MAC 1200 and 1200 ST Service Manual sw ver 6.2 Rev D

NOTE: The information in this manual only applies to MAC 1200 resting ECG analysis system with the 2018357-003 or 2013503-003 board and software v6.2. It does not apply to earlier software versions. Due to continuing product innovation, specifications in this manual are subject to change without notice.

CAUTION Software compatibility issue. Attempting to download: 

v6.2 software or later into -002 boards (PN 2018357-001, 2018357-002, 2013503-001 or 38803267) or



v6.11 software or earlier into -003 boards (PN 2018357-003 or 2013503-003)

will render the MAC 1200 unit inoperable.

MAC and MUSE owned by GE Medical Systems Information Technologies, Inc., a General Electric company, going to market as GE Healthcare. All other marks are owned by their respective owners. © 2010, 2014 General Electric Company. All rights reserved.

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Compliance

Compliance The country of manufacture can be found on the equipment labeling. The product complies with the requirements of standard EN 60601-1-2 “Electromagnetic Compatibility - Medical Electrical Equipment”. The safety and effectiveness of this device has been verified against previously distributed devices. Although all standards applicable to presently marketed devices may not be appropriate for prior devices (i.e. electromagnetic compatibility standards), this device will not impair the safe and effective use of those previously distributed devices. See user’s information.

Exceptions The MAC 1200 resting ECG analysis system EMC: Immunity Performance Users should be aware of known RF sources, such as radio or TV stations and hand-held or mobile two-way radios, and consider them when installing a medical device or system. Be aware that adding accessories or components, or modifying the medical device or system may degrade the EMI performance. Consult with qualified personnel regarding changes to the system configuration.

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Contents

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The Basics... 1 About This Manual... 3 Manual Purpose... 3 Intended Audience... 3 Definitions... 3 Illustrations and Names... 4 Revision History... 4 Basic Information... 5 Variants of the MAC 1200 resting ECG analysis system... 6 Hardware Functional Blocks... 6 Block Circuit Diagram of Entire Instrument... 7 Mechanical Components... 8

2

Functional Description... 1 Basic Information... 3 Switching Power Supply... 4 PCB NC Battery Charge... 5 Charging Circuit for the NC Battery... 5 Battery-Dependent Device Behavior... 6 PCB Control CS_CI... 7 Generation of Internal Power Supplies... 7 Switch On/Off Circuit... 8 ECG Recording and Front-End Processing... 9 Controller Core... 10 Real Time Clock... 11 Memory... 12 LCD Graphics Display Interface... 12 Modem Supply... 17 Internal Interfaces... 18 Mechanical Interfaces... 18 Electronic Interfaces... 18 Interfaces to Peripherals... 23

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Electronic Interfaces... 24 Limitations... 26

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System Test Function... 1 General Information... 3 Test Start... 4 Display Test... 5 Contrast Control... 5 Keyboard Test... 6 Motor Test... 7 Test Results... 8 Self-Test... 9 Error Codes... 9 Recording Test... 10 V24 Tests... 11 Sending and Receiving (1)... 11 Send Test String to Device (2)... 11 Send and Receive with Device (3)... 12 Time and Date... 13 Electrode Test... 14 Time Constant/Baseline Roll Filter... 15 Setting the Device Model... 16 Interpretation (International Device Models Only)... 18 Pace Enhance... 19 Serial Number... 20 Ergometer / Treadmills (JAPAN Device Model Only)... 21 ACI-TIPI (US Device Models Only)... 22 Pharma... 23 High Security... 23

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Repair Instructions... 1 Safety Instructions... 3 Replacing Components... 4 Opening the Device... 4

5

Troubleshooting... 1 Basic Information... 3

6

Adjustment Instructions... 1 Basic Information... 3

7

Service and Maintenance... 1 Technical Inspections/Preventative Maintenance... 3 Visual Check... 4 Test Functions... 4 Safety Analysis Tests... 8 Maintenance, Cleaning, and Disinfection... 11

8

Parts List... 1 Introduction... 3 Field Replaceable Units (FRUs)... 4 High Level Assemblies... 4

9

Specifications... 1 Basic Information... 3 Recording... 3 Printer Paper... 3 Paper Transport... 4 Membrane Keypad... 4 Display... 4

