Service Manual
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MAC® 1200/MAC® 1200 ST Service Manual Software Version 6 2012250-023
Revision A
127( The information in this manual only applies to MAC 1200/1200 ST software version 6. It does not apply to earlier software versions. Due to continuing product innovation, specifications in this manual are subject to change without notice.
Listed below are GE Medical Systems Information Technologies trademarks. All other trademarks contained herein are the property of their respective owners. 900 SC, ACCUSKETCH, AccuVision, APEX, AQUA-KNOT, ARCHIVIST, Autoseq, BABY MAC, C Qwik Connect, CardioServ, CardioSmart, CardioSys, CardioWindow, CASE, CD TELEMETRY, CENTRA, CHART GUARD, CINE 35, CORO, COROLAN, COROMETRICS, Corometrics Sensor Tip, CRG PLUS, DASH, Digistore, Digital DATAQ, E for M, EAGLE, Event-Link, FMS 101B, FMS 111, HELLIGE, IMAGE STORE, INTELLIMOTION, IQA, LASER SXP, MAC, MAC-LAB, MACTRODE, MANAGED USE, MARQUETTE, MARQUETTE MAC, MARQUETTE MEDICAL SYSTEMS, MARQUETTE UNITY NETWORK, MARS, MAX, MEDITEL, MEI, MEI in the circle logo, MEMOPORT, MEMOPORT C, MINISTORE, MINNOWS, Monarch 8000, MULTI-LINK, MULTISCRIPTOR, MUSE, MUSE CV, Neo-Trak, NEUROSCRIPT, OnlineABG, OXYMONITOR, Pres-R-Cuff, PRESSURE-SCRIBE, QMI, QS, Quantitative Medicine, Quantitative Sentinel, RAC RAMS, RSVP, SAM, SEER, SILVERTRACE, SOLAR, SOLARVIEW, Spectra 400, Spectra-Overview, Spectra-Tel, ST GUARD, TRAM, TRAM-NET, TRAM-RAC, TRAMSCOPE, TRIM KNOB, Trimline, UNION STATION, UNITY logo, UNITY NETWORK, Vari-X, Vari-X Cardiomatic, VariCath, VARIDEX, VAS, and Vision Care Filter are trademarks of GE Medical Systems Information Technologies registered in the United States Patent and Trademark Office. 12SL, 15SL, Access, AccuSpeak, ADVANTAGE, BAM, BODYTRODE, Cardiomatic, CardioSpeak, CD TELEMETRY®-LAN, CENTRALSCOPE, Corolation, EDIC, EK-Pro, Event-Link Cirrus, Event-Link Cumulus, Event-Link Nimbus, HI-RES, ICMMS, IMAGE VAULT, IMPACT.wf, INTER-LEAD, IQA, LIFEWATCH, Managed Use, MARQUETTE PRISM, MARQUETTE® RESPONDER, MENTOR, MicroSmart, MMS, MRT, MUSE CardioWindow, NST PRO, NAUTILUS, O2SENSOR, Octanet, OMRS, PHiRes, Premium, Prism, QUIK CONNECT V, QUICK CONNECT, QT Guard, SMART-PAC, SMARTLOOK, Spiral Lok, Sweetheart, UNITY, Universal, Waterfall, and Walkmom are trademarks of GE Medical Systems Information Technologies. © GE Medical Systems Information Technologies, 2003. All rights reserved.
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MAC 1200/1200 ST 2012250-023
Revision A 15 April 2003
CE Marking Information
CE Marking Information Compliance The MAC 1200/1200 ST bears CE mark CE-0459 indicating its conformity with the provisions of the Council Directive 93/42/EEC concerning medical devices and fulfills the essential requirements of Annex I of this directive. The product is in radio-interference protection class A in accordance with EN 55011. 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 1200/1200 ST 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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MAC 1200/1200 ST 2012250-023
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CE Marking Information
For your notes
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MAC 1200/1200 ST 2012250-023
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Contents
1
The Basics... 1-1 About This Manual... 1-3 Manual Purpose... 1-3 Intended Audience... 1-3 Definitions... 1-3 Illustrations and Names... 1-4 Revision History... 1-4 Basic Information... 1-5 Variants of the MAC 1200/1200 ST... 1-6 Hardware Functional Blocks... 1-7 Block Circuit Diagram of Entire Instrument... 1-8 Mechanical Components... 1-9
2
Functional Description... 2-1 Basic Information... 2-3 Switching Power Supply... 2-4 PCB NC Battery Charge... 2-5 Charging Circuit for the NC Battery... 2-5 Battery-Dependent Device Behavior... 2-6 PCB Control CS_CI... 2-7 Generation of Internal Power Supplies... 2-7 Switch On/Off Circuit... 2-8 ECG Recording and Front-End Processing... 2-9 Controller Core... 2-10 Real Time Clock... 2-11 Memory... 2-12 LCD Graphics Display Interface... 2-12 PCB Modem Supply CS_M (Only US Device 101 168 23)... 2-17 Internal Interfaces... 2-18 Mechanical Interfaces... 2-18 Electronic Interfaces... 2-18 Interfaces to Peripherals... 2-26
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Electronic Interfaces... 2-27 Limitations... 2-29
3
System Test Function... 3-1 General Information... 3-3 Test Start... 3-4 Display Test... 3-5 Contrast Control... 3-5 Keyboard Test... 3-6 Motor Test... 3-7 Test Results... 3-8 Self-Test... 3-9 Error Codes... 3-9 Recording Test... 3-10 V24 Tests... 3-11 Sending and Receiving (1)... 3-11 Send Test String to Device (2)... 3-12 Send and Receive with Device (3)... 3-12 Time and Date... 3-13 Electrode Test... 3-14 Time Constant/Baseline Roll Filter... 3-15 Setting the Device Model... 3-16 Interpretation (International Device Models Only)... 3-18 Pace Enhance... 3-19 Serial Number... 3-20 Ergometer / Treadmills (JAPAN Device Model Only)... 3-21 ACI-TIPI (US Device Models Only)... 3-22 Pharma... 3-23 High Security... 3-23
