Crown CE-1000A User manual

Service Manual
130352-1
10/02
Rev. D
CE SERIESCE SERIES
CE SERIESCE SERIES
CE SERIES
PROFESSIONAL AUDIO AMPLIFIERSPROFESSIONAL AUDIO AMPLIFIERS
PROFESSIONAL AUDIO AMPLIFIERSPROFESSIONAL AUDIO AMPLIFIERS
PROFESSIONAL AUDIO AMPLIFIERS
Models:
CE-1000, CE-2000
(some units may have the model names: CE-1000A, CE-2000A, CE-2000TX,
UT-1010, UT-2020, M120, M240, S2, and S3)
© 2002 by Crown Audio, Inc., P.O. Box 1000, Elkhart, Indiana 46515-1000 U.S.A. Telephone: 574-294-
8000. CE Series amplifiers are produced by Crown International, Inc. Trademark Notice: Crown and
MultiMode are registered trademarks of Crown International. Other trademarks are the property of their
respective owners.

CE Series Service Manual Rev. D
The information furnished in this manual does not include all of the details of design, production, or variations of
the equipment. Nor does it cover every possible situation which may arise during installation, operation or
maintenance. If you need special assistance beyond the scope of this manual, please contact the Crown
Technical Support Group.
Mail: P.O. Box 1000 Elkhart IN 46515-1000
Shipping: 1718 W. Mishawaka Rd., Elkhart IN 46517
Phone: [phone]
FAX: [phone]
Web : www.crownaudio.com
À PRÉVENIR LE CHOC
ÉLECTRIQUE N’ENLEVEZ
PAS LES COUVERTURES.
RIEN DES PARTIES
UTILES À L’INTÉRIEUR.
DÉBRANCHER LA
BORNE AVANT D’OUVRIR
LA MODULE EN ARRIÈRE.
TO PREVENT ELECTRIC SHOCK
DO NOT REMOVE TOP OR
BOTTOM COVERS. NO USER
SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.
DISCONNECT POWER CORD
BEFORE REMOVING REAR INPUT
MODULE TO ACCESS GAIN
SWITCH.
CAUTION AVIS
WARNING
TO REDUCE THE RISK OF ELECTRIC
SHOCK, DO NOT EXPOSE THIS
EQUIPMENT TO RAIN OR MOISTURE!
I

CE Series Service Manual
Rev. D
Revision History
Revision Number Date Changes
Rev. A
Rev. B
Rev. C
Rev. D
3-98
2-99
5-99
10-02
II
Initial Printing
Added Additional Module Documentation.
Added Revision History.
Added Inside Cover Page.
Updated Cover Page and Table of Contents.
Updated Graphic on Page 1-1.
Updated Specifications on Page 1-2.
Added Section 7, Module and Schematic Information.
Added Section 8, Module Parts Lists.
Moved existing Module Parts Lists from Section 6 to
Section 8.
Added Module Parts Lists for Module CPNs:102139-11,
102140-11, 127321-1, 127323-1, 127353-1, 127373-2,
127354-1, and 127354-2.
Added Section 9, Field Service Modifications.
Added Section 10, Schematics.
Moved all existing Schematics from Section 6 to
Section 10.
Added Schematics 102141M and 102142M.
Updated Cover Page, Revision History and Table of
Contents.
Revised fan part no. from 125400-3 to 133551-1.
Updated phone number area code.
Updated sections 1.2, 1.3.6, 7.2, 7.2.1, 7.2.3, 7.3,
7.3.2, 7.3.3, 7.4.1, 9.2, 9.4.
Added Module Parts Lists for Module CPNs:
102140-9 revB, 126883-2 rev B, 127321-2, 127323-2,
127353-3, 127354-3, 127451-4 and 127452-4.
Added Schematics 127451-4 and 127452-4.
Added Assembly Parts List for CE1000A and CE2000A
Domestic.
Revised Crown logo.
Updated Cover Page, Revision History and Table of
Contents.

CE Series Service Manual Rev. D
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III

CE Series Service Manual
Rev. D
Table of Contents
IV
1 Introduction .............................................................................. 1-1
1.1 The CE-Series .................................................................. 1-1
1.2 Warranty ........................................................................... 1-1
1.3 Specifications .................................................................. 1-2
1.3.1 Performance ............................................................ 1-2
1.3.2 Power ....................................................................... 1-2
1.3.3 Controls ................................................................... 1-2
1.3.4 Indicators ................................................................. 1-2
1.3.5 Input/Output ............................................................. 1-2
1.3.6 Connectors .............................................................. 1-2
1.3.7 Construction ............................................................ 1-2
2 Maintenance............................................................................. 2-1
2.1 Surface Mount Technology .............................................. 2-1
2.2 Cautions and Warnings.................................................... 2-1
2.3 Troubleshooting ............................................................... 2-1
2.3.1 Pre-AC-Checks ........................................................ 2-1
2.3.2 Main Module Removal ............................................. 2-2
2.3.3 Static Checks .......................................................... 2-2
2.4 Checkout/Adjustment Procedures ................................... 2-2
2.4.1 Equipment Required ................................................ 2-3
2.4.2 Initial Conditions ...................................................... 2-3
2.4.3 Test Procedure......................................................... 2-3
2.4.4 Service Kit Wire Extensions ..................................... 2-3
3 Circuit Theory ........................................................................... 3-1
3.1 Front End Operation......................................................... 3-1
3.2 Balanced Gain Stage ....................................................... 3-1
3.3 Variable Gain Stage ......................................................... 3-1
3.4 Error Amp ......................................................................... 3-2
3.5 Voltage Amplification ....................................................... 3-2
3.5.1 Voltage Translator .................................................... 3-2
3.5.2 Last Voltage Amplifier .............................................. 3-2
3.5.3 Bias Servo ............................................................... 3-2
3.2.2 Output PCA ............................................................. 3-3
3.6 Output Topology .............................................................. 3-2
3.6.1 Pre-Driver ................................................................ 3-3
3.6.2 Driver ....................................................................... 3-3
3.6.3 Output Devices ........................................................ 3-3
3.6.4 Flyback Diodes ........................................................ 3-3
3.6.5 Output Terminating Network .................................... 3-3
3.7 Power Supply ................................................................... 3-3
3.7.1 Low Voltage Supply ................................................. 3-3
3.7.2 Bootstrap Supply ..................................................... 3-3
3.7.3 High Voltage Supply ................................................ 3-4

