art300a_sm_1

22
ART300A Active Loudspeaker Service Manual 2002 MACKIE DESIGNS, INC.

Upload: aieie

Post on 09-Dec-2015

3 views

Category:

Documents


2 download

DESCRIPTION

rcf art 300 service manual

TRANSCRIPT

Page 1: ART300A_sm_1

ART300AActive Loudspeaker

Service Manual

2002 MACKIE DESIGNS, INC.

Page 2: ART300A_sm_1

2

ART300A Service Manual

SERVICE ON THIS EQUIPMENT IS TO BE PERFORMED BY EXPERIENCED REPAIR TECHNICIANS ONLY

Page 3: ART300A_sm_1

3

ART300A Service Manual

CONTENTSSafety Instructions ........................................................... 2Introduction ..................................................................... 4Active Speaker Safety Test ............................................ 5Overview.......................................................................... 7Rear Panel ....................................................................... 8Specifi cations .................................................................. 9

Parts ............................................................................... 10 Final Assembly............................................................ 10 Amplifer Assembly ..................................................... 11 Amplifi er PCB Assembly ............................................ 12 Input Board Assembly and PCB............................... 14 RCF Parts Differences................................................ 15

Main Circuit Board.......................................................... 16 Schematics Crossover .............................................................. 16 High Frequency Amplifi er.................................... 17 Low Frequency Amplifi er..................................... 18 Power Supply........................................................ 19 PCB Layout................................................................. 20

Input Board...................................................................... 21 Schematic .................................................................. 21 PCB Layout................................................................. 22

Page 4: ART300A_sm_1

4

ART300A Service Manual

Introduction

About this ManualThis manual contains the basic repair information for the ART series loudspeakers. For each model, the following information is supplied:

• Safety information

• Overview

• Rear panel view and features

• Specifi cations and test details

• Parts list, containing a master parts list and sub-assembly parts

• Parts list differences between RCF and Mackie Industrial ART speakers

• Schematics

• PCB layout drawing

It is essential that you have a copy of the user’s manual as this contains the complete operating instructions.

Service Technical AssistanceMackie Designs, Service Technical Assistance, is available 8AM - 5PM PST, Monday through Friday for Authorized Mackie Service Centers, at 1-800-258-6883. Feel free to call with any questions and speak with a carefully-calibrated technician. If one is not available, leave a detailed message and a qualifi ed Mackoid will return your call asap.

DisclaimerThe information contained in this manual is proprietary to Mackie Designs, Inc. The entire manual is protected under copyright and may not be reproduced by any means without express written permission from Mackie Designs, Inc.

SERVICE ON THIS EQUIPMENT IS TO BE PERFORMED BY EXPERIENCED REPAIR TECHNICIANS ONLY

www.mackieindustrial.com16220 Wood-Red Road NE, Woodinville, WA 98072 USATEL 888.337.7404, FAX 425.487.4337, [email protected] +44.1268.571.212, FAX +44.1268.570.809 [email protected] +39.0522.354.111, FAX +39.0522.926.208 [email protected] +33.3.8546.9160, FAX +33.3.8546.9161 [email protected] +49.2572.96042.0, FAX +49.2572.96042.10 [email protected]

Page 5: ART300A_sm_1

5

ART300A Service Manual

You must perform the following leakage test before returning any active speakers 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 AC volt meter between the AC power source ground and any exposed metal on the unit under test.

2. Connect the unit under test to an AC power source using a ground-lift adaptor, leaving the unit’s safety ground fl oating. Turn the unit on.

3. The meter reading should be less than 750mVAC (note: this is equivalent to 0.5mA of leakage current).

4. Flip the plug over in the receptical so the hot 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 speaker before returning it to your customer.

Active speaker safety test

Page 6: ART300A_sm_1

6

ART300A Service Manual

Safety First!Before connecting and using the equipment, please read the Quick-Start Guide carefully and keep it for future reference.

WarningThis equipment has been designed to be installed by qualifi ed professionals only! There are many factors to be considered when installing professional sound reinforcement systems, including mechanical and electrical considerations, as well as acoustic coverage and performance. Mackie Industrial strongly recommends that this equipment be installed only by a professional sound installer or contractor.

1. Never install, connect, or disconnect the unit with the power supply on.

2. Before powering up the speaker, make sure the voltage select switch corresponds to the AC Voltage supply.

3. Make sure the safety ground on the power cord is properly grounded.

4. To prevent the risk of electric shock, never open the unit. There are no user serviceable parts inside.

5. To ensure normal cooling of the amplifi er, make sure the unit is well ventilated. Avoid exposure to direct sunlight or proximity to any heat source, dust, or dampness.

InstallationA 1-3/8" (35mm) socket is provided in the bottom of the cabinet for mounting the loudspeaker on a speaker stand.

The speaker can be suspended with approved rigging hardware. Always use at least two M10 threaded inserts located on opposite sides of the enclosure. The speaker must be positioned so that the weight of the enclosure is equally distributed over the two inserts.

WarningNever attempt to suspend the ART Series loudspeakers by their handles. Consult a professional rigger or structural engineer prior to suspending loudspeakers from a structure not intended for that use. Always know the working load limit of the structure supporting the loudspeaker array. Always make sure that the rigging hardware minimum rating is at least fi ve times the actual load.

Page 7: ART300A_sm_1

7

ART300A Service Manual

OverviewThe ART300A is a full-range two-way professional active speaker system that combines high power and wide bandwidth in a light-weight enclosure for fi xed-installation systems. The 12" low-frequency transducer, in combination with a 1" compression driver coupled to an integral 90º x 70º constant directivity polynomial horn, form an extremely powerful package for any small to medium-sized sound reinforcement application.

