Mackie SR1530 Manuel utilisateur

SR1530

Active Speaker

SERVICE MANUAL

2000 MACKIE DESIGNS, INC.

Go To Bulletins

SERVICE ON THIS EQUIPMENT IS TO BE PERFORMED BY

EXPERIENCED REPAIR TECHNICIANS ONLY

CONTENTS

Introduction..................................................................... 3

Overview.......................................................................... 4

Specifications................................................................... 5

Test procedure................................................................. 6

Safety test ........................................................................ 8

Parts................................................................................... 9

Service bulletins ............................................................... 19

Fold-out Sections

Schematics and PCB layouts

Amplifier board .......................................................... Amp-1

Filter board................................................................. Filter-1

Wiring diagrams ......................................................... Wiring-1

INTRODUCTION

This manual contains basic service information. It is essential that you have a copy of the

user’s manual as this contains the complete operating instructions.

SERVICE TECHNICAL ASSISTANCE

MackieDesigns, Service TechnicalAssistance, isavailable 8AM- 5PMPST, Mondaythrough

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.

SERVICE ON THIS EQUIPMENT IS TO BE PERFORMED BY

EXPERIENCED REPAIR TECHNICIANS ONLY

Click on any item to open that page

ALL BOARDS

The SR1530 is a high output, horn loaded, 3-way, wide dispersion, active sound

reinforcement system. It features a one-piece 90º x 40º horn, which includes both the mid

and high frequency sections in a proprietary “Optimal Wavefront” design. Unlike typical

mid/high horn designs, the high frequency section is positioned to fire down into the six-

inch mid-range’s dispersion pattern. This creates a focused, single wave front with

excellentphase and powerresponse characteristics.

The mid-range transducer operates between 700Hz and 3000Hz, eliminating the

placement of a crossover point in the middle of critical voice frequencies. Frequencies

above 3000Hz are reproduced by a 1-inch exit compression driver. The low frequencies

are produced through a high output 15-inch woofer.

The SR1530 accepts a line-level signal via a female XLR input jack. A male XLR Thru jack is

provided for daisy-chaining the signal to additional SR1530 cabinets.

Two built-in power amplifiers provide 100 watts each for the mid-frequency and high-

frequencydrivers. Thelow-frequencydriver ispowered bya high-efficiency,high-current

Class G topology amplifier providing 300 watts of power. The amplifier modules sit on a

large heatsink that eliminates the need for fans, dramatically extending life expectancy,

andeliminatingmaintenance cycles.

The cabinet is constructed using both 18mm multi-layered plywood and pressure injected

structural resin. Two carrying handles are integrated into each side for easy loading and

transport.

OVERVIEW

SPECIFICATIONS

System Specifications

FrequencyRange 40Hz–20kHz

Frequency Response (–3 dB)

45Hz–18kHz

Horizonal Coverage Angle (–6 dB)

90º averaged 2kHz to 10kHz

Vertical Coverage Angle (–6 dB)

40º averaged 2kHz to 10kHz

Directivity Factor; DI (Q)10.77 (11.95)

averaged 2kHz to 10kHz

Maximum SPL @ 1m 123 dB

Peak Output @ 1m 126 dB

Crossover Points 700Hz, 3000Hz

DynamicRange > 100 dB

Phase Response ±40º from 500Hz to

10kHz

Input Type Balanced

differential

Input Impedance 50K ohms

Input Protection Monitoring and

limiting of

continuous rms

output of the

amplifiers

Thermal Protection Input stage

muting,

auto-reset

Transducer Specifications

Low-Frequency Transducer

Diameter 15” (381mm)

Voice Coil Diameter 2.5” (63mm)

Power Handling 250 watts rms

Mid-Frequency Transducer

Diameter 6” (152mm)

Voice Coil Diameter 2” (50mm)

Power Handling 60 watts rms

High-Frequency Transducer

Diaphragm Diameter 1” (25mm)

Voice Coil Diameter 1” (25mm)

Power Handling 25 watts rms

Diaphragm Material Mylar

Power Amplifiers

Low-Frequency Power Amplifier

Burst Capability 300 watts

Rated THD < 0.05%

Design Class G, High

Efficiency/High

Current

Mid and High-Frequency Power Amplifiers

Burst Capability 100 watts

Rated THD < 0.1%

Design: Integrated Module

Line Input Power

US 120V, 60Hz

Recommended Amperage Service

8 amps

Europe 230V, 50Hz

Recommended Amperage Service

5 amps

Physical Properties

Height 43.9” (1116mm)

Front Width 19.1” (484mm)

Rear Width 13.9”(352mm)

Depth 18.1” (460mm)

Weight 100 lbs. (45.5kg)

Enclosure 18mm thick multi-layered

plywood, top and bottom

high pressure resin injected

“caps”

Enclosure Geometry

Trapezoidal, 10º angle

sides

Mounting Methods

Floor mount

Disclaimer

Since we are always striving to make our

products better by incorporating new and

improved materials, components, and

manufacturing methods, we reserve the right

to change these specifications at any time

without notice.

