Welch Allyn CP-50 Service manual

CP 50 and CP 50 Plus 12-lead resting electrocardiograph

Service Manual

ii Welch Allyn CP 50 and CP 50 Plus 12-lead resting electrocardiograph

EC REP

Copyright 2009 Welch Allyn. 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. CP 50 and CP 50 Plus are trademarks of Welch
Allyn, Inc.

Software in this product is copyright Welch Allyn 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

Caution! Changes or modifications not expressly approved by Welch Allyn could void the purchaser’s
authority to operate the equipment.

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

European Customer Care [phone] United Kingdom [phone]

Germany [phone] France [phone]

Brazil [phone] China [phone]

Mexico [phone] Netherlands [phone]

Colombia [phone] Sweden [phone]

Malaysia [phone] Australia [phone]

Manual Material No. CP50-013

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

Service module replacement instructions Contents i

Contents

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

Purpose of this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Service policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

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

General Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Warnings related to the environment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Warnings related to accessories and other equipment . . . . . . . . . . . . . . . . . 3

Warnings related to using the electrocardiograph . . . . . . . . . . . . . . . . . . . . . 4

General Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Electrostatic discharge (ESD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2 - Export and import process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3 - Update process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4 - Upgrade process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5 - Performing a full-functional test . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6 - Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

ii Contents Welch Allyn CP 50 and CP 50 Plus 12-lead resting electrocardiograph

1

1

Safety Summary

All service technicians of the electrocardiograph must read this safety summary and all
warning and caution statements in the manual.

Any internal part(s) replacement or assembly and reassembly must be performed by
qualified service personnel with an understanding of technical English. When a service
part is ordered, verbal confirmation of these qualifications will be recorded before the
sale.

Purpose of this manual

The purpose of this manual is to assist with some common troubleshooting scenarios you
may encounter and to explain the export and import, update, and upgrade process.

Service policy

All repairs on products under warranty must be performed by Welch Allyn or by a service
provider authorized by Welch Allyn. Unauthorized repairs will void the warranty. In
addition, whether or not covered under warranty, any product repair should be performed
exclusively by Welch Allyn or by a service provider that has been authorized by Welch
Allyn.

If the product fails to function properly—or if you need assistance, service, or spare
parts—contact the nearest Welch Allyn Technical Support Center.

Before contacting Welch Allyn, try to duplicate the problem, and check all accessories to
ensure that they are not causing the problem. When calling, please be prepared to
provide:

• Product name, model number, and serial number of your product.

• Complete description of the problem.

• Complete name, address and phone number of your facility.

• For out-of-warranty repairs or spare parts orders, a purchase order (or credit card)
number.

• For parts orders, the required spare or replacement part numbers.

If your product requires warranty, extended warranty, or non-warranty repair service,
please call first the nearest Welch Allyn Technical Support Center. A representative will
assist you troubleshooting the problem and will make every effort to solve it over the
phone, avoiding potential unnecessary return of your product.

In case a return cannot be avoided, the representative will record all necessary
information and will provide a Return Material Authorization (RMA) number, as well as the

2 Safety Summary Welch Allyn CP 50 and CP 50 Plus 12-lead resting electrocardiograph machine

appropriate return address. An RMA number must be obtained prior to any return.

If you have to return your product for service, follow these recommended packing
instructions:

• Remove all hoses, cables, sensors, power cords, and other accessories (as
appropriate) before packing, unless you suspect they are associated with the
problem.

• Wherever possible use the original shipping carton and packing materials.

• Include a packing list and the Welch Allyn Return Material Authorization (RMA)
number.

It is recommended that all returned goods be insured. Claims for loss or damage to the
product must be initiated by the sender.

Symbols

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

Caution Indicates conditions that could damage
equipment or other property.

General Warnings

Warnings 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: mixtures containing air, oxygen, or nitrous
oxide.

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

Service manual Safety Summary 3

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.

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 might
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. In the case
of a USB printer, the printer (non-medical electrical
equipment) shall be situated outside the patient
environment (reference IEC 60601-1-1). The printer used
should be approved to the appropriate safety standard
for non-medical electrical equipment (IEC 60950, or its
national variants), and use of an isolation transformer is
recommended. If there is a requirement for the printer
to be situated within the patient environment it is the
responsibility of the user to ensure that the system
provides a level of safety in compliance with IEC 60601-1
and 60601-1-1.

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