It features a balanced XLR input with a Mic/Line switch and a paralleled balanced XLR output for cascading multiple speakers. Rear panel controls also include Music and Voice equalization switches, a rotary volume control, and an input limiter.

The two built-in power amplifi ers provide 300W for the LF driver and 60W for the HF driver. The enclosure is constructed of high-strength polypropylene, with M10 threaded inserts on all four sides for rigging, and an integral locking 1-3/8" socket in the bottom for mounting on a standard speaker stand.

Page 8: ART300A_sm_1

8

ART300A Service Manual

Rear Panel1. INPUT is a balanced XLR input jack that

accepts mic-level or line-level signals.2. OUTPUT is a balanced XLR output jack in

parallel with the INPUT jack, allowing the signal to “loop through” for daisy-chaining speakers together.

3. LINE/MIC switch for mic-level or line-level signals at the INPUT.

4. VOICE equalization switch ON provides a gentle boost at 3kHz and 6kHz.

5. MUSIC equalization switch ON provides a low-frequency and high-frequency boost.

6. LIMITER indicator illuminates when the limit-ing protection circuits are activated.

7. OPERATE indicator illuminates when the POWER switch is turned on.

8. VOLUME control adjusts the input-stage gain.

9. POWER switch turns the AC power on and off.

10. AC OUTLET for connecting AC power to an additional Mackie Industrial active speaker system.

11. Grounding Terminal provides an additional safety grounding point.

12. IEC AC Socket. Connect the detachable power cord to the socket. The protection fuse is also contained in the AC socket.

CAUTION: Replace fuse only with the same type as indicated on the rear panel.

ConnectionsThe XLR connectors use the following AES

standard: Pin 1 = Ground (Shield) Pin 2 = Hot (+) Pin 3 = Cold (–)

12

45

3

8

10 912 11

76

Page 9: ART300A_sm_1

9

ART300A Service Manual

Specifi cationsSystem:Freq. Range (–10 dB): 55Hz-19kHzFreq. Response (±3 dB): 75Hz-16kHzHorz. Coverage Angle (–6 dB): 90°, averaged 1kHz-10kHzVert. Coverage Angle (–6 dB): 70°, averaged 1kHz-10kHzDirectivity Factor Q (DI): 10.0 (10.0), averaged 1kHz-10kHzSystem Sensitivity1: 101 dB, 1W@1mRated Maximum SPL2: 126 dB @ 1 m (3.3ft) peakHF Protection: Dynamic

Transducers:Low Frequency: 12" (300 mm) diameter wooferHigh Frequency: 1" (25 mm) compression driver, horn loaded

Preamp and Processor:Input Sensitivity: Mic In: 8mV Line In: 125mVInput Impedance: Mic In: 650Ω unbalanced 1.3kΩ balanced Line In: 10kΩ unbalanced 19kΩ balancedCrossover Frequency and Slope: 1.8kHz; 24 dB/octaveTime Alignment: Analog, 0.3 ms HF delaySpeaker Protection: Thermal, over-excursionMusic Equalization: +4.3 dB @ 65Hz +4.0 dB @ 12kHzVoice Equalization: +4.0 dB @ 3kHz +4.0 dB @ 6kHzIndicators: Power ON, Limiter

Amplifi ers:LF Amplifi er Power: 300 watts RMSHF Amplifi er Power: 60 watts RMSDistortion: < 0.1% THD at rated powerAmp Protection: Thermal, limiter, short circuitPower Supply: 115/230 VAC, 2A, 50/60 Hz

Physical: Enclosure: Asymmetrical trapezoidal, reinforced polypropyleneMounting: Lockable 1-3/8" (35mm) stand mountRigging Inserts: 4 points, accepts M10 threaded hardwareInput/Output Connectors: 2 XLR balancedDimensions HxWxD: 24.4" x 15.4" x 12.3" (620 mm x 390 mm x 312 mm) Net Weight: 44.0 lb (20.0 kg)

Testing: DC voltages: + 83 VDC - 83 VDC + 41 VDC - 41 VDC + 15 VDC - 15 VDCDC offset: less than +/- 0.1 VDCBias: At idle, into 8 ohm loads after warm-up adjust R36 5.5 mV R39-R40 (low freq amplifi er) adjust R73 13 mV R81-R82 (high freq amplifi er)AC current draw: Less than 0.3 A at idle

