Welch Allyn CP-100, CP-200 Service manual

CP 100 and CP 200™ 12-Lead
Resting Electrocardiograph

TM

CP 100TM 12- Lead Resting Electrocardiograph

CP 200

12- Lead Resting Electrocardiograph

Service Manual

ii Welch Allyn CP 100 and CP 200 Electrocardiograph

Copyright 2005, Welch Allyn, Inc. All rights are reserved. No one is permitted to reproduce or duplicate, in
any form, this manual or any part thereof without permission from Welch Allyn.

Caution: Federal US law restricts sale of the device identified in this manual to, or on the order of, a
licensed physician.

Welch Allyn assumes no responsibility for any injury, or for any illegal or improper use of the product, that
may result from failure to use this product in accordance with the instructions, cautions, warnings, or
indications for use published in this manual.

Welch Allyn is a registered trademark of Welch Allyn, Inc., and CP 200, CP100, and CardioPerfect are
trademarks of Welch Allyn, Inc.

SD is a trademark of Toshiba.

Software in this product is Copyright 2005, Welch Allyn, Inc., or its vendors. All rights are reserved. The
software is protected by United States of America copyright laws and international treaty provisions
applicable worldwide. Under such laws, the licensee is entitled to use the copy of the software
incorporated within this instrument as intended in the operation of the product in which it is embedded.
The software may not be copied, decompiled, reverse-engineered, disassembled or otherwise reduced to
human-perceivable form. This is not a sale of the software or any copy of the software; all right, title and
ownership of the software remains with Welch Allyn or its vendors.

For information about any Welch Allyn product, please call Welch Allyn Technical Support:

USA 1 800 535 6663

[phone]

Canada 1 800 561 8797 China [phone]

European Call Center [phone] France [phone]

Germany [phone] Japan [phone]

Latin America [phone] Netherlands [phone]

Singapore [phone] South Africa [phone]

United Kingdom [phone] Sweden [phone]

Australia [phone]

800 074 793

Part Number (manual only): 704340 Rev D

Welch Allyn
PO Box 220
Skaneateles Falls, NY 13153-0220

www.welchallyn.com

Printed in USA

0297

Contents

1 - Safety Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

iii

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Servicing the Electrocardiograph Safely . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

General Warnings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Electrostatic Discharge (ESD). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

General Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

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

Purpose and Scope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Service Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Warranty Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Non-Warranty Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Technical Support Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Returning Products. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Product Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Recommended Service Intervals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Controls, Indicators, and Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

“System Settings” Menu Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

About the Main Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Moving Through the Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Reviewing the Device Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

CP 100 and CP 200 Electrocardiograph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Service Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Entering the Service Info Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Print Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Battery Life Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Printer Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Export Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Import Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Delete Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Lead Off Threshold. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Service Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3 - Functional Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Functional Verification Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Full Functional Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

iv Contents Welch Allyn CP 100 and CP 200 Electrocardiograph

Operating/Non-Printing Mode Current Test . . . . . . . . . . . . . . . . . . . . . . . . . 30

Battery Accuracy Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Sleep/Standby Mode Current Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Charger Detect Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

LED Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

LCD Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Set Unit Initial Configuration/SD Slot Test . . . . . . . . . . . . . . . . . . . . . . . . . . 32

ECG Communication Test (ECG Input test and lead off) . . . . . . . . . . . . . . . 33

Spirometer Communication Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

USB Communications Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Beeper Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Keyboard Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Printer Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Dielectric Strength Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Hi-Pot Test Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Chassis, Earth and Patient Leakage Current Tests. . . . . . . . . . . . . . . . . . . . 39

Checklist and Test Results Report Form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

4 - Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Problem-Solving Suggestions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Service Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

5 - Disassembly and Repair Procedures . . . . . . . . . . . . . . . . . . . . . . . 47

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Screws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Torque Specs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Disassembly Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Opening the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Replacing the Printer Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Replacing the Paper Tray Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Replacing the Platen Roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Replacing the Printhead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Replacing the Stepper Motor and Gear Box. . . . . . . . . . . . . . . . . . . . . . . . . 57

