ART300A
Active Loudspeaker
Service Manual
2002 MACKIE DESIGNS, INC.
ART300A Service Manual
SERVICE ON THIS EQUIPMENT IS TO BE PERFORMED BY
EXPERIENCED REPAIR TECHNICIANS ONLY
2
ART300A Service Manual
CONTENTS
Safety Instructions ........................................................... 2
Introduction ..................................................................... 4
Active Speaker Safety Test ............................................ 5
Overview.......................................................................... 7
Rear Panel ....................................................................... 8
Specifications .................................................................. 9
Parts ............................................................................... 10
Final Assembly............................................................ 10
Amplifer Assembly ..................................................... 11
Amplifier PCB Assembly ............................................ 12
Input Board Assembly and PCB............................... 14
RCF Parts Differences ................................................ 15
Main Circuit Board.......................................................... 16
Schematics
Crossover .............................................................. 16
High Frequency Amplifier.................................... 17
Low Frequency Amplifier..................................... 18
Power Supply ........................................................ 19
PCB Layout................................................................. 20
Input Board ...................................................................... 21
Schematic .................................................................. 21
PCB Layout................................................................. 22
3
ART300A Service Manual
Introduction
SERVICE ON THIS EQUIPMENT IS TO BE PERFORMED BY
EXPERIENCED REPAIR TECHNICIANS ONLY
About this Manual
This 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
•
Specifications 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 Assistance
Mackie 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 qualified Mackoid will return your call asap.
Disclaimer
The 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.
www.mackieindustrial.com
16220 Wood-Red Road NE, Woodinville, WA 98072 USA
TEL 888.337.7404, FAX 425.487.4337, industrial@mackie.com
UK +44.1268.571.212, FAX +44.1268.570.809 +industrial@rcf-uk.com
ITALY +39.0522.354.111, FAX +39.0522.926.208 +industrial@rcf.it
FRANCE +33.3.8546.9160, FAX +33.3.8546.9161 +rcf.commercial@wanadoo.fr
GERMANY +49.2572.96042.0, FAX +49.2572.96042.10 +industrial@mackie.de
4
ART300A Service Manual
Active speaker safety test
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 floating. 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.
5
ART300A Service Manual
Safety First!
Before connecting and using the equipment, please read the Quick-Start Guide
carefully and keep it for future reference.
Warning
This equipment has been designed to be installed by qualified 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 amplifier, make sure the unit is well ventilated.
Avoid exposure to direct sunlight or proximity to any heat source, dust, or
dampness.
Installation
A 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.
Warning
Never 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 five times the actual load.
6
ART300A Service Manual
Overview
The ART300A is a full-range two-way
professional active speaker system
that combines high power and wide
bandwidth in a light-weight enclosure
for fixed-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 amplifiers
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.
7
ART300A Service Manual
Rear Panel
1.
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 limiting 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.
8
7
6
5
4
3
2
1
Connections
The XLR connectors use the following AES
standard:
Pin 1 = Ground (Shield)
Pin 2 = Hot (+)
Pin 3 = Cold (–)
12 11 10
8
9
ART300A Service Manual
Specifications
System:
Amplifiers:
Freq. Range (–10 dB):
55Hz-19kHz
Freq. Response (±3 dB):
75Hz-16kHz
Horz. Coverage Angle (–6 dB):
90°, averaged 1kHz-10kHz
Vert. Coverage Angle (–6 dB):
70°, averaged 1kHz-10kHz
Directivity Factor Q (DI):
10.0 (10.0), averaged 1kHz-10kHz
System Sensitivity1:
101 dB, 1W@1m
Rated Maximum SPL2:
126 dB @ 1 m (3.3ft) peak
HF Protection:
Dynamic
LF Amplifier Power:
300 watts RMS
HF Amplifier Power:
60 watts RMS
Distortion:
< 0.1% THD at rated power
Amp Protection:
Thermal, limiter, short circuit
Power Supply:
115/230 VAC, 2A, 50/60 Hz
Transducers:
Low Frequency:
12" (300 mm) diameter woofer
High Frequency:
