Philips Fm2 Service Manual

List of Figures
List of Figuresxi
Figure 1 FM-2 Block Diagram of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 2 Error Log  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 3 System A/D Values  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 4 Diagnosing Malfunction - Initial Diagnosis . . . . . . . . . . . . . . . . . . . . . 32
Figure 5 Power Diagnosis - Power Supply or...

Chapter 1 - General Information1
1
General Information
Introduction
This guide tells you how to service and repair the monitor (M2922A). It 
describes the system hardware and software, tells you how to diagnose operating 
and servicing problems, and how to test the system.
As this monitor is intended to be installed by the customer, refer to the 
Instructions for Use for details of how to install the monitor.
The FM-2 Antepartum Fetal Monitor Service Guide supplements the 
maintenance and troubleshooting...

Repair Strategy
2Chapter 1 - General Information
Who Should Read This Guide
This guide is for any technical personnel servicing and repairing the FM-2 
monitor (M2922A).
Yo u  m u s t :
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 before attempting to service 
or repair the monitor.
Repair Strategy
Reading...

Warnings, Cautions, and Notes
Chapter 1 - General Information
3
Warnings, Cautions, and Notes
This guide uses three terms that are important for proper servicing of the 
monitor: Warning, Caution, and Note.
Warning
A warning calls your attention to an action or a possible situation that may 
result in injury or death to you or the patient.
Caution
A caution precedes an action that may result in damage to, or malfunction 
of the monitor. It indicates that special care is necessary for the safe and...

Symbols and Definitions
4Chapter 1 - General Information
Symbols and Definitions
Symbol DefinitionSymbolDefinition
Remote marker input 
connector symbol on 
monitorClass II equipment symbol 
(double insulation)
Drip-proof equipment 
classification on monitorType BF applied part 
symbol on monitor
Power input symbol on 
power supplyRefer to accompanying 
documents
Power supply connector 
symbol on monitorRS-232 connector (symbol 
on monitor housing)
Power supp ly  output 
connector on power supplyRS-232...

Packing for Shipment
Chapter 1 - General Information
5
Packing for Shipment 
General Instructions
To ship the monitor for any reason, follow the instructions in this section.
Pack the monitor carefully. Failure to follow the instructions in this section may 
result in loss or damage not covered by the warranty. If the original shipping 
carton is not available, use another suitable carton.
Repacking in Original Carton
If available, use the original carton and packing materials. Pack the monitor as...

Overview Of The Device
6Chapter 1 - General Information
Overview Of The Device
General Description
The device description included in this chapter focuses on the functional 
performance of the replaceable assemblies that may be identified as the probable 
cause of an apparent malfunction.
Refer to the Instructions for Use for information about the operation of the 
monitor and of the Recorder. That manual includes descriptions of the 
installation and setup of the monitor, modes of operation, recording...

Overview Of The Device
Chapter 1 - General Information
7
Block Diagram of Operation
Figure 1 illustrates the functional operation of the monitor, including the 
accessories and options. It incorporates features of the mechanical design, 
indicating the physical relationship of the assemblies and components.
Figure 1 FM-2 Block Diagram of Operation 

Mechanical Description
8Chapter 1 - General Information
Mechanical Description
As indicated in Figure 1, except for the battery, speaker, interface board, and rear 
connector board, all functioning components of the monitor are installed as sub-
assemblies of the case front-cover assembly. There are four sockets (event marker, 
Toco and two US) accessible on the left side panel. These are mounted on a side 
connector PCB, which is itself mounted on the main PCB.
The case rear-cover assembly includes the...