Replacing the Battery or Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Replacing the Battery (DC) Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Replacing the Main Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Replacing the Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Replacing the IEC (AC input) Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Replacing the LCD Inverter and LCD Assembly (CP 200) . . . . . . . . . . . . . . 64

Replacing the Function Keypad Assembly (CP 200) . . . . . . . . . . . . . . . . . . . 65

Replacing the Keyboard Assembly (CP 200) . . . . . . . . . . . . . . . . . . . . . . . . 66

Replacing the LCD Assembly (CP 100) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Replacing the Keyboard Assembly (CP 100). . . . . . . . . . . . . . . . . . . . . . . . . 68

6 - Field Replaceable Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Field Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Service Manual CP 100 and CP 200 Electrocardiograph v

A - Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

B - EMC Guidance and Manufacturer’s Declarations . . . . . . . . . . . . . 79

C - Software Updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

D - Interconnect Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

CP 200 Interconnect Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

CP 100 Interconnect Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

vi Contents Welch Allyn CP 100 and CP 200 Electrocardiograph

1

1

Safety Summary

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Servicing the Electrocardiograph Safely . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 Safety Summary CP 100 and CP 200 Electrocardiograph

Introduction

The safety summary, and all additional specific warnings and cautions located throughout
the documentation, must be read and understood by all users of the CP 100 and CP 200
Electrocardiograph.

Symbols

The symbols illustrated on the following pages may appear on the electrocardiograph, the
packaging, the shipping container, or in this manual.

Documentation Symbols

WARNING Indicates conditions or practices that could lead to illness, injury, or
death.

Caution In the manual, indicates conditions or practices that could damage the
equipment or other property.

Caution On the product, means “Consult accompanying documentation.”

-20°C

EC REP

Shipping, Storing, and Environment Symbols

This end up Keep dry

Fragile Altitude limits

+49°C

Temperature limits Relative humidity limit

Certification Symbols

Meets essential requirements of European
Medical Device Directive 93/42/EEC

European Regulatory Manager
Welch Allyn LTD.
Navan Business Park
Dublin Road
Navan, County Meath, Republic of Ireland
Tel.: [phone]
Fax: [phone]

N344

Complies with applicable U.S. and Canadian
medical safety standards

Australian registered importer

Directions for Use Safety Summary 3

Operation Symbols

For details on the keys, see “Keyboard Functions” on page 14.

On/standby (off) Help

Navigation arrows Backspace

Enter Shift

Auto ECG Menu

Rhythm ECG Stop/Cancel

SD memory card slot Com port A

(for patient cable)

Alternating current Battery charge level

Dangerous voltage Direct current

Defibrulation-proof type CF applied parts

Ground equipotential
(while the electrocardiograph is safety-rated
“CF” for direct cardiac contact it is not
intended to be connected directly to the
patient’s heart; only surface contact with the
patient’s skin is intended).

Do not reuse. Sealed lead-acid battery

Type BF Defibrillator proof Recycle

Do not dispose of this product as unsorted
municipal waste. Prepare this product for
reuse or separate collection as specified by

T2.0A/250V

AC fuse replacement information

Directive 2002/96/EC of the European
Parliament and the Council of the European
Union on Waste Electronic and Electrical
Equipment (WEEE). If this product

is

contaminated, this directive does not apply.

For more specific disposal information, see
www.welchallyn.com/weee,
or contact Welch Allyn Customer Service at
[phone].

Additional Operation Symbols for CP 200

Spirometry Key OK

Spirometry port Com port B

(for USB cable)

4 Safety Summary CP 100 and CP 200 Electrocardiograph

Servicing the Electrocardiograph Safely

Before using or servicing the electrocardiograph, you must read and understand the
following safety-related information.

General Warnings

The following warning statements apply to electrocardiograph use in general. Warning
statements that apply specifically to particular procedures, such as connecting the patient
cable or performing an ECG test, appear in the corresponding sections of the manual.

Warning statements indicate conditions or practices that could lead to illness, injury, or
death.

Warnings Related to the Environment

WARNING To avoid a possible explosion, do not use the electrocardiograph in

the presence of flammable anesthetics.

