Philips M1310 Service Manual

0 (0)

Series 50 T (M1310A)

Fetal Telemetry System

S E R V I C E G U I D E

M1310-9000B

Printed in Germany February 2002

Edition 1, A.00.01

Notice

Philips makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Philips shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance or use of this material.

The information contained in this document is subject to change without notice.

Philips assumes no responsibility for the use or reliability of its software on equipment that is not furnished by Philips.

Responsibility of the Manufacturer

Philips only considers itself responsible for any effects on safety, reliability and performance of the equipment if:

•assembly operations, extensions, re-adjustments, modifications or repairs are carried out by persons authorized by Philips, and

•the electrical installation of the relevant room complies with national standards, and

•the instrument is used in accordance with the Instructions for Use or User’s Guide.

Important

United States federal law restricts this device to sale by or on the order of a physician.

This device is not intended for home use.

Warning

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

Printing History

M1310-9000A	April 1994
M1310-9000B	February 2002

About this Manual

The manual is intended for personnel involved in the service and repair of the M1310 Telemetry System.It enables you to diagnose and repair problems with the minimum of inconvenience to the customer.

The philosophy for on-site diagnosis and repair of the M1310A Telemetry System can be summarized as follows:

•General Repair Strategy

•On-site repair for standard assemblies.

•Bench repair for RF-repair.

The recommended repair method is replacement of assemblies.

Every 12 months, you must carry out a series of preventive maintenance tasks and performance assurance tests. Details can be found in Chapter 10, “Preventive Maintenance, Care and Cleaning”.

For an overview of the system, and how to set it up, please refer to the Instructions for Use.

Conventional current technical terms are used throughout the manual, and familiarity with these terms is assumed.

The following conventions for cautions and warnings are used in this guide:

Note— A note calls attention to an important point in the text.

Warning

A warning calls attention to a condition or possible situation that could cause injury to the user and/or patient.

Caution

A caution calls attention to a condition or possible situation that could damage or destroy the product or the user’s work.

2002 Philips Medizinsysteme GmbH

All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright holder.

Contents

1.Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Safety Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Patient Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Protective Earth. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Maximum Input/Output Voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Telemetry System (Receiver and Transmitter) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Dimensions and Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Channels and Frequencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Antenna. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Input Sensitivity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Output Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Image Rejection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Self-Test Facilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Transducers and Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 External Blue Toco Transducers (M1355A) or (M1355A Opt. C03) . . . . . . . . . . . . . . . . . . . . . . . 8 Blue Ultrasound Transducer (M1356A) or (M1356 Opt. C03) . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 DECG Transducer (M1357A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 DECG/MECG Patient Module (M1364A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

IUP Quartz Transducer (1290C #J05) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 IUP Pressure Transducer (CPJ840J5). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Remote Event Marker (15249A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.Tests and Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Testing the Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Testing the Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Testing the Parameter Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Series 50 Family . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 8040A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 8041A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Solving General Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 No LEDs Lit on Receiver (continued overleaf) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Not all Receiver LEDs are Lit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Yellow LED Remains Lit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Transmission INOP Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Contents

Transmission Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	23
Transducer Mode Not Detected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	24
Cardio Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	25
TOCO Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	26
FMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	27
FMP Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	27
Event Marker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	29
Nurse Call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	30

5.Interfacing to a Fetal Monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

6.Using the Service Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Running the Service Software Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Using the Service Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

7.Replacing Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Ordering Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	39
Service Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	40
Lists of Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	40
Transmitter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	40
Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	42
Dismantling the Transmitter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	46
Transmitter Processor Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	47
Transmitter VCXO. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	50
Dismantling the Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	51
Power Supply Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	53
Processor Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	54
RF Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	55
Receiver VCXO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	56
RF Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	57
Display Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	57
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	58

8.RF Bench Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 What You Need . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Transmitter VCXO Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Receiver Preamplifier Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 Receiver Assembly Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Receiver VCXO Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

9.Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Contents

Transmitter Functional Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69

US Gating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69

US Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69

US Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69

ECG Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70

ECG Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70

Dynamic Compression Circuitry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70

