GE Healthcare MAC 800 Service Manual

GE Healthcare

MAC™ 800 Resting ECG Analysis System

Software Version 1

Service Manual

2031504-159 Revision B

Systems Information Technologies, a division of General Electric Company going to market as GE Healthcare. All other marks are not owned by GE and are instead owned by their respective owners.

NOTE

This manual applies to the MAC™ 800 software version 1. Due to continuing product innovation, specifications in this manual are subject to change without notice.

T-2 MAC™ 800 2031504-159B

15 August 2008

Contents

1 Introduction

Manual Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Manual Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Warnings, Cautions, and Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Equipment Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

Responsibility of the Manufacturer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4

Equipment Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4

Product Label Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5

Serial Number Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5

Service Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6

2 Equipment Overview

General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2

Side View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

Back View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4

Detailed Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7

Hardware/firmware Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8

Product Interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8

Layered Structure of application software. . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9

ECG Data Flow With Sampling Rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10

3 Troubleshooting

General Fault Isolation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Power-Up Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

Poor Quality ECGs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

Visual Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3

Event Logging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Setting Up Event Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4

Exporting the Event Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5

Performing Diagnostic Tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Accessing the System Diagnostics Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6

Display Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7

2031504-159B MAC™ 800 1-i

Speaker Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9

Keyboard Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9

Acquisition Module Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-10

Battery Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11

Writer Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11

RS232 Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-13

LAN Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-14

Modem Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-15

USB Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-15

Patient Lead Wire Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-16

Equipment Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

ECG Data Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-17

Error Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

Acquisition Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18

Printer Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18

Frequently Asked Questions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Save System Setups to SD Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-19

Storing ECGs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20

Battery Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21

MAC Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21

Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21

Location Number. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22

Patient Questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22

Passwords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23

Serial Number. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23

Resting ECG Report Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23

Editing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24

Navigating the User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24

Resting ECG Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-25

Arrhythmia Mode Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-26

Main Screen Power Up Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-26

4 Maintenance

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Recommended Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2

Required Tools and Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2

High-Level FRU Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

FRU Replacement Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Preparing System for FRU Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5

Replacing the Patient Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5

Replacing Barcode Reader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6

Replacing the Battery Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7

Replacing the Top Cover Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8

Replacing the Keypad Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10

Replacing the LCD Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11

Removing the Printer Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12

1-ii MAC™ 800 2031504-159B

Reassembling the Printer Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-14

Processing ECGs in Internal Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-15

Saving System Configuration Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-15

Removing the Mainboard Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-15

Reassembling the Mainboard Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . .4-17

Replacing the Internal Modem (option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-18

Removing the Power Supply Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-18

Reassembling the Power Supply Assembly . . . . . . . . . . . . . . . . . . . . . . . . .4-21

Replacing the Bottom Cover Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-21

Replacing the Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-22

Functional Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23

Visual Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-24

Operational Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-25

Diagnostic Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-25

Electrical Safety Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-26

Updating Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27

Conditioning the Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-28

5 Parts Lists

Ordering Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Field Replaceable Units (FRUs). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

MAC 800 Upper Level Assembly Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3

MAC 800 Upper Level Assembly Part List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-9

FRU Top Cover Assembly, PN 2039939-001 . . . . . . . . . . . . . . . . . . . . . . . . . . .5-13

FRU Printer Assembly, PN 2039941-001 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-13

FRU Mainboard Assembly, PN 2039942-001 . . . . . . . . . . . . . . . . . . . . . . . . . . .5-14

FRU Power Supply Assembly, PN 2040052-001 . . . . . . . . . . . . . . . . . . . . . . . . .5-14

FRU Bottom Cover Assembly, PN 2039943-001 . . . . . . . . . . . . . . . . . . . . . . . . .5-15

Model Data Matrix Barcode Scanner Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-16

Keypads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-18

Power Cords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-19

Serial Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-19

FRU Kits, PN 2039945-001 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-20

A Technical Specifications

Features and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5

B Electromagnetic Compatibility

Electromagnetic Compatibility (EMC) Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

2031504-159B MAC™ 800 1-iii

Guidance and Manufacturer’s Declaration - Electromagnetic Emissions . . . . . . B-2