WARNING When transporting the electrocardiograph on a cart, tuck the
patient cable away from the wheels so that it does not present a hazard.

WARNING Do not use the CP 100 and CP 200 Electrocardiograph in an MRI
suite or hyperbaric chamber.

WARNING Do not autoclave the CP 100 and CP 200 Electrocardiograph or
patient cable.

Warnings Related to Accessories and Other Equipment

WARNING For operator and patient safety, peripheral equipment and

accessories that can come in direct patient contact must be in compliance with
all appropriate safety, EMC, and regulatory requirements. See “EMC Guidance

and Manufacturer’s Declarations” on page 79

WARNING All signal input and output (I/O) connectors are intended for
connection of only devices complying with IEC 60601-1, or other IEC standards
(for example, IEC 60950), as appropriate to the device. Connecting additional
devices to the electrocardiograph may increase chassis or patient leakage
currents. To maintain operator and patient safety, consider the requirements of
IEC 60601-1-1. Measure the leakage currents to confirm that no electric shock
hazard exists.

WARNING The electrocardiograph has not been designed for use with high­frequency (HF) surgical equipment and does not protect against hazards to the
patient.

Directions for Use Safety Summary 5

Warnings Related to Using the Electrocardiograph

WARNING Avoid positioning any leads or cables so that they could easily trip

someone.

WARNING Satisfactory maintenance procedures must be implemented, or
equipment failure and health hazards may result.

Warnings Related to Repairing the Electrocardiograph

WARNING Only qualified service personnel should attempt to repair the

electrocardiograph. In case of a malfunction, call Technical Support and precisely
describe the problem. For phone numbers, see page ii.

WARNING While under warranty, the electrocardiograph must be serviced
only by a Welch Allyn service technician.

WARNING Electrostatic discharge (ESD) can damage or destroy electronic
components. Handle static-sensitive components only at static-safe
workstation.

WARNING Consider all electrical and electronic components of the monitor as
static-sensitive.

Electrostatic Discharge (ESD)

Electrostatic discharge is a sudden current flowing from a charged object to another
object or to ground. Electrostatic charges can accumulate on common items such as
foam drinking cups, cellophane tape, synthetic clothing, untreated foam packaging
material, and untreated plastic bags and work folders, to name only a few.

Electronic components and assemblies, if not properly protected against ESD, can be
permanently damaged or destroyed when near or in contact with electrostatically charged
objects. When you handle components or assemblies that are not in protective bags and
you are not sure whether they are static-sensitive, assume that they are static-sensitive
and handle them accordingly.

• Perform all service procedures in a static-protected environment. Always use
techniques and equipment designed to protect personnel and equipment from
electrostatic discharge.

• Remove static-sensitive components and assemblies from their static-shielding bags
only at static-safe workstations—a properly grounded table and grounded floor mat—
and only when you are wearing a grounded wrist strap (with a resistor of at least 1
megohm in series) or other grounding device.

6 Safety Summary CP 100 and CP 200 Electrocardiograph

• Use only grounded tools when inserting, adjusting, or removing static-sensitive
components and assemblies.

• Remove or insert static-sensitive components and assemblies only with monitor
power turned off.

• Insert and seal static-sensitive components and assemblies into their original static­shielding bags before removing them from static-protected areas.

Always test your ground strap, bench mat, conductive work surface, and ground cord
before removing components and assemblies from their protective bags and before
beginning any disassembly or assembly procedures.

General Cautions

The following caution statements apply to electrocardiograph use in general. Caution
statements that apply specifically to particular procedures, such as connecting the patient
cable or performing an ECG test, appear in the corresponding sections of the manual.

Caution statements indicate conditions or practices that could damage the equipment or
other property.

Caution When removing the electrocardiograph from storage, allow it to
thermally stabilize to surrounding environmental conditions before using it.

Caution To prevent possible damage to the keypad, do not use sharp or hard
objects to press keys. Only use fingertips.

Caution Do not expose the patient cable to strong ultra-violet radiation.

Caution Do not pull or stretch the patient cable. Doing so could result in

mechanical or electrical failures. Form the patient cable into a loose loop before
storing.