“Mackie” and the “Running Man” figure are

trademarks or registered trademarks of Mackie

Designs Inc.

All other brand names mentioned are

trademarks or registered trademarks of their

respective holders, and are hereby

acknowledged.

Printed in Italy.

TEST EQUIPMENT

Audiogenerator/analyser

Oscilloscope

Voltmeter

2 load resistors 16 ohm, 200W

1 load resistor 8 ohm, 100W

Variac with voltage and current-draw meters

1 INSPECTION

1.1 Inspect all components, solder, wires, connectors, screws, heatsink screws. Make

sure all transistors and IC amps are secured correctly to the heatsink.

2 CONNECTIONS

2.1 Connect the two 16 ohm loads to the Low and High outputs (Low+ Low- and Hi+ Hi -).

2.2 Connect the 8 ohm load to the Mid outputs (Mid+ and Mid -).

2.3 Connect the audio generator’s output to the XLR input of the SR1530.

2.5 Initially connect the analyser and scope to the 16 ohm load on the Low Freq section.

2.6 Connect the variac to the AC connector of the SR1530.

2.7 Set the frequency to 200 Hz, at minimum output.

2.8 Turn on the SR1530 Power Switch

3 POWER UP

3.1 Slowly bring the Variac up to 115 Vac (230 Vac for European models).

3.2 Verify that the green led is illuminated.

3.3 Verify an ac current draw of: 340 mA ± 10 % (115 Vac)

170 mA ± 10 % (230 Vac).

3.4 Verify with a DC voltmeter the values of the two DC rails (± 25 Vdc; ± 50 Vdc)

with a tolerance of approx 1.5 Vdc for the 25V rail and approx 2 Vdc for the

50V rail.

Amplifier Test Procedure

NOTE: The amplifiers are

operated in mono, so the negative

output terminals must not be

grounded by your test equipment.

Use an oscilloscope in Differential

mode.

4 VERIFICATION OF THE LOW FREQUENCY SECTION.

4.1 Initially set the input signal to 30 mV at 100Hz.

4.2 Increase the input signal slowly until the limiter starts to stabilize the output to

35V (approximately 76.7W) with an input of approx 250 mV.

4.3 Lower the input signal until the limiter is not operating. The input signal should be approx

220\230mV) and the output signal should be 32V (approx 63.5 W into the 16 ohm load).

4.4 Bypass the limiter temporarily by shorting the led section of the optocoupler, and

increase the input signal until the output signal is clipping. Verify this occurs at approx 53

volts (180 W into the 16 ohm load). The input signal should be approx 380mV.

4.5 Remove the short circuit and verify that the limiter kicks in after 7 or 8 seconds.

5 VERIFICATION OF THE HIGH FREQUENCY SECTION.

5.1 Connect the analyser and scope to the 16 ohm load on the High Freq section.

5.2 Initially set the input signal to 100 mV at 10 kHz.

5.3 Increase the input signal slowly until the limiter starts to stabilize the output to

10.1V (approx 6.4W into 16 ohms) with an input of approx 240 mV.

5.4 Lower the input signal until the limiter is not operating. The input signal should be approx

190\200mV) and the output signal should be 7.9V (approx 3.9 W into 16 ohms).

5.5 Bypass the limiter temporarily by shorting the led section of the optocoupler, and

increase the input signal until the output signal is clipping. Verify this occurs at

approx 19.2 volts (23 W into 16 ohms). The input signal should be approx 441 mV.

5.6 Remove the short circuit and verify that the limiter kicks in after 6 to 7 seconds.

6 VERIFICATION OF THE MID FREQUENCY SECTION.

6.1 Connect the analyser and scope to the 8 ohm load on the Mid Freq section.

6.2 Initially set the input signal to 120 mV at 1 kHz.

6.3 Increase the input signal slowly until the limiter starts to stabilizes the output to

14.6V (approx 26.7W into 8 ohms) with an input of approx. 560 mV.

6.4 Lower the input signal until the limiter is not operating. The input signal should be approx

490\500mV) and the output signal should be 12.9V (approx 20.9 W into 8 ohms).

6.5 Bypass the limiter temporarily by shorting the led section of the optocoupler, and

increase the input signal until the output signal is clipping. Verify this occurs at

approx 24 volts (72 W into 16 ohms). The input signal should be approx 940 mV.

6.6 Remove the short circuit and verify that the limiter kicks in after 5 to 6 seconds.

You must perform the following leakage test before returning the unit to your customer.

Take every safety precaution to protect yourself while doing this test.

1. Make a small loading RC circuit as shown in the diagram below, and connect the 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

leakagecurrent).

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 unit

before returning it to your customer.

