art300a_sm_1
DESCRIPTION
rcf art 300 service manualTRANSCRIPT
ART300AActive Loudspeaker
Service Manual
2002 MACKIE DESIGNS, INC.
2
ART300A Service Manual
SERVICE ON THIS EQUIPMENT IS TO BE PERFORMED BY EXPERIENCED REPAIR TECHNICIANS ONLY
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
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]
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
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.
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.
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
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
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
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)
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
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
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
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.
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
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
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
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
ART
300A
Ser
vice
Man
ual
20
ART
300
A M
ain
Circ
uit B
oard
318
51
ART
300A
Ser
vice
Man
ual
21
ART
300
A In
put B
oard
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