Caution Avoid positioning the patient cable where it might get pinched or
stepped on. If the cable’s impedance is altered, measurements might no longer
be accurate, and repair might be necessary.

Caution Using the equipotential terminal for anything but grounding purposes
may contribute to damage of the device.

Caution Use only parts and accessories supplied with the device and available
through Welch Allyn. The use of accessories other than those specified may
result in degraded performance of this device.

Caution Portable and mobile RF communications equipment can affect the
performance of the electrocardiograph.

Caution Other medical equipment—including but not limited to defibrillators,
ultrasound machines, pacemakers, and other stimulators—may be used
simultaneously with the electrocardiograph. However, such devices may disturb
the electrocardiograph signal.

7

2

Overview

Purpose and Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Service Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Product Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Recommended Service Intervals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Controls, Indicators, and Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

“System Settings” Menu Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

About the Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Moving Through the Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Reviewing the Device Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

CP 100 and CP 200 Electrocardiograph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

8 Overview Welch Allyn CP 100 and CP 200 Electrocardiograph

Purpose and Scope

The service manual is a reference for periodic preventive maintenance and corrective
service procedures for the Welch Allyn CP 100 and CP 200 Electrocardiograph.

Corrective service is supported to the level of field-replaceable units. This includes some
circuit-board assemblies and some subassemblies, case parts, and other parts. See “Field

Replaceable Parts” on page 69 for complete list of user-replaceable service parts.

Note

This guide provides troubleshooting information, assembly procedures, and instructions
for functional testing and performance verification. It is intended for use only by
technically qualified service personnel.

Repair and replacement of the main board is not supported. All service work on
the main board must be performed by certified and qualified service personnel at
an authorized Welch Allyn service center.

Caution No component-level repair of circuit boards and subassemblies is
supported. Use only the repair procedures described in this manual.

WARNING When performing a service procedure, follow the instructions
exactly as presented in this manual. Failure to do so could damage the monitor,
invalidate the product warranty, and lead to serious personal injury.

Service Options

Warranty Service

All repairs on products under warranty must be performed and/or approved by Welch
Allyn. Refer all warranty service to Welch Allyn Factory Service or another authorized
Welch Allyn Service Center. Obtain an RMA number for all returns to Welch Allyn Factory
Service – see Returning Products (page 9).

Caution Unauthorized repairs will void the product warranty.

Non-Warranty Service

Welch Allyn Factory Service and authorized Service Centers support non-warranty repairs.
Contact any Welch Allyn regional service center for pricing and service options.

Welch Allyn offers modular repair parts for sale to support non-warranty service. This
service must be performed only by qualified end-user biomedical/clinical engineers using
this service manual.

The Welch Allyn Electrocardiograph Service Information supports certain service
functions. For information about any Welch Allyn product, please call Welch Allyn

Technical Support: (page ii).

Service Manual CP 100 and CP 200 Electrocardiograph 9

Technical Support Services

Welch Allyn offers the following technical support services:

Telephone support
Loaner equipment
Service agreements
Replacement service parts
Factory Service

For information on any of these services, contact Welch Allyn at the numbers listed on

page ii

Returning Products

To return a product for service, contact Welch Allyn Technical Support and request a
Return Material Authorization (RMA) number.

Note

To ship the unit, please observe these packing guidelines:

Welch Allyn does not accept returned products without an RMA.

• When requesting an RMA, please have the following information available:

• Product name, model number, and serial number

• A complete return shipping address, including a contact name and phone

number; include any special shipping instructions

• A purchase-order number or credit-card number if the product is not covered by

warranty

• A full description of the problem or service request

• Remove from the package all hoses, connectors, cables, sensors, power cords,

and other ancillary products and equipment, except those items that might be
associated with the problem.

• Use the original shipping carton and packing materials, or as close an

approximation as possible.

• Include a packing list.

• Write the Welch Allyn RMA number with the Welch Allyn address on the outside

of the shipping carton.

