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Schiller CARDIOVIT AT-1 Service Manual

Schiller CARDIOVIT AT-1
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SCHILLER AT-1 / AT-1smartprint ECG Unit
SERVICE HANDBOOK Issue b June 2001
Art.No. 2.540022
AT-1 /
AT-1smartprint
ECG unit
Service Handbook
SCHILLER AG
Altgasse 68
CH-6341 Baar, Switzerland
Phone: + 41 41 766 42 42
Fax: + 41 41 761 08 80
Home page: http://www.schiller.ch/
June 2001 Article Number: 2.540022

Table of Contents

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Schiller CARDIOVIT AT-1 Specifications

General IconGeneral
BrandSchiller
ModelCARDIOVIT AT-1
CategoryMedical Equipment
LanguageEnglish

Summary

Associated Documents

Where to Obtain Service

Warranty

Terms of Warranty

Details the warranty terms for the AT-1 / AT-1smartprint, including exclusions and liabilities.

Physicians Responsibility

Outlines the responsibilities of physicians regarding the use and interpretation of the ECG unit.

Safety Notices

Notes, Cautions, and Warnings

Provides essential safety information, cautions, and warnings for operating and maintaining the unit.

Chapter 1 Operating Elements

Introduction to Operating Elements

Provides an overview of the AT-1 / AT-1smartprint, its features, and basic operation.

Location & Power

Details the recommended operating environment and power supply options for the ECG unit.

The Keyboard

Explains the layout and function of each key on the ECG unit's keyboard.

Short Form Operating Instructions

Provides quick, step-by-step instructions for common operating tasks.

Modes of Operation

Describes the Automatic and Manual modes for ECG recording and their settings.

Settings

Explains how to program and configure various parameters of the ECG unit.

Chapter 2 Functional Overview

Introduction to Functional Overview

Provides a functional overview of the AT-1 / AT-1smartprint electronics.

Main Board MK 11-10 Description

Details the Power Supply, CPU, memory, and thermal printhead controller on the main board.

Main Board MK 11-10 Functions

Covers key board functions: paper mark, reset, motor control, power supplies, ECG signal, and noise damping.

Chapter 3 Fault Diagnosis

Introduction to Fault Diagnosis

Explains procedures for identifying faulty modules and minimizing test equipment usage.

Fault Diagnosis Chart

Provides a flowchart for diagnosing common faults and identifying potential faulty modules.

General Functional Check Procedure

Outlines basic functional checks to verify unit operation after component replacement.

Internal Printer Check

Details how to perform a built-in printer test to check pixel operation and print quality.

External Printer Problems

Troubleshooting guide for issues related to the external inkjet printer connection and output.

Chapter 4 Module Removal and Replacement

Introduction to Module Procedures

Provides an overview of procedures to remove and replace modules, including prerequisites and tools.

Maintenance Warnings and Cautions

Lists essential warnings and cautions to observe before and during module maintenance procedures.

Unit Physical Overview and Test Equipment

Describes the unit's construction, components, and the test equipment required for maintenance.

Opening the Unit Case

Details the prerequisites, tools, and step-by-step procedure for safely opening the unit's case.

Top Housing Removal Procedure

Step-by-step instructions for removing the top housing assembly from the unit.

Top Housing Replacement Procedure

Step-by-step instructions for correctly replacing the top housing assembly.

ECG Interface Board MK 11-2 Replacement

Instructions for removal and replacement of the ECG Interface Board MK 11-2.

Printer Tray and Thermal Printer Replacement

Procedures for removing and replacing the printer tray and thermal printer assembly.

Thermal Printer Removal Procedure

Step-by-step instructions for removing the thermal printer unit.

Printer Motor Removal and Replacement

Instructions for removing and replacing the printer motor.

Control and Power Supply Board MK 11-10 Replacement

Procedures for removing and replacing the Control and Power Supply Board MK 11-10.

Battery Pack Removal and Replacement

Details the removal and replacement of the internal battery pack.

Post Battery Replacement Settings

Instructions for reprogramming static settings, date, and time after battery replacement.

Chapter 5 Adjustments

Introduction to Service Adjustments

Provides procedures for checking and adjusting service settings and component voltages.

Adjustment Precautions and Conditions

Lists safety warnings, cautions, and environmental conditions for performing adjustments.

Test Equipment for Adjustments

Lists the proprietary and dedicated test equipment required for fault finding and adjustments.

Battery Charge Voltage Adjustment Procedure

Procedure for checking and adjusting the battery charge voltage (VR4).

ECG Amplifier Reference Voltage Adjustment Procedure

Procedure for adjusting ECG amplifier reference voltage and PWM ramp (VR2, VR3).

Chapter 6 Spare Parts

Ordering Information for Spare Parts

Provides contact details and information required for ordering spare parts and accessories.

Spare Parts Catalog

Lists part descriptions and corresponding part numbers for replaceable components.

Chapter 7 Technical Data

Technical Data Overview

Presents detailed technical specifications for dimensions, power, performance, and environmental conditions.

Technical Data: Filters and Input Specs

Details Myogram filter, Line Frequency Filter, patient input, leakage current, and safety standards.

Technical Data: Environmental and Configuration

Specifies operating conditions, available unit configurations, and external printer details.

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