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Indicators (LEDs)... 4 Automatic Functions... 4 Detection of Pacer Pulses... 5 Heart Rate Indication... 5 Signal Inputs... 5 Data Interface... 6 Pin Assignment of Data Port... 6 Remote Start (Hardware)... 6 Signal Transmission... 7 ECG Calibration... 8 Automatic ECG Gain Adjustment... 8 Baseline... 8 Anti-Drift System (ADS) (Cubic Spline)... 8 ECG Storage... 8 Blocking... 9 Electrode Monitoring... 9 Text Input... 9 Copy Function... 9 Test... 9 Power Supply... 9 Mains Operation... 10 Battery Operation... 10 Operational Readiness... 10 Operating Position... 10 Environment... 11 Recorder Dimensions... 11 Weight... 11

10

Drawings... 1 Basic Information... 2 High Level Assembly, PN 101 168 01...38, Sheet 1... 3

11

Drawings... 3 High Level Assembly, PN 101 168 01...38, Sheet 2... 4 PCB Assembly Drawing, PN 2033914-027... 5 Schematic, PN 2033914-033, Sheet 1... 6 Schematic, PN 2033914-033, Sheet 2... 7 Schematic, PN 2033914-033, Sheet 3... 8 Schematic, PN 2033914-033, Sheet 4... 9

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Schematic, PN 2033914-033, Sheet 5... 10 Schematic, PN 2033914-033, Sheet 6... 11 Schematic, PN 2033914-033, Sheet 7... 12 Schematic, PN 2033914-033, Sheet 8... 13 Schematic, PN 2033914-033, Sheet 9... 14 Schematic, PN 2033914-033, Sheet 10... 15 Schematic, PN 2033914-033, Sheet 11... 16 Schematic, PN 2033914-033, Sheet 12... 17 Schematic, PN 2033914-033, Sheet 13... 18 Schematic, PN 2033914-033, Sheet 14... 19 Schematic, PN 2033914-033, Sheet 15... 20 Schematic, PN 2033914-033, Sheet 16... 21 Schematic, PN 2033914-033, Sheet 17... 22 Schematic, PN 2033914-033, Sheet 18... 23 Schematic, PN 2033914-033, Sheet 19... 24 Schematic, PN 2033914-033, Sheet 20... 25 PCB Battery Charge CS_CSI, PN 388 032 90, Sheet 1... 26 PCB Battery Charge CS_CSI, PN 388 032 90, Sheet 2... 27

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The Basics

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The Basics: About This Manual

About This Manual Manual Purpose This manual supplies technical information for service representative and technical personnel so they can maintain the equipment to the assembly level. Use it as a guide for maintenance and electrical repairs that are considered field repairable. Where necessary the manual identifies additional sources of relevant information and or technical assistance. See the operator manual for the instructions necessary to operate the equipment safely in accordance with its function and intended use. This manual addresses both MAC 1200/1200ST units (international units) and MAC 1200 units (USA units). Information that is specific to either unit is identified.

Intended Audience This manual is intended for the person who uses, maintains, or troubleshoots this equipment.

Definitions The following formats are used in this manual to highlight various web viewer features and functions.

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Black text

Indicates keys on the keyboard, text to be entered, or hardware items such as buttons or switches on the equipment.

Italicized text

Indicates software terms that identify menu items, buttons, or options in various windows.

Ctrl+Esc

Indicates a keyboard operation. A (+) sign between the names of two keys indicates that you must press and hold the first key while pressing the second key once. For example, “Press Ctrl+Esc” means to press and hold down the Ctrl key while pressing the Esc key.

<Space>

Indicates you must press the spacebar. When instructions are given for typing a precise text string with one or more spaces, the point where the spacebar must be pressed is indicated as: <Space>. The purpose of the < > brackets is to ensure you press the spacebar when required.

Enter

Indicates you must press the “Enter” or “Return” key on the keyboard. Do not type “enter”.

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The Basics: About This Manual

Illustrations and Names All illustrations in this manual are provided as examples only. They may not necessarily reflect your monitoring setup or data displayed on your monitor. In this manual, all names appearing in examples and illustrations are fictitious. The use of any real person’s name is purely coincidental.

Revision History This manual has a revision letter, located at the bottom of each page. This revision letter changes whenever the manual is updated. Revision A is the initial release of the document. Table 1. Revision History, PN 2012250-095 Revision

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Date

Comments

A

22 May 2007

Initial release of this manual.

B

31 August 2009

Updated schematics in Chapter 10.

