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Power Base-3 & 1400CSL Amplifier Service Manual

24

Q43400-3 PB-3, 1400CSL MAIN MODULE

CAPACITORS

C1

C 3913-8

470µF

C2

C 3913-8

470µF

C4

C 6802-0

.47µF

C5

C 6806-1

.01µF

C6

C 6806-1

.01µF

C7

C 8897-8

.1µF

C8

C 5362-6

2.2uF

C100

C200

C 5311-3

22µF

C101

C201

C 9464-6

10pF

C102

C202

C 8576-8

100uF

C103

C203

C 6805-3

.022µF

C104

C204

C 6805-3

.022µF

C105

C205

C 6812-9

47pF

C106

C206

C 6812-9

47pF

C107

C207

C 8897-8

.1µF

C108

C208

C 6814-5

12pF

C109

C209

C 8576-8

100µF

C110

C210

C 5362-6

2.2µF

C112

C212

C 9991-8

1µF

C113

C213

C 9992-6

47µF

C114

C214

C 8854-9

100µF

C115

C215

C 8854-9

100µF

C116

C216

C 9992-6

47µF

C117

C217

C 9991-8

1µF

C118

C218

C 6814-5

12pF

C119

C219

C 6802-0

.47µF

C122

C222

C 6811-1

100pF

C123

C223

C 6812-9

47pF

C124

C224

C 6812-9

47pF

C129

C229

C 6814-5

12pF

C130

C230

C 6813-7

27pF

C133

C233

C 6813-7

27pF

C134

C234

C 6805-3

.022µF

C135

C235

C 6805-3

.022µF

C136

C236

C 6808-7

470pF

C137

C237

C 6808-7

470pF

C138

C238

C 6813-7

27pF

C139

C239

C 6813-7

27pF

C140

C240

C 6812-9

47pF

C141

C241

C 6812-9

47pF

C144

C244

C 8576-8

100µF

C145

C245

C 6812-9

47pF

C146

C246

C 6812-9

47pF

C147

C247

C 6806-1

.01µF

C148

C248

C 6810-3

180pF

C149

C249

C 6808-7

470pF

C150

C250

C 6806-1

.01µF

C151

C251

C 6806-1

.01µF

C152

C252

C 6950-7

82pF 5%

Q43400-3 Main Module Parts List (D 8827-4)

C153

C253

C 8897-8

.1µF

C154

C254

A10434-104JD

.1µF 250V

C155

C255

C 8897-8

.1µF

C156

C256

C 8897-8

.1µF

C158

C258

C 6805-3

.022uF

C159

C259

C 6805-3

.022uF

C160

C260

C 8897-8

.1uF

C161

C261

C 8897-8

.1uF

C113X C213X

OPEN

C116X C216X

OPEN

DIODES

D1

C 2851-1

1N4004

D2

C 2851-1

1N4004

D3

C 2851-1

1N4004

D4

C 2851-1

1N4004

D5

C 2851-1

1N4004

D6

C 2851-1

1N4004

D7

C 2851-1

1N4004

D100

D200

C 3181-2

1N4148

D101

D201

C 3181-2

1N4148

D102

D202

C 3824-7

1N970B

D103

D203

C 3181-2

1N4148

D104

D204

C 3181-2

1N4148

D105

D205

C 2851-1

1N4004

D106

D206

C 2851-1

1N4004

D108

D208

C 3181-2

1N4148

D109

D209

C 3181-2

1N4148

D110

D210

C 3181-2

1N4148

D111

D211

C 5061-4

1N3070

D112

D212

C 3181-2

1N4148

D113

D213

C 3181-2

1N4148

D120

D220

C 3181-2

1N4148

D121

D221

C 3181-2

1N4148

D122

D222

C 3181-2

1N4148

D123

D223

C 5061-4

1N3070

D124

D224

C 3181-2

1N4148

D125

D225

C 3181-2

1N4148

D126

D226

C 5061-4

1N3070

D127

D227

C 5061-4

1N3070

D128

228

OPEN

D129

D229

C 3181-2

1N4148

D130

D230

C 3181-2

1N4148

D131

D231

C 3181-2

1N4148

D132

D232

C 3181-2

1N4148

D133

D233

C 3181-2

1N4148

D134

D234

C 3181-2

1N4148

L.E.D.'S

E100

E200

C 9857-1

RED

E101

E201

C 9857-1

RED

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Содержание 1400 CSL

Страница 1: ...IFIER SERVICE MANUAL K SVCPB3 6 95 CSL and Power Base are trademarks and ODEP and Crown are registered trademarks of Crown International Inc MailingAddress P O Box 1000 Elkhart IN U S A 46515 1000 ShippingAddress 57620 C R 105 Elkhart IN U S A 46517 1995 by CROWN INTERNATIONAL INC ...