United States federal regulations require that any unit received by Factory Service must
be free from blood-borne pathogens before processing. All incoming products are cleaned
as well as possible, but products that cannot be effectively cleaned cannot be accepted
for repair. Please thoroughly clean all organic residues from the product before shipment.
This will ensure safe receipt, processing and repair, and will help expedite the return of
your device.

10 Overview Welch Allyn CP 100 and CP 200 Electrocardiograph

Product Configurations

Model numbers for the configurations are as follows:

Model Number Description

CP 1 CP 100 Electrocardiograph

CP 1A CP 100 Electrocardiograph w/Interpretation

CP 2 CP 200 Electrocardiograph

CP 2A CP 200 Electrocardiograph w/Interpretation

CP 2S CP 200 Electrocardiograph w/Spirometry

CP 2AS CP 200 Electrocardiograph w/Interpretation & Spirometry

Recommended Service Intervals

Interval or Condition Action Recommended Procedure

Every 6 – 24 months (per
hospital protocols)

Battery does not hold a charge Check battery capacity

Unit has been dropped or
otherwise damaged

Unit malfunctioning Complete Functional test Functional Verification (page 29)

Unit does not pass Functional
Verification

Complete Functional test Functional Verification (page 29)

Battery Accuracy Test (page 31)

Replace battery

Complete Functional test Functional Verification (page 29)

Troubleshooting and repair followed by functional test

Return to authorized service center

Replacing the Battery or Fuse (page 58)

Troubleshooting (page 41)
Disassembly and Repair Procedures (page

47)
Functional Verification (page 29)

Returning Products (page 9)

Service Manual CP 100 and CP 200 Electrocardiograph 11

Controls, Indicators, and Connectors

This section describes the controls, indicators, and connectors that are part of the
electrocardiograph.

Figure 1. Top of CP 200 Electrocardiograph

Softkeys and functions keys
See Figure 10 on page 15.

Keyboard
See Figure 8 on page 14.

Figure 2. Top of CP 100 Electrocardiograph

Keyboard
See Figure 9 on page 14.

12 Overview Welch Allyn CP 100 and CP 200 Electrocardiograph

Figure 3. Back of Electrocardiograph

AC power inlet

Equipotential stud

AC fuses

Figure 4. Right Side of Electrocardiograph

Com port B

(for USB cable)

SD memory card

slot

(Not functional on CP 100)

Figure 5. Left Side of Electrocardiograph

Paper tray latch

Spirometry port

(Not functional on CP 100)

Reset

Button

Service Manual CP 100 and CP 200 Electrocardiograph 13

Figure 6. Front of CP 200 Electrocardiograph

Com port A

(for patient cable)

Figure 7. Front of CP 100 Electrocardiograph

Com port A

(for patient cable)

14 Overview Welch Allyn CP 100 and CP 200 Electrocardiograph

Keyboard Functions

Figure 8. Keyboard for CP 200 Electrocardiograph

On/Off

See “ Powering the
Electrocardiograph” in the
Directions of Use manual.

Green LED

Lights up when the
electrocardiograph is
connected to AC
power.

Ta b

Moves through the
data-entry fields.

Shift

Capitalizes letters.

Space

Enters a space.

Figure 9. Keyboard for CP 100 Electrocardiograph

Backspace

Deletes the character to the
left of the cursor.

Enter

See “Moving Through the Menus” on
page 18.

Menu

See “About the Main Menu”
on page 17.

Help

See the Directions For
Use manual.

Navigation arrows

See “Moving Through the

Menus” on page 18.

Green LED

Lights up when the
electrocardiograph is
connected to AC
power.

Ta b

Moves through the
data-entry fields.

Help

See the Directions
for Use manual.

Shift

Capitalizes letters.

On/Off

See “ Powering the
Electrocardiograph” in the
Directions of Use manual.

Space

Enters a space.

Stop/Cancel

Stops any current activity.
See “Moving Through the

Menus” on page 18.

Backspace

Deletes the character to the
left of the cursor.

Enter

See “Moving Through the

Menus” on page 18.

Menu

See “About the Main

Menu” on page 17.

Auto ECG

Begins Auto ECGs,
normal and stat.

