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Schiller AT-1 Service Manual

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SCHILLER
AT-1 3-Channel
ECG
Unit
SERVICE
HANDBOOK
Issue
3
September
1999
AT-1
3-Channel
ECG
Unit
Service
Handbook
SCHILLER
AG
Altgasse 68
CH-6340
Baar, Switzerland
Phone:
+4141766 42 42
Fax:
~414176108
80
Home
page:
http://www.schiller-ag.ch
September
1999 Article Number:
2.
530
033
i
Operator Manual
Cardio Menu

Table of Contents

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Schiller AT-1 Specifications

General IconGeneral
TypeElectrocardiograph
DisplayLCD
RecordingThermal printer
Weight2.9 kg
Power SupplyAC or battery
Channels3

Summary

Declaration of Conformity

Where to Obtain Service

America

Contact information for service in North America.

Asia Pacific

Contact information for service in Asia Pacific region.

Austria

Contact information for service in Austria.

Canada

Contact information for service in Canada.

France

Contact information for service in France.

Germany

Contact information for service in Germany.

India

Contact information for service in India.

Italy

Contact information for service in Italy.

Switzerland

Contact information for service in Switzerland.

All Other Countries

Contact information for service globally.

Warranty

Disclaimer

Legal statement regarding manual accuracy and liability.

Trademarks

Information on registered trademarks of the product.

Copyright Notice

Legal notice regarding reproduction rights of the manual.

Terms of Warranty

Details of the product's warranty period and conditions.

Chapter 1 Operating Elements

Introduction

Overview of the AT-1 unit and its features.

Operating Modes

Description of manual and automatic recording modes.

Function Keys

Explanation of the purpose of each key on the unit.

Indicators

Description of the unit's status indicator lamps.

Settings

How to configure various operational parameters.

Language

Procedure for selecting the display language.

Filters

Details on applying baseline, mains, and myogram filters.

Lead Sequence

Options for standard and Cabrera lead sequences.

Printout

Configuration options for printout formats.

Paper

Information on paper types and roll/folded options.

Settings for Automatic Mode

Configuration options specific to auto mode.

Average Cycles

How to set average cycle display in auto mode.

Measurements

Options for displaying measurement results.

Selecting Rhythm Leads

Procedures for selecting rhythm leads.

Printout of all Settings

How to print all current unit settings.

Default Settings

How to restore factory default settings.

Service Printout

Obtaining diagnostic printouts of unit status.

Installing Software Options

Procedure for upgrading unit software.

Chapter 2 Functional Overview

Introduction

Purpose of the chapter to overview AT-1 electronics.

Control and Power Supply board MK II - 1

Detailed functional description of the power supply board.

ECG Amplifier MK II-2

Functional description of the ECG amplifier circuit.

Chapter 3 Fault Diagnosis and Check Procedures

Introduction

Overview of fault-finding philosophy and procedures.

Fault Diagnosis Chart

A chart to guide fault identification based on symptoms.

General Check Procedures

Steps for performing a basic functional check of the unit.

Printer Check

Procedure to test the functionality of the printer.

Chapter 4 Module Removal and Replacement

Introduction

Overview of procedures for module removal and replacement.

Warnings and Cautions

Safety precautions for handling components and the unit.

Physical Overview

Description of the unit's physical construction.

Test Equipment, Tools, and Accessories

List of necessary tools for maintenance.

Opening the Case

Step-by-step guide to open the unit's casing.

Exploded View

Diagram showing the internal components of the unit.

ECG Interface Board MK 11- 2

Procedure to remove and replace the ECG interface board.

Control and Power Supply Board MK 11-1

Procedure to remove and replace the power supply board.

Battery Pack

Procedure to remove and replace the battery pack.

Paper Tray Assembly and Thermal Printer

Procedure to remove/replace paper tray and printer.

Keyboard

Information on keyboard assembly replacement.

Chapter 5 Adjustments

Introduction

Overview of adjustment procedures and requirements.

Warnings, Cautions and Conditions

Safety and environmental conditions for adjustments.

Test Equipment

List of proprietary and dedicated test equipment required.

Test Setup

Diagram showing the recommended test setup.

Control Board MK 11-1 Component Location

Diagram showing component locations on the control board.

Battery Charge Voltage

Procedure to check and adjust battery charge voltage.

ECG Amplifier +2V, -2V and PWM Ramp Time Adjustment

Procedure for adjusting amplifier reference voltages.

ECG Amplifier reference voltage

Procedure to measure and adjust amplifier reference voltages.

Service Printout

Details on obtaining and interpreting service printouts.

Software and Settings

Information on unit software version and settings.

Chapter 6 Spare Parts

Ordering Information

How to order spare parts and contact SCHILLER AG.

Spare Parts

List of available spare parts with their part numbers.

Chapter 7 Technical Data

Technical Data

Specifications for dimensions, weight, power, and paper.

Available Configurations

Description of different software versions available.

Chapter 8 Glossary

Introduction

Purpose of the glossary section.

Acronyms

Glossary of abbreviations used in the manual.

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