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ART300A

Active Loudspeaker

Service Manual



2002 MACKIE DESIGNS, INC.

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Summary of Contents for ART300A

Page 1: ...ART300A Active Loudspeaker Service Manual 2002 MACKIE DESIGNS INC...

Page 2: ...2 ART300A Service Manual SERVICE ON THIS EQUIPMENT IS TO BE PERFORMED BY EXPERIENCED REPAIR TECHNICIANS ONLY...

Page 3: ...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...

Page 4: ...ters 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 c...

Page 5: ...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 th...

Page 6: ...he 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 sunl...

Page 7: ...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 a...

Page 8: ...minates 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 A...

Page 9: ...ker 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 Amplifiers LF Amplifier Power 300 watts RMS HF...

Page 10: ...N GUIDE MOD 1743 1 33993020 SHIPPING BOX 34673 1 33994990 BOX PACKING 31914 2 33995000 BOX PACKING 31915 2 33995350 SHIPPING PALLET 33301 0 0833 33995360 BOX COVER 33303 0 1666 33995370 ANGLE 1800 333...

Page 11: ...t 2 9 x 9 5 mm U6955 12596 4 52100113 Washer flat 4 3 x 9 white galv U6592 169 9 52100126 Washer large flat white galv 9 x 24 mm U6593 1 52100127 Washer white galv 8 5 x 32 mm 166 1 52201003 Washer cr...

Page 12: ...251J333 1 4W5 33K 1 81121057 RESISTOR C1R21 251J473 1 4W5 47K 5 81121058 RESISTOR C1R21 251J563 1 4W5 56K 1 81121063 RESISTOR C1R21 251J154 1 4W5 150K 3 81121064 RESISTOR C1R21 251J184 1 4W5 180K 2 81...

Page 13: ...RANSISTOR C2T12 101B450 BC560 C 5 82212017 TRANSISTOR C2T12 600B150 2N5401 5 82212018 TRANSISTOR C2T12 600A160 2N5551 5 82212019 TRANSISTOR C2T12 101C450 BC550 7 82222007 TRANSISTOR C2T22 302A800 BD17...

Page 14: ...10K 3 81121051 RESISITOR C1R21 251J153 1 4W5 15K 1 81121061 RESISITOR C1R21 251J104 1 4W5 100K 1 81121073 RESISITOR C1R21 251J105 1 4W5 1M 4 81132089 RESISITOR METAL C1R32 501G473 1 2W2 47K 4 8131107...

Page 15: ...1167 2 333950530 SERIAL NUMBER LABEL50487 3 33955180 RCF TRADEMARK BADGE 32180 1 33960330 INSTRUCTION GUIDE MOD 1630 2 1 33994980 SHIPPING BOX 31916 1 23102900 RCF ART300A Amplifier Assembly These par...

Page 16: ...5532 6 5 7 IC5A NE5532 2 3 1 R138 150K 15V 15V 15V 15V 15V 15V 4 8 4 8 4 8 R111 10K 1 R116 1K C49 100n IC9A NE5532 2 3 1 IC9B NE5532 6 5 7 IC10B NE5532 6 5 7 IC10A NE5532 2 3 1 IC4B NE5532 R133 10K 15...

Page 17: ...N5401 3 3 1 R70 1K R81 0 33 5W Q26 BC560 2 2 R79 2K2 1 2W 1 3 3 1 C33 47n C29 100n R86 10 5W CF3 CF4 L2 4uH R84 10 3W F4 2 5AT 40V OUT HIGH R66 100 D32 R71 22 Q22 TIP36C 1 Q18 2N5401 2 3 R75 2R7 1 2W...

Page 18: ...007 D18 D19 R38 180K 180K C14 100n R33 4R7 5W R46 4R7 5W CF2 CF1 L1 4uH 80V 40V OUT LOW R27 100 R28 47 D2 1N4007 C13 1n D15 BAV21 D17 R32 150K C18 680p D20 MR854 Q11 IRFP9140 Q10 2SA1302 C15 22u 16V R...

Page 19: ...4 CF15 FOR 115VAC POWER SUPPLY CHANGE FUSE TO T 6 3A F T6 3A SW 115V 1 3 2 CF5 CF6 CF7 CF8 CF9 CF16 CF17 TR SW C22 220n C C 0V 60Vac 30Vac 30Vac 60Vac CF14 CF13 CF12 CF11 CF10 CF15 CF16 CF17 TR 1 2 5...

Page 20: ...ART300A Service Manual 20 ART 300A Main Circuit Board 31851...

Page 21: ...ART300A Service Manual 21 ART 300A Input Board...

Page 22: ...00A Service Manual 22 XLR INPUT XLR OUTPUT VOICE SWITCH MUSIC SWITCH LIMITER LED OPERATE LED VOLUME POT LINE MICRO SWITCH Traces and pads looking from the top through the board ART 300A Input Board 31...

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