Rhythm ECG

Begins a Rhythm ECG.
.

Navigation arrows

See “Moving Through the

Menus” on page 18.

Service Manual CP 100 and CP 200 Electrocardiograph 15

Figure 10. Softkeys and Function Keys for the CP 200 Electrocardiograph

Softkeys

These softkeys display text or images that
correspond to the unlabeled buttons below
them. The content changes from screen to
screen.

Softkey buttons

These buttons activate the functions displayed
above them. If a softkey is blank, pressing its

Auto ECG Spirometry Rhythm ECG Stop/Cancel OK

button has no effect.

Function Keys

Auto ECG

Begins Auto ECGs, normal and stat.

Spirometry

Begins spirometry tests.
See spirometry manual.

Rhythm ECG

Begins Rhythm ECGs.

Stop/Cancel

Stops any current activity.
See “Moving Through the Menus” on page 18.

OK

Accepts data that you have entered, or chooses a highlighted item.
See “Moving Through the Menus” on page 18.

16 Overview Welch Allyn CP 100 and CP 200 Electrocardiograph

“System Settings” Menu Tree

P 200 Menu Tree

System Settings

Device

Configuration

Set Date/Time
Language
Date Format
Time Format
Weight Unit
Height Unit
Power-Save
Device ID
Audio Beeper
Flow Unit
Pressure Unit
Temperature
Increase Display Contrast
Decrease Display Contrast
Contact Information
Previous Menu
* Applicable for spirometry only.

*

*

*

CP 100 Menu Tree

Device

Info

About
Print Settings
Enable Options
Upgrade Software
Service Info
Previous Menu

System Settings

Device

Administration

See “Managing Data” in the
Directions for Use manual.

Service Info

Print Log
Battery Life Test
Printer Test
Export Files
Import Files
Delete Files
Serial Number
Lead Off Thershold
Service Tests
LCD Test
Previous Menus

Device

Configuration

Set Date/Time
Language
Date Format
Time Format
Weight Unit
Height Unit
Power-Save
Device ID
Audio Beeper
Increase Contrast
Decrease Contrast
Contact Information
Previous Menu

Device

Info

About
Print Settings
Enable Options
Upgrade Software
Service Info
Previous Menu

Service Info

Print Log
Battery Life Test
Printer Test
Export Files
Import Files
Delete Files
Serial Number
Lead Off Thershold
Service Tests
Previous Menus

Service Manual CP 100 and CP 200 Electrocardiograph 17

About the Main Menu

The main menu appears when you press the Menu key .

Figure 11. Main Menu CP 200

Main Menu

1 Test Directory
2 Scheduled Patients
3 ECG Settings
4 Spirometry Settings
5 System Settings
6 Edit Medication List
7 Edit History List
0 Exit

Figure 12. Main Menu CP 100

Main Menu

1 ECG Settings
2 System Settings
0 Exit

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9:17AM Mar 16 05

Submenu Purpose Procedure

Test Directory View, change, print, or send saved tests. (CP

200 Only)

Scheduled Patients View the scheduled patients list, add

patients to the list, or delete patients from

See the Directions for Use manual on your
specific model.

See the Directions for Use manual on your
specific model.

the list. (CP 200 Only

ECG Settings Review or change ECG settings: Auto

Report format, Rhythm Report format, and

See the Directions for Use manual on your
specific model.

so on.

Spirometry Settings Review or change spirometry settings:

display settings, print settings, and so on. (CP

See the Directions for Use manual on your
specific model.

200 Only

System Settings Review or change system settings: device

configuration, device info, user setup, and

See the Directions for Use manual on your
specific model.

so on.

Edit Medication List Edit the list of medication choices available

to choose during patient data entry. (CP 200

See the Directions for Use manual on your
specific model.

Only

Edit History List Edit the list of clinical conditions available to

choose during patient data entry. (CP 200

See CP 200 Electrocardiograph Directions for
Use manual.

