Introduction; Specifications; Voltage Conversion - Crown Macro-Tech MA-2400 Service Manual

This manual contains service information on Crown
power amplifiers. It is designed to be used in conjunc-
tion with the applicable Owner's Manual. However,
some important information is duplicated in this Ser-
vice Manual in case the Owner's Manual is not readily
available.
NOTE: THE INFORMATION IN THIS MANUAL IS INTENDED
FOR USE BY AN EXPERIENCED TECHNICIAN ONLY!
Scope
This Service Manual in intended to apply to all versions
of the MA-2400 amplifier including the Amcron MA-
2401. The Parts Listings include parts specific for the
US version and the European version (MA-2400E13).
For parts specific only to other versions contact the
Crown Technical Support Group for help in finding
part numbers.
This Service Manual includes several sections. These
sections include Parts Information, Specifications,
Voltage Conversion, Circuit Theory, Electrical Test
Procedures, Non-Module Parts Lists, and Module
Parts Lists. Schematics are attached. Note that com-
ponent parts with circuit board comprise a complete
module. Module part numbers are always associated
with a specific circuit board, although an unpopulated
4
Macro-Tech 2400 Amplifier Service Manual

Introduction

Crown
Technical Support Group
Factory Service
Parts Department
Mailing Address:
PO Box 1000
Elkhart, IN USA 46515-1000
Shipping Address:
57620 C.R. 105
Elkhart, IN USA 46517
Phone: (219) 294-8200
Toll Free: (800) 342-6939
FAX: (219) 294-8301
circuit board may be built up with different parts to
create different modules. Note that Crown does not
sell blank (unpopulated) circuit boards.
Each of the compact audio power amplifiers are
designed for professional or commercial use. Provid-
ing high power amplification from 20Hz to 20KHz with
minimum distortion, they feature balanced inputs with
bridged and parallel monophonic capability. Specific
features vary depending on model family.
Warranty
Each Owner's Manual contains basic policies as re-
lated to the customer. In addition it should be stated
that this service documentation is meant to be used
only by properly trained service personnel. Because
most Crown products carry a 3 Year Full Warranty
(including round trip shipping within the United States),
all warranty service should be referred to the Crown
Factory or Authorized Warranty Service Center. See
the applicable Owner's Manual for warranty details. To
find the location of the nearest Authorized Service
Center or obtain instructions for receiving Crown Fac-
tory Service please contact the Crown Technical Sup-
port Group (within North America) or your Crown/
Amcron Importer (outside North America).