страница 16: ...Power Tech Series Power Amplifiers Page 16 Reference Manual Fig 4 5 Power Tech 2 Maximum Power Matrix Fig 4 6 Power Tech 3 Maximum Power Matrix...

Страница 17: ...em that uses standard XLR connectors It can also be used in systems that need to daisy chain an input signal from one amplifier to another Because the MT XLR connectors are in parallel with the amplif...

Страница 18: ...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...

Страница 19: ...___________________________________________________________________ ______________________________________________________________________________ _____________________________________________________...

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