Mackie-SR1530-pwr-sm 维修电路原理图.pdf

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1、SR1530Active SpeakerSERVICE MANUAL2000 MACKIE DESIGNS, INC.RadioFans.CN 收音机爱 好者资料库Go To Bulletins2 SERVICE ON THIS EQUIPMENT IS TO BE PERFORMED BY EXPERIENCED REPAIR TECHNICIANS ONLYRadioFans.CN 收音机爱 好者资料库3CONTENTSIntroduction . 3Overview . 4Specifications. 5Test procedure. 6Safety test . 8Parts. 9S

2、ervice bulletins . 19Fold-out SectionsSchematics and PCB layoutsAmplifier board . Amp-1Filter board. Filter-1Wiring diagrams . Wiring-1INTRODUCTIONThis manual contains basic service information. It is essential that you have a copy of theusers manual as this contains the complete operating instructi

3、ons.SERVICE TECHNICAL ASSISTANCEMackie Designs, Service Technical Assistance, is available 8AM - 5PM PST, Monday throughFriday for Authorized Mackie Service Centers, at 1-800-258-6883. Feel free to call with anyquestions and speak with a carefully-calibrated technician. If one is not available, leav

4、ea detailed message and a qualified Mackoid will return your call asap.DISCLAIMERThe information contained in this manual is proprietary to Mackie Designs, Inc. The entiremanual is protected under copyright and may not be reproduced by any means withoutexpress written permission from Mackie Designs,

5、 Inc. SERVICE ON THIS EQUIPMENT IS TO BE PERFORMED BY EXPERIENCED REPAIR TECHNICIANS ONLYClick on any item to open that pageALL BOARDS4The SR1530 is a high output, horn loaded, 3-way, wide dispersion, active soundreinforcement system. It features a one-piece 90 x 40 horn, which includes both the mid

6、and high frequency sections in a proprietary “Optimal Wavefront” design. Unlike typicalmid/high horn designs, the high frequency section is positioned to fire down into the six-inch mid-ranges dispersion pattern. This creates a focused, single wave front withexcellent phase and power response charac

7、teristics.The mid-range transducer operates between 700Hz and 3000Hz, eliminating theplacement of a crossover point in the middle of critical voice frequencies. Frequenciesabove 3000Hz are reproduced by a 1-inch exit compression driver. The low frequenciesare produced through a high output 15-inch w

8、oofer.The SR1530 accepts a line-level signal via a female XLR input jack. A male XLR Thru jack isprovided for daisy-chaining the signal to additional SR1530 cabinets.Two built-in power amplifiers provide 100 watts each for the mid-frequency and high-frequency drivers. The low-frequency driver is pow

9、ered by a high-efficiency, high-currentClass G topology amplifier providing 300 watts of power. The amplifier modules sit on alarge heatsink that eliminates the need for fans, dramatically extending life expectancy,and eliminating maintenance cycles.The cabinet is constructed using both 18mm multi-l

10、ayered plywood and pressure injectedstructural resin. Two carrying handles are integrated into each side for easy loading andtransport.OVERVIEW5SPECIFICATIONSSystem SpecificationsFrequency Range40Hz20kHzFrequency Response (3 dB)45Hz18kHzHorizonal Coverage Angle (6 dB)90 averaged 2kHz to 10kHzVertica

11、l Coverage Angle (6 dB)40 averaged 2kHz to 10kHzDirectivity Factor; DI (Q)10.77 (11.95)averaged 2kHz to 10kHzMaximum SPL 1m123 dBPeak Output 1m126 dBCrossover Points700Hz, 3000HzDynamic Range 100 dBPhase Response40 from 500Hz to10kHzInput TypeBalanceddifferentialInput Impedance50K ohmsInput Protecti

