Crown Pulse 21100 Manuel d'utilisateur Page 1

©2005 Crown Audio, Inc.À PRÉVENIR LE CHOCÉLECTRIQUE N’ENLEVEZPAS LES COUVERTURES.RIEN DES PARTIESUTILES À L’INTÉRIEUR.DÉBRANCHER LA BORNEAVANT D’OUVRI

6. Move the probe to monitor the waveform at the IGBT's marked E on Diagram 2. You should see a switching waveform similar to that shown below.

The waveform below is commonly caused by a faulty PWM transformer TX4. The waveform below is typical of an overdrive fault (2x1100 version only). Th

8. All being well, connect another jumper wire from the +60V rail to the PCB point marked C on Diagram 2. Check the waveform from the output of the

wave outputs from the transformer at the points shown in green on Diagram 3. Diagram 3. View from solder side of PCB. 10. The waveforms should be sim

For ± HT: For ± 15V (Note: the gain on the V/Div has been increased to give a better view):

You have now determined that the power supply is running and that there are DC supplies being generated. You should now check the power supply using

Diagram 4. Temporary resistor. 8. Replace the power cord and try the power supply again. It should start. You can measure the DC supply rails at the

Now put the amplifier boards back into the chassis. Fit the minimum of screws to ensure good earthing. If there are any further problems, it is very

the checks listed in Section 2. These checks will minimize the possibility of receiving a nasty surprise when turning on the amplifier. 3.1 Initial Co

3.2.6 10-kHz Square Wave 10-kHz Sq. Wave Slew Rate Test 8-ohm Load With an 8-ohm load on each channel, insert a 10-kHz square wave and adjust amplit

Cautions and Warnings Exclamation Mark Symbol: This symbol is used to alert the user to make special note of important operating or maintenance ins

z Operation Test Pass < 3KVA z Leakage Test Pass < 3 mA © 2002-2005 Crown Audio®, Inc.

Pulse 2x650 Parts List Part Number Description Qty Designator(s) AE0047 MF 1W RES 5% 4R7 PRO1 4 R85, R117, R77, R115AE0100 MF 1W RES 5% 10R PRO1 5 R2

AP1366 MF 0.25W RES 1% 5K1 BL 7 R65, R146, R140, R61, R8, R47, R32AP1370 MF 0.25W RES 1% 7K5 BL 1 R180AP1373 MF 0.25W RES 1% 10K BL 17 R90, R108, R114

BB10022 ZENER DIODE 500MW 24VOLT 1 2 ZD11, ZD14BC0217 DIODE BRIDGE 1.5A 400V W04 1 BR1BC10003 RECTIFIER MUR1640CT XD04- 4 D46, D60, D45, D50BC100

C46, C48CA0027 M/LAYER CRMC CAP 10N 100V 4 C2, C3, C4, C5CA0030 M/LAYER CRMC CAP 50V 4N7 2 C24, C26CA0038R C/CAP 0.2"TAPED 100V 15PF 2 C23, C25CA

FA10002 40W IDC CONN SIDE EJECT XL04- 1FA10003 34W IDC CONN SIDE EJECT XL04- 1FF0728 28WY DIL IC SKT DUAL WIPE TIN 1FF10003 PC JUMPER

LA0041 16/0.2 GREEN/YELLW WIRE 0.12LA0051 1/0.6 SINGLE STRAND WIRE PINK 0.05L-B100A-02 EARTH WIRE MAINS TO CHASS 1L-C300A-02 WIREFORM ASSY.FAN-80MM X

NE0408 M3 SOLDER TAG 1NZ10000 ADHESVIE BCK MIN SUPPORT CA-EL 2P-C1100D-01 SPRING CLIP P-C11 1P-C300A-02 INSULATOR HEATSINK - 250 XV01- 2P

ZC10029 TO3 INSULATING WASHER 16ZC10030 TO3 PLASTIC COVER 2ZD0332 FUSEHOLDER 10A 250V PCB MNT 1ZD0334 20MM S/ENC PCB MNGT FUSEHOLDER 2ZD10000 FUSE 20M

Pulse 2x1100 Parts List Part Number Description Qty Designator(s) AE0047 MF 1W RES 5% 4R7 PRO1 4 R84, R117, R78, R114AE0100 MF 1W RES 5% 10R PRO1 5 R

Circuit Theory, Pulse Series Introduction This section is intended to assist maintenance and service of the Pulse family of amplifiers. Component refe

AP1365 MF 0.25W RES 1% 4K7 BL 1 R219AP1366 MF 0.25W RES 1% 5K1 BL 12 R28, R44, R198, R197, R251,R201, R242, R260, R216, R225, R196, R231AP1370 MF 0.25

BA0025 DIODE FAST 400V 1.7A BYD73G 17 D5, D39, D10, D25, D9, D38, D24, D42, D22, D32, D31, D29, D51, D55, D54, D50, D49BA10004 DIODE IN4004