Страница 2: ...O ACCESS GAIN SWITCH CAUTION AVIS WARNING TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE 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 t...

Страница 3: ... 4 Warranty 4 Parts Information 5 Specifications 6 Voltage Conversion 7 Circuit Theory 8 Electrical Checkout Procedures 13 Parts List Non Module 16 Module Information 19 Q43339 3 Output Module 20 Q43353 4 Main Module Original 21 Q43400 3 Main Module 24 Table of Contents ...

Страница 4: ...ific circuit board although an unpopulated circuit board may be built up with different parts to create different modules Note that Crown does not sell blank unpopulated circuit boards Each of the compact audio power amplifiers are designed for professional or commercial use Provid ing high power amplification from 20Hz to 20KHz with minimum distortion they feature balanced inputs with bridged and...

Страница 5: ...then a four character number after the prefix letter the space is considered a character The seventh character is usually a hy phen though it may be a letter to indicate a revision or specialnote Thelastcharacteriscalledacheck digit and is useful to Crown for internal tracking Crown is in the process of converting to a new part number system Length may vary from eight to twelve characters There is...

Страница 6: ... 170 milliwatts to 500 W at 26 dB gain Slew Rate 13V per microsecond Damping Factor 1000 from 10 Hz to 400 Hz DC Offset 10 millivolts Input Impedance Nominally 20K ohms balanced 10K ohms unbalanced Output Impedance 10 milliohms in series with 2 microhenries Protection Systems Output Device Emulation Protec tion ODEP limits drive in the event of dangerous dynamicthermalconditionswithoutinterrupting...

Страница 7: ...4 P8 to P13 240V Connections P10 to P16 P9 to P14 P8 to P13 For list of applicable transformer fuse F100 fanformer and power cord refer to voltage parts cross reference S1 Power Switch PB CSL Universal Fuse Board Specific parts are required for the PB 3 1400CSL in order to be used at different international line volt ages Refer also to Mechanical Parts Lists Voltage Specific Parts 30A Breaker for ...

Страница 8: ...e in either a Bridged or Parallel Mono mode as well as dual stereo A sensitivity switch allows selection of input voltage required for rated output Level controls are rear mounted The only indicator provided tells the operator that the low voltage supply is energized In general the packaging of this model is designed for maximum watt price weight size value It is the most basic grounded bridge amp...

Страница 9: ...ge Translator inputs are ODEP limiting transistors and control protection transistors The ODEP transistors steal drive as dictated by the ODEP circuitry discussed later The control protec tion transistors act as switches to totally shunt audio to ground during the turn on delay or during a DC LF or Fault protective action Last Voltage Amplifiers LVAs The Voltage Translator stage channels the signa...

Страница 10: ...identical to the positive half except that the devices are PNP One Theory Vcc Positive Rail Vcc Negative Rail Load speaker Input signal HIGH SIDE LOW SIDE Inverting Op amp Figure 2 Crown Patented Grounded Bridge Topology difference is that the PNP bias resistor is slightly greater in value so that PNP output devices run closer to the cutoff level under static no signal conditions This is because P...

Страница 11: ...L The total effect is to deliver a peak to peak voltage to the speaker load which is twice the voltage produced by the power supply Benefits include full utilization of the power supply it conducts current during both halves of the output signal conventional designs require two power supplies per channel one positive and one negative and never exposing any output Theory device to more than half of...

Страница 12: ...TPUT PNP STAGE POSITIVE HIGH SIDE OUTPUT NPN STAGE HIGH SIDE BIAS SERVO LVA 1 LVA 1 VOLTAGE TRANSLATOR VOLTAGE TRANSLATOR OUTPUT DEVICE EMULATION PROTECTION ERROR AMP VGS BGS BALANCED INPUTS INVERTING BRIDGE BALANCE LOW SIDE BIAS DIODE STRING 1 1 MAIN NEGATIVE FEEDBACK NFb LOOP Figure 3 Typical Crown Amplifier Basic Block Diagram One Channel Shown ...