Guidance and Manufacturer’s Declaration - Electromagnetic Immunity . . . . . . . B-3

Guidance and Manufacturer's Declaration - Electromagnetic Immunity . . . . . . . B-3

Recommended Separation Distances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4

EMC-Compliant Cables and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5

C Supplies & Accessories

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2

Standard Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2

Value Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2

Thermal Papers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

Serial Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

Country-Specific Power Cords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4

1-iv MAC™ 800 2031504-159B

1 Introduction

2031504-159B MAC™ 800 1-1

Introduction

Manual Information

Revision History

The document’s part number and revision appear at the bottom of each page. The revision identifies the document’s update level. The revision history of this document is summarized in the following table.

Revision Date Comment

Manual Purpose

Revision History, PN 2031504-159

A 1 July 2008 Initial release of document. B 15 August 2008 Revised product specifications.

This manual supplies technical information for service representatives and technical personnel so they can maintain the equipment to the assembly level. Use it as a guide for maintenance and electrical repairs considered field repairable. Where necessary, the manual identifies additional sources of relevant information and/or technical assistance.

See the MAC™ 800 Resting ECG Analysis System Operator’s Manual (2031504-182) for the instructions necessary to operate the equipment safely in accordance with its function and intended use.

Intended Audience

This manual is intended for persons who use, maintain, or troubleshoot this equipment.

Warnings, Cautions, and Notes

The terms danger, warning, and caution are used throughout this manual to identify hazards—sources of potential injury to a person—and to designate a degree or level or seriousness. Familiarize yourself with their definitions and significance.

Term Definition

DANGER Indicates an imminent hazard which, if not avoided, will result in death or

serious injury.

WARNING Indicates a potential hazard or unsafe practice which, if not avoided, could

result in death or serious injury.

1-2 MAC™ 800 2031504-159B

Term Definition

CAUTION Indicates a potential hazard or unsafe practice which, if not avoided, could

NOTE Provides application tips or other useful information to ensure that you get

Equipment Information

Failure on the part of the responsible individual, hospital, or institution using this equipment to implement a satisfactory maintenance schedule may cause undue equipment failure and possible health hazards.

To ensure patient safety, use only parts and accessories manufactured or recommended by GE Healthcare.

Contact GE Healthcare for information before connecting any devices to this equipment that are not recommended in this manual.

If the installation of this equipment, in the USA, will use 240 V rather than 120 V, the source must be a center-tapped, 240 V, single-phase circuit.

Introduction

result in minor personal injury or product/property damage.

the most from your equipment.

Safety Messages

Parts and accessories used must meet the requirements of the applicable IEC 60601 series safety standards, and/or the system configuration must meet the requirements of the IEC 60601-1-1 medical electrical systems standard.

The use of accessory equipment not complying with the equivalent safety requirements of this equipment may lead to a reduced level of safety of the resulting system. Consideration relating to the choice shall include:

 use of the accessory in the patient vicinity; and

 evidence that the safety certification of the accessory has been

performed in accordance to the appropriate IEC 60601-1 and/or IEC 60601-1-1 harmonized national standard.

Additional safety messages may be found throughout this manual that provide appropriate safe operation information.

DANGER

FLAMMABLE HAZARD — Do not use in the presence of flammable anesthetics.

2031504-159B MAC™ 800 1-3

Introduction

WARNING

USE APPROPRIATE POWER SOURCE — This is a Class I device with protective earth equipment. The mains plug must be connected to an appropriate power supply.

WARNING

PROPER GROUNDING — Operate the unit from its battery if the integrity of the protective earth conductor is in doubt.

CAUTION

AUTHORIZED SERVICE PERSONNEL ONLY — This equipment contains no user serviceable parts. Refer servicing to qualified service personnel.

CAUTION

USE ONLY ON ORDER BY PHYSICIAN — U.S. Federal law restricts this device to the sale by or on the order of a physician.