1" (25 mm) compression driver, horn loaded
Preamp and Processor:
Input Sensitivity:
Mic In: 8mV
Line In: 125mV
Input Impedance:
Mic In: 650Ω unbalanced
1.3kΩ balanced
Line In: 10kΩ unbalanced
19kΩ balanced
Crossover Frequency and Slope:
1.8kHz; 24 dB/octave
Time Alignment:
Analog, 0.3 ms HF delay
Speaker Protection:
Thermal, over-excursion
Music Equalization:
+4.3 dB @ 65Hz
+4.0 dB @ 12kHz
Voice Equalization:
+4.0 dB @ 3kHz
+4.0 dB @ 6kHz
Indicators:
Power ON, Limiter
Physical:
Enclosure:
Asymmetrical trapezoidal, reinforced
polypropylene
Mounting:
Lockable 1-3/8" (35mm) stand mount
Rigging Inserts:
4 points, accepts M10 threaded hardware
Input/Output Connectors:
2 XLR balanced
Dimensions 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 VDC
DC offset:
less than +/- 0.1 VDC
Bias:
At idle, into 8 ohm loads
after warm-up
adjust R36
5.5 mV R39-R40 (low freq amplifier)
adjust R73
13 mV R81-R82 (high freq amplifier)
AC current draw:
Less than 0.3 A at idle
9
ART300A Service Manual
ART300A Parts
13112024 ART300A Final Assembly
PART #
DESCRIPTION
21111060
23103350
23103360
23103450
23103620
25110480
33090090
33090400
33160530
33221060
33221130
33890100
33901250
33901270
33912130
33912160
33921210
33921480
33921510
33921540
33921580
33950280
33951920
33960580
33961560
33993020
33994990
33995000
33995350
33995360
33995370
33995380
43040390
43900110
43900580
43900810
43900820
43900830
51180425
51190205
51190336
51240411
51992008
51992010
52100101
52100121
52201009
52301004
59024072
83483019
WOOFER L12................................................................................................. 1
INPUT ASSEMBLY ........................................................................................... 1
AMPLIFIER ASSEMBLY ................................................................................... 1
ACCESSORY (FLOOR WEDGE ANTI-TIP-OVER THINGY) ............................ 1
WIRE ASSEMBLY ............................................................................................ 1
TWEETER N 350.............................................................................................. 1
CABINET FRONT 33526 ................................................................................. 1
CABINET REAR 34288 ................................................................................... 1
WOOFER GASKET 21202 .............................................................................. 1
WOOFER GRILL 31809.................................................................................. 1
CONTROL BOARD SHIELD 32656 ................................................................ 1
FEET 34287..................................................................................................... 4
HANDLE 31154.............................................................................................. 1
WIRE CABLE GROMMET 32498.................................................................... 1
ANTIVIBRATION 22867.................................................................................. 4
TRANSFORMER SPACERS 23128 .................................................................. 6
NUTS FOR MOUNTING INSERTS 22839 ......................................................... 4
MOUNTING INSERTS 31832 .......................................................................... 4
GRILL SPACERS 32515 .................................................................................. 4
TWEETER MOUNTING PLATES 32655 ............................................................ 2
SPACERS 33359 ............................................................................................ 8
MOUNTING INSERT COVER STICKERS (HEX) 23495 .................................... 4
TRADEMARK BADGE 34672 ......................................................................... 1
WARRANTY MOD.1712 ................................................................................ 1
INSTRUCTION GUIDE MOD.1743 ................................................................. 1
SHIPPING BOX 34673.................................................................................... 1
BOX PACKING 31914 ................................................................................... 2
BOX PACKING 31915 ................................................................................... 2
SHIPPING PALLET 33301 ...................................................................... 0.0833
BOX COVER 33303.............................................................................. 0.1666
ANGLE 1800 33302.............................................................................. 0.3333
BOX PACKING 33368 ................................................................................... 2
