GE Healthcare MAC 1600 Service Manual

Fron

GE Healthcare

MAC™ 1600

ECG Analysis System

Product Code SDE

Service Manual

2028451-183 Revision A

NOTE: The information in this manual only applies to MAC™ 1600 ECG Analysis Systems with product code SDE. Due

to continuing product innovation, specifications in this manual are subject to change without notice.

Marquette, MUSE, CASE, MAC, MARS, MULTI-LINK, Hookup Advisor, 12SL, Archivist, Mactrode, and BabyMAC are

trademarks owned by GE Medical Systems Information Technologies, a General Electric Company going to market as

Healthcare. All other marks are not owned by GE and are instead owned by their respective owners.

T-2 MAC™ 1600 ECG Analysis System Revision A

2028451-183 10 April 2008

Contents

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Manual information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Manual purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Intended audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Warnings, cautions, and notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Safety messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Responsibility of the manufacturer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5

Equipment symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Service information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Service requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Equipment identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

2 Equipment overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

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

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

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

Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Keyboard (stress option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Detailed description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8

Hardware/firmware architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

3 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

General fault isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Power-up self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Poor quality ECGs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Visual inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

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Event logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Setting Up event logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4

Exporting the event log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5

Performing diagnostic tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Accessing the system diagnostics function . . . . . . . . . . . . . . . . . . . . . . . . . .3-6

Testing the display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7

Testing the speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Testing the keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Testing the acquisition module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Checking battery status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Testing the writer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Testing the RS232 port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-15

Testing the LAN option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Testing the modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-17

Testing the USB port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18

Testing the patient lead wires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-19

Equipment problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

ECG data noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20

Error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

Acquisition error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

Printer error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23

Frequently asked questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24

System setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-27

Clinical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28

Navigating the user interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-29

4 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

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

Recommended maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2

Required tools and supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2

FRU replacement procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

High level FRU identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3

Preparing system for FRU replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4

Replacing the patient cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4

Replacing barcode reader or barcode reader cable . . . . . . . . . . . . . . . . . . . . 4-5

Replacing the paper tray assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6

Replacing the battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7

Replacing the keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8

Replacing the display assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11

Replacing the internal modem (option) . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12

Replacing the power supply assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13

Replacing the acquisition board assembly . . . . . . . . . . . . . . . . . . . . . . . . . .4-15

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Replacing the KISS pump assembly (option) . . . . . . . . . . . . . . . . . . . . . . . . 4-17

Replacing the printer assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19

Replacing the printer board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24

Replacing the printhead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-26

Replacing the optical sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-30

Replacing the mainboard/ETE module assembly . . . . . . . . . . . . . . . . . . . . 4-33

Functional checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-38

Visual inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-39

Functional checkout procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40

Electrical Safety Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-41

Updating software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-42

Conditioning the battery pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-44

5 Parts lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Ordering parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Field replaceable units (FRUs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

MAC 1600 upper level assembly, PN 2032093 . . . . . . . . . . . . . . . . . . . . . . .5-3

Power supply FRU kit, PN 2035703-001 . . . . . . . . . . . . . . . . . . . . . . . . . . .5-10

Mainboard ETE assembly FRU kit, PN 2035704-001 . . . . . . . . . . . . . . . . . 5-10

Acquisition assembly FRU kit, PN 2035705-001 . . . . . . . . . . . . . . . . . . . . .5-10

Cable harness FRU kit, PN 2035707-001 . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Display cover assembly FRU kit, PN 2035706-001 . . . . . . . . . . . . . . . . . . . 5-11

Printer assembly FRU kit, PN 2035702-001 . . . . . . . . . . . . . . . . . . . . . . . . 5-11

Paper tray and printer door FRU kit, PN 2035711-001 . . . . . . . . . . . . . . . . 5-12

Display assembly FRU kit, PN 2035700-001 . . . . . . . . . . . . . . . . . . . . . . . . 5-12

Printer board assembly FRU kit, PN 2036813-001 . . . . . . . . . . . . . . . . . . . 5-12

KISS pump assembly FRU kit, PN 2036814-001 . . . . . . . . . . . . . . . . . . . . 5-12

KISS pump hardware FRU kit, PN 2036815-001 . . . . . . . . . . . . . . . . . . . . . 5-13

Internal modem FRU kit, PN 2036816-001 . . . . . . . . . . . . . . . . . . . . . . . . . 5-13

Printhead FRU kit, PN 2036817-001 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13

