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SCHILLER AT-2 6-Channel ECG Unit
SERVICE HANDBOOK Issue 2.1 November 1998
What's in this book
THE SERVICE PHILOSOPHY FOR ALL SCHILLER UNITS IS FAULT FINDING TO
MODULE LEVEL ONLY. THE PURPOSE OF THIS BOOK IS TO PROVIDE ALL THE
INFORMATION NECESSARY TO ENABLE THE SERVICE ENGINEER TO EFFICIENTLY
LOCATE AND REPLACE A FAULTY MODULE. THIS BOOK ASSUMES NO DETAILED
KNOWLEDGE OF THE AT-2 BUT DOES REQUIRE THAT THE SERVICE ENGINEER IS
FAMILIAR WITH STANDARD WORKSHOP PRACTICES.
The book is divided into the following chapters:
Chapter 1 - Operating Elements
The purpose of this chapter is to provide an easy reference for all the main operator functions and
to give a basic introduction to the AT-2. This chapter gives details of the operator controls with
the operation and function of each key briefly explained. The information in this chapter provides
a background to the operating functions only. Complete operating information is provided in the
SCHILLER AT-2 User Guide.
Chapter 2 - Functional Overview
This chapter provides a functional overview of the AT-2. The description is supported by functional
block diagrams.
Chapter 3 - Fault Diagnosis
This chapter provides a guide to locate a fault to module level. The diagnostics are presented in
a logical sequence of fault finding algorithms and procedures. Illustrations are provided to support
the text where needed.
Chapter 4 - Module Removal and Replacement
This chapter gives an overview of the physical construction of the AT-2 with the main physical
attributes of the unit briefly described. The physical description is supported by illustrations
showing the internal location of all modules. Removal and replacement instructions for all
removable modules are also provided in this chapter. Each procedure is autonomous with details
of tools, jumper settings, adjustments and settings or special requirements that are required before
and after replacement. Functional checks that must be carried out after replacing a module are
also provided.
Chapter 5 - Adjustments
This chapter provides all adjustments and settings. Also detailed in this chapter are basic functional
test procedures that can be performed to check the functioning of the unit.
Chapter 6 - Spare Parts
This chapter provides the part numbers and reordering information for all replaceable modules.
Also included in this chapter are details of any special test equipment or special tools required for
adjustment or fault finding procedures.
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