SOUND ABSORBER FOAM SP.15 DENS.50 ............................................... 24
STOPPER PLUG.............................................................................................. 1
U-SHAPED RUBBER GASKET ESPACE200 .............................................. 0.001
KNURLED KNOB 32243 ................................................................................. 1
GASKET 32181............................................................................................ 1.2
GASKET 32266.......................................................................................... 2.05
Screw, Hex, white galv, M6 x 18 mm, U5739 3055 ................................... 2
Screw, cylindrical, Allen, black galv, M5 x 10 mm, U5931 ...................... 4
Screw, cylindrical, Allen, black galv, M6 x 35, U5931 50762 ................... 4
Screw, cylindrical, Phillips, pointed, black galv, 3.9 x 13 mm, U6954 .... 4
Screw, cylindrical, Phillips, black galv, for plastic, 4.2 x 20 mm............ 20
Screw, roundhead, flange, Phillips, black galv, for plastic, 4.8 x 50 mm16
Washer, flat, 15 x 28 mm, white galv, U6592 ............................................ 4
Washer, flat, 6.4 x 12.5 mm, black galv, U6592 0174 ............................. 10
Washer, crinkle, 6 mm DIN6798 50383 ..................................................... 2
Washer, split, 6.4 mm U1751 171 1/2.......................................................... 2
PLASTIC BAG 600+100+100X1200 ............................................................... 1
LINECORD, USA, C3C83-012E003 ............................................................... 1
10
QUANTITY
NOTES
See page 14
See next page
ART300A Service Manual
Service Replacement Parts (boxed and packaged, ready to ship out)
PART #
DESCRIPTION
NOTES
11401023
11440039
15420008
15410084
Woofer L12ART300A
Woofer Recone kit L12ART300A
Tweeter ART 300/300A
Tweeter diaphragm M84
Boxed woofer (21111060 plus shipping box, packing etc)
Boxed Recone kit
Boxed Tweeter (25110480 plus shipping box, packing)
Boxed Tweeter diaphragm
23103360 ART300A Amplifier Assembly 115 VAC
PART #
DESCRIPTION
QUANTITY
23020400
23102640
23102650
23102660
23102670
23102680
23102750
23102760
33120230
33182100
33190190
33950120
43900130
43900840
51150316
51150325
51150346
51180545
51250211
52100113
52100126
52100127
52201003
52201005
53102010
53301026
53301035
81751094
83111142
83242016
83444023
83482004
83482006
97119549
AMPLIFIER PCB ASSEMBLY ........................................................................... 1
WIRE ASSEMBLY UL ....................................................................................... 1
WIRE ASSEMBLY UL ....................................................................................... 2
WIRE ASSEMBLY UL ....................................................................................... 1
WIRE ASSEMBLY UL ....................................................................................... 1
WIRE ASSEMBLY UL ....................................................................................... 1
WIRE ASSEMBLY UL ....................................................................................... 1
WIRE ASSEMBLY UL ....................................................................................... 1
HEATSINK 32924 ............................................................................................ 1
TRANSFORMER SUPPORT 31180 .................................................................. 1
REAR PANEL 34676....................................................................................... 1
UL STICKER 33539.......................................................................................... 1
GROUND CONNECTOER 33610.................................................................. 1
BRASS SPACERS 10 MM ............................................................................... 4
Screw, cylindrical, Phillips, black galv, M4 x 10 mm, U7687 6233 ........... 4
Screw, cylindrical, Phillips, white galv, M4 x 14 mm, U7687 6643 ......... 10
Screw, cylindrical, Phillips, black galv, M4 x 25 mm, U7687 .................... 4
Screw, Hex, white galv, M8 x 65 mm, U5737 ............................................ 1
Screw, flat, CSK, Phillips, blck galv, point, 2.9 x 9.5 mm, U6955 12596 ... 4
Washer, flat, 4,3 x 9, white galv, U6592 169 .............................................. 9
Washer, large flat, white galv, 9 x 24 mm, U6593 .................................... 1
Washer, white galv, 8.5 x 32 mm, 166 ....................................................... 1
Washer, crinkle, 4 mm DIN 6798-A ............................................................. 2