Responsibility of the Manufacturer

GE is responsible for the effects of safety, reliability, and performance only if:

 assembly operations, extensions, readjustments, modifications, or

repairs are carried out by persons authorized by GE,

 the electrical installation of the relevant room complies with the

requirements of the appropriate regulations, and

 the equipment is used in accordance with the instructions for use.

Equipment Symbols

See the MAC™ 800 Resting ECG Analysis System Operator’s Manual (2031504-182) for information about the symbols used on this product and its packaging.

Equipment Identification

Equipment can be identified via the product label and serial number attached to the equipment. The following topics describe the components of the product label and the serial number.

1-4 MAC™ 800 2031504-159B

Product Label Format

Introduction

GE product labels provide the product’s part number, model description, serial number, manufacture date, and manufacture site. The following illustration shows the layout of a typical product label. A description of the label components follows the illustration.

Product Label

Item Description

A Date of manufacture in YYYY-MM format

Serial Number Format

B Part number of product C Product code description D Serial number.

For more information, see “Serial Number Format” on page 1-5.

E Manufacture site

NOTE

Actual product label may differ from this representative example.

Every GE device is uniquely identified via serial number, which appears on the product label (see “Product Label Format” on page 1-5). The following illustration and table describe the serial number components.

2031504-159B MAC™ 800 1-5

Introduction

Service Requirements

A The product code for MAC 800 systems is SDS. B Year Manufactured (00-99). Examples:

 07 = 2007  08 = 2008

C Fiscal Week Manufactured D Production Sequence Number E Manufacturing Site F Miscellaneous Characteristic

Refer equipment servicing to GE-authorized service personnel only. Any unauthorized attempt to repair equipment under warranty voids the warranty.

It is the user’s responsibility to report the need for service to GE or to one of their authorized agents.

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2 Equipment Overview

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Equipment Overview

General Description

The MAC™ 800 is a 3- and 6-lead print, 12-channel display system with a 7 inch (17.78 cm) diagonal display, active patient cable, battery operation, and options for communication capabilities.

Front View

Name Description

A Screen Displays waveform and text data. B AC LED Indicates when the unit is connected to AC power. C Battery LED Indicates current battery status.

 Solid indicates the battery is charging.  Flashing indicates the battery is low.  Off indicates the battery is fully-charged or is

discharging but not at a low state. D Power LED Indicates when the unit is powered on. E Keypad Controls the system or enters data. See “Keypad” on

page 2-4 for more information. F Writer Door Button Opens printer door. G Writer Prints reports.

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Side View

Equipment Overview

Name Description

A ECG signal input connector Connects the patient cable to the device.

Back View

B Secure digital (SD) card

slot

Houses the secure digital (SD) card for external storage.

Name Description

A Modem port Standard RJ-11 jack for connecting the modem to

a telephone line.

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Equipment Overview

Keypad

Name Description

B LAN port Standard RJ-45 jack for connecting the device to a

LAN. LEDs on the port indicate status.

 Solid green indicates a good connection.  Flashing amber indicates network traffic.

C USB port Universal Serial Bus port used to connect external

devices, such as the optional barcode reader.

D COMM port Serial port for data communication. Use a serial

cable to connect the unit to a CASE/Cardiosoft or

MUSE system. E Main AC power connector Connects the unit to an AC power outlet. F Equipotential grounding lug Grounded connector for attaching non-grounded

peripheral devices to ensure equipotentiality. G Carry handle Retractable handle for carrying the unit.

The English keypad is shown in the following illustration.

Name Description

A Function Keys

(F1 through F6)

Selects menu options on the screen.

B Leads key Changes the leads when the screen is being used to

display waveforms.

C Power Button Turns the unit on and off.

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Equipment Overview

Name Description

D ECG key Acquires a resting ECG and prints a 10-second report

in Arrhythmia mode.

E Trimpad The arrows move the cursor left, right, up, or down.

The center button moves the focus within a window or selects the currently active item.

F Rhythm key Prints a continuous, real-time rhythm ECG strip. Press

the Stop key to stop the rhythm strip from printing.

G Stop key Stops the writer from printing.

H Backspace Key Deletes characters.