C

14 November 2010 Revised to include services disclaimer addendum.

D

15 August 2014

Updated for RoHS regulatory non-compliance.

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The Basics: Basic Information

Basic Information This service manual describes software version 6 of MAC 1200 resting ECG analysis system. The MAC 1200 resting ECG analysis system is a portable electrocardiograph with an integrated printing unit. It is used to acquire, record and process ECG signals. The integrated LCD graphics display shows three ECG channels. It also displays status information, filter settings, speed/format, gain and the status of the electrodes. With the setup feature, users can set up the device and the modes for his own needs. The MAC 1200 resting ECG analysis system offers three modes of operation: International

USA

Automatic

12-lead

Manual

6-lead

Arrhythmia

Arrhythmia

ECGs acquired in automatic (12-lead) mode can be transmitted to the MUSE or CardioSys system directly or via modem. A NC-battery with a charging circuit is integrated into the unit. In addition, a pump for the KISS system can be integrated into the instrument as a separate option. 

NC battery with charging circuit is integrated in general



Automatic mode with CSI protocol for transmission



Automatic mode with interpretation (Option Code)



Automatic mode with storage for up to 40 ECGs (Option Code) The acquired ECGs can be transmitted to MUSE or CardioSys directly or via a Modem. Additionally the MAC 1200 ST can run stress test operating mode (Option Code). To control stress test devices the MAC 1200 ST has a modified keyboard with additional keys for stress test.

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The Basics: Basic Information

Variants of the MAC 1200 resting ECG analysis system The complete list of the variants is included in Chapter 8, “Parts List”. The following table gives an overview of the different device models of the MAC 1200 resting ECG analysis system.

Device

Device Model

Manufacturer ID

Keypad

Labeling

Mains Voltage

MAC1200 MAC1200 ST

INT

GE Medical Systems

Icons

International

230V

MAC1200 MAC1200 ST

Europe 2

GE Medical Systems

Text

International

230V

MAC1200 MAC1200 ST

USA

GE Medical Systems

Text

USA

115V

MAC1200

RUSS

GE Medical Systems

Kyrillian

International

230V

MAC1200 ST

Japan

GE Medical Systems

Japanese

International

230V

MAC1200

Pharma

GE Medical Systems

Text

USA

115V

Hardware Functional Blocks The main functional blocks for the MAC 1200 resting ECG analysis system are listed below.

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

Switching power supply



PCB Control CS_CI



Printing unit



Keypad



1/4 VGA graphics display, monochrome

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The Basics: Block Circuit Diagram of Entire Instrument

Block Circuit Diagram of Entire Instrument MAC 1200 (US), Version 6.2

Program Memory Boot Loader

Modem Supply ECG RAM Buffered

Internal RAM

Configuration Memory

ECG Input

ECG Acquisition and Conditioning

Controller Core Real Time Clock Buffered

RS232 Driver Keypad Interface

Keypad

Display Interface

LCD Graphics Display

Display Supply

Line Power Input

Device On/Off Control

1/4 VGA Monochrome

Motor Control

Motor

Thermal Pinhead Control

Thermal Printhead

Pump Interface (not in US Device)

Option Pump (Not in US Device)

Logic Supply +5 V +3.3 V Analog Supply Printhead Supply

RS232 Interface

Printing Unit

PCB Control SC_CI

Line Power Input with Fuse

NC Battery

Switching Power Supply +26.5 V

PCB NC Battery Charge

Line Power, NC Battery

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The Basics: Mechanical Components

Mechanical Components The main mechanical components comprise the upper and lower shell of the MAC 1200 resting ECG analysis system. The lower shell serves as a basic unit to receive the following assemblies. 

Line power input module with fuse



Switching power supply



NC Battery



PCB NC Battery Charge



PCB Control CS_CI



Graphics display



Thermal printing unit



Paper container

The upper shell accommodates the keypad, which is connected to the PCB Control CS_CI via a 26-pin connector. The MAC 1200 resting ECG analysis system can be opened by releasing 5 screws at the bottom of the lower shell, opening the paper flap and lifting up the upper shell a little bit to remove the keypad cable from the PCB Control CS_CI. The upper shell then can be removed completely. To replace the NC Battery, the battery flap at the bottom of the lower shell must first be unlocked with a screw-driver before it can be removed. The 15-pin input connector to connect the patient cable and the 9-pin connector for the RS-232 interface are located directly on the PCB Control CS_CI.

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Functional Description

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