FMP Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70

Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71

Toco Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71

Toco Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71

Toco A/D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71

FSK Generator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71

Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72

Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72

Service Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72

EEPROM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73

Japan ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73

VCXO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73

Receiver Functional Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74

Input Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74

RF Preamp M1406A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74

RF Receiver M1402A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

US Bandpass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

ECG Bandpass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

FSK Bandpass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

FSK Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

Toco D/A Converter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76

EEPROM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76

Service Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76

Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76

Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76

10.Preventive Maintenance, Care and Cleaning. . . . . . . . . . . . . . . . . . . . . . . . 77

Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77 Mechanical Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77 Safety Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77 Performance Assurance Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77 Care and Cleaning of the Telemetry System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78

11.Channels and Frequencies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

VCXO Operation Frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79 Austria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79 Australia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79 Belgium . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80 Canada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80 Denmark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81 Eastern European Countries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82 Finland. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82

Contents

vii

France . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Germany . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Italy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Japan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Luxembourg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Netherlands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

New Zealand. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Norway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Service USA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Singapore. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Spain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Sweden . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Switzerland . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

UK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

USA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

viii

Contents

List of Figures

Figure 1 Troubleshooting: No LED’s Lit on Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 Figure 1 Troubleshooting: No LED’s Lit on Receiver (continued from previous page). . . . . . .20 Figure 2 Troubleshooting Receiver LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 Figure 3 Troubleshooting: Yellow LED stays on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 Figure 4 Troubleshooting: Transmission INOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 Figure 5 Troubleshooting: Transmission Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 Figure 6 Troubleshooting: Transducer not detected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Figure 7 Troubleshooting: Cardio Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 Figure 8 Troubleshooting: TOCO Channel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 Figure 9 Troubleshooting: FMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 Figure 10 FMP Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Figure 11 Troubleshooting: Nurse Call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 Figure 12 Cable assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 Figure 13 Transmitter Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41 Figure 14 Receiver Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43 Figure 15 Receiver Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45 Figure 16 Transmitter VCXO Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60 Figure 17 FSK Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61 Figure 18 RF Output Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Figure 19 RF Modulation Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63 Figure 20 Receiver Preamplifier Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64 Figure 21 Receiver Assembly Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66 Figure 22 Receiver VCXO Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67

List of Figures

x	List of Figures

1 Safety

Safety Symbols

Read this information before setting up, using or servicing your Series 50 T

Telemetry System.

FCC WARNING

This equipment generates, uses and radiates radio-frequency energy, and if it is not installed and used in accordance with this manual, may cause interference to radio communications.

Operation of this equipment in a residential area may cause interference, in which case the users, at their own expense, must take whatever measures may be required to correct the interference.

This symbol indicates that you should consult the Instructions For Use, and particularly any warning messages.

Equipotential Terminal

This symbol identifies terminals which are connected together, bringing various equipment or parts of a system to the same potential. This is not necessarily earth potential. The value of potentials of earth may be indicated adjacent to the symbol.

Protective Earth Terminal

This symbol identifies the terminal for connection to an external protective earth system.

Battery [ 9

This symbol identifies the transmitter battery holder.

It takes three 1.5 V batteries (AA size, LR6 type).

Three types of battery can be used in the transmitter:

•Alkaline

•NiCd (rechargeable)

•NiMH (rechargeable).

Caution

Remove the batteries if you do not intend to use the Transmitter for a long period of time, to avoid damage from leakage.

Chapter 1 - Safety

Patient Safety

The Telemetry System should only be used by, or under the direct supervision of, a licensed physician or other health care parctitioner who is trained in the use of fetal heart rate monitors and in the interpretation of fetal heart rate traces. US federal law restricts this device to sale by, or on the order of, a physician.

The Telemetry Receiver is a Protection Class 1, Type B instrument. It is

designed to fulfill safety requirements according to IEC 60601-1, UL 544 and CSAC22.2 No.601.1-M90.

The telemetry transmitter is a battery operated device, applied parts (patient

connectors) are Type CF

Environment

Use the system in an environment which is reasonably free from vibration, dust, corrosive or explosive gases, extremes of temperature and humidity. It operates within specifications at ambient temperatures between 0 and +45°C. Ambient temperatures that exceed these limits can affect the accuracy of the system, the transmitter radio frequency transmission, and can damage the components and circuits.