Page 10: ART300A_sm_1

10

ART300A Service Manual

ART300A Parts

13112024 ART300A Final AssemblyPART # DESCRIPTION QUANTITY NOTES

21111060 WOOFER L12................................................................................................. 123103350 INPUT ASSEMBLY ........................................................................................... 1 See page 14 23103360 AMPLIFIER ASSEMBLY ................................................................................... 1 See next page23103450 ACCESSORY (FLOOR WEDGE ANTI-TIP-OVER THINGY) ............................ 123103620 WIRE ASSEMBLY ............................................................................................ 125110480 TWEETER N 350.............................................................................................. 133090090 CABINET FRONT 33526 ................................................................................. 133090400 CABINET REAR 34288 ................................................................................... 133160530 WOOFER GASKET 21202 .............................................................................. 133221060 WOOFER GRILL 31809.................................................................................. 133221130 CONTROL BOARD SHIELD 32656 ................................................................ 133890100 FEET 34287..................................................................................................... 433901250 HANDLE 31154.............................................................................................. 133901270 WIRE CABLE GROMMET 32498.................................................................... 133912130 ANTIVIBRATION 22867.................................................................................. 433912160 TRANSFORMER SPACERS 23128 .................................................................. 633921210 NUTS FOR MOUNTING INSERTS 22839 ......................................................... 433921480 MOUNTING INSERTS 31832 .......................................................................... 433921510 GRILL SPACERS 32515.................................................................................. 433921540 TWEETER MOUNTING PLATES 32655 ............................................................ 233921580 SPACERS 33359 ............................................................................................ 833950280 MOUNTING INSERT COVER STICKERS (HEX) 23495 .................................... 433951920 TRADEMARK BADGE 34672 ......................................................................... 133960580 WARRANTY MOD.1712 ................................................................................ 133961560 INSTRUCTION GUIDE MOD.1743 ................................................................. 133993020 SHIPPING BOX 34673.................................................................................... 133994990 BOX PACKING 31914 ................................................................................... 233995000 BOX PACKING 31915 ................................................................................... 233995350 SHIPPING PALLET 33301 ...................................................................... 0.083333995360 BOX COVER 33303.............................................................................. 0.166633995370 ANGLE 1800 33302.............................................................................. 0.333333995380 BOX PACKING 33368 ................................................................................... 243040390 SOUND ABSORBER FOAM SP.15 DENS.50 ............................................... 2443900110 STOPPER PLUG.............................................................................................. 143900580 U-SHAPED RUBBER GASKET ESPACE200 .............................................. 0.00143900810 KNURLED KNOB 32243 ................................................................................. 143900820 GASKET 32181............................................................................................ 1.243900830 GASKET 32266.......................................................................................... 2.0551180425 Screw, Hex, white galv, M6 x 18 mm, U5739 3055 ................................... 251190205 Screw, cylindrical, Allen, black galv, M5 x 10 mm, U5931 ...................... 451190336 Screw, cylindrical, Allen, black galv, M6 x 35, U5931 50762 ................... 451240411 Screw, cylindrical, Phillips, pointed, black galv, 3.9 x 13 mm, U6954 .... 451992008 Screw, cylindrical, Phillips, black galv, for plastic, 4.2 x 20 mm............ 2051992010 Screw, roundhead, fl ange, Phillips, black galv, for plastic, 4.8 x 50 mm1652100101 Washer, fl at, 15 x 28 mm, white galv, U6592 ............................................ 452100121 Washer, fl at, 6.4 x 12.5 mm, black galv, U6592 0174 ............................. 1052201009 Washer, crinkle, 6 mm DIN6798 50383 ..................................................... 252301004 Washer, split, 6.4 mm U1751 171 1/2.......................................................... 259024072 PLASTIC BAG 600+100+100X1200............................................................... 183483019 LINECORD, USA, C3C83-012E003 ............................................................... 1

Page 11: ART300A_sm_1

11

ART300A Service Manual

23103360 ART300A Amplifi er Assembly 115 VACPART # DESCRIPTION QUANTITY NOTES

23020400 AMPLIFIER PCB ASSEMBLY ........................................................................... 1 See next page23102640 WIRE ASSEMBLY UL ....................................................................................... 123102650 WIRE ASSEMBLY UL ....................................................................................... 223102660 WIRE ASSEMBLY UL ....................................................................................... 123102670 WIRE ASSEMBLY UL ....................................................................................... 123102680 WIRE ASSEMBLY UL ....................................................................................... 123102750 WIRE ASSEMBLY UL ....................................................................................... 123102760 WIRE ASSEMBLY UL ....................................................................................... 133120230 HEATSINK 32924............................................................................................ 133182100 TRANSFORMER SUPPORT 31180 .................................................................. 133190190 REAR PANEL 34676....................................................................................... 133950120 UL STICKER 33539.......................................................................................... 143900130 GROUND CONNECTOER 33610.................................................................. 143900840 BRASS SPACERS 10 MM ............................................................................... 451150316 Screw, cylindrical, Phillips, black galv, M4 x 10 mm, U7687 6233........... 451150325 Screw, cylindrical, Phillips, white galv, M4 x 14 mm, U7687 6643 ......... 1051150346 Screw, cylindrical, Phillips, black galv, M4 x 25 mm, U7687.................... 451180545 Screw, Hex, white galv, M8 x 65 mm, U5737 ............................................ 151250211 Screw, fl at, CSK, Phillips, blck galv, point, 2.9 x 9.5 mm, U6955 12596 ... 452100113 Washer, fl at, 4,3 x 9, white galv, U6592 169 .............................................. 952100126 Washer, large fl at, white galv, 9 x 24 mm, U6593 .................................... 152100127 Washer, white galv, 8.5 x 32 mm, 166 ....................................................... 152201003 Washer, crinkle, 4 mm DIN 6798-A............................................................. 252201005 Washer, crinkle, 8 mm DIN6798 176........................................................... 153102010 Nut, M 4 U5588-A-6S 01880 1/2................................................................... 353301026 Nut, NYLOCK, M8 INOX............................................................................... 153301035 Nut, fl anged, white galv, M 4 DIN 6923................................................... 1881751094 TRANSFORMER C1T51-079A ........................................................................ 183111142 FUSE C3P11-003T502 5 AT ............................................................................ 283242016 ILLUMINATED POWER SWITCH C3S42-016 ................................................. 183444023 FASTON CONNECTOR, MALE C3C44-013M001 .969/4............................. 183482004 RECESSED SOCKET, MALE C3C82-004M003 .............................................. 183482006 RECESSES SOCKET, FEMALE C3C82-006F003 ............................................. 197119549 GREEN/YELLOW WIRE 1 MMQ ................................................................. 10