Washer, crinkle, 8 mm DIN6798 176........................................................... 1
Nut, M 4 U5588-A-6S 01880 1/2................................................................... 3
Nut, NYLOCK, M8 INOX ............................................................................... 1
Nut, flanged, white galv, M 4 DIN 6923................................................... 18
TRANSFORMER C1T51-079A ........................................................................ 1
FUSE C3P11-003T502 5 AT ............................................................................ 2
ILLUMINATED POWER SWITCH C3S42-016 ................................................. 1
FASTON CONNECTOR, MALE C3C44-013M001 .969/4............................. 1
RECESSED SOCKET, MALE C3C82-004M003 .............................................. 1
RECESSES SOCKET, FEMALE C3C82-006F003 ............................................. 1
GREEN/YELLOW WIRE 1 MMQ ................................................................. 10
NOTES
See next page
11
ART300A Service Manual
23020400 ART300A Amplifier PCB Assembly
PART #
DESCRIPTION
32030380
32180670
33120240
33120250
33910140
42901040
51160225
52100105
52201002
53101005
81121000
81121001
81121017
81121021
81121025
81121032
81121033
81121034
81121037
81121040
81121041
81121042
81121043
81121045
81121047
81121049
81121051
81121055
81121057
81121058
81121063
81121064
81121065
81121069
81121070
81121071
81121073
81121079
81121114
81121166
81121734
81121859
81127275
81138033
81182007
81231011
81241118
81241125
81241152
81241219
81243129
81412018
81413001
81413007
81413009
81413010
81413011
BARE CIRCUIT BOARD MR 31851-6 ............................................................. 1
SUPPORT 13391............................................................................................. 4
HEATSINK 32922 ............................................................................................ 1
HEATSINK 32923 ............................................................................................ 1
INSULATORS 33912 ..................................................................................... 13
ANTISTATIC LABEL 31101 .............................................................................. 1
Screw, flat, CSK, Phillips, black galv, M3 x 12 mm, U7688 ..................... 18
Washer, flat, 3,2 x 7, white galv, U6592 5320 ............................................ 8
Washer, crinkle, 3 mm DIN 6798 11628 1/2 ............................................. 18
Nut, M 3 U5588-A-6S 11625 ...................................................................... 18
RESISTOR, C1R21-251J0R0 1/4W5% 0 ....................................................... 66
RESISTOR, C1R21-251J010 1/4W5% 1.......................................................... 2
RESISTOR, C1R21-251J220 1/4W5% 22........................................................ 4
RESISTOR, C1R21-251J470 1/4W5% 47........................................................ 4
RESISTOR, C1R21-251J101 1/4W5% 100.................................................... 12
RESISTOR, C1R21-251J391 1/4W5% 390...................................................... 4
RESISTOR, C1R21-251J471 1/4W5% 470...................................................... 2
RESISTOR, C1R21-251J561 1/4W5% 560...................................................... 6
RESISTOR, C1R21-251J102 1/4W5% 1K ....................................................... 9
RESISTOR, C1R21-251J182 1/4W5% 1.8K .................................................... 6
RESISTOR, C1R21-251J222 1/4W5% 2.2K .................................................. 24
RESISTOR, C1R21-251J272 1/4W5% 2700.................................................... 1
RESISTOR, C1R21-251J332 1/4W5% 3.3K .................................................... 3
RESISTOR, C1R21-251J472 1/4W5% 4.7K .................................................... 5
RESISTOR, C1R21-251J682 1/4W5% 6.8K .................................................... 2
RESISTOR, C1R21-251J103 1/4W5% 10K ................................................... 17
RESISTOR, C1R21-251J153 1/4W5% 15K ..................................................... 1
RESISTOR, C1R21-251J333 1/4W5% 33K ..................................................... 1
RESISTOR, C1R21-251J473 1/4W5% 47K ..................................................... 5
RESISTOR, C1R21-251J563 1/4W5% 56K ..................................................... 1
RESISTOR, C1R21-251J154 1/4W5% 150K ................................................... 3
RESISTOR, C1R21-251J184 1/4W5% 180K ................................................... 2
RESISTOR, C1R21-251J224 1/4W5% 220K ................................................... 1
RESISTOR, C1R21-251J474 1/4W5% 470K ................................................... 1
