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Schiller AT-2 Service Manual

Schiller AT-2
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SCHILLER AT-2 6-Channel ECG Unit
SERVICE HANDBOOK Issue 2.1 November 1998
AT-2
6-Channel
ECG unit
Service Handbook
SCHILLER AG
Altgasse 68
CH-6340 Baar, Switzerland
Phone: + 41 41 766 42 42
Fax: + 41 41 761 08 80
Home page: http://www.schiller-ag.ch/
June 1998 Article Number: 2.540 010
Operator Manual
Cardio Menu

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Schiller AT-2 Specifications

General IconGeneral
BrandSchiller
ModelAT-2
CategoryMedical Equipment
LanguageEnglish

Summary

Declaration of Conformity

Where to Obtain Service

Warranty

Disclaimer

Information about the reliability and correctness of the manual's content.

Trademarks

Lists registered trademarks of SCHILLER AG and other owners.

Copyright Notice

States copyright ownership and reproduction restrictions.

Terms of Warranty

Details the warranty period and conditions for the SCHILLER AT-2.

Safety Notices

Operating Elements

Introduction

Provides an overview of the AT-2 ECG recorder and its features.

Location and Power

Describes the unit's location requirements and power supply details.

The Keyboard

Details the function and layout of the AT-2 control keyboard.

AT-2 Short Form Operating Instructions

Concise step-by-step instructions for operating the AT-2.

Modes of Operation

Explains the Automatic and Manual recording modes of the AT-2.

Automatic Mode

Details how to program and use the automatic ECG recording formats.

Manual Mode

Explains how to select leads, chart speed, and filters for manual recording.

Settings

Describes how to set various parameters like language, filters, and time/date.

Care and Maintenance

Outlines procedures for unit checks, casing, cable, and print head cleaning.

Replacing the Recording Paper

Step-by-step guide for replacing the recording paper roll.

Thermal Paper Handling

Provides guidance on proper handling and storage of thermal paper.

Functional Overview

Introduction

Introduces the chapter's aim to explain AT-2 electronics and identify faulty modules.

Main Board MK 12-1

Details the functionality of the main circuit board, including power supply and CPU circuits.

Fault Diagnosis

Introduction

Explains the philosophy of fault finding and the use of diagnostic procedures.

Fault Diagnosis Chart

Provides a flowchart for troubleshooting common unit faults.

General Check Procedures

Outlines steps for a general confidence check of the unit's functionality.

Printer Check

Describes procedures to check the printer's operation and print quality.

Module Removal and Replacement

Introduction

Provides an overview of module removal/replacement procedures and necessary precautions.

Warnings and Cautions

Lists critical warnings and cautions for handling components and the unit safely.

Physical Overview

Describes the physical construction of the AT-2 unit and its components.

Exploded View Base Assembly and Printer

Illustrates the exploded view of the base assembly and printer components.

Exploded View Paper Feed

Shows an exploded view of the paper feed mechanism.

Opening the Case

Details the prerequisites, tools, and steps for opening the unit's case.

Top Assembly Replacement

Provides instructions for removing and replacing the top assembly.

Printer Tray Assembly and Thermal Printer

Details the removal and replacement of the printer tray and thermal printer.

Main Board MK 12-1

Outlines the procedure for removing and replacing the main board.

Battery Pack

Describes the procedure for removing and replacing the battery pack.

Keyboard

Information on the keyboard as a complete assembly and its part number.

Adjustments

Introduction

Introduces the chapter on procedures for checking and adjusting service settings.

Warnings, Cautions and Conditions

Lists important safety warnings, cautions, and operating conditions for adjustments.

Test Equipment

Lists the proprietary and dedicated test equipment required for adjustments.

Main Board MK 12-1 Adjustment Locations

Diagram showing adjustment locations (VR1, VR2, VR3) on the main board.

Battery Charge Voltage

Details the procedure for adjusting and checking the battery charge voltage.

Paper mark Detector Check

Describes how to check and adjust the paper mark Schmitt trigger sensitivity.

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

Procedures for adjusting ECG amplifier reference voltages and PWM ramp time.

Service Printout

Explains how to obtain a service printout and interpret ECG reference voltages.

Software Options / Updates

Information on available software options and how to upgrade the unit.

Spare Parts

Ordering Information

Provides contact details and information required for ordering spare parts.

Spare Parts

Lists available spare parts with their descriptions and part numbers.

Technical Data

Technical Data

Lists comprehensive technical specifications of the AT-2 ECG Unit.

Available Configurations

Describes the different available configurations of the AT-2 unit.

Glossary

Introduction

Explains the purpose of the glossary and its scope.

Acronyms

Provides definitions for important signals and acronyms used in the manual.

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