PART # DESCRIPTION NOTES

11401023 Woofer L12ART300A Boxed woofer (21111060 plus shipping box, packing etc)11440039 Woofer Recone kit L12ART300A Boxed Recone kit15420008 Tweeter ART 300/300A Boxed Tweeter (25110480 plus shipping box, packing)15410084 Tweeter diaphragm M84 Boxed Tweeter diaphragm

Service Replacement Parts (boxed and packaged, ready to ship out)

Page 12: ART300A_sm_1

12

ART300A Service Manual

23020400 ART300A Amplifi er PCB AssemblyPART # DESCRIPTION QUANTITY NOTES

32030380 BARE CIRCUIT BOARD MR 31851-6 ............................................................. 1 See pages 16-2032180670 SUPPORT 13391............................................................................................. 433120240 HEATSINK 32922............................................................................................ 133120250 HEATSINK 32923............................................................................................ 133910140 INSULATORS 33912 ..................................................................................... 1342901040 ANTISTATIC LABEL 31101.............................................................................. 151160225 Screw, fl at, CSK, Phillips, black galv, M3 x 12 mm, U7688 ..................... 1852100105 Washer, fl at, 3,2 x 7, white galv, U6592 5320 ............................................ 852201002 Washer, crinkle, 3 mm DIN 6798 11628 1/2 ............................................. 1853101005 Nut, M 3 U5588-A-6S 11625 ...................................................................... 1881121000 RESISTOR, C1R21-251J0R0 1/4W5% 0 ....................................................... 6681121001 RESISTOR, C1R21-251J010 1/4W5% 1.......................................................... 281121017 RESISTOR, C1R21-251J220 1/4W5% 22........................................................ 481121021 RESISTOR, C1R21-251J470 1/4W5% 47........................................................ 481121025 RESISTOR, C1R21-251J101 1/4W5% 100.................................................... 1281121032 RESISTOR, C1R21-251J391 1/4W5% 390...................................................... 481121033 RESISTOR, C1R21-251J471 1/4W5% 470...................................................... 281121034 RESISTOR, C1R21-251J561 1/4W5% 560...................................................... 681121037 RESISTOR, C1R21-251J102 1/4W5% 1K ....................................................... 981121040 RESISTOR, C1R21-251J182 1/4W5% 1.8K .................................................... 681121041 RESISTOR, C1R21-251J222 1/4W5% 2.2K .................................................. 2481121042 RESISTOR, C1R21-251J272 1/4W5% 2700.................................................... 181121043 RESISTOR, C1R21-251J332 1/4W5% 3.3K .................................................... 381121045 RESISTOR, C1R21-251J472 1/4W5% 4.7K .................................................... 581121047 RESISTOR, C1R21-251J682 1/4W5% 6.8K .................................................... 281121049 RESISTOR, C1R21-251J103 1/4W5% 10K ................................................... 1781121051 RESISTOR, C1R21-251J153 1/4W5% 15K ..................................................... 181121055 RESISTOR, C1R21-251J333 1/4W5% 33K ..................................................... 181121057 RESISTOR, C1R21-251J473 1/4W5% 47K ..................................................... 581121058 RESISTOR, C1R21-251J563 1/4W5% 56K ..................................................... 181121063 RESISTOR, C1R21-251J154 1/4W5% 150K ................................................... 381121064 RESISTOR, C1R21-251J184 1/4W5% 180K ................................................... 281121065 RESISTOR, C1R21-251J224 1/4W5% 220K ................................................... 181121069 RESISTOR, C1R21-251J474 1/4W5% 470K ................................................... 181121070 RESISTOR, C1R21-251J564 1/4W5% 560K ................................................... 181121071 RESISTOR, C1R21-251J684 1/4W5% 680K ................................................... 181121073 RESISTOR, C1R21-251J105 1/4W5% 1M ...................................................... 581121079 RESISTOR, C1R21-501J2R7 1/2W5% 2.7 ...................................... 1/2 watt 481121114 RESISTOR, C1R21-501J222 1/2W5% 2.2K .................................... 1/2 watt 281121166 RESISTOR, C1R21-251J106 1/4W5% 10M .................................................... 181121734 RESISTOR, C1R21-251F1002 1/4W1% 10K .................................................. 881121859 RESISTOR, C1R21-251F2003 1/4W1% 200K ................................................. 181127275 RESISITOR, FUSIBLE, C1R27-162K470 1.6W10% 47....................................... 281138033 RESISTOR, HIGH VOLTAGE C1R38-501J475 1/2W5% 4.7M........................ 181182007 TRIM POT C1R82-001K102 1K....................................................................... 281231011 RESISTOR, WIRE WOUND, C1F31-202J2R2 2W 5% 2.2................................ 281241118 RESISTOR, WIRE WOUND, C1F41-302K472 3W10% 4.7K ............................ 281241125 RESISTOR, WIRE WOUND, C1F41-502JR15-RES.FILO 5W5% 0.15 ............... 281241152 RESISTOR, WIRE WOUND, C1F41-502J4R7-RES.FILO 5W5% 4.7 ................. 281241219 RESISTOR, WIRE WOUND, C1F41-502K100-RES.FILO 5W10% 10 ................ 281243129 RESISTOR, WIRE WOUND, C1F43-502JR33-RES.FILO 5W5% 0.33 ............... 281412018 CAPACITOR, FILM, C1C12-101K684 100V10%680N .................................. 281413001 CAPACITOR, FILM, C1C13-101K102 100V10% 1N ..................................... 481413007 CAPACITOR, FILM, C1C13-101K103 100V10% 10N ................................... 481413009 CAPACITOR, FILM, C1C13-101K223 100V10% 22N ................................... 681413010 CAPACITOR, FILM, C1C13-101K333 100V10% 33N ................................... 281413011 CAPACITOR, FILM, C1C13-101K473 100V10% 47N ................................... 1

