Technical Support Group; Factory Service; Parts Department- Page 4

Power Base-1 & 460CSL Amplifier Service Manual

4

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

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 includes several sections. These
sections include Parts Ordering, Specifications, Volt-
age Conversion, Circuit Theory, Factory Test Proce-
dures, Mechanical Parts Lists, and Module Parts Lists.
Schematics are attached. Note that component parts
with circuit board comprise a complete module. Mod-
ule part numbers are always associated with a spe-
cific circuit board, although an unpopulated 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).

Introduction