GE Corometrics 170 Series Service Manual

Revision C 170 Series Monitor 5-41
2000947-004
Theory of Operation: FECG/IUP Board Theory of Operation
* Active low.
Table 5-20. FECG/UA Unisolated Output (P16), Models 173/174 Only
Pin Number Signal Name
Signal Type
(Relative To Main
Board)
Signal Description
1
+12 V (173)
+11.6V (174)
Output
+12 V for FECG Isolated Power Supply
(Model 173 only)
+11.6 V for FECG Isolated Power Supply
(Model 174 only)
2 GND Output Digital Ground
3 +5V Output +5 V Supply
4 +7.5V Output +7.5 V Supply
5 2.5VREF Output 2.5 V Reference
6 IUPEN* Input IUP Enable Output
7 +3.3VANA Output +3.3 V for Analog
8 144KC Output 144 KHz for Isolated Power Supply
9 –3.3VANA Output –3.3 V for Analog
10 AGND Output Analog Ground
11 FECGOUT Input FECG Analog Output
12 PRESSOUT Input Pressure Analog Output
13 FECGEN* Input FECG Enable
14 CLR* Output
Ultrasound Sync Timing Line
(Model 174 only)
15 TOCOEN* Input TOCO Enable
16 US1EN* Input
US1 Mode Enable
(Model 174 only)

GE Corometrics 170 Series Specifications

General

Brand	GE
Model	Corometrics 170 Series
Category	Medical Equipment
Language	English