FET7, FET8, FET2, FET4BD10042 ZTX651 NPN TRANSISTOR 2 TR40, TR42BD10043 ZTX751 PNP TRANSISTOR 2 TR41, TR43BE0403 TL074CN QUAD OP AMP 1 IC2BE0413 JRC D

C121CC0288 POLYPROPYLENE 2200PF 250VAC (C 4 C14, C15CC10076 CAP POLYPROP 220N 400V 5%XC09- 3 C63, C64, C65CC10077 POLY-CAP 400V 1U XC09- 2 C2,

FF10080 PLUG 3 WAY FREE KLIPPON XL04- 2FF10083 5 WAY PIN HDR.LATCH TYPE XL04- 1FF10085 HEADER 1x12 THU VERT XL04- 1FG10006 PCB FASTON 11FH0760 RE

NA0084 M3X6MM PAN POZI BLK SCREW 4NA0384 M2.5X6MM PAN POZ BLK TAPTITE 8NA0392 SCREW PLAS NO8X3/8" BLK 2NA0397 M3X6 FLANGE SCREW BLK POZI 10NA0424

P-C650A-01 SPACER - BINDING POST 1P-CR1100A-01 P2X1000 BASE TRAY 1P-CR1100C-02 1100 SUB FRONT PANEL 1P-CR300C-01 BADGE - CROWN 1P-CR300I-02 FRONT PNL

Pulse 4x300 Parts List Part Number Description Qty Designator(s) AE0047 MF 1W RES 5% 4R7 PRO1 4 R77, R115, R117, R85AE0100 MF 1W RES 5% 10R PRO1 9 R2

R127, R176, R78, R79, R105, R106, R168, R213, R214, R234, R235, R176AP1349 AP 0.25W RES 1% 1K BL 30 R268, R241, R242, R220, R240, R218, R49, R270, R11

AS0104R-0805F SM0805 RES 100K 1% 0.1W T200 5 R35, R38, R41, R44, R60AS0113R-0805F SM0805 RES 11K 1% 0.1W T200 8 R3, R4, R10, R11, R17, R18, R24, R25AS

Overall voltage feedback of the amplifier is derived through R243 and R241. R242 and C20 provide local feedback around the Class A section only to def

TR70, TR92BD0365 BF423 PNP TRANS 20 TR64, TR65, TR16, TR17, TR18, TR19, TR42, TR41, TR40, TR39, TR12, TR87, TR86, TR84, TR85, TR60, TR89, TR66, TR67,

BZ10000 (A) PWM CONT SG3525AN XF04- 1 IC6BZ10002 !THERMISTOR MAIN VOLTAGE CA-DB 1 TH1CA0026 M/LAYER CAP .1UF 63V 17 C150, C110, C46, C39, C79, C72,

CE10004 ELEC/LYTIC RAD 40V 2200 XC06- 3 C5, C22, C159CE10005 ELEC/LYTIC RAD 63V 1000 XC06- 1 C76CE10009 NON-POL 10V 100UF JAMIC 17 C143, C126

HC0021 FERRITE BEAD AX 5X3.5MM TAPED 2 L5, L6HC0028 INDUCTOR 10UH TOKO R621LY-100K 2 L2, L3HC10012 INDUCTOR 47UH RADIAL 1 L4H-C300A-01 TRANSFORMER FET

NA10042 M3X16 SCREW BZP HEX CA-FI 2NA10045 M4X6 PAN POZI SCR BLK CA-FI 4NA10047 M3X10MM P/P ZINC CA-FI 1NA10050 M5X20 TORX TAPTITE BK

P-CR300G-01 BASE TRAY 4 CHAN - PULSE 1P-CR300H-02 SUB PANEL 4 CHAN - PULSE 1P-CR300I-02 FRONT PNL PUNCHED- CROWN 1P-CR300L-01 PANEL SPEAKON - PULSE 1R

ZM10091-01 MANUAL CROWN P4X300 V1.0 1ZZ2893R FILTER 100PF RFI TAPED 8 RF1, RF2, RF3, RF4, RF5, RF6, RF7, RF8

less than about 3Vpk. Thus the amplifier is protected for short circuits because the base-emitter voltage of TR68A increases when output current incre

Pulse Checkout Procedures z1 Dissassembly for Service z2 Checkout Procedures z3 Post Testing Procedure Observe all Cautions and Warnings when ser

Otherwise continue. 4. If a failure has occurred anywhere in the output stages, check the bias servo transistor. Any failure associated with bias tran

Diagram 1. View from solder side of PCB. 3. Use a 60V DC bench supply (current limited). Connect it across C75 with +60V to point B and Gnd to point

Diagram 4. With your scope Gnd referenced to point D or A, switch on the DC supply. Wait a second and then switch the opto. The current should go up