RESISTOR, C1R21-251J564 1/4W5% 560K ................................................... 1
RESISTOR, C1R21-251J684 1/4W5% 680K ................................................... 1
RESISTOR, C1R21-251J105 1/4W5% 1M ...................................................... 5
RESISTOR, C1R21-501J2R7 1/2W5% 2.7 ...................................... 1/2 watt 4
RESISTOR, C1R21-501J222 1/2W5% 2.2K .................................... 1/2 watt 2
RESISTOR, C1R21-251J106 1/4W5% 10M .................................................... 1
RESISTOR, C1R21-251F1002 1/4W1% 10K .................................................. 8
RESISTOR, C1R21-251F2003 1/4W1% 200K ................................................. 1
RESISITOR, FUSIBLE, C1R27-162K470 1.6W10% 47....................................... 2
RESISTOR, HIGH VOLTAGE C1R38-501J475 1/2W5% 4.7M........................ 1
TRIM POT C1R82-001K102 1K....................................................................... 2
RESISTOR, WIRE WOUND, C1F31-202J2R2 2W 5% 2.2................................ 2
RESISTOR, WIRE WOUND, C1F41-302K472 3W10% 4.7K ............................ 2
RESISTOR, WIRE WOUND, C1F41-502JR15-RES.FILO 5W5% 0.15 ............... 2
RESISTOR, WIRE WOUND, C1F41-502J4R7-RES.FILO 5W5% 4.7 ................. 2
RESISTOR, WIRE WOUND, C1F41-502K100-RES.FILO 5W10% 10 ................ 2
RESISTOR, WIRE WOUND, C1F43-502JR33-RES.FILO 5W5% 0.33 ............... 2
CAPACITOR, FILM, C1C12-101K684 100V10%680N .................................. 2
CAPACITOR, FILM, C1C13-101K102 100V10% 1N ..................................... 4
CAPACITOR, FILM, C1C13-101K103 100V10% 10N ................................... 4
CAPACITOR, FILM, C1C13-101K223 100V10% 22N ................................... 6
CAPACITOR, FILM, C1C13-101K333 100V10% 33N ................................... 2
CAPACITOR, FILM, C1C13-101K473 100V10% 47N ................................... 1
12
QUANTITY
NOTES
See pages 16-20
ART300A Service Manual
PART #
DESCRIPTION
QUANTITY
81413013
81413017
81413022
81421007
81421013
81421017
81421019
81421023
81422010
81521034
81521045
81521046
81521051
81521072
81521075
81521078
81533020
81632055
82112001
82112002
82131013
82131015
82172010
82172012
82175010
82212002
82212017
82212018
82212019
82222007
82222008
82222011
82222012
82231022
82231023
82231028
82231029
82232003
82232004
82242007
82242008
82262005
82262014
82262015
82312004
82312005
82512008
82561001
83111049
83111053
83142005
83144013
83182005
83432031
83432033
83444020
83811002
83811009
83812001
CAPACITOR, FILM, C1C13-101K104-COND.FILM100V10% 100N ........... 17
CAPACITOR, FILM, C1C13-630K683-COND.FILM63V10% 68N ................. 2
CAPACITOR, FILM, C1C13-630K474-COND.FILM63V10% 470N ............... 2
CAPACITOR, CERAMIC, C1C21-500K100 50V10% 10 P ........................... 4
CAPACITOR, CERAMIC, C1C21-500K330 50V10% 33P ............................ 1
CAPACITOR, CERAMIC, C1C21-500K680 50V10% 68 P ........................... 2
CAPACITOR, CERAMIC, C1C21-500K101 50V10% 100 P ......................... 1
CAPACITOR, CERAMIC, C1C21-500K221 50V10% 220P .......................... 1
CAPACITOR, CERAMIC, C1C22-500*681 50V10% 680P ........................... 2
CAPACITOR, ELECTROLYTIC, C1E21-160*220 16V 22U ............................. 2
CAPACITOR, ELECTROLYTIC, C1E21-250*2R2 25V 2.2U............................ 1
CAPACITOR, ELECTROLYTIC, C1E21-250*4R7 25V 4.7U............................ 1
CAPACITOR, ELECTROLYTIC, C1E21-250*221 25V 220U ........................... 2
CAPACITOR, ELECTROLYTIC, C1E21-630*010 63V1U ................................ 3
CAPACITOR, ELECTROLYTIC, C1E21-630*100 63V10U .............................. 2
CAPACITOR, ELECTROLYTIC, C1E21-630*101 63V100U ............................ 2
CAPACITOR, ELECTROLYTIC, C1E33-500*682 50V 6800U ......................... 4
INDUCTOR C1L32-040A331 ......................................................................... 2
DIODE C2D12-750*151 1N4148................................................................. 29
DIODE C2D12-201*251 BAV21 .................................................................... 4
ZENER DIODE C2D31-132J120 1.3W 12V.................................................... 4
ZENER DIODE C2D31-132J150 1.3W 15V.................................................... 1
DIODE C2D72-102*102 1N4007................................................................. 12
DIODE C2D72-401*312 MR854.................................................................... 2
DIODE BRIDGE C2D75-211*402 4A............................................................ 2
TRANSISTOR C2T12-101B450 BC560/C ....................................................... 5