The system (not including transducers1) can be stored at ambient temperatures between -40°C and +75°C.

The blue Toco and Ultrasound transducers are water-tight to a depth of 50 cm (19.7 inches).

Warning

Do not use brown transducers to monitor patients under water. Ultrasound and Toco transducers that are colored blue are watertight and comply with IEC 529 (IP68).

You can immerse the BLUE Ultrasound and Toco tranducers in water ONLY when connected to the telemetry transmitter. NEVER connect blue transducers directly to the fetal monitor when they are immersed in water, or likely to come in contact with water.

NEVER immerse the telemetry transmitter in water or other liquids such as cleaning solutions.

1. Transducers can be stored at temperatures between -40°C and +60°C (-40°F to +140°F).

Chapter 1 - Safety

Protective Earth

To protect hospital personnel and the patient, the cabinet must be grounded. Accordingly, the receiver is equipped with a 3-wire power cable which grounds it to the power line ground when plugged into an appropriate 3-wire receptacle. Do not use a 3-wire to 2-wire adapter with the receiver. Any interruption of the protective earth grounding will cause a potential shock hazard that could result in serious personal injury.

Whenever it is likely that the protection has been impaired, the receiver must be made inoperative and be secured against any unintended operation.

Warning

Check each time before use that the Telemetry System is in perfect working order and the receiver is properly grounded.

The patient cable must be positioned so that it does not come into contact with any other electrical equipment.

Before operation, make sure that the receiver is free from condensation. This can form when equipment is moved from one building to another, and is exposed to moisture and differences in temperature.

Warning

Possible explosion hazard if used in the presence of flammable anesthetics.

Chapter 1 - Safety

Maximum Input/Output Voltages

Receiver (Rear View)

Transmitter

1.Service Socket

Maximum voltage of ±12V.

2.Socket to Fetal Monitor Maximum voltage of ±12V.

3.Power Input Socket 100-120V ~ or 220-240V ~

4.Event Marker/Service Socket Maximum Voltage of +5V.

5.Toco Socket

Maximum Voltage of +5V.

6.Cardio Socket

Maximum Voltage of +5V.

Chapter 1 - Safety

Technical Specifications

Telemetry System (Receiver and Transmitter)

Power Requirements

The Telemetry System is set for the correct voltage at the factory, but before you connect power, ensure that the voltage switch is in the correct position for your country.

Operating Voltage:	100V - 120V~ or 220V - 240V (±10%).
Line Frequency:	50 to 60Hz.
Power Consumption:	19VA max.
Battery Type:	3 x 1.5V (AA size).

Environment

The Telemetry System should be used in an environment which is reasonably free from vibration, dust, corrosive or explosive gases, extremes of temperature and humidity. It operates within specifications at ambient temperatures between 0 and 45°C . Ambient temperatures which exceed these limits can affect the accuracy of the Telemetry System, the Transmitter radio frequency transmission, and cause damage to the components and circuits.

	Operating Temp:	0 to +45°C (32°F to 113°F).
	Storage Temp1:	-40 to +75°C (-40°F to 167°F).
	Relative Humidity:	5 to 95%.
Dimensions and Weight
Receiver	Height:	50mm (2in).
	Width:	425mm (16.7in).
	Depth:	392mm (15.4in).
	Weight:	6.5kg (14.3 lb).
Transmitter	Height:	122mm (4.8 in).
	Width:	85mm (3.3in).
	Depth:	40mm (1.6in).
	Weight:	200g (8 oz).

(without transducers and batteries).

1.Excludes transducers. Transducers can be stored at temperatures between -40°C and +60°C (-40°F to +140°F).

Chapter 2 - Technical Specifications

Telemetry System (Receiver and Transmitter)

Controls and Indicators

Receiver - Controls and Indicators

Description	Type	Color

Power On/Off Switch	Push Button

Power On Light	LED	Green

Nurse Call Acknowledge/Volume Button	Push Button

Nurse Call Light	LED	Yellow

Transmission INOP Light	LED	Yellow

Battery Low Light	LED	Yellow

Error Light	LED	Red

Transmitter - Controls and Indicators

Description	Type	Color

Power On/Off Switch	Slide Switch

Power On Light	LED	Green

Nurse Call	Push Button

Error Light	LED	Red

Channels and Frequencies

Over 160 different channels in the UHF Band (430-470 MHz) with 25 kHz/ 12.5 kHz channel spacing available. (See Chapter 11 for a list of the channels and frequencies available.)