12、onMonitoring andlimiting ofcontinuous rmsoutput of theamplifiersThermal ProtectionInput stagemuting,auto-resetTransducer SpecificationsLow-Frequency TransducerDiameter15” (381mm)Voice Coil Diameter2.5” (63mm)Power Handling250 watts rmsMid-Frequency TransducerDiameter6” (152mm)Voice Coil Diameter2” (

13、50mm)Power Handling60 watts rmsHigh-Frequency TransducerDiaphragm Diameter1” (25mm)Voice Coil Diameter1” (25mm)Power Handling25 watts rmsDiaphragm MaterialMylarPower AmplifiersLow-Frequency Power AmplifierBurst Capability 300 wattsRated THD 0.05%DesignClass G, HighEfficiency/HighCurrentMid and High-

14、Frequency Power AmplifiersBurst Capability100 wattsRated THD 0.1%Design: Integrated ModuleLine Input PowerUS120V, 60HzRecommended Amperage Service8 ampsEurope230V, 50HzRecommended Amperage Service5 ampsPhysical PropertiesHeight43.9” (1116mm)Front Width19.1” (484mm)Rear Width13.9”(352mm)Depth18.1” (4

15、60mm)Weight 100 lbs. (45.5kg)Enclosure18mm thick multi-layeredplywood, top and bottomhigh pressure resin injected“caps”Enclosure GeometryTrapezoidal, 10 anglesidesMounting MethodsFloor mountDisclaimerSince we are always striving to make ourproducts better by incorporating new andimproved materials,

16、components, andmanufacturing methods, we reserve the rightto change these specifications at any timewithout notice.“Mackie” and the “Running Man” figure aretrademarks or registered trademarks of MackieDesigns Inc.All other brand names mentioned aretrademarks or registered trademarks of theirrespecti

17、ve holders, and are herebyacknowledged.2000 Mackie Designs Inc.All Rights Reserved.Printed in Italy.6TEST EQUIPMENTAudio generator/analyserOscilloscopeVoltmeter2 load resistors 16 ohm, 200W1 load resistor 8 ohm, 100WVariac with voltage and current-draw meters1 INSPECTION1.1 Inspect all components, s

18、older, wires, connectors, screws, heatsink screws. Makesure all transistors and IC amps are secured correctly to the heatsink.2 CONNECTIONS2.1 Connect the two 16 ohm loads to the Low and High outputs (Low+ Low- and Hi+ Hi -).2.2 Connect the 8 ohm load to the Mid outputs (Mid+ and Mid -).2.3 Connect

19、the audio generators output to the XLR input of the SR1530.2.5 Initially connect the analyser and scope to the 16 ohm load on the Low Freq section.2.6 Connect the variac to the AC connector of the SR1530.2.7 Set the frequency to 200 Hz, at minimum output.2.8 Turn on the SR1530 Power Switch3 POWER UP

20、3.1 Slowly bring the Variac up to 115 Vac (230 Vac for European models).3.2 Verify that the green led is illuminated.3.3 Verify an ac current draw of: 340 mA 10 % (115 Vac)170 mA 10 % (230 Vac).3.4 Verify with a DC voltmeter the values of the two DC rails ( 25 Vdc; 50 Vdc)with a tolerance of approx

21、1.5 Vdc for the 25V rail and approx 2 Vdc for the50V rail.Amplifier Test ProcedureNOTE: The amplifiers areoperated in mono, so the negativeoutput terminals must not begrounded by your test equipment.Use an oscilloscope in Differentialmode.74 VERIFICATION OF THE LOW FREQUENCY SECTION.4.1 Initially se

22、t the input signal to 30 mV at 100Hz.4.2 Increase the input signal slowly until the limiter starts to stabilize the output to35V (approximately 76.7W) with an input of approx 250 mV.4.3 Lower the input signal until the limiter is not operating. The input signal should be approx220230mV) and the outp