Page 13: ART300A_sm_1

13

ART300A Service Manual

PART # DESCRIPTION QUANTITY NOTES

81413013 CAPACITOR, FILM, C1C13-101K104-COND.FILM100V10% 100N........... 1781413017 CAPACITOR, FILM, C1C13-630K683-COND.FILM63V10% 68N................. 281413022 CAPACITOR, FILM, C1C13-630K474-COND.FILM63V10% 470N............... 281421007 CAPACITOR, CERAMIC, C1C21-500K100 50V10% 10 P ........................... 481421013 CAPACITOR, CERAMIC, C1C21-500K330 50V10% 33P ............................ 181421017 CAPACITOR, CERAMIC, C1C21-500K680 50V10% 68 P ........................... 281421019 CAPACITOR, CERAMIC, C1C21-500K101 50V10% 100 P ......................... 181421023 CAPACITOR, CERAMIC, C1C21-500K221 50V10% 220P .......................... 181422010 CAPACITOR, CERAMIC, C1C22-500*681 50V10% 680P ........................... 281521034 CAPACITOR, ELECTROLYTIC, C1E21-160*220 16V 22U............................. 281521045 CAPACITOR, ELECTROLYTIC, C1E21-250*2R2 25V 2.2U............................ 181521046 CAPACITOR, ELECTROLYTIC, C1E21-250*4R7 25V 4.7U............................ 181521051 CAPACITOR, ELECTROLYTIC, C1E21-250*221 25V 220U........................... 281521072 CAPACITOR, ELECTROLYTIC, C1E21-630*010 63V1U................................ 381521075 CAPACITOR, ELECTROLYTIC, C1E21-630*100 63V10U.............................. 281521078 CAPACITOR, ELECTROLYTIC, C1E21-630*101 63V100U............................ 281533020 CAPACITOR, ELECTROLYTIC, C1E33-500*682 50V 6800U......................... 481632055 INDUCTOR C1L32-040A331 ......................................................................... 282112001 DIODE C2D12-750*151 1N4148................................................................. 2982112002 DIODE C2D12-201*251 BAV21 .................................................................... 482131013 ZENER DIODE C2D31-132J120 1.3W 12V.................................................... 482131015 ZENER DIODE C2D31-132J150 1.3W 15V.................................................... 182172010 DIODE C2D72-102*102 1N4007................................................................. 1282172012 DIODE C2D72-401*312 MR854.................................................................... 282175010 DIODE BRIDGE C2D75-211*402 4A............................................................ 282212002 TRANSISTOR C2T12-101B450 BC560/C ....................................................... 582212017 TRANSISTOR C2T12-600B150 2N5401 .......................................................... 582212018 TRANSISTOR C2T12-600A160 2N5551.......................................................... 582212019 TRANSISTOR C2T12-101C450 BC550........................................................... 782222007 TRANSISTOR C2T22-302A800 BD179 ........................................................... 182222008 TRANSISTOR C2T22-302B800 BD180 ............................................................ 182222011 TRANSISTOR C2T22-101A301 BF871 ............................................................ 182222012 TRANSISTOR C2T22-101B301 BF872 ............................................................. 182231022 TRANSISTOR C2T31-802A151 MJE15030 ..................................................... 182231023 TRANSISTOR C2T31-802B151 MJE15031...................................................... 182231028 TRANSISTOR C2T31-153B231 2SC5200 ........................................................ 182231029 TRANSISTOR C2T31-153A231 2SA1943........................................................ 182232003 TRANSISTOR C2T32-253A400 TIP35.............................................................. 182232004 TRANSISTOR C2T32-253B400 TIP36 .............................................................. 182242007 TRANSISTOR C2T42-502A800 TIP126............................................................ 182242008 TRANSISTOR C2T42-502B800 TIP121 ............................................................ 182262005 TRANSISTOR C2T62-800A250 J108 .............................................................. 282262014 MOSFET TRANSISTOR C2T62-313A101 IRFP140........................................... 182262015 MOSFET TRANSISTOR C2T62-193A101 IRFP9140......................................... 182312004 INTEGRATED CIRCUIT C2A12-15534 NE5534.............................................. 182312005 INTEGRATED CIRCUIT C2A12-25532 NE5532.............................................. 9 SEE NOTE BELOW82512008 LED GREEN C2F12-008................................................................................. 482561001 OPTOCOUPLER C2F61-001*5C8 VTL .......................................................... 183111049 FUSE C3P11-001F252 2.5AF.......................................................................... 283111053 FUSE C3P11-001F632 6.3 AF......................................................................... 283142005 CAPACITOR, FILM, C3P42-251K224 250V10% 0.22.................................... 183144013 CAPACITOR, CERAMIC, C3P44-250M103M 250V20% 10N ...................... 183182005 FUSEHOLDER C3P82-005.............................................................................. 483432031 CONNECTOR 10 PIN, C3C32-012M010 10P............................................... 183432033 CONNECTOR 6 PIN, C3C32-012M006 6P................................................... 183444020 FASTON MALE CONNECTOR C3C44-020M001 ....................................... 1883811002 INSULATOR STRIP C3A11-002....................................................................... 383811009 INSULATOR STRIP C3A11-009....................................................................... 383812001 INSULATING WASHER C3A12-001 ............................................................... 3