Optical sensor and bracket FRU kit, PN 2036818-001 . . . . . . . . . . . . . . . . 5-13

Fastener hardware FRU kit, PN 2035708-001 . . . . . . . . . . . . . . . . . . . . . . . 5-14

Middle and base plastic FRU kit, PN 2036812-001 . . . . . . . . . . . . . . . . . . .5-16

Plastics kit, PN 2035709-001 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16

Keyboards, non-stress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17

Keyboards, stress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-18

Data Matrix barcode scanner kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19

Power cords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20

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A Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Features & functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

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

B Electromagnetic compatibility . . . . . . . . . . . . . . . . . . . . . B-1

Electromagnetic compatibility (EMC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

Guidance and manufacturer’s declaration - electromagnetic emissions . . . B-2

Guidance and manufacturer’s declaration - electromagnetic immunity . . . . B-4

Guidance and manufacturer's declaration - electromagnetic immunity . . . . B-5

Recommended separation distances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-7

EMC exceptions disclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-8

C EMC-compliant supplies & accessories . . . . . . . . . . . . . C-1

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

Standard accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

Value accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4

Thermal papers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5

Contrast Papers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5

Premium Papers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5

Archivist 25 Paper for Europe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5

Archivist 25 Paper for US . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5

Country-specific power cords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-6

Optional accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-7

iv MAC™ 1600 ECG Analysis System Revision A

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1 Introduction

Revision A MAC™ 1600 ECG Analysis System 1-1

2028451-183

Manual information

Revision history

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

Revision Date Comment

Manual purpose

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.

Introduction: Manual information

Table 1. Revision History, PN 2028451-183

A 10 April 2008 Initial release of document.

Intended audience

See the operator’s manual for the instructions necessary to operate the equipment safely in accordance with its function and intended use.

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

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Introduction: Warnings, cautions, and notes

Warnings, cautions, and notes

The terms danger, warning, and caution are used throughout this manual to point out hazards and to designate a degree or level or seriousness. Familiarize yourself with their definitions and significance.

Hazard is defined as a source of potential injury to a person.

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.

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

result in minor personal injury or product/property damage.

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

the most from your equipment.

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Safety messages

Introduction: Safety messages

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

DANGER

Do not use in the presence of flammable anesthetics.

WARNING

CONNECTION TO MAINS – This is class I equipment.

The mains plug must be connected to an appropriately grounded power supply.

WARNING

BATTERY OPERATION – If the integrity of the protective earth conductor is in doubt, operate the unit from its battery.

CAUTIONS

This equipment contains no user serviceable parts. Refer servicing to qualified service personnel.

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 us.

 The electrical installation of the relevant room complies with the requirements

of the appropriate regulations.

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

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General

Introduction: Safety messages

The intended use of this device is to record ECG signals from surface ECG electrodes. This device can analyze, record, and store electrocardiographic information from adult and pediatric populations. This data can then be computer analyzed with various algorithms such as interpretive ECG and signal averaging for presentation to the user.

This device is intended for use under the direct supervision of a licensed health care practitioner.

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.

Equipment symbols

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.

See the MAC 1600 operator’s manual for information about the symbols used on this product and its packaging.

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Service information

Service requirements

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

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

Equipment identification

Label format

Introduction: Service information

Table 2. Equipment Identification Label

Item Description

A Date of manufacture in YYYY-MM format

B Part number of product

C Product code description

D Serial number (See “Serial number format” on page 1-7.)

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Serial number format

Introduction: Service information

Every GE device has a unique serial number for identification. The serial number appears on the device label and is formatted as seen in the following illustration. .

# # # # # # # # # # # # #

ABCDEF

A The product code for MAC 1600 systems is SDE. B Year Manufactured (00-99)

08 = 2008 09 = 2009

(and so on) C Fiscal Week Manufactured D Production Sequence Number E Manufacturing Site F Miscellaneous Characteristic

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For your notes

Introduction: Service information

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2 Equipment overview

Revision A MAC™ 1600 ECG Analysis System 2-1

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General description

The MAC™ 1600 ECG Analysis System is a 12-lead, 12-channel system with a

6.5 There are also options for communication capabilities.

Front View

inch (165 mm) diagonal display, active patient cable, and battery operation.

Name Description

A Display Presents waveform and text data.

B Power LED Indicates the unit is plugged in and receiving power.

C Battery LED Indicates various battery states:

 Solid amber light indicates the battery is charging.  Flashing amber light indicates the battery is low.  Off indicates the battery is neither charging nor low.

