Philips Avalon FM20 User manual

Service Guide
Avalon Fetal Monitor
FM20/FM30
Release J.3 with Software Revision J.3x.xx
Fetal Monitoring

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1Table of Contents
1Introduction 7
Who Should Read This Guide 7
What to Do Next 7
Repair Strategy 8
Manufacturer’s Information 8
Passwords 9
Safety Information 9
2Site Preparation 15
Introduction 15
Site Requirements 17
3Installation Instructions 25
Installation Checklist Fetal Monitor 25
Unpacking and Checking the Shipment Fetal Monitors 26
Mounting Instructions 28
Line Voltage Selection 29
Connecting the Monitor to AC Mains 29
Disconnecting the Monitor from AC Mains 30
Connecting the Monitor to Non-Medical Devices 30
Installing the Tympanic Thermometer 31
Before Using the Monitor 35
4Theory of Operation 39
Monitor Hardware Overview 39
Power Supply 40
Connector Block 40
Bus Master Board 40
Main CPU Board 40
I/O Boards 41
Fetal Recorder (Thermal Printer Unit) 41
LCD Display and Touchscreen 42
Noninvasive Blood Pressure Assembly 42
SpO2 Assembly 42
Input/Output Interface Boards 42
Transducer Hardware Overview 43
Transducer Types 43
Functional Description of the Transducer CPU 43
Toco Transducer Front-end 44
Ultrasound Transducer Front-end 44

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Toco+ Transducer Front-ends 44
Patient Module Front-ends 45
Avalon CTS Interface Cable (TMIF) 45
5Interfaces 47
LAN / RS232 Interface 48
Dual PS/2 Interface 48
MIB / RS232 Interface 48
Connection of USB Devices 49
Flexible Nurse Call Relay 50
6Connection to a Network 51
Network Infrastructure Requirements 51
Data Privacy and Network Security Requirements 52
Connection Indication Messages 52
7Testing and Maintenance 55
Introduction 55
Terminology and Definitions 55
Recommended Frequency 56
When to Perform Tests 56
Testing Sequence 58
Visual Inspection 59
Safety Tests 59
System Test 71
Preventive Maintenance Procedures 82
Performance Assurance Tests 83
Reporting of Test Results 87
Other Regular Tests 91
Battery Handling, Maintenance and Good Practices 99
After Installation, Testing, or Repair 104
8Troubleshooting 105
Who Should Perform Repairs 105
Replacement Level Supported 105
Checking Revision Information 106
Obtaining Replacement Parts 107
Troubleshooting Guide 107
9Parts 125
Monitor 125
Transducers 126
Patient Modules 127
Interface Cables 127
Mounting Hardware 128
Tympanic Thermometer Part Numbers 128

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Assembly and Kit Contents 129
10 Repair and Disassembly 139
Introduction 139
Serial Numbers 141
Top Cover Disassembly/Reassembly 141
Replacing the Display Assembly 150
Recorder Disassembly 158
Bottom Cover Disassembly/Reassembly 183
Transducer Disassembly/Reassembly 207
11 Upgrades 213
FM20/30 Upgrade Options 213
Installing Upgrade Options 215
Software and Firmware Upgrades 222
12 Specifications 223
Environmental Specifications 223
Physical Specifications 224
Interface Specification 226
Performance Specifications 227
Recorder Specifications 238
Manufacturer's Information 240
Trademark Acknowledgment 240
Regulatory and Standards Compliance 240
Environment 249
Monitoring After a Loss of Power 250
ESU, MRI and Defibrillation 250
Cardiac Pacemakers and Electrical Stimulators 250
Fast Transients/Bursts 250
Symbols on the System 250
Index 255

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1Introduction
This Service Guide contains technical details for the Avalon FM20 and FM30 fetal/maternal monitors.
It provides a technical foundation to support effective troubleshooting and repair. It is not a
comprehensive, in-depth explanation of the product architecture or technical implementation. It offers
enough information on the functions and operations of the monitoring systems, so that engineers who
repair them are better able to understand how they work. It covers the physiological measurements
and the monitor hardware that acquires and displays them.
The Avalon FM20/FM30 Fetal Monitor Service Guide supplements the maintenance and
troubleshooting procedures, carried out by the operator that are described in the Instructions for Use.
Refer to the Instructions for Use for maintenance and troubleshooting procedures that may be
performed during normal operation.
Only qualified and authorized service personnel should attempt to install the system, disassemble the
monitor, remove or replace any internal assemblies, or replace the transducer cable or belt buttons.
For detailed information concerning the configuration of the fetal monitor see the Configuration
guide.
Who Should Read This Guide
This guide is for biomedical engineers or technicians responsible for troubleshooting, repairing, and
maintaining Philips’ Avalon fetal monitors.
You must:
• understand English
• be familiar with standard medical equipment installation procedures
• be familiar with current conventional technical terms as used throughout this guide
What to Do Next
Familiarize yourself with the contents of this guide and the Instructions for Use before attempting to
service or repair the system.