FROM NOV 2002: 82312005 I.C.NE5532 has been replaced with 0004634 NJM4580

Page 14: ART300A_sm_1

14

ART300A Service Manual

23103350 Input AssemblyPART # DESCRIPTION QUANTITY NOTES

22040930 WIRE ASSEMBLY POWER ............................................................................. 123020360 INPUT PCB ASSEMBLY................................................................................... 1 SEE BELOW23102780 WIRE ASSEMBLY UL ....................................................................................... 133170050 COVER PLATE 34675 .................................................................................... 151240211 Screw, cylindrical, blck galv, point, 2.9 x 9.5 mm, U6954 12600 1/2 ...... 483881020 KNOB C3A81-020 ......................................................................................... 183882016 BLACK BUTTONS C3A82-016 ....................................................................... 3

23020360 Input PCB AssemblySee the schematic on page 21, PCB layout on page 22PART # DESCRIPTION QUANTITY NOTES

33032120 BARE CIRCUIT BOARD MR 31850-3 ............................................................. 1 SEE PAGES 21-2252201005 WASHER 8 DIN6798 176 ............................................................................... 181121025 RESISITOR C1R21-251J101 1/4W5% 100...................................................... 281121030 RESISITOR C1R21-251J271 1/4W5% 270...................................................... 181121033 RESISITOR C1R21-251J471 1/4W5% 470...................................................... 181121034 RESISITOR C1R21-251J561 1/4W5% 560...................................................... 281121037 RESISITOR C1R21-251J102 1/4W5% 1K........................................................ 281121041 RESISITOR C1R21-251J222 1/4W5% 2.2K..................................................... 181121049 RESISITOR C1R21-251J103 1/4W5% 10K...................................................... 381121051 RESISITOR C1R21-251J153 1/4W5% 15K...................................................... 181121061 RESISITOR C1R21-251J104 1/4W5% 100K.................................................... 181121073 RESISITOR C1R21-251J105 1/4W5% 1M ...................................................... 481132089 RESISITOR, METAL, C1R32-501G473 1/2W2% 47K ...................................... 481311074 POT, C1P11-063A503-POTENZIOMETRO 50K.............................................. 181413001 CAPACITOR, FILM C1C13-101K102 100V10% 1N ...................................... 281413005 CAPACITOR, FILM C1C13-101K472 100V10% 4.7N ................................... 281413007 CAPACITOR, FILM C1C13-101K103 100V10% 10N .................................... 181413013 CAPACITOR, FILM C1C13-101K104 100V10% 100N .................................. 181421013 CAPACITOR, CERAMIC C1C21-500K330 50V10% 33P ............................. 281421015 CAPACITOR, CERAMIC C1C21-500K470 50V10% 47 P ............................ 281521075 CAPACITOR, ELECTROLYTIC C1E21-630*100 63V10U............................... 281572003 CAPACITOR, BIPOLAR C1E72-350*222 BPM 35VDC20% 2.2U.................. 182112001 DIODE C2D12-750*151 1N4148................................................................... 482312005 INTEGRATED CIRCUIT C2A12-25532 NE5532.............................................. 282511006 LED, RED C2F11-006..................................................................................... 182512008 LED, GREEN C2F12-008................................................................................ 183231021 DOUBLE SWITCHES C3S31-0210202 ............................................................ 383414019 MALE XLR CONNECTOR C3C14-017M003 3P............................................ 183414020 FEMALE XLR CONNECTOR C3C14-017F003 3P ......................................... 183432033 6-PIN CONNECTOR C3C32-012M006......................................................... 183822029 TIE DOWN C3A22-029.................................................................................. 197123005 YELLOW WIRE 1.5 MMQ............................................................................... 8

Page 15: ART300A_sm_1

15

ART300A Service Manual

23102460 RCF ART300A Input AssemblyThese parts differ from the Mackie ART300A input assembly:

PART # DESCRIPTION QUANTITY NOTES

33170820 INPUT BOARD COVER PLATE 33270............................................................ 1

13110049 RCF ART300A Final AssemblyThese parts differ from the Mackie ART300A fi nal assembly:

PART # DESCRIPTION QUANTITY NOTES

23102060 ACCESSORY (ANTI-TIP OVER WEDGE) ....................................................... 123102460 INPUT ASSEMBLY ........................................................................................... 1 See below23102900 AMPLIFIER ASSEMBLY115V........................................................................... 1 See below32970150 BOX LABEL 31167 ......................................................................................... 2333950530 SERIAL NUMBER LABEL50487 ....................................................................... 333955180 RCF TRADEMARK BADGE 32180 ................................................................. 133960330 INSTRUCTION GUIDE MOD.1630-2 .............................................................. 133994980 SHIPPING BOX 31916.................................................................................... 1

23102900 RCF ART300A Amplifi er AssemblyThese parts differ from the Mackie ART300A amplifi er assembly:

PART # DESCRIPTION QUANTITY NOTES

33191290 REAR PANEL 33543....................................................................................... 133955480 CAUTION LABEL 32650................................................................................. 1

RCF ART300A parts

Summary of DifferencesThe main differences between the RCF brand and the Mackie brand ART300A are: the rear panel silkscreens, the front badges, the shipping boxes and literature.

The following parts are used in the RCF brand ART300A US model. The other parts, not shown, are the same as the Mackie model.