23、ut signal should be 32V (approx 63.5 W into the 16 ohm load).4.4 Bypass the limiter temporarily by shorting the led section of the optocoupler, andincrease the input signal until the output signal is clipping. Verify this occurs at approx 53volts (180 W into the 16 ohm load). The input signal should

24、 be approx 380mV.4.5 Remove the short circuit and verify that the limiter kicks in after 7 or 8 seconds.5 VERIFICATION OF THE HIGH FREQUENCY SECTION.5.1 Connect the analyser and scope to the 16 ohm load on the High Freq section.5.2 Initially set the input signal to 100 mV at 10 kHz.5.3 Increase the

25、input signal slowly until the limiter starts to stabilize the output to10.1V (approx 6.4W into 16 ohms) with an input of approx 240 mV.5.4 Lower the input signal until the limiter is not operating. The input signal should be approx190200mV) and the output signal should be 7.9V (approx 3.9 W into 16

26、ohms).5.5 Bypass the limiter temporarily by shorting the led section of the optocoupler, andincrease the input signal until the output signal is clipping. Verify this occurs atapprox 19.2 volts (23 W into 16 ohms). The input signal should be approx 441 mV.5.6 Remove the short circuit and verify that

27、 the limiter kicks in after 6 to 7 seconds.6 VERIFICATION OF THE MID FREQUENCY SECTION.6.1 Connect the analyser and scope to the 8 ohm load on the Mid Freq section.6.2 Initially set the input signal to 120 mV at 1 kHz.6.3 Increase the input signal slowly until the limiter starts to stabilizes the ou

28、tput to14.6V (approx 26.7W into 8 ohms) with an input of approx. 560 mV.6.4 Lower the input signal until the limiter is not operating. The input signal should be approx490500mV) and the output signal should be 12.9V (approx 20.9 W into 8 ohms).6.5 Bypass the limiter temporarily by shorting the led s

29、ection of the optocoupler, andincrease the input signal until the output signal is clipping. Verify this occurs atapprox 24 volts (72 W into 16 ohms). The input signal should be approx 940 mV.6.6 Remove the short circuit and verify that the limiter kicks in after 5 to 6 seconds.8You must perform the

30、 following leakage test before returning the unit to your customer.Take every safety precaution to protect yourself while doing this test.1.Make a small loading RC circuit as shown in the diagram below, and connect the ACvolt meter between the AC power source ground and any exposed metal on the unit

31、under test.2.Connect the unit under test to an AC power source using a ground-lift adaptor, leavingthe units safety ground floating. Turn the unit on.3.The meter reading should be less than 750mVAC (note: this is equivalent to 0.5mA ofleakage current).4.Flip the plug over in the receptical so the ho

32、t and neutral are swapped.Verify that the reading is still less then 750mVAC.5.If either reading is greater than 750mVAC, then you must investigate and repair the unitbefore returning it to your customer.Safety test9SR1530 PARTS LISTWARNING: IN THE PAGES WHICH FOLLOW, PARTS WHICH AREMARKED WITH THE

33、WARNING TRIANGLE SHOULD ONLY BE REPLACEDWITH EXACT REPLACEMENT PARTS. THIS IS REQUIRED TO MAINTAINPRODUCT SAFETY.PART#DESCRIPTIONPAGE13110050SR1530 ASSEMBLY1023103130AMPLIFIER SUBASSEMBLY1123103130AMPLIFIER SUBASSEMBLY (dual volt)1123103130AMPLIFIER SUBASSEMBLY (115V)1123103810AMPLIFIER SUBASSEMBLY

34、(100V)1223103710AMPLIFIER SUBASSEMBLY (230V)1323103820AMPLIFIER SUBASSEMBLY (240V)133020490AMPLIFIER PCB ASSEMBLY1423030110FILTER PCB ASSEMBLY15EARLY AMPLIFIER ASSEMBLY16LATEST AMPLIFIER COMMON PARTS18RECONE KIT181013110050 SR 1530 ASSEMBLY 115VPART#DESCRIPTIONQTYCOMMENTSSC034351WIRING DIAGRAM REVD1