I Space Key Adds a space between typed characters.

J T9 key Switches between different input methods. For more

information on using the T9 key, refer to the MAC™ 800 Operator’s Manual.

2031504-159B MAC™ 800 2-5

Equipment Overview

Detailed Description

Block Diagram

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System Architecture

Overview

Equipment Overview

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Equipment Overview

Hardware/firmware Architecture

The MAC 800 hardware and firmware subsystems include the following:

Hardware Subsystems Firmware Subsystems

Product Interfaces

 CPU core  Display  Keyboard  ECG Acquisition subsystem  Thermal printer  Power supply  Housing

 CE BSP (Board-Support-Package)  Printer API  Printer SW (Firmware for the Printer)  Acquisition API  Acquisition SW (Firmware for the Printer)

The MAC 800 system offers the following interfaces for connecting to external devices for data communication, software updates, and the control of workload devices:

 RS232 port (1)

Connects to external systems, like MUSE or Cardiosoft.

 RJ-45 port (1)

Connects to networks via 100baseT ethernet connector via an external medical isolator.

 USB connector(2)

Connects to USB-capable devices, such as optional barcode reader or external USB keyboard.

 Secure Digital (SD) Card slot

Interfaces with a Secure Digital card, which is used to store ECGs, to flash the device with software updates, and to connect memory / future IO extensions.

 RJ-11 port (1)

Connects an internal medical grade Analog Modem (optional) to a phone line.

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Software Architecture

Layered Structure of application software

Equipment Overview

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Equipment Overview

ECG Data Flow With Sampling Rates

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3 Troubleshooting

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Troubleshooting

General Fault Isolation

Power-Up Self-Test

See the MAC™ 800 Operator’s Manual, Chapter 2, “Equipment Overview: Getting Started” to verify operation.

On power-up, the system automatically runs an internal self-test. If all circuit tests pass, you will see the start-up screen.

Poor Quality ECGs

The next screen that appears after the start-up screen depends on the Power Up mode selected in System Configuration. The Resting ECG mode is the default Power Up mode.

If the equipment is not working properly, ask the following questions.

 Is the unit turned on?

 Have there been any changes in the use, location, or environment of

the equipment that could cause the failure?

 Has the equipment hardware or software been modified since last

use?

 Is operator error the cause of the problem?

Try to repeat the scenario exactly and compare that to the proper operation of the equipment described in the manual.

 Is the battery installed?

 When connected to the AC wall outlet, does the green AC power light

glow?

Poor quality ECGs can be caused by factors in the environment, inadequate patient preparation, hardware failures related to the acquisition module, lead wires, cables, or problems in the unit.

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Visual Inspection

Troubleshooting

A thorough visual inspection of the equipment can save time. Small things—disconnected cables, foreign debris on circuit boards, missing hardware, loose components—can frequently cause symptoms and equipment failures that may appear to be unrelated and difficult to track.

NOTE

Take the time to make all the recommended visual checks before starting any detailed troubleshooting procedures

If the area is… Look for…

I/O Connectors and Cables AC power cord

Interface cables

Circuit boards

 Fraying or other damage  Bent prongs or pins  Cracked housing  Loose screws in plugs

 Excessive tension or wear  Loose connection  Strain reliefs out of place

 Moisture, dust, or debris (top and bottom)  Loose or missing components  Burn damage or smell of over-heated components  Socketed components not firmly seated  PCB not seated properly in edge connectors  Solder problems: cracks, splashes on board, incomplete

feedthrough, prior modifications or repairs

Ground wires/Wiring

 Loose wires or ground strap connections  Faulty wiring  Wires pinched or in vulnerable position

Fasteners Loose or missing screws or other hardware, especially

fasteners used as connections to ground planes on PCBs

Power source

 Faulty wiring, especially AC outlet  Circuit not dedicated to system

NOTE

Power source problems can cause static discharge, reading problems, and discharge.