TRANSISTOR C2T12-600B150 2N5401 .......................................................... 5
TRANSISTOR C2T12-600A160 2N5551.......................................................... 5
TRANSISTOR C2T12-101C450 BC550 ........................................................... 7
TRANSISTOR C2T22-302A800 BD179 ........................................................... 1
TRANSISTOR C2T22-302B800 BD180 ............................................................ 1
TRANSISTOR C2T22-101A301 BF871 ............................................................ 1
TRANSISTOR C2T22-101B301 BF872 ............................................................. 1
TRANSISTOR C2T31-802A151 MJE15030 ..................................................... 1
TRANSISTOR C2T31-802B151 MJE15031...................................................... 1
TRANSISTOR C2T31-153B231 2SC5200 ........................................................ 1
TRANSISTOR C2T31-153A231 2SA1943........................................................ 1
TRANSISTOR C2T32-253A400 TIP35.............................................................. 1
TRANSISTOR C2T32-253B400 TIP36 .............................................................. 1
TRANSISTOR C2T42-502A800 TIP126............................................................ 1
TRANSISTOR C2T42-502B800 TIP121 ............................................................ 1
TRANSISTOR C2T62-800A250 J108 .............................................................. 2
MOSFET TRANSISTOR C2T62-313A101 IRFP140........................................... 1
MOSFET TRANSISTOR C2T62-193A101 IRFP9140......................................... 1
INTEGRATED CIRCUIT C2A12-15534 NE5534.............................................. 1
INTEGRATED CIRCUIT C2A12-25532 NE5532.............................................. 9
LED GREEN C2F12-008................................................................................. 4
OPTOCOUPLER C2F61-001*5C8 VTL .......................................................... 1
FUSE C3P11-001F252 2.5AF.......................................................................... 2
FUSE C3P11-001F632 6.3 AF......................................................................... 2
CAPACITOR, FILM, C3P42-251K224 250V10% 0.22.................................... 1
CAPACITOR, CERAMIC, C3P44-250M103M 250V20% 10N ...................... 1
FUSEHOLDER C3P82-005.............................................................................. 4
CONNECTOR 10 PIN, C3C32-012M010 10P............................................... 1
CONNECTOR 6 PIN, C3C32-012M006 6P................................................... 1
FASTON MALE CONNECTOR C3C44-020M001 ....................................... 18
INSULATOR STRIP C3A11-002....................................................................... 3
INSULATOR STRIP C3A11-009....................................................................... 3
INSULATING WASHER C3A12-001 ............................................................... 3
FROM NOV 2002: 82312005 I.C.NE5532 has been replaced with 0004634 NJM4580
NOTES
SEE NOTE BELOW
13
ART300A Service Manual
23103350 Input Assembly
PART #
DESCRIPTION
QUANTITY
22040930
23020360
23102780
33170050
51240211
83881020
83882016
WIRE ASSEMBLY POWER ............................................................................. 1
INPUT PCB ASSEMBLY................................................................................... 1
WIRE ASSEMBLY UL ....................................................................................... 1
COVER PLATE 34675 .................................................................................... 1
Screw, cylindrical, blck galv, point, 2.9 x 9.5 mm, U6954 12600 1/2 ...... 4
KNOB C3A81-020 ......................................................................................... 1
BLACK BUTTONS C3A82-016 ....................................................................... 3
NOTES
SEE BELOW
23020360 Input PCB Assembly
See the schematic on page 21, PCB layout on page 22
PART #
DESCRIPTION
33032120
52201005
81121025
81121030
81121033
81121034
81121037
81121041
81121049
81121051
81121061
81121073
81132089
81311074
81413001
81413005
81413007
81413013
81421013
81421015
81521075
81572003
82112001
82312005
82511006
82512008
83231021
83414019
83414020
83432033
83822029
97123005
BARE CIRCUIT BOARD MR 31850-3 ............................................................. 1
WASHER 8 DIN6798 176 ............................................................................... 1
RESISITOR C1R21-251J101 1/4W5% 100...................................................... 2
RESISITOR C1R21-251J271 1/4W5% 270...................................................... 1