Page 16: ART300A_sm_1

ART

300A

Ser

vice

Man

ual

16

R126

2K

2

R127

2K

2

R129

100K

Q29

BC

560

1

2

Q30

BC

550

2

Q31

BC

550

2

Q32

BC

550

2

R131

1M

D39

R130

3K

3

R128

100

+15V

-15V

1 3

1

1

3

3

NO

TE

: A

LL D

IOD

ES

NO

T S

PE

CIF

IED

AR

E 1

N4148

3

R104

10K C47

470n

R105

100

R119

10K

R120

10K

R121

10K

R122

1M

R123

1M

R124

1M

R125

1M

R132

10K

R134

10K

R136

10K

R137

220K

R98

M68

C51

4u7

+D

33

D34

D35

D36

D37 D

38

C42

680n

C48

680n

C50

10u

+

IC6A

NE

5532

3 21

+ -+15V

-15V

48

R96

10K

R97

100

C41

1u

+

ISO

1R

999

1K

R99

10K

C44

33n

R100

1K

81

IC6B

NE

5532

5 67

+ -

IC8

MC

34001P

3 26

+ -+15V

-15V

-15V

4

471

5

R107

10K

1%

R108

10K

1%

R109

10K

1%

R110

10K

1%

R112

10K

1%

R113

10K

1%

R114

1K

R115

1K

R135

1K

C55

22n

C56

22n

C57

22n

IC4A

NE

5532

2 31

IC5B

NE

5532

6 57

IC5A

NE

5532

2 31

R138

150K

+15V

+15V

+15V

-15V

-15V

-15V

48

4

8

48

R111

10K

1%

R116

1K

C49

100n

IC9A

NE

5532

2 31

IC9B

NE

5532

6 57

IC10B

NE

5532

6 57

IC10A

NE

5532

2 31

IC4B

NE

5532

R133

10K

+15V

+15V

+15V

+15V

-15V

-15V

-15V

-15V

8 44

8

8 448

R117

2K

7

R102

1K

8R

103

1K

8

C46

33n

R106

10K

1%

R118

47K

C54 1u

+

C58

22n

IC7B

NE

5532

5 67

+ -

6 57

+15V

-15V

-15V

LO

W

48

48

IC7A

MC

34001P

3 21

+ - -15V

4

R87

4K

7R

88

4K

7

R92

10K

C37

10n

C38

22n

C39

22n

C43

68n

R101

1K

8

R90

3K

3

IC2A

NE

5532

3 21

+ -

IC2B

NE

5532

5 6

+ -

+15V

+15V

+15V

-15V

-15V

48

8

48

7

C45

68n

+15V

HIG

H

R89

4K

7

R93

10K

C34

220p

R94

10K

C36

10n

R95

3K

3

D40

D41

C52

10n

C53

10n C40

2u2

+R91

10K

IC3B

NE

5532

5 67

+ -

IC3A

NE

5532

3 21

+ -

+15V

+15V

-15V

-15V

4

48

8

+15V

8

C35

1u

+

CO

N1 1 2 3 4 5 6 7 8 9 1

0

-15

V-5

V+

5V

+1

5V

-

12

34

A B C D

12

34

56

78

Sheet 4 o

f 5

SE

031851

AR

T300A

Fin

al F

ilter

31/0

1/1

997

C DB

56

78

A

ART

300

A L

ow/H

igh

Cro

ssov

er

Page 17: ART300A_sm_1

ART

300A

Ser

vice

Man

ual

17

D22

1N

4007

D30

1N

4007

D31

1N

4007

R67

2K

2

+15V

R56

2K

2

2

DL3

LE

D D24

R54

2K

2

Q1

72N

5551

R57

6K

8

C30

33p

R59

2K

2

Q1

62N

5401

R55

2K

2

R58

2K

2

D23

2

DL4

LE

D

3

D26

R82

0.3

35W

Q23

TIP

35C

2 3

R7

7

Q27

BD

179

2 1

R72

222

R7

1/2

W R80

2K

21/2

W

R76

47

R69

1K

R62

100

R68

470

D25 Q21

BC

550

Q20

BC

550

C26

100n

R74

1K

8

2

R65

560 R

73

1K

3

R60

2K

2390

D29

C31

10p

D28

Q19

2N

5551

2

Q24

2N

5401

3

3 1

R70 1K

R81

0.3

35W

Q26

BC

560

22

R79

2K

21/2

W

1 3

3

1C

33

47n

C29

100n

R86

10

5W

CF

3

CF

4

L2

4uH

R84

10

3W

F4

2.5

AT

-40V

OU

T

HIG

H

R66

100

D32

R71

22

Q2

2T

IP36C

1

Q1

82N

5401

2

3

R75

2R

7

1/2

W

Q28

BD

180

31

21

3 2

R63

2K

2R

64

390

D27

C32

10p

Q25

2N

5551

2-1

5V

3 1

C21

1n

R50

47K

R51

2K

2

C25

68p

R85

560

R52

560

R78

15K

R53

10K C

27

100u1

+

C23

100n

C24

100n

IC1B

MC

34002P

6 5

SIG

N A

2

HIG

H8 4

7

R83

47K

C28

100n

F3

2.5

AT

+40V

- A

LL D

IOD

ES

NO

T S

PE

CIF

IED

AR

E 1

N4148

Sheet 3 o

f 5

SE

031851

AR

T300A

FIN

AL H

IGH

56

78

C DBA

56

78

23

41

A B C D

12

34

R61

ART

300

A H

igh

Freq

uenc

y A

mpl

ifi er

Page 18: ART300A_sm_1

ART

300A

Ser

vice

Man

ual

18

R5

2K

2 C7

100p

R9

R10

2K

2

R11

390

R12

100