Antenna	Receiver
	BNC Female input connector (standard 50 Ohms input). For standalone or
	connection to an antenna system.
	Transmitter
	Built-in Antenna in US and DECG transducer cables.
Inputs	Receiver
	•	Equipotential Grounding Point.
	•	Service Socket.

Chapter 2 - Technical Specifications

Telemetry System (Receiver and Transmitter)

Transmitter

•Cardio socket for M1356A ultrasound transducer or the M1357A/ M1364A DECG transducer.

•Toco socket for the M1355A Toco transducer or an IUP Transducer (CPJ840J5).

•Remote Event Marker and Service Socket.

Outputs

Receiver

•25 pin RS232 Socket for connecting the Fetal Monitor.

Input Sensitivity	-118dBM
Output Power	Transmitter
	4 mW (USA)
	2 mW (Europe)
	1 mW (Japan)
Image Rejection	>80 dB
Self-Test Facilities	Self-test facilities include:
	• Receiver Self Test: Tests the Receiver LF Part.
	• Transmitter Self Test: Tests the Transmitter LF Part.
	• Parameter Test: With the appropriate transducer connected to the
	Transmitter, the monitoring mode (ultrasound/DECG or Toco/IUP) is
	tested from the Transmitter via Receiver to the connected Fetal
	Monitor.

Chapter 2 - Technical Specifications

Transducers and Cables

There are two types of Toco, Ultrasound and DECG Transducers, the Standard Series 50 and Telemetry Transducers. The Standard Transducers have a 2.5m/8ft 2in ventilated cable and the Telemetry Transducers have a 70cm/28in ventilated cable.

Both types of Toco and Ultrasound Transducers are colored blue and are watertight complying with IEC 529 (IP68)

External Blue Toco Transducers (M1355A) or (M1355A Opt. C03)

System:

Passive Straingauge.

Dynamic Range: 0 to 12N (overload protected).

Weight:

180g (6.3oz).

Cable Length: 2.5m (8ft 2in) or 70cm (28in) for Option C03.

Water-tight:

To a depth of 0.5 meters.

Blue Ultrasound Transducer (M1356A) or (M1356 Opt. C03)

System:	Pulsed Doppler.
Oscillator Frequency:	998.4kHz.
Weight:	185g (6.5oz).
Cable Length:	2.5m (8ft 2in) or 70cm (28in) for Option C03.
Size:	75mm (2.95in) diameter.
Water-tight:	To a depth of 0.5 meters.

Warning

Under no circumstances should the transducer be immersed in water when connected to the Fetal Monitor.

Caution

Blue Toco Transducers have a ventilated cable. As liquid can enter this cable through capillary action, extra care should be taken not to get the connector wet.

Chapter 2 - Technical Specifications

IUP Quartz Transducer (1290C #J05)

DECG Transducer (M1357A)

Input Impedance:	>10M (di_erential, dc to 50/60Hz).
CMRR:	>110dB (with patient cable, 51.5k/0.047_F
	imbalance atline frequency).
Noise:	<4_Vp (referred to input with 25k).
Contact Potential Tolerance:_500mV.
Input Voltage Range:	20_Vp to 3mVp.
Patient Leakage Current:	<10_Arms @ 120V/60Hz.
Patient Auxiliary Current:	<0.1_A (dc).
Dielectric Strength:	2000Vrms (spark-gap protected).
Weight:	185g (6.5oz).
Cable Length:	2.5m (8ft 2in) or 70cm (28in) for Option C03.

DECG/MECG Patient Module (M1364A)

The patient module has a7-pin ECG connector into which you can plug either DECG cable (M1362A or M1362B) or MECG cable.