1 Introduction
8
Repair Strategy
The Service Support Tool software helps you to determine whether a fault is a hardware or software
problem. The main replaceable parts are:
• unit exchange for the transducers
• replacement of
– the top cover assembly
– the bottom housing
– the power supply assembly
– the display assembly
– the recorder adapter board
– the paper drawer assembly
– the paper sensor assembly
– the stepper motor assembly
–theSpO
2 assembly
– the noninvasive blood pressure assembly
–themainCPUboard
– the bus master board
– the socket connector block
– the transducer cable
– the transducer belt button
See “Parts” on page 125 for part numbers, and “Repair and Disassembly” on page 139 for repair
details.
Repair or replacement of individual components on the boards is not supported, and should never be
attempted.
For tests that you are required to perform after repairs, refer to “When to Perform Tests” on page 56.
WARNING
Do not maintain or repair the device in patient vicinity.
Manufacturer’s Information
© Copyright 2003 - 2014. Koninklijke Philips Electronics N.V.
All Rights Reserved.
Philips Medizin Systeme Böblingen GmbH
Hewlett-Packard-Str. 2
71034 Böblingen, Germany

1 Introduction
9
Passwords
In order to access different modes within the monitor a password may be required. The passwords are
listed below.
Monitoring Mode: No password required
Configuration Mode: 71034
Demo Mode: 14432
Service Mode: 1345
Refer to “When to Perform Tests” on page 56 before making any changes to the monitor
configuration.
Safety Information
Warnings and Cautions
In this guide:
•Awarning alerts you to a potential serious outcome, adverse event or safety hazard. Failure to
observe a warning may result in death or serious injury to the user or patient.
•Acaution alerts you where special care is necessary for the safe and effective use of the product.
Failure to observe a caution may result in minor or moderate personal injury or damage to the
product or other property, and possibly in a remote risk of more serious injury.

1 Introduction
10
Electric Hazards
WARNING
Electric shock hazard: Do not open the monitor housing. Refer all servicing to qualified service
personnel.
• Always use the supplied power cord with the earthed mains plug to connect to an earthed AC
mains socket. Never adapt the mains plug from the fetal monitor to fit an unearthed AC mains
socket.
• Do not use AC mains extension cords or multiple portable socket-outlets.
• The protective earth conductor is required for EMC purposes. It has no protective function
against electric shock. Double and/or reinforced insulation protects this device against electric
shock.
• Do not use a device in the patient vicinity if it does not comply with IEC/EN 60601-1 A1: 2012.
The whole installation, including devices outside of the patient vicinity, must comply with IEC/
EN 60601-1 A1: 2012. Any non-medical device, including a PC running an OB TraceVue/
IntelliSpace Perinatal system, placed and operated in the patient's vicinity, must be powered via a
separating transformer (compliant with IEC/EN 60601-1 A1: 2012) that ensures mechanical
fixing of the power cords and covering of any unused power outlets.
• Do not connect any devices that are not supported as part of a system.
• Any non-medical device placed and operated in the patient’s vicinity must be powered via an
approved isolation transformer that ensures mechanical fixing of the power cords and covering of
any unused power outlets.
• Do not use USB devices with own power supplies unless an appropriate separation device is used
(either between USB interface and device or between device and power).
• Only the power cables provided with the system may be used. For reasons of safety, power (mains)
extension cables, or adapters shall not be used.
• Observe ESD (electrostatic discharge) precautions when working within the unit.
• The use of accessories, transducers, and cables other than those specified may result in increased
electromagnetic emissions, or decreased electromagnetic immunity of the device.
• The fetal/maternal monitor is NOT intended for use during defibrillation, electro-surgery, or
MRI. Remove all transducers, sensors, and accessories before performing electro-surgery,
defibrillation, or MRI, otherwise harm to the patient or the user can result.
• Do not touch the charging contacts for the cableless transducers at the Avalon base station while
you are touching the patient
Leakage currents: If several items of equipment used to monitor a patient are interconnected, the
resulting leakage current may exceed allowable limits.