Functional Overview - GE Corometrics 170 Series Service Manual

Functional Overview

Speaker
Display Board
Membrane
Membrane
Switch Panel
5-2
Theory of Operation: Functional Overview
For all 170 Series Monitors, the Main Board controls the majority of the 170 Series
functionality including:
antepartum (US, TOCO) front ends and connector(s)
uterine activity front end and connector
seven-segment displays
user-interface buttons
peripheral device communications
processing
For Models 173 and 174, a separate FECG/IUP Board controls:
intrapartum front ends
isolation for analog signals
Figure 5-1 provides an overview of the system architecture.
Table 5-17 provide pinouts for each of the external connectors and the internal main
board harness connectors.
front and rear panel connectors.
Cable
Display
Speaker
MAIN BOARD
Cable
Cable
Cable
Figure 5-1. Overview of System Architecture
170 Series Monitor
Figure 5-2 through
Printhead
Cable
Sensor
2000947-004
Table 5-1 through
Figure 5-9 provide illustrations of the
RECORDER MODULE
Printhead and Sensors
Revision C