RESISITOR C1R21-251J471 1/4W5% 470...................................................... 1
RESISITOR C1R21-251J561 1/4W5% 560...................................................... 2
RESISITOR C1R21-251J102 1/4W5% 1K........................................................ 2
RESISITOR C1R21-251J222 1/4W5% 2.2K..................................................... 1
RESISITOR C1R21-251J103 1/4W5% 10K...................................................... 3
RESISITOR C1R21-251J153 1/4W5% 15K...................................................... 1
RESISITOR C1R21-251J104 1/4W5% 100K.................................................... 1
RESISITOR C1R21-251J105 1/4W5% 1M ...................................................... 4
RESISITOR, METAL, C1R32-501G473 1/2W2% 47K ...................................... 4
POT, C1P11-063A503-POTENZIOMETRO 50K.............................................. 1
CAPACITOR, FILM C1C13-101K102 100V10% 1N ...................................... 2
CAPACITOR, FILM C1C13-101K472 100V10% 4.7N ................................... 2
CAPACITOR, FILM C1C13-101K103 100V10% 10N .................................... 1
CAPACITOR, FILM C1C13-101K104 100V10% 100N .................................. 1
CAPACITOR, CERAMIC C1C21-500K330 50V10% 33P ............................. 2
CAPACITOR, CERAMIC C1C21-500K470 50V10% 47 P ............................ 2
CAPACITOR, ELECTROLYTIC C1E21-630*100 63V10U ............................... 2
CAPACITOR, BIPOLAR C1E72-350*222 BPM 35VDC20% 2.2U.................. 1
DIODE C2D12-750*151 1N4148................................................................... 4
INTEGRATED CIRCUIT C2A12-25532 NE5532.............................................. 2
LED, RED C2F11-006 ..................................................................................... 1
LED, GREEN C2F12-008................................................................................ 1
DOUBLE SWITCHES C3S31-0210202 ............................................................ 3
MALE XLR CONNECTOR C3C14-017M003 3P............................................ 1
FEMALE XLR CONNECTOR C3C14-017F003 3P ......................................... 1
6-PIN CONNECTOR C3C32-012M006......................................................... 1
TIE DOWN C3A22-029.................................................................................. 1
YELLOW WIRE 1.5 MMQ............................................................................... 8
14
QUANTITY
NOTES
SEE PAGES 21-22
ART300A Service Manual
RCF ART300A parts
Summary of Differences
The 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.
13110049 RCF ART300A Final Assembly
These parts differ from the Mackie ART300A final assembly:
PART #
DESCRIPTION
QUANTITY
23102060
23102460
23102900
32970150
333950530
33955180
33960330
33994980
ACCESSORY (ANTI-TIP OVER WEDGE) ....................................................... 1
INPUT ASSEMBLY ........................................................................................... 1
AMPLIFIER ASSEMBLY115V........................................................................... 1
BOX LABEL 31167 ......................................................................................... 2
SERIAL NUMBER LABEL50487 ....................................................................... 3
RCF TRADEMARK BADGE 32180 ................................................................. 1
INSTRUCTION GUIDE MOD.1630-2 .............................................................. 1
SHIPPING BOX 31916.................................................................................... 1
NOTES
See below
See below
23102900 RCF ART300A Amplifier Assembly
These parts differ from the Mackie ART300A amplifier assembly:
PART #
DESCRIPTION
QUANTITY
33191290
33955480
REAR PANEL 33543....................................................................................... 1
CAUTION LABEL 32650................................................................................. 1
NOTES
23102460 RCF ART300A Input Assembly
These parts differ from the Mackie ART300A input assembly:
PART #
DESCRIPTION
QUANTITY
33170820
INPUT BOARD COVER PLATE 33270 ............................................................ 1
NOTES
15
D
C
B
A
1
2
3
4
5
6
7
8
9
10
1
-5V
1
C35
+
1u
-15V
+15V
R94
D40
10K
10K
R96
2
BC550
Q30
R128
100
3
1
220p
C34
R129
100K
10K
2
1
IC3A
NE5532
-15V
4
R130
3K3
-15V
BC560
Q29
+
R93
ISO1
3
+15V
8
2 -
3
C40
C53
10n
C52
3
1
+15V
D39
BC550
Q31
2
R98
M68
C42
680n
C41
1u
2
+
8
2
3
R131
1M
+
8
R126
C51
4u7
C50
10u
+
D33
D34
R137
220K
C47
470n
C48
680n
R104
10K
R99
7
-15V
4
1M
1M
R100
R125 1M
4
+
8
+15V
4K7
2 -
3
R122 1M
R124
R123
R105
100
10K
IC6B
NE5532
-15V
4
6 -
5
+15V
8
R92
10K
C37 10n
R87
4
1
5
1
IC8
1
R101
6
D36
D38
D37
R132
10K
R136