35、21110110LOUDSPEAKER L15-64-MAS 1530 REVA1WOOFER21110120MR 160-MAS 1530 REVA1MIDRANGE23020480LED BOARD ASSEMBLY123030110FILTER ASSEMBLY1SEE PAGE 1323103130AMPLIFIER SUBASSEMBLY1SEE PAGE 1123103150LOUDSPEAKER CABLE ASSEMBLY123103490LED CABLE ASSEMBLY125110160TWEETER N 270-MAS 1530 REVA1TWEETER33090410

36、CABINET 34231133090460HANDLE HOUSING 34278233161060WOOFER GASKET 23630133180120TOP VENTILATION PLATE 343321FITS ON TOP OF AMPLIFIER33180360LOWER VENTILATION PLATE 352711FITS ON BOTTOM OF AMPLIFIER33221510FRONT GRILL 35723133890150VIBRATION-DAMPING MATERIAL 234181MOUNTS INSIDE, NEAR THE HOLEFOR THE S

37、TAND33890190CABINET FEET 34344433900120SIDE HANDLE BAR 339392HANDLE BAR33900360CIRCULAR PLUGS 343602TOP/BOTTOM PLUGS WITH LOGO33900470REFLEX PORT 352552CIRCULAR BASS REFLEX PORTS33910660ABSORBENT FOAM 35724133910670ABSORBENT FOAM 35739233920590PLASTIC SIDE HANDLE GRIP 342802HANDLE GRIP33920650TOP HA

38、NDLE 34335REV B2TOP HANDLE33951530MACKIE LABEL 34342133951540MACKIE ACTIVE LOGO 34343133951980RUNNING MAN LOGO 34844133990990PACKAGING BOX 34357133991000INTERNAL PACKAGING 34358133991010INTERNAL PACKAGING 34367433994410INTERNAL PACKAGING 35551133995370ANGLE 1800 3330233995500PACKAGE COVER 3570613399

39、5510PALLET 357051WOODEN PALLET PACKAGING43900580RUBBER “U” PROFILE 200S143900600GROMMET 34582243900820GASKET 32181151150351SCREW V.TC+M4 X30ZNN U7687851170415SCREW V.TSC+M5 X10ZNN U7689851190230SCREW V.TCEI M5 X20 ZNN U5931 10559 1/2251240211SCREW V.TC+AB 2,9X9,5ZNN U6954 12600 1/2151310402SCREW V.T

40、C+SL 3,5X10 ZNN151310523SCREW V.TC+SL 4X20 ZNN 6175 1/21651310545SCREW V.TC+SL 4X40 ZNN2251510221SCREW V.TC+AUTOP.DK3,5X19ZNC UNI 8118451991009SCREW V.TC+AUTOM. SW M4X10 ZNN U8112451992013SCREW V.T1/2T+SL 4X16 ZNN 344621252100110WASHER 4,3X 9ZNN U6592 6329 1/23952100116WASHER 5,3X10ZNC U6592 11618 1

41、/2252201004WASHER 5 DIN6798 0239254302001LOCK WASHER 35059283483019POWER CORD-USA C3C83-012E003183483013POWER CORD EU183483021POWER CORD U.K.1Components noted with this symbol shall be replaced only by thecomponent specified. This is required to maintain product safety.1123103130 AMPLIFIER SUBASSEMB

42、LY (115V Dual-voltage Xformer)PART#DESCRIPTIONQTYCOMMENTSSE034341SCHEMATIC123020490AMPLIFIER CIRCUIT BOARD ASSEMBLY1SEE PAGE 1223102690WIRE ASSEMBLY UR223103140WIRE ASSEMBLY UR133120320HEATSINK 343221HEATSINK33951510STICKER AMPLIFIER 34334151150316SCREW V.TC+M4 X10ZNN U7687 6233651180571SCREW V.TE M