Only

18 Overview Welch Allyn CP 100 and CP 200 Electrocardiograph

Moving Through the Menus

Figure 13. CP 200 Standard Menu Figure 15. CP 200 Parent Menu With Submenu

ECG Setup : Edit Auto Report 1

1 Format

2 Interp Settings
3 Patient Data
0 Previous Menu

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Figure 14. CP 100 Standard Menu

Edit Auto Report

1 Format

2 Interp Settings
3 Patient Data
0 Previous Menu

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Edit Auto Report 1 : Format

1 Lead Arrangement
2 Rhythm Lead 1
3 Rhythm Lead 2
4 Rhythm Lead 3
5 Extended Measurements
6 Average Cycles
0 Previous Menu

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3x4
3x4 +1R
3x4 +3R
6x2

12x1

6x2 50 mm/s
6x2 10 Ext.
No Print

Figure 16. CP 100 Parent Menu with Submenu

Format

1 Lead Arrangement

2 Rhythm Lead 1
3 Rhythm Lead 2
4 Rhythm Lead 3
5 Extended Measurements
6 Average Cycles
0 Previous Menu

9:17AM Mar 16 05

3x4 +1R
3x4 +3R
6x2
12x1
6x2 50 mm/s
6x2 10 Ext.
No Print

Desired Actions Keys to Press

To move up or down a list or (keyboard or softkey arrows)

To open a standard menu (Figure 13)

or or

or item’s number or letter

To move from parent menu to submenu on same
screen (Figure 15)

To perform an action

or

To accept data
To check or uncheck a checkbox

To return to parent menu from submenu on same
screen (Figure 15) or

(To select the highlighted submenu
item.)

or

(To make no change.)

To move back through the menus or zero key

To move through data-entry fields

To return to the “Main Screen” from a standard menu
(Figure 13)

Note

Keyboard and softkey arrows work the same way.

Service Manual CP 100 and CP 200 Electrocardiograph 19

Reviewing the Device Information

1. Press the Menu key .

2. Choose System Settings > Device Info.

The following screen appears.

Figure 17. “Device Info” CP 200 Screen

System Setup : Device Info

1 About
2 Print Settings
3 Enable Options
4 Upgrade Software
5 Service Info
0 Previous Menu

9:17AM Mar 16 05

Figure 18. “Device Info” CP 100 Screen

Device Info

1 About
2 Print Settings
3 Enable Options
4 Upgrade Software
5 Service Info
0 Previous Menu

9:17AM Mar 16 05

3. Select the desired item:

Item Description

About Displays the following information about the electrocardiograph:

• serial number

• modules configured

• version numbers

Print Settings CP 200 = Prints your ECG, spirometry, and system settings as well as medication &

history lists.
CP 100 = Prints your ECG and system settings.

Enable Options Contact Technical Support. For phone numbers, see page ii.

Upgrade Software Contact Technical Support. For phone numbers, see page ii.

Service Info Accessible to service support only. See Service Menus (page 20)

20 Overview Welch Allyn CP 100 and CP 200 Electrocardiograph

CP 100 and CP 200 Electrocardiograph

Service Menus

Entering the Service Info Screen

This menu is password protected and only Welch Allyn Authorized Technician can access
the Service Menus,)

CP 200 Service Info Screen
Procedure Figure 19. CP 200 “User Login”

1. Power ON unit.

2. Press Menu key.

3. Choose System Setting> Device Info> Service Info

The “UserLogin” screen appears. See Figure 19.

UserLogin

9:17AM Mar 16 05

Use the “Tab” or “Arrow” keys to move the cursor from field to field.

Enter the following:
User ID: Service (case sensitive)
Password:normser (case sensitive)

4. Press “Done” using the softkey. Do not use the“Enter” key.

The “Service Info” screen appears see Figure 20

User ID

Password

Enter valid user ID and password

Change

Password

Cancel

Figure 20. CP 200 “Service Info” Screen

9:17AM Mar 16 05

Service Info

1.Print Log

2.Battery Life Test

3.Printer Test

4.Export Files

5.Import Files

6. Delete Files

7.Serial Number

8.Lead Off Thershold

9.Service Tests
A LCD Test

0.Previous Menus

Done

Service Manual CP 100 and CP 200 Electrocardiograph 21

CP 100 Service Info Screen
Procedure Figure 21. CP 100 “UserLogin” Screen

1. Power ON unit.

2. Press Menu key.

3. Choose System Setting > Device Info > Service Info

User Login

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The “UserLogin” screen appears. See Figure 21.