10K
D35
1K8
IC5A
R120 10K
R119 10K
5
R135 1K
NE5532
R121 10K
4
-15V
10K 1%
R112
+
8
2 -
3
+
1
-15V
4
6 -
5
+15V
8
3
2
3
2
NE5532
6
IC5B
10K 1%
R109
R103
R114 1K
1K8
6
C46
33n
5
6
+15V
7
4
4
5
6
10K
-15V
8
7
7
4
-15V
4
8
+15V
3
2
-15V
C57
22n
3
2
8
+15V
R107
R117 2K7
1
IC10A
NE5532
R115 1K
NE5532
IC4A
10K 1%
R108
IC7B
NE5532
-15V
+15V
R133
IC9B
NE5532
7
C56
22n
-15V
4
8
+
8
+15V
6 -
5
R110 10K 1%
1K8
C45 68n
7
R111
IC10B
NE5532
7
R138
-15V
4
8
+15V
150K
R116 1K
IC4B
NE5532
10K 1%
C49 100n
1
10K 1%
5
6
C58
22n
C54
1u
7
R118 47K
-15V
4
8
+15V
R106
10K 1%
8
+
8
Sheet 4 of 5
SE031851
ART300A Final Filter 31/01/1997
5
6
LOW
HIGH
ART300A Service Manual
-15V
4
8
+15V
1
10K 1%
IC9A
NE5532
1
C55
22n
-15V
4
8
+15V
R113
R102
7
IC2B
NE5532
IC7A
MC34001P
+15V
22n
C43 68n
R90
3K3
C39
4K7
R134 10K
C44
33n
-15V
MC34001P
4
2 -
3 +
7
+15V
1K8
IC2A
NE5532
C38 22n
R88
5
ART 300A Low/High Crossover
+
+
C36 10n
1
2K2
R127 2K2
-15V
4
3K3
IC6A
NE5532
+15V
100
2 -
3
BC550
3 Q32
1
R97
7
IC3B
NE5532
R95
-15V
4
6 -
5
+15V
R999
1K
2u2
R91
10K
10n
3
R89 4K7
NOTE: ALL DIODES NOT SPECIFIED ARE 1N4148
D41
2
+
CON1
+5V
-
+
16
1
D
C
B
A
D
C
B
A
C23 100n
100n
C24
C21
1n
R51 2K2
1
C27 100u
R50
47K
C25 68p
5
6
R78 15K
1
- ALL DIODES NOT SPECIFIED ARE 1N4148
HIGH
R53 10K
1
+
17
4
8
2
R52 560
R83 47K
IC1B
MC34002P
7
2
3
R85
SIGN A2
3
R55
2K2
R63
2K2
2
D23
DL4
LED
D24
R67
2K2
C30
D27
R58
2K2
3
C32
33p
4
2
10p
R73
1K
R65
560
2
R74
1K8
C31 10p
D26
Q16
2N5401
R59
2K2
R57 6K8
R54
2K2
Q17
2N5551
D31
1N4007
D30
1N4007
D22
1N4007
D29
3
1
BC560
Q26
Q25
2N5551
R64
390
1
3
C26
100n
Q20
BC550
3
Q24
2N5401
R61
390
2
5
R70
1K
R69
1K
R66 100
D32
1
3
2
BC550
Q21
D25
R62 100
5
2
3
R68
470
2
Q19
2N5551
Q18
2N5401
1
1
3
ART 300A High Frequency Amplifier
-15V
560
2
DL3
LED
R56
2K2
+15V
D28
R60
2K2
4
3
R80
2K2 1/2W
R79
2K2 1/2W
R72
22
2R7
1/2W
R77
Q27
BD179
2
Q28
BD180
2R7
1/2W
R75
R71
22
1
6
1
2
3
R81
5W
0.33
R82
5W
0.33
Q23
TIP35C
Q22
TIP36C
3
2
7
7
C29
100n
C28
100n
F4
10
5W
4uH
R86
2.5AT
C33
47n
R84
10
3W
L2
F3 2.5AT
ART300A Service Manual
1
R76
47
3
2
6
-40V
CF4
CF3
HIGH
OUT
+40V
8
Sheet 3 of 5
SE031851
ART300A FINAL HIGH
8
D
C
B
A
18
D
C
B
A
LOW
C3
1
100n
R4
1
100u
C6
R41
R2
47K
R1
47K
3
2
68p
33K
C5 100n
4
8
1
C2
100n
IC1A
MC34002P
2
2
- ALL DIODES NOT SPECIFIED ARE 1N4148
C17
C4
100n
C1
1n
R3 2K2
10K
+
R49 560
R47
SIGN A1
3
-15V
560
DL2
LED
D4
R17
2K2
D9
D5
DL1
LED
R7
2K2
R6
2K2
+15V
3
C10
D7
Q15
Q14
BF871
C9
10p
BAV21
100p
R36
1K
R15
560
R37
1K8
10p
BF872
C8 100n
4
R14
390
C20
100n
BC560
Q5
R16 100
C11
100n
Q6
BC550
R12 100
R11
390
R19 2R2 3W
D13
R22
1K
R21
1K
BC550
Q13
D6
R18 2R2 3W
Q3
2N5401
R20
470
5
R44
47
Q4
2N5551
5
Q8
MJE15031
2R7 1/2W
R43
R34
22
R24 2K2
R23 2K2
R35
22
2R7 1/2W
R45
Q7
MJE15030
ART 300A Low Frequency Amplifier
R13
2K2
D8
R8
2K2
Q1
2N5401
R9
2K2
C7
R48 6K8
R5
2K2
Q2
2N5551
D12
1N4007
D11
1N4007
D1
1N4007
BAV21
D10
R10
2K2
4
6.3AT
12V
DZ4
12V
DZ3
R28
47
C18
680p
R27 100
3W
R30
4K7
C15
22u
16V
C19
22u
16V
R29
4K7
3W
R26 100
C16
680p
R25
47
+
+
C13
1n
C12
1n
7
D17
D20 MR854
12V
DZ2
12V
DZ1
D21 MR854
D14
7
L1 4uH
D2
1N4007
BAV21
D15
R32
150K
R38 180K
R33
4R7 5W
D19
8
8
D18
C14
100n
R46 4R7 5W
D3
1N4007
R42 180K
R31
150K
BAV21
D16
ART300A Service Manual
6
IRFP9140
Q11
F2 6.3AT
Q10
2SA1302
5W
R40
0.15
R39
0.15
5W
Q9
2SC3281
F1
Q12
IRFP140
6
-80V
-40V
ART300A FINAL LOW
Sheet 2 of 5
SE031851
CF2
CF1
LOW
OUT
+40V
+80V
D
C
B
A
D
C
2
3
1
2
3
1
F
F
T6.3A
T2.5A
C
C
SW
C
SW
1
FOR 115VAC POWER SUPPLY, CHANGE FUSE TO T 6.3A
115V
SW
230V
SW
C
2
CF17
C22 220n
CF16
CF17
C22 220n
CF16
2
CF10
CF11
CF12
CF13
CF14
CF15
CF10
CF11
CF12
CF13
CF14
CF15
2
4
3
1
TR
TR
6
8
9
7
5
3
CF9
CF8
CF7
CF6
CF5
CF9
CF8
CF7
CF6
CF5
3
60Vac
30Vac
0V
30Vac
60Vac
60Vac
30Vac
0V
30Vac
60Vac
1
4
4
J108
Q38
J108
Q37
DB2
GBU4D
1
- +
3
SIGN A2
SIGN A1
4
2
100K
5
R141 100K
R140
+
+
+
+
5
C62
6800u
50V
C61
6800u
50V
C60
6800u
50V
C59
6800u
50V
-80V
-40V
+40V
+80V
R142 10M
-40V
6
R150
10K
Q36
BC560
D44
1N4148
DZ5
15V
R149
100
R148
2K2
1,6W
100
R152
+40V
10n
4.7M
R139
C63
6
2
1
2
1
3
TIP126
Q35
BC560
Q34
C69
10u
R151
2K2
+
3
Q33
TIP121
CF18
R144
56K
C68
220u
16V
2
2
R145 1
C66
470n
C70
220u
16V
VOUT
1N4007
LM7905
1
3
VOUT
1N4007
R146 1
D49
LM1
VIN
VIN
R154
4K7
7
D46
LM2
LM7805
R147
4K7
3
1
7
+
+
ART300A Service Manual
1,6W
R143 100
R153
100K
D45 1N4148
C64
100n
ART 300A Power Supply
DB1
GBU4D
2
3
4
GND
B
A
1
GND
19
C65
100n
C67
100n
D48
1N4007
D47
1N4007
-15V
+15V
-5V
+5V
8
SE031851
ART300A Power Supply
Sheet 5 of 3
8
D
C
B
A
20
ART 300A Main Circuit Board 31851
ART300A Service Manual
21
ART 300A Input Board
ART300A Service Manual
VOLUME
POT
ART300A Service Manual
OPERATE
LED
ART 300A Input Board 31850
LIMITER
LED
MUSIC
SWITCH
VOICE
SWITCH
LINE/MICRO
SWITCH
22
XLR OUTPUT
XLR INPUT
Traces and pads looking
from the top, through the board.