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4
Repair Instructions... 1 Safety Instructions... 3 Replacing Components... 4 Opening the Device... 4
5
Troubleshooting... 5-1 Basic Information... 5-3
6
Adjustment Instructions... 6-1 Basic Information... 6-3
7
Service and Maintenance... 7-1 Technical Inspections/Preventative Maintenance... 7-3 Visual Check... 7-4 Test Functions... 7-4 Safety Analysis Tests... 7-8 Maintenance, Cleaning, and Disinfection... 7-12
8
Parts List... 8-1 Parts... 8-3
9
Specifications... 9-1 Basic Information... 9-3 Recording... 9-3 Printer Paper... 9-3 Paper Transport... 9-4 Membrane Keypad... 9-4 Display... 9-4 Indicators (LEDs)... 9-4 Automatic Functions... 9-4 Detection of Pacer Pulses... 9-5
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Heart Rate Indication... 9-5 Signal Inputs... 9-5 Data Interface... 9-6 Pin Assignment of Data Port... 9-6 Remote Start (Hardware)... 9-6 Signal Transmission... 9-7 ECG Calibration... 9-8 Automatic ECG Gain Adjustment... 9-8 Baseline... 9-8 Anti-Drift System (ADS) (Cubic Spline)... 9-8 ECG Storage... 9-8 Blocking... 9-9 Electrode Monitoring... 9-9 Text Input... 9-9 Copy Function... 9-9 Test... 9-9 Power Supply... 9-9 Mains Operation... 9-10 Battery Operation... 9-10 Operational Readiness... 9-10 Operating Position... 9-10 Environment... 9-11 Recorder Dimensions... 9-11 Weight... 9-11
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Device Documents... 10-1 Basic Information... 10-3 MAC 1200/1200 ST 101 168 01...38... 10-4 MAC 1200/1200 ST 101 168 01...38... 10-5 Steuerung CS_CI 38803267-D01 Schematic1 of 10... 10-6 Steuerung CS_CI 38803267-D01 Schematic2 of 10... 10-7 Steuerung CS_CI 38803267-D01 Schematic3 of 10... 10-8 Steuerung CS_CI 38803267-D01 Schematic4 of 10... 10-9 Steuerung CS_CI 38803267-D01 Schematic5 of 10... 10-10 Steuerung CS_CI 38803267-D01 Schematic6 of 10... 10-11 Steuerung CS_CI 38803267-D01 Schematic7 of 10... 10-12 Steuerung CS_CI 38803267-D01 Schematic8 of 10... 10-13
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Steuerung CS_CI 38803267-D01 Schematic9 of 10... 10-14 Steuerung CS_CI 38803267-D01 Schematic10 of 10... 10-15 Steuerung CS_CI 38803267-D11 Reference Drawing... 10-16 Akku-Ladung CS_CI 388 032 68-D01 Reference Drawing... 10-17 Akku-Ladung CS_CI 388 032 90-D01 Schematic... 10-18 Akku-Ladung CS_CI 388 032 90-D02 Schematic... 10-19 Modem Supply 2000772-001 Schematic... 10-20 Modem Supply CS_M 2000771-002 Reference Drawing... 10-21
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MAC 1200/1200 ST 2012250-023
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For your notes
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MAC 1200/1200 ST 2012250-023
Revision A
1
Revision A
The Basics
MAC 1200/1200 ST 2012250-023
1-1
For your notes
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MAC 1200/1200 ST 2012250-023
Revision A
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.
Revision A
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”.
MAC 1200/1200 ST 2012250-023
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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.
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Revision
Date
A
15 April 2003
MAC 1200/1200 ST 2012250-023
Comments Initial release of this manual.
Revision A
The Basics: Basic Information
Basic Information This service manual describes software version 6 of MAC 1200/1200 ST. The MAC 1200/1200 ST 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 1200/1200 ST 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 1200/1200 ST 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 1200/1200 ST.
Device
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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
MAC 1200/1200 ST 2012250-023
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The Basics: Basic Information
Hardware Functional Blocks The main functional blocks for the MAC 1200/1200 ST are listed below.
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Switching power supply
Printing unit
PCB Control CS_CI PCB Modem Supply CS_M for MAC 1200 US device only, from version V1.1 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 PCB Modem Supply Modem Supply (Mac 1200 US only)
Program Memory Boot Loader
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
MAC 1200: Modem Supply in US device only Option pump not in US device.
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 1200/1200 ST. 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 PCB Modem Supply CS_M 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 1200/1200 ST 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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The Basics: Mechanical Components
For your notes
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MAC 1200/1200 ST 2012250-023
Revision A