D Keyboard Input device for controlling the system or entering data.

See “Keyboard Layout” on page 2-4 for more information.

E Writer Prints reports.

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Side View

Equipment overview: General description

Name Description

Back View

A ECG signal input

connector

D-sub 15-pin female connector for the acquisition cable.

B KISS Connector Connection port for the optional KISS lead system.

C Carrying handle Handle for carrying the MAC 1600 device.

Name Description

A External Power

Connector

12V power supply for future external devices.

not use.

B COMM Port A Serial connector for stress devices (bicycle ergometer

or treadmill).

C COMM Port B Serial connector for data communication with CASE/

CardioSoft or MUSE system or connect to an external modem.

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Equipment overview: General description

Name Description

D Phone jack RJ11 connector from the internal modem to an analog

phone line.

E AC power connection Standard connector for the AC power cable.

F USB connector Standard Universal Serial Bus connector for USB

devices, such as the optional barcode reader or external USB keyboard.

G LAN connection RJ45 network connector.

H SD card slot Secure Digital card slot. Insert card as indicated by the

icon. The MAC 1600 system supports only SD cards formatted for the FAT or FAT16 file systems.

I External Video Monitor

connection

Standard 15-pin VGA connector for an external monitor. Connect a medical grade VGA CRT or medical grade VGA compatible LCD display.

NOTE

The MAC 1600 display resolution is 800 by 480 pixels. Due to differing aspect ratios, the image may appear distorted on some LCD monitors. Consult the operating guide for your LCD monitor.

J Equipotential grounding

lug

Connect non-grounded peripheral devices to ensure equipotential.

WARNING

SYSTEM LEAKAGE CURRENT – Keep leakage current within acceptable limits when connecting auxiliary equipment to this device.

Total system leakage must not exceed 300 microamperes (United States) or 500 microamperes (international).

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Keyboard

Equipment overview: General description

NOTE

The English keyboard is shown in this section.

Name Description

A function keys

through F6)

(F1

Keyboard

Used to select menu options on the screen.

JK HMN

B Power switch Used to turn the system on, bring the system to Standby mode, or turn the system off.

C Leads key Used to change the leads when the screen is being used to display waveforms.

D backspace key Used to delete characters.

E ECG key Used to acquire a resting ECG, to print a 10-second report in Arrhythmia mode, or to print a 12-lead

in Stress mode.

report

F Rhythm key Used to print a continuous, real-time rhythm ECG rhythm strip. Press the Stop key to stop the rhythm strip

from printing. (Rhythm report is not stored and cannot be transmitted.)

G Stop key Used to stop the writer from printing.

H Enter key Used to advance the focus in a window or to select items from the screen.

I Trimpad Press arrows to move the cursor left, right, up, or down. Press the center of the Trimpad to move the focus

within a window or to select an item.

J shift key Used to enter a capital letter. Press shift + P to type a capital P.

K Alt key Used to select menu options in the Windows Explorer.

L space bar Used to add a space between typed characters or to highlight screen items.

M option key Used to enter special characters on non-English keyboards.

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Equipment overview: General description

Keyboard (Continued)

Name Description

N Esc key Used to close a window on the screen.

O stress keys These keys will be on your keyboard if your system has the stress option. See “Keyboard (stress option)” on

page 2-7 for more information

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Equipment overview: General description

Keyboard (stress option)

NOTE

ABCD E FGH

The English keyboard is shown in this section.

IJKLMNOP

Name Description

A Pretest key Press to advance to the PRETEST phase (or advance to next stage within the selected phase).

B Exercise key Press to advance to the EXERCISE phase (or advance to next stage within the selected phase).

C Recovery key Press to advance to the RECOVERY phase (or advance to next stage within the selected phase).

D Test end key Press and hold to end the test and start the TEST END phase.

E Hold key Press to maintain the current stage. (Automatic stage sequencing will stop.) Press again to return to stage

sequencing.

F Speed W + key Press to manually increase the treadmill belt speed or the ergometer load.

Grade ↑ key

H Start tmill key Press to start the treadmill during the test.

I STOP tmill key Press to stop the treadmill during the test.

Grade ↓ key

K Speed W - key Press to manually decrease the treadmill belt speed or the ergometer load.

L Enter BP key Press to enter blood pressure readings or to trigger a reading from an external device.

M Comment key Press to enter comments about the test. Comments are printed on many of the final reports.

Press to increase the elevation of the treadmill belt.