Overall length:	2706mm (+30, -100mm)
Length of free cable:	2618mm (+30, -100mm)
Weight:	120 grams
Size:	88x42x30mm
Socket:	DECG or MECG connection

A short cable version of the M1364A patient module with a 70 cm (28 inch) cable is orderable as part number M1364-60003.

IUP Quartz Transducer (1290C #J05)

Dynamic Range:	-50 to 300mmHg.
Sensitivity:	5_V/V/mmHg.
Non-linearity:	whichever is greater:
	±1% of the reading OR
	±1mmHg.
Volume Displacement:	0.2mm3/100mmHg.
Weight:	180g (6.3oz).
Cable Length:	3m (9ft 10in).
Length:	37mm (1.5in).
Height:	21.7mm (0.9in).
Operating Temp:	15 to 40_C.

Chapter 2 - Technical Specifications

IUP Quartz Transducer (1290C #J05)

IUP Pressure Transducer (CPJ840J5)

Pressure range:	-20 to + 300 mm Hg
Max. overpressure:	10,000 mm Hg
Sensitivity:	50 V/V/mm Hg
Resonance frequency:	300 Hz typical (transducer and dome)
Max. electrical excitation:	15 V DC or AC
Bridge resistance:	1000 Ohms (input and output)
Non-linearity and hysteresis:	max. 0.5% of full scale
Zero balance:	max. 0.15 mm Hg/°C
Operating temperature range:+10 to +50°C
Storage temperature range:	-20 to +70°C
Isolation resistance:	min. 1000 MOhms
Leakage current:	max.1.5 A at 250V, 50 Hz
Weight:	24 grams (without cable)
Connector:	Equipment specified
Remote Event Marker (15249A)
Length:	2.8m (9ft 2in).
Weight:	75g (2.65oz).

Chapter 2 - Technical Specifications

Tests and Error Messages

Testing the Receiver

To run the receiver self test:

1.Switch on the fetal monitor and its recorder.

2.Press the Power On/Off button to switch the receiver on.

3.When you switch on:

•The receiver On light (A) comes on.

•The nurse call light (B) and the battery low light (D) are lit for one second.

•The transmission INOP light (C) lights and stays lit until the transmitter is switched on.

•The telemetry lamp indicator on the fetal monitor lights, indicating telemetry monitoring mode.

•TELE is annotated on the fetal trace.

Chapter 3 - Tests and Error Messages

Testing the Transmitter

1. Slide back the battery cover.

2.Switch on the transmitter. The green On/Off light (A) comes on showing the transmitter is on.

3.Check the red light (B) situated behind the middle battery. If:

•the red light is lit for a few seconds and then goes out, the self test is successfully complete.

•the red light blinks, or remains on after three seconds, change the batteries. If the fault continues, there is a hardware error. See troubleshooting flowcharts in Chapter 4.

Chapter 3 - Tests and Error Messages

Testing the Parameter Signals

The parameter test checks the signal path to and from the transducer sockets, but not the transducers themselves.

1.Switch on the monitor, the recorder and the telemetry receiver.

2.Connect the appropriate transducer to each socket on the transmitter.

3.Standing within view of the monitor, press the Nurse Call Button on the transmitter and switch on the transmitter simultaneously. The test runs while the Nurse Call is pressed.

Signal	Correct Monitor Response

US	125 is displayed and printed.
	Signal Quality Indicator is green.
	Fetal heartbeat is heard from the loudspeaker.

Toco	A triangle signal with an amplitude of 40 units is
	displayed and printed.
	Each cycle lasts for 12 seconds.

DECG	150 is displayed and printed
	Signal Quality Indicator is green.
	Fetal heartbeat is heard from the loudspeaker.

If the response is different, see troubleshooting flowcharts, Chapter 4.

Chapter 3 - Tests and Error Messages

Error Messages

The following error messages are directly related to telemetry and appear on the fetal monitor. Refer to the Instructions for Use provided with your monitor for error messages not related to telemetry monitoring.

Series 50 Family

Message	Display	Cause	Solution

Err 9	US Toco	Invalid telemetry mode.	Check the cable from the telemetry
			receiver and, if necessary, replace it.

Err 14	US Toco	Incorrect transducer	Check that the transducer is
		connected to transmitter.	compatible with Series 50T Fetal
			Telemetry System.

