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18 service, 17 ac power draw and thermal dissipation, Comtech drivecore 8150 – Crown Audio ComTech DriveCore Series User Manual

Page 11

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Operation Manual

CT Power Amplifiers

page 20

page 21

CT Power Amplifiers

Operation Manual

18 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.
Warranty is only valid within the country in which the

product is purchased.

17.1 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.

17.2 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.

17.2.1 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.

17.2.2 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.

17.2.3 Factory Service Shipping
Instructions:
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.

17.2.4 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.

17.2.5 Estimate Approval
Approval of estimate must be given within 30 days after
being notified by Crown Audio Inc. Units still in the
pos session of Crown after 30 days of the estimate will
become the property of Crown Audio Inc.

17.2.6 Payment of Non-Warranty Repairs
Payment on out-of-waranty repairs must be received
within 30 days of the repair date. Units unclaimed after 30
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

17 AC Power Draw and Thermal Dissipation

ComTech DriveCore 8150

Load

Watts in

Watts

out

120VAC

Watts

Dissipated

Watts in

Watts out

240VAC

Watts

Dissipated

Thermal Dispation

Line

Current

Watts Out

Per 1A Line

Current

Line

Current

Watts Out

Per 1A Line

Current

btu/hr

kcal/hr

Idle (Deep Sleep)

-

0.9

<0.1

1.00

1.00

<0.1

1

3.41

0.86

Idle (Auto Standby)

-

17

0.35

17.00

15.80

0.28

15.8

57.97

14.60

Idle (Awake)

-

26.5

0.60

26.50

25.00

0.37

25

90.37

22.76

Idle (Green Power)

-

14.5

0.40

-

14

0.30

-

-

-

1/8th Power Pink

Noise

8

179

122

3.40

36

57

185

125

2.10

60

60

204.60

51.54

6

221

155

4.00

39

66

210

150

2.10

71

60

225.06

56.69

4

207

131

3.50

37

76

201

125

2.10

60

76

259.16

65.28

1/3rd Power Pink

Noise

8

438

325

7.60

43

113

445

330

4.30

77

115

392.15

98.79

6

550

400

6.50

62

150

525

321

4.50

71

204

695.64

175.24

4

525

349

5.70

61

176

510

309

4.40

70

201

685.41

172.66

1/8th Power Sine

8

183

125

3.37

37

58

180

125

1.93

65

55

197.78

49.82

6

221

152

4.00

38

68

221

155

2.33

67

66

232.90

58.67

4

205

133

3.74

36

72

198

131

2.12

62

67

245.52

61.85

1/3rd Power Sine

8

452

334

7.85

43

118

436

329

4.36

75

107

402.38

101.36

6

570

413

9.93

42

157

558

413

5.56

74

145

535.37

134.86

4

507

349

8.79

40

158

495

350

4.93

71

145

538.78

135.72

AC Power Draw and Thermal Disspation:
Pink noise 12dB crest factor, bandwidth limited 22Hz to 22kHz.

Typical line impedance used.

Measurements made with 120/240 VAC mains.

Data based on all channels driven at 8 Ohms.