CE Series Service Manual Rev. D
Table of Contents
V
3.8 Protection Circuitry........................................................... 3-4
3.8.1 Time Dependent VI Limit ......................................... 3-4
3.8.2 Temperature Protection ........................................... 3-5
3.8.3 Low-Frequency and Short-Circuited Protection....... 3-5
3.8.4 Input Compressor .................................................... 3-5
3.8.5 Turn-On Delay.......................................................... 3-6
3.8.6 Output Relay Muting ................................................ 3-6
3.8.7 Input Muting ............................................................ 3-6
3.8.8 Auxiliary Output Jack .............................................. 3-6
3.9 Fan Control Circuitry ........................................................ 3-6
4 Neutrik Connectors .................................................................. 4-1
5 Parts ......................................................................................... 5-3
5.1 General Information ......................................................... 5-3
5.2 Standard and Special Parts ............................................. 5-3
5.3 Ordering Parts ................................................................. 5-3
5.4 Shipment .......................................................................... 5-3
5.5 Terms ............................................................................... 5-3
6 Exploded Views, Parts Lists ..................................................... 6-1
Assy. CE 1000 Domestic........................................................ 6-2
Assy. CE 1000 PWA & Chassis .............................................. 6-4
HS Assy. CE 1000 Isolated Ch. 1........................................... 6-6
HS Assy. CE 1000 Isolated Ch. 2........................................... 6-8
HS Assy. CE 1000 Non-isolated Ch. 1 ................................. 6-10
HS Assy. CE 1000 Non-isolated Ch. 2 ................................. 6-12
Assy. CE 2000 Domestic...................................................... 6-14
Assy. CE 2000 PWA & Chassis ............................................ 6-16
HS Assy. CE 2000 Isolated Ch. 1......................................... 6-18
HS Assy. CE 2000 Isolated Ch. 2......................................... 6-20
HS Assy. CE 2000 Non-isolated Ch. 1 ................................. 6-22
HS Assy. CE 2000 Non-isolated Ch. 2 ................................. 6-24
Assy, CE 1000A Domestic ................................................... 6-26
Assy, CE 2000A Domestic ................................................... 6-28
7 Module and Schematic Information.......................................... 7-1
8 Module Parts ............................................................................ 8-1
NOTE: In Section 8, page numbers are on component-map title pages only.
PWA 102139-6 ....................................................................... 8-3
Component Map ............................................................. 8-17
PWA 102139-8 ..................................................................... 8-19
Component Map ............................................................. 8-33
PWA 102139-9 ..................................................................... 8-35
Component Map ............................................................. 8-49

CE Series Service Manual
Rev. D
VI
Table of Contents
PWA 102139-11 ................................................................... 8-51
Component Map ............................................................. 8-65
PWA 102140-6 (102140 revH) ............................................. 8-67
Component Map ............................................................. 8-81
PWA 102140-8 ..................................................................... 8-83
Component Map ............................................................. 8-97
PWA 102140-9 revB ........................................................... 8-100
Component Map........................................................... 8-119
PWA 102140-9 rev C .......................................................... 8-122
Component Map........................................................... 8-141
PWA 102140-11 ................................................................. 8-144
Component Map........................................................... 8-163
PWA 102689 ...................................................................... 8-166
Component Map........................................................... 8-169
PWA 102690 ...................................................................... 8-170
Component Map........................................................... 8-173
PWA 126883-2 revB ........................................................... 8-174
Component Map........................................................... 8-177
PWA 126883-2 revC........................................................... 8-178
Component Map........................................................... 8-181
PWA 127321-1 ................................................................... 8-182
Component Map........................................................... 8-200
PWA 127321-2 ................................................................... 8-203
Component Map .......................................................... 8-220
PWA 127323-1 ................................................................... 8-223
Component Map........................................................... 8-242
PWA 127323-2 ................................................................... 8-245
Component Map........................................................... 8-262
PWA 127353-1 ................................................................... 8-265
Component Map........................................................... 8-283
PWA 127353-2 ................................................................... 8-286
Component Map........................................................... 8-304
PWA 127353-3 ................................................................... 8-307
Component Map........................................................... 8-325
PWA 127354-1 ................................................................... 8-328
Component Map........................................................... 8-347
PWA127354-2 .................................................................... 8-350
Component Map........................................................... 8-369
PWA 127354-3 ................................................................... 8-372
Component Map........................................................... 8-391
PWA 127451-4 ................................................................... 8-394
Component Map........................................................... 8-412
PWA 127452-2 ................................................................... 8-415
Component Map........................................................... 8-434

CE Series Service Manual Rev. D
VII
Table of Contents
9 Field Modifications .............................................. 9-1
9.1 Fan Circuit Balast Resistors .........................9-1
9.2 Timing/Mute Capacitors ............................... 9-1
9.3 Modification for Noise/Oscillation Problem .. 9-3
9.4 Bootstrap Resistor Modification ................... 9-4
9.5 Channel 1 Output to Channel 2 Speakon ....9-5
10 Schematics ......................................................... 10-1

PART I
Technical Information

CE Series Service Manual Rev. D
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