Keyboard

 Cuts or cracks in the keyboard membrane  Unreadable labels

LCD display filter Scratches or cracks in the display filter (transparent part of

keyboard bezel) that impair viewing

Battery pack

SD card

2031504-159B MAC™ 800 3-3

 Cracks, swells, or leaks in the battery casing  Dirt, scratches, or debris on contacts

 Cracks  Dirt, scratches, or debris on contacts

Troubleshooting

Event Logging

Setting Up Event Logging

The MAC 800 system can be set up to create an XML-format Event Log that contains system errors, warnings, and informational messages. Use the following procedure to configure the level of severity of messages written to the Event Log.

1. Power on the MAC 800 system by pressing the Power button.

2. From the Main Menu, press F4 to select System Configuration.

3. Press F6 (More) > F6 (More) > F5 (Service Setup).

The following window prompts you to enter the Service password.

4. Type 7763 and press F6 to select OK to open the Service Setup menu.

5. Move the focus to the Event Log button and press the Enter key.

6. Do one of the following:

 To enable event logging, check the Key Event Logging check box.

 To disable event logging, clear the Key Event Logging check box.

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7. Select a level of severity to log from the Log Level list:

8. Press F6 to select Save.

Exporting the Event Log

1. Repeat step 1 through step 5 in “Setting Up Event Logging” on

2. Insert an SD card (gold contacts down) into the SD card slot as

Troubleshooting

 Select None to log nothing to the Event Log.

 Select Error to log only errors to the Event Log.

 Select Warning to log errors and warnings to the Event Log.

 Select Information to log errors, warnings, and information

messages to the Event Log.

page 3-4.

shown in the following illustration.

3. Press F1 to select Export Log Files.

The current Event Log file, log_0.log, is copied to a log directory on the SD card.

NOTE

To access the log file, insert the SD card into an SD card reader connected to a computer with a Windows operating system and open the log file with a text editor like Notepad or WordPad. If the Event Log is requested by GE Service for troubleshooting an issue, the file can be sent as an email attachment.

Performing Diagnostic Tests

Diagnostic tests can be used to verify that the MAC™ 800 operates properly. The tests check the operation of the display screen, speaker, keyboard, thermal writer, battery, and communications. They are useful tools for troubleshooting problems and can be useful as a part of system checkout procedures.

2031504-159B MAC™ 800 3-5

Troubleshooting

Accessing the System Diagnostics Function

The System Diagnostics menu can be used to perform functional diagnostic tests. Use the following procedure to access the System Diagnostics menu.

1. Power on the MAC 800 system by pressing the Power button.

2. From the Main Menu, press F4 to select System Configuration.

3. Press F6 (More) > F6 (More) > F5 (Service Setup).

The following window prompts you to enter the Service password.

4. Type 7763 and press F6 to select OK to open the Service Setup menu.

5. Move the focus to the System Diagnostics button and press the Enter key to open the Diagnostic Tests window.

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Display Test

Troubleshooting

The following sections describe how to perform the specific diagnostic tests. Proceed to the appropriate section for the test you need to perform.

The Display Test can be used to determine if the display pixels are working properly.

1. Open the Diagnostic Tests window as described in “Accessing the

System Diagnostics Function” on page 3-6.

2. Select the Display Test button.

The following window opens.

3. Select the Start Test button.

The following window opens.

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Troubleshooting

4. Press the right arrow key on the Trimpad repeatedly to move the color bars horizontally across the screen.

5. Verify that the color band pattern (red, green, blue, white) scrolls across the screen.

Pass the test if the pattern is replicated without discoloration.

6. Press the F1 key to switch to horizontal color bars.

7. Press the down arrow key on the Trimpad repeatedly.

8. Verify that the color band pattern (red, green, blue, white) scrolls down the screen.

Pass the test if the pattern is replicated without discoloration.

9. Press the F1 key to switch to cycle through the solid color pane (red, green, blue, white).

For each pane, check for black pixels. Pass the test if no more than four black pixels are observed on any single color pane.

NOTE

A black pixel observed on one pane will probably be observed on every pane.

10. Press Enter when the test is complete.

The following window opens.

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