Err 16	US Toco	Transducers are	Disconnect the transducers from
		connected to the front	the monitor or switch off the
		panel of the monitor.	telemetry receiver.

8040A*

Message	Display	Cause	Solution

Err 16	US Toco	Transducers are	Disconnect the transducers from the monitor or
		connected to the front	switch off the telemetry receiver.
		panel of the monitor.

*. No longer available.

Chapter 3 - Tests and Error Messages

Error Messages

8041A*

Message	Display	Cause	Solution

Signal	Indicator	Invalid telemetry mode.	Check the cable from the telemetry receiver and,
indicator	Panel		if necessary, replace it.
lamps
flashing
		Incorrect transducer	Check that the transducer is compatible with
		connected into	Series 50T Fetal Telemetry System.
		transmitter. (Only
		Ultrasound and Toco
		transducers can be used).
		Transducers are	Disconnect the transducers from the monitor or
		connected to the front	switch off the telemetry receiver.
		panel of the monitor.

*. No longer available

Chapter 3 - Tests and Error Messages

Error Messages

Chapter 3 - Tests and Error Messages

4 Troubleshooting

Solving General Problems

Troubleshooting is based on the interpretation of the Receiver LED’s. This chapter describes common problems and their causes, and provides troubleshooting flowcharts and guidance for their solution.

Problem	Possible Causes	Solutions

All the lights on the	Fetal monitor is switched off.	Switch on fetal monitor.
receiver stay on when
the receiver is turned	Possible defect in the receiver, interface	Carry out the tests described in “Testing the
on.	cable or fetal monitor.	Receiver” on page 11.

The Telemetry	Incorrect interface connection between	Follow the instructions in Instructions for Use for
Indicator Lamp on the	the monitor and the receiver.	details on how to connect the monitor to the
fetal monitor does not		receiver.
fetal monitor does not
light when the monitor
and the receiver are	Faulty interface cable.	Replace interface cable.
switched on.

Receiver Power On	Power cable not plugged into the power	Plug in and switch on.
Light does not light	supply.
when the receiver is
switched on.	Fuses need replacing.	Replace fuses.

Transmission INOP	Receiver and transmitter do not have	Check channel number and the serial numbers
light on the receiver is	the same channel or serial number.	are the same on the receiver and the transmitter.
still lit when the
transmitter is switched	Batteries in the transmitter are	Change the batteries in the transmitter (refer to
on.	exhausted.	the Instructions for Use for details.)

Battery Low Light lit on	Power in batteries is low.	Change batteries.
receiver.

INOP transmission	Local Antenna:
lamp is lit after the	Antenna not connected correctly.	Check antenna is connecting correctly.
patient has moved a
short distance away	Remote Antenna System:	Test the antenna system by bringing the
form the receiver.	Antenna cable not connected correctly	transmitter close to the receiver. If the
	to receiver.	transmission is good, then the antenna system is
		not functioning properly.

Chapter 4 - Troubleshooting

Solving General Problems

	Typical Battery Operating Times at Room Temperature

	US + TOCO		DECG + TOCO		DECG + IUP

Battery Details	LIghtLowAfter OnComes	Operating Time	LightLowAfter OnComes	Operating Time	LightLowAfter OnComes	Operating Time
Battery Details
3 x 1.5V
Size: AA
Type: LR6

Alkaline (1.8 Ah)	180 min	40 hrs	100 min	16 hrs	80 min	14.5 hrs

NiCd (0.6 Ah)	10 min	12 hrs	6 min	5.5 hrs	5 min	4.5 hrs
Rechargeable

NiMH (1.2 Ah)	20 min	22 hrs	12 min	11 hrs	10 min	9 hrs
Rechargeable

Chapter 4 - Troubleshooting

Solving General Problems

No LEDs Lit on Receiver (continued overleaf)

Figure 1 Troubleshooting: No LED’s Lit on Receiver

Chapter 4 - Troubleshooting

Solving General Problems

Figure 1 Troubleshooting: No LED’s Lit on Receiver (continued from previous page)

Chapter 4 - Troubleshooting

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