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3
MONITOR DESCRIPTION
3
MONITOR DESCRIPTION.......................................................................................... 3-1
3.1
General................................................................................................................... 3-1
3.2
Functional Block Diagram..................................................................................... 3-1
3.3
System Overview ................................................................................................... 3-3
3.4
Isolated Signal Processing ..................................................................................... 3-3
3.5
Non-Isolated Signal Processing ............................................................................. 3-6
3.6
Mechanical Architecture........................................................................................ 3-9
3.7
AN4700 Bill of Materials (10-61216-01) ............................................................ 3-15
3.1
General
Chapter 3 provides information about LIFEGARD ICG monitor operation
that supports effective and efficient troubleshooting and replacement of
malfunctioning FRU assemblies and components.
The chapter includes descriptions of functional, electrical, and mechanical
subsystems emphasizing the roles assigned to FRU items in these
subsystems. Simplified block diagrams, schematics, and assembly drawings
are used to support the text descriptions.
3.2
Functional Block Diagram
Figure 3-1 illustrates the major functional blocks that are configured to
perform the monitor’s measuring and displaying functions.
Keypad
6V
Battery
Battery Eliminator
Patient
Cuff and
NIBPCable
Air Tubing
Main PCB
µ Processor
and Memory
Control Circuitry
LCD Color
Display
Printer I/O Board
Printer
Assembly
Power Supply
System
Valve 1
Valve 2
Backlight Inverter
A/D Processing
Speaker
Assembly
NIBP Pump
Isolated
Power
Supply
ICG Patient Cable
Isolated
Serial
Interface
ICG and ECG
Processing
A/D Processing
Isolated Front End
Figure 3-1. LIFEGARD ICG Functional Block Diagram
3-1
16-00118-01
Copyright © 2004 Analogic Corporation
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