43、8 X90ZNN U57391TRANSFORMER BOLT51240110SCREW V.TC+AB 2,2X9,5ZNC U6954 50452851240211SCREW V.TC+AB 2,9X9,5ZNN U6954 12600 1/2451250211SCREW V.TSP+AB2,9X9,5ZNN U6955 12596252100110WASHER 4,3X 9ZNN U6592 6329 1/2652100138WASHER 8,4X17ZNN U6592252201003WASHER 4 DIN6798 11647 1/2652201005WASHER 8 DIN6798

44、 176253301025NYLOCK NUT M81TRANSFORMER NUT81751005C1T51-008A -POWER TRANSFORMER1DUAL VOLTAGE TRANSFORMER83111141C3P11-003T402-FUSE 4 AT2FUSES83242013C3S42-015 -SWITCH183482004C3C82-004M003-RECESSED AC SOCKET1AC SOCKETComponents noted with this symbol shall be replaced only by thecomponent specified.

45、 This is required to maintain product safety.23103130 AMPLIFIER SUBASSEMBLY (115V Transformer)PART#DESCRIPTIONQTYCOMMENTS23020490AMPLIFIER CIRCUIT BOARD ASSEMBLY123102690WIRE ASSEMBLY UR223102740WIRE ASSEMBLY UR223103680WIRE ASSEMBLY GREEN/YELLOW133120320HEATSINK 34322133890200SPACER 35717233951510S

46、TICKER AMPLIFIER 34334151150331SCREW V.TC+M4 X16ZNN U7687651160335SCREW V.TSP+M4 X16ZNN U7688151190475SCREW V.TCEI M8X90 ZNN U5931151240211SCREW V.TC+AB 2.9X9.5ZNN U6954 12600 1/2451240303SCREW V.TC+ B 3.5X6.5ZNC U6954 116201051250211SCREW V.TSP+AB2.9X9.5ZNN U6955 12596252100110WASHER 4.3X 9ZNN U659

47、2 6329 1/2752100138WASHER 8.4X17ZNN U6592252100142WASHER 3.2X6 ZNN U6592452201003WASHER 4 DIN6798 11647 1/2852201005WASHER 8 DIN6798 176253102010NUT M 4 U5588-A-6S 01880 1/2253301025NUT M8 NYLOCK181751111C1T51-092A -POWER TRANSFORMER183111144C3P11-003T802-FUSE 8 AT283242013C3S42-015 -POWER SWITCH183

48、482004C3C82-004M003-AC SOCKET183822008C3A22-008 -ANCORAGGIO SN1NOTE: The earlier models used a dual voltage transformer as shown above. Later models use adifferent transformer for each of the four voltage models: 100, 115, 230 and 240VAC, as shownbelow and on the next two pages.1223103710 AMPLIFIER

49、SUBASSEMBLY (230V Transformer)PART#DESCRIPTIONQTYCOMMENTS23020490AMPLIFIER CIRCUIT BOARD ASSEMBLY123102690WIRE ASSEMBLY UR223102740WIRE ASSEMBLY UR223103680WIRE ASSEMBLY GREEN/YELLOW133120320HEATSINK 34322133890200SPACER 35717233951510STICKER AMPLIFIER 34334133953000STICKER 230V 35543151150331SCREW

50、V.TC+M4 X16ZNN U7687651160335SCREW V.TSP+M4 X16ZNN U7688151190475SCREW V.TCEI M8X90 ZNN U5931151240211SCREW V.TC+AB 2.9X9.5ZNN U6954 12600 1/2451240303SCREW V.TC+ B 3.5X6.5ZNC U6954 116201051250211SCREW V.TSP+AB2.9X9.5ZNN U6955 12596252100110WASHER 4.3X 9ZNN U6592 6329 1/2752100126WASHER 9X24 ZNC U6