R15

560

R21

1K

D4

D5

D6

D9

D10

BA

V21

R37

1K

8

R48

6K

8

Q15

BF

872

Q7

MJE

15030

560

Q2

2N

5551

Q4

2N

5551

Q6

BC

550

DL1

LE

D

DL2

C8

100n

C11

100n

R18

2R

23W

C10

10p

R17

2K

2

Q13

BC

550

R36 1K

D1

1N

4007

D11

1N

4007

D12

1N

4007

+15V

R20

470

R22 1K

R23

2K

2

R35

22

R39

0.1

55W

R40

0.1

5

5W

R44

47

Q12

IRF

P140

Q9

2S

C3281

DZ

3 12V

R45

2R

71/2

W

F1

6.3

AT

R7

2K

2

R25

47

R26

100

C16

680p

R29

4K

73W

C19

22u

16V

C12

1n

D14

D16

BA

V21

R31

150K R

42

D21

MR

854

+

DZ

112V

D3

1N

4007

D18

D19

R38

180K

180K

C14 1

00n

R33

4R

75W

R46

4R

75W

CF

2

CF

1

L1

4uH

+80V

+40V

OU

T

LO

W

R27

100

R28

47

D2

1N

4007

C13

1n

D15

BA

V21

D17

R32

150K

C18

680p

D20

MR

854

Q11

IRF

P9140

Q10

2S

A1302

C15

22u

16V

+

R30

4K

7

3W

DZ

212V

DZ

412V

F2

6.3

AT

-80V

-40V

R16

100

R24

2K

2

D13

R34

22

Q8

MJE

15031

Q3

2N

5401

C20

100n

R19

2R

23W

R43

2R

71/2

W

R6

2K

2

R8

2K

2

2K

2

C9

10p

R13

2K

2R

14

390

D7

BA

V21

D8

Q14

BF

871

Q1

2N

5401

Q5

BC

560

LE

D

-15V

C1

1n

R1

47K

R2

47K

R47

R49

560

C17

100u

+

C4

100n

C2

100n

IC1A

MC

34002P

SIG

N A

1

R3

2K

2

R4

C3

100n

2 31

48

10K

C6

68p

R41

33K

C5

100n

- A

LL D

IOD

ES

NO

T S

PE

CIF

IED

AR

E 1

N4148

LO

W

A B C D

12

34

56

78

Sh

ee

t 2

of

5

SE

03

18

51

AR

T3

00

A F

INA

L L

OW

A B C D

67

83

45

12

ART

300

A L

ow F

requ

ency

Am

plifi

er

Page 19: ART300A_sm_1

ART

300A

Ser

vice

Man

ual

19

C63

10n

R139 4

.7M

D46

1N

4007

D47

1N

4007

D48

1N

4007

D49

1N

4007

CF

18

LM

1LM

7905

VIN

3

GND

VO

UT

LM

2LM

7805

VIN

1GND

VO

UT

2

+40V

+80V

+40V

-40V

-80V

-5V

+5V

13

C5

96800u

50V

+

C6

06800u

50V

+

C6

16800u

50V

+

C6

26800u

50V

+

DB

2G

BU

4D1

-

2

3

4

100

2

2

3

3

R152

100

1,6

W

Q33

TIP

121

R148

2K

2

R149

R147

4K

7

C68

220u

16V

+

R146

1

C69

10u

C65

100n

2

+15V

1

1

A B

46

78

5

+

D44

1N

4148

+

Q36

BC

560

DZ

515V

CF

10

CF

11

CF

12

CF

13

CF

14

CF

15

FO

R 1

15V

AC

PO

WE

R S

UP

PLY

, C

HA

NG

E F

US

E T

O T

6.3

A

FT

6.3

A

SW

115V

1 3 2

CF

5

CF

6

CF

7

CF

8

CF

9

CF

16

CF

17

TR

SW

C22

220n

C

C

0V

60V

ac

30V

ac

30V

ac

60V

ac

CF

14

CF

13

CF

12

CF

11

CF

10

CF

15

CF

16

CF

17

TR

1 2

5 7 8 69

3 4

SW

SW

230V

1 3 2

C22

220n

C

C

FT

2.5

A

60V

ac

30V

ac

0V

30V

ac

60V

ac

CF

9

CF

8

CF

7

CF

6

CF

5

DB

1G

BU

4D

2

13

4

Q3

7J108

R140

100K

D45

1N

4148

SIG

N A

1

SIG

N A

2

C66

470n

R150

10K

R151

2K

2

C70

220u

16V

+

R145

1

R154

4K

7R

144

56K

Q34

BC

560

C67

100n

Q35

TIP

126

-15V

Q38

J108

R153

100K

R142

10M

R141

100K

C64

100n

R143

100

-40V

1,6

W

Sh

ee

t 5

of

3

SE

03

18

51

AR

T3

00

A P

ow

er

Su

pp

ly

45

67

8

C D

12

3

C DA B

12

3

ART

300

A P

ower

Sup

ply

Page 20: ART300A_sm_1

ART

300A

Ser

vice

Man

ual

20

ART

300

A M

ain

Circ

uit B

oard

318

51

Page 21: ART300A_sm_1

ART

300A

Ser

vice

Man

ual

21

ART

300

A In

put B

oard

Page 22: ART300A_sm_1

ART

300A

Ser

vice

Man

ual

22

XLR

INP

UT

XLR

OU

TP

UT

VO

ICE

SW

ITC

H

MU

SIC

SW

ITC

H

LIMIT

ER

LED

OP

ER

ATE

LED

VO

LUM

EP

OT

LINE

/MIC

RO

SW

ITC

H

Traces and pads looking from the top, through the board.

ART 300A Input Board 31850