Страница 13: ...tions Controls per standard heatsink at room temperature 20 to 30 C 68 to 86 F Note This adjustment should normally be performed within 2 minutes of turn on from ambient cold conditions If possible measure heatsink temperature if not mea sure ambient room temperature Use this information when referencing the following chart F C V ODEP V ODEP 66 18 9 10 31 10 31 68 20 0 10 26 10 26 70 21 1 10 20 10...

Страница 14: ...e wave to obtain 65 volts peak to peak at each output Observe the slope of the square wave It should typically measure 17 to 25 V µS Also the square wave must not include overshoot ringing or any type of oscillation TEST 11 CROSSTALK Spec 60dB at 20 kHz Initial Conditions Controls per standard Terminate input of channel not driven with 600 ohms Procedure 8ohmloadoneachchannel Injecta20kHz sinewave...

Страница 15: ...ter TEST 17 TURN ON TRANSIENTS Spec No dangerous transients Initial Conditions Controls per standard Procedure From an off condition turn on the amplifier and monitor the output noise at the time of turn on Note Turn on noise may increase significantly if the amplifier is cycled off and on TEST 18 TURN OFF TRANSIENTS Spec No dangerous transients Initial Conditions Controls per standard Procedure F...

Страница 16: ...3 0503C Power Cord EUR plug European CSL 1 A10214 7 Strain Relief SR7N 2 Black 1 H43450 8 Power Switch Wires 1 C 6487 0 Switch 2 Pole 22A Power Rocker 1 H43065 4 TransMotor 60 Hz Only 1 H43055 5 TransMotor Universal 1 C 9939 7 Fan Blade 4 Inch CCW 1 D 8439 8 Bracket Fan 1 C 7062 0 6 32 X 5 16 FLTHD Screw 1 C 8752 5 35A 400V Bridge Rectifier 2 D 8438 0 Bracket Capacitor 2 A10110 70812 Screw 8 32 X ...

Страница 17: ...and Heatsinks 1 D 7797 0 Output Thru Hole Pad Insulator 1 D 8197 2 Paper Shroud 1 C 9387 9 Rivet Plastic 2 F12019 0 Diode Heatsink Slug Under diodes on Module 1 M21324 5 Heatsink Aluminum 2 H43058 9 Output Wires Both Red and Black 1 Output Module See Module List 1 BACK PANEL ASSEMBLY CPN ITEM QTY A10214 7 Strain Relief Power Cord 1 C 2823 0 Dual Binding Post Assembly 2 H43437 5 Power Cord Assembly...

Страница 18: ...8 32 75 Taptite Pan Ph 2 A10192 1 Snap Bushing 5 4 C 6487 0 Power Switch 22A Rocker 2 Pole 1 C 6912 7 Tension Retainer Board Support 2 C 6913 5 Spacer Nut 1 inch 2 C 6914 3 Spacer Nut 75 inch 2 C 8812 7 5 5 Cable Tie 5 C 8852 3 5 Locking PCB Support 5 C 9491 9 Screw 6 32 x 312 Pan Head 6 D 7600 6 Ground Strap DBP to Chassis 1 D 7784 8 Label Sensitivity Switch 1 D 8606 2 Label F1 Fuse Replacement 1...

Страница 19: ...les The following is a list of Main and Output modules used up to this date June 1995 It should be noted that both the PB 3 and the 1400CSL use the same modules OUTPUT MODULES left and right are identical Q43339 3 Original Output Module still in production Uses P10429 2 board MAIN MODULES Q43353 4 Original Main Module on D 8679 9 board Used until 6 14 95 Q43400 3 Main Module on D 8827 4 board FUSE...

Страница 20: ... NPN 2SC3298B Q19 C 8509 9 PNP 2SA1306B Note Q18 S100 200 Driver and Output Transistors are not included with the module See the Output Assembly Parts List on page 17 RESISTORS R00 A10266 7501 75 R01 A10266 1011 100 R02 C 7778 1 5 6 flame proof R03 C 6486 2 2 5W R04 C 6486 2 2 5W R06 C 6486 2 2 5W R07 C 6486 2 2 5W R09 C 7779 9 22 flame proof R10 A10266 1011 100 R11 C 7317 8 2 7 5W R12 A10266 2R74...