Safety test

SR1530 PARTS LIST

WARNING: IN THE PAGES WHICH FOLLOW, PARTS WHICH ARE

MARKED WITH THE WARNING TRIANGLE SHOULD ONLY BE REPLACED

WITH EXACT REPLACEMENT PARTS. THIS IS REQUIRED TO MAINTAIN

PRODUCT SAFETY.

PART# DESCRIPTION PAGE

13110050 SR1530 ASSEMBLY 10

23103130 AMPLIFIER SUBASSEMBLY 11

23103130 AMPLIFIER SUBASSEMBLY (dual volt) 11

23103130 AMPLIFIER SUBASSEMBLY (115V) 11

23103810 AMPLIFIER SUBASSEMBLY (100V) 12

23103710 AMPLIFIER SUBASSEMBLY (230V) 13

23103820 AMPLIFIER SUBASSEMBLY (240V) 13

3020490 AMPLIFIER PCB ASSEMBLY 14

23030110 FILTER PCB ASSEMBLY 15

EARLY AMPLIFIER ASSEMBLY 16

LATEST AMPLIFIER COMMON PARTS 18

RECONEKIT 18

13110050 SR 1530 ASSEMBLY 115V

PART# DESCRIPTION QTY COMMENTS

SC034351 WIRING DIAGRAM REVD 1

21110110 LOUDSPEAKER L15-64-MAS 1530 REVA 1 WOOFER

21110120 MR 160-MAS 1530 REVA 1 MIDRANGE

23020480 LED BOARD ASSEMBLY 1

23030110 FILTER ASSEMBLY 1 SEE PAGE 13

23103130 AMPLIFIER SUBASSEMBLY 1 SEE PAGE 11

23103150 LOUDSPEAKER CABLE ASSEMBLY 1

23103490 LED CABLE ASSEMBLY 1

25110160 TWEETER N 270-MAS 1530 REVA 1 TWEETER

33090410 CABINET 34231 1

33090460 HANDLE HOUSING 34278 2

33161060 WOOFER GASKET 23630 1

33180120 TOP VENTILATION PLATE 34332 1 FITS ON TOP OF AMPLIFIER

33180360 LOWER VENTILATION PLATE 35271 1 FITS ON BOTTOM OF AMPLIFIER

33221510 FRONT GRILL 35723 1

33890150 VIBRATION-DAMPING MATERIAL 23418 1 MOUNTS INSIDE, NEAR THE HOLE

FOR THE STAND

33890190 CABINET FEET 34344 4

33900120 SIDE HANDLE BAR 33939 2 HANDLE BAR

33900360 CIRCULAR PLUGS 34360 2 TOP/BOTTOM PLUGS WITH LOGO

33900470 REFLEX PORT 35255 2 CIRCULAR BASS REFLEX PORTS

33910660 ABSORBENT FOAM 35724 1

33910670 ABSORBENT FOAM 35739 2

33920590 PLASTIC SIDE HANDLE GRIP 34280 2 HANDLE GRIP

33920650 TOP HANDLE 34335REV B 2 TOP HANDLE

33951530 MACKIE LABEL 34342 1

33951540 MACKIE ACTIVE LOGO 34343 1

33951980 RUNNING MAN LOGO 34844 1

33990990 PACKAGING BOX 34357 1

33991000 INTERNAL PACKAGING 34358 1

33991010 INTERNAL PACKAGING 34367 4

33994410 INTERNAL PACKAGING 35551 1

33995370 ANGLE 1800 33302

33995500 PACKAGECOVER35706 1

33995510 PALLET 35705 1 WOODEN PALLET PACKAGING

43900580 RUBBER “U” PROFILE 200S 1

43900600 GROMMET 34582 2

43900820 GASKET 32181 1

51150351 SCREW V.TC+M4 X30ZNN U7687 8

51170415 SCREW V.TSC+M5 X10ZNN U7689 8

51190230 SCREW V.TCEI M5 X20 ZNN U5931 10559 1/2 2

51240211 SCREW V.TC+AB 2,9X9,5ZNN U6954 12600 1/2 1

51310402 SCREW V.TC+SL 3,5X10 ZNN 1

51310523 SCREW V.TC+SL 4X20 ZNN 6175 1/2 16

51310545 SCREW V.TC+SL 4X40 ZNN 22

51510221 SCREW V.TC+AUTOP.DK3,5X19ZNC UNI 8118 4

51991009 SCREW V.TC+AUTOM. SW M4X10 ZNN U8112 4

51992013 SCREW V.T1/2T+SL 4X16 ZNN 34462 12

52100110 WASHER 4,3X 9ZNN U6592 6329 1/2 39

52100116 WASHER 5,3X10ZNC U6592 11618 1/2 2

52201004 WASHER 5 DIN6798 0239 2

54302001 LOCK WASHER 35059 2

83483019 POWER CORD-USA C3C83-012E003 1

83483013 POWERCORDEU 1

83483021 POWERCORDU.K. 1

Components noted with this symbol shall be replaced only by the

component specified. This is required to maintain product safety.

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