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INTRODUCTION
This manual contains complete service information for the SR40•8 and SR56•8 mixing
consoles and power supply. Operating instructions will be touched on briefly. For
complete operating instructions refer to the owner’s manual. For simplicity, this manual
will refer to both products as the SR40•8.
The SR40•8 is a large format mixing console designed for professional sound
reinforcement and recording. It features 40 input channels, 8 sub groups, 12x4 matrix,
RS232 / MIDI compatible microprocessor controlled muting, Clear-Com
interface, and
more. The SR40•8 incorporates the latest technologies to provide sonic quality, price/
performance value, and legendary Mackie reliability.
To service the SR40•8, technicians should be familiar with op-amp based and discrete
analog circuitry, digital troubleshooting, and the operation / application of mixing
consoles. Presentation of this manual does not constitute endorsement of qualifications
by Mackie Designs.
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.
! SMD !
The SR40•8 / SR56•8 make extensive
use of surface mount components.
Servicing technicians should have the
tools and experience to perform
surface mount rework.
! ESD !
The SR40•8 / SR56•8 contain
components that may be damaged
by electrostatic discharge. ESD
precautions should be taken when
servicing.
SERVICE ON THE SR40•8 / SR56•8 IS
TO BE PERFORMED BY EXPERIENCED
TECHNICIANS ONLY!