Страница 21: ... 1 01µF C148 C248 C 6810 3 180pF C149 C249 C 6808 7 470pF C150 C250 C 6806 1 01µF Q43353 4 Main Module Parts List D 8679 9 Board C151 C251 C 6806 1 01µF C152 C252 C 6950 7 82pF 5 C153 C253 C 8897 8 1µF C154 C254 A10434 104JD 1µF 250V C155 C255 C 8897 8 1µF C156 C256 C 8897 8 1µF C158 C258 C 6805 3 022uF C159 C259 C 6805 3 022uF C160 C260 C 8897 8 1uF C161 C261 C 8897 8 1uF DIODES D1 C 2851 1 1N400...

Страница 22: ...102 R202 A10266 5111 510 R103 R203 A10265 10031 100K 1 R104 R204 A10266 2721 2 7K R105 R205 A10266 2721 2 7K R106 R206 A10266 1231 12K R107 R207 A10266 6831 68K R108 R208 A10265 80601 806 R109 R209 A10266 5601 56 R110 R210 A10266 6831 68K R111 R211 A10266 1231 12K R113 R213 A10266 4721 4 7K R118 R218 A10265 28701 287 1 R119 R219 A10265 71501 715 1 R120 R220 A10265 28701 287 1 R121 R221 C 5062 2 10...

Страница 23: ... A10266 10021 10K R919 R1019 A10266 10021 10K R920 R1020 A10266 10021 10K R921 R1021 C 9079 2 200 Pot CMR Null R922 R1022 A10265 71501 715 1 R923 R1023 A10265 35711 3 57K 1 R924 R1024 A10266 5111 510 R925 R1025 A10266 1041 100K R926 R1026 A10266 5111 510 R927 R1027 A10266 1041 100K R928 R1028 A10265 35711 3 57K 1 R929 R1029 A10266 1241 120K R930 R1030 A10266 1241 120K R931 R1031 A10266 3921 3 9K R...

Страница 24: ...01µF C148 C248 C 6810 3 180pF C149 C249 C 6808 7 470pF C150 C250 C 6806 1 01µF C151 C251 C 6806 1 01µF C152 C252 C 6950 7 82pF 5 Q43400 3 Main Module Parts List D 8827 4 C153 C253 C 8897 8 1µF C154 C254 A10434 104JD 1µF 250V C155 C255 C 8897 8 1µF C156 C256 C 8897 8 1µF C158 C258 C 6805 3 022uF C159 C259 C 6805 3 022uF C160 C260 C 8897 8 1uF C161 C261 C 8897 8 1uF C113X C213X OPEN C116X C216X OPEN...

Страница 25: ...K 1 R2 C 7340 0 24 5W R3 C 7340 0 24 5W R4 A10265 46421 46 4K 1 R5 C 3617 5 3 3K 1W Q43400 3 Main Module Parts List Cont D 8827 4 R7 A10266 4331 43K R8 A10265 75021 75K 1 R10 OPEN R11 OPEN R12 OPEN R17 A10265 75021 75K 1 R18 A10266 4331 43K R100 R200 C 7409 3 5K Linear Pot R101 R201 A10265 49911 4 99K 1 R102 R202 A10266 5111 510 R103 R203 A10265 10031 100K 1 R104 R204 A10266 2721 2 7K R105 R205 A1...

Страница 26: ...A10266 3021 3K R196 R296 A10266 4721 4 7K R197 R297 A10265 10021 10K 1 R198 R298 A10266 4721 4 7K R199 R299 A10265 10021 10K 1 R300 R400 A10265 10031 100K 1 R301 R401 A10265 10031 100K 1 Q43400 3 Main Module Parts List Cont D 8827 4 R911 R1011 A10266 1521 1 5K R912 R1012 A10266 4711 470 R913 R1013 A10266 1041 100K R914 R1014 OPEN R915 R1015 A10266 2201 22 R916 R1016 A10266 2201 22 R917 R1017 A1026...

Страница 27: ...200A OPEN U103A U203A OPEN MISCELLANEOUS Board D 8827 4 Socket C 3450 1 14 Pin 2 HW9 10 C 9494 3 TO 220 2 HW11 15 C 9944 7 Spacer 5 J1 C 7593 4 5 Pin HDR J2 OPEN J11 C 7526 4 3 Pin HDR J12 C 7873 0 2 Pin HDR J100 J200 C 6777 4 Input Ph Jk Cover C 6778 2 Ph Jk CVR J101 J201 OPEN J500 J800 D 8681 5 Ribbon 10 J600 J700 D 8680 7 Ribbon 6 HW5 8 C 8812 7 5 5 Tie 4 Z6 C 5868 2 0 Ohm Jmp ...

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