Press to decrease the elevation of the treadmill belt.

N Medians key Press to print a medians report.

O 12ld key Press to print a 12 lead report (10 seconds of acquired data).

P Recall key Press to print a one-page rhythm strip using the previous 10 seconds of data.

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Equipment overview: Detailed description

Detailed description

Block diagram

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Equipment overview: Hardware/firmware architecture

Hardware/firmware architecture

The MAC 1600 hardware subsystems include the following:

 CPU core

 Display

 Keyboard

 ECG Acquisition

 Thermal printer

 Power supply

 Housing

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For your notes

Equipment overview: Hardware/firmware architecture

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3 Troubleshooting

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General fault isolation

Power-up self-test

See the MAC 1600 Operator’s Manual, Chapter 2, “Equipment Overview” to

operation.

verify

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

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 yourself 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

the equipment described in the manual.

 Is the battery installed?

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

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Poor quality ECGs

Visual inspection

Area Look for the following problems

Troubleshooting: General fault isolation

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.

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.

Table 1. Visual Inspection List

I/O connectors and cables and AC power cord

Interface cables Excessive tension or wear

Circuit boards Moisture, dust, or debris (top and bottom)

Ground wires/wiring Loose wires or ground strap connections

Fasteners Loose or missing screws or other hardware, especially fasteners used as connections to ground

Power source Faulty wiring, especially AC outlet

Keyboard Cuts or cracks in keyboard membrane

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

Loose connection Strain reliefs out of place

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

Faulty wiring Wires pinched or in vulnerable position

planes on PCBs

Circuit not dedicated to system (Power source problems can cause static discharge, resetting problems, and noise.)

Illegible labels

LCD display filter Scratched or opaque display filter (transparent component of keyboard bezel)

Battery pack Cracked, swollen, or leaky battery pack enclosure

Debris on battery pack electrical contacts

SD card Cracked SD card

Broken gold contacts

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Event logging

Setting Up event logging

The MAC 1600 system can be set up to create an Event Log in XML format that contains system errors, warnings, and informational messages. To configure the device for the level of severity of messages written to the Event Log, follow these steps.

1. Power on the MAC 1600 system by pressing the Power button.

2. From the Main Menu, press F5 to select System Configuration.

3. Press F6 to select More.

4. Press F6 to select More again.

5. Press F5 to select Service Setup.

Troubleshooting: Event logging

A window opens prompting you to enter the Service password.

6. Type prod and press F6 to select OK.

NOTE

If the keyboard does not include the letters prod, type 7763 and press F6

select OK.

The following window opens.

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

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8. Enable or disable event logging:

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

10. Press F6 to select Save.

Exporting the event log

1. Repeat steps 1-7 in “Setting Up event logging”.

2. Insert an SD card in SD card slot in back panel as shown in the following figure

Troubleshooting: Event logging

 Check the Key Event Logging check box to enable writing to the Event Log,

 clear the Key Event Logging check box to disable writing to the Event Log.

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

 Select Wa rn in g to log errors and warnings to the Event Log.

 Select Information to log errors, warnings, and information messages to the

Event Log.

(with gold

contacts up).

3. Press F1 to select Export Log Files.

The current Event Log file, log_0.log, is copied to a log directory

the SD card.

NOTE

The log file can be accessed by inserting the SD card in an SD card reader that is connected to a computer with a Windows operating system and a text editor like Notepad or Wo rd Pa d . If the Event Log is requested by

Service for troubleshooting an issue, the file can be sent as an email

GE attachment.

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Troubleshooting: Performing diagnostic tests

Performing diagnostic tests

Verify that the MAC 1600 resting ECG analysis system operates properly by running the diagnostic tests. These tests check the operation of the display screen, speaker, keyboard, thermal writer, battery, and communications. These diagnostic tests are a useful tools for troubleshooting problems and can be useful as a part of system checkout procedures.

Accessing the system diagnostics function

The System Diagnostics menu can be used to perform functional diagnostic tests. Access the System Diagnostics menu as follows.

1. Power on the MAC 1600 system by pressing the Power button.

2. From the Main Menu, press F5 to select System Configuration.

3. Press F6 to select More.

4. Press F6 to select More again.

5. Press F5 to select Service Setup.

A window opens prompting you to enter the Service password.

6. Type prod and press F6 to select OK.

NOTE

If the keyboard does not include the letters prod, type 7763 and press

to select OK.

The following window opens.

7. Move the focus to the System Diagnostics button and press the Enter key to select.

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