User ID

Use the “Arrow” keys to move the cursor from field to field.

Password

Enter the following:
User ID: Service (case sensitive)

Done

Password:normser (case sensitive)

4. Highlight “Done” using the down arrow key.

5. Press “Enter” key.

The “Service Info” screen appears. See Figure 22

Figure 22. CP 100 “Service Info” Screen

9:17AM Mar 16 05

Service Info

1. Print Log

2. Battery Life Test

3. Printer Test

4. Export Files

5. Import Files

6. Delete Files

7. Serial Number

7. Lead Off Thershold

8. Service Tests

0. Previous Menus

Print Log

Caution These printouts can be very long. Only use the printouts if necessary.
To stop the printouts press Stop/Cancel.

Function Description

Print Events: This prints all events stored in the unit in descending

order by date and time. Used for development of the
software. Has no Service value.

Print Errors: This prints any errors that occurred in the unit, in

descending order by date and time, during normal
operation. This can be valuable to use when the end­user says he/she has been having problems.

Print All: This prints the Print Events and Print Errors as

described above.

Figure 23. “Print Log” Screen

Print Log

1.Print Events

2.Print Errors

3.Print All

0.Previous Menus

9:17AM Mar 16 05

22 Overview Welch Allyn CP 100 and CP 200 Electrocardiograph

Battery Life Test

This displays the percentage of battery life remaining on the battery, based on the number
of charges it has incurred. This percentage approximates the life left in the battery based
on this information.

Caution Only reset when the battery has been replaced and charged for at
least 12hrs continuously.

Function Description

Reset Resets the battery life to 100%. This is used only

when the battery has been replaced

Reset Pages Resets page count for the number of prints made on

the printer. Should only be reset when print head has
been replaced.

Printer Test

Function Description

Figure 24. “Battery Life Test” Screen

9:17AM Mar 16 05

Battery Life Test

Battery Life Remaining: 99%

Reset

Reset
Pages

Figure 25. Printer Test” Screen

Exit

Test Page Prints a test page which repeats until the “Cancel”

button is pressed. Refer to Functional Verification test
for explanation. See Printer Test (page 35).

Ramp Test Prints a one page ramp test. Refer to Functional

Verification test for explanation. See Printer Test

(page 35).

Printer Test

Test Page

9:17AM Mar 16 05

Select a print test

Ramp

Page

Exit

Service Manual CP 100 and CP 200 Electrocardiograph 23

Export Files

Use the “Export Files” function when the Main PCB is replaced, to reinstall the
customer’s saved ECG information and spirometry (CP 200 Only) or the unit’s original
configuration after repair.

Caution The tests exported to the SD memory card contain patients’ medical
information and should be treated the same as any confidential medical
information.

Note

If you are performing all functions you only need one SD memory card. Use a
formatted blank SD memory card installed in the unit for each function.

Function Description

Export Log Files Exports the Event log to a SD memory card in a folder

called Log. Once complete, a message appears at
bottom of the screen stating if the export was
successful or not.

Export Audit Trail
(CP 200 ONLY)

Export Tests (CP 200
ONLY)

Export
Configuration Files:

Exports the audit information of the unit to a SD
memory card in a folder called Audit. Once complete
a message appears at bottom of screen stating if
export was successful or not.

Note: Audit information is available if Audit trail
is turned on in Device Administration. See the CP
200 Directions for Use manual

Exports all tests in the memory to a SD memory card
in a folder called Tests for importing after repair.

Exports the configuration of the unit (i.e. print
formats, patient data settings, logins, etc.) to a SD
memory card in a folder called Config for importing
after repair.

Figure 26. “Export Files” Screen

Export Files

1.Export Log Files

2.Export Audit Files

3.Export Tests

4.Export Configuration Files

0.Previous Menus

9:17AM Mar 16 05