GE Corometrics 250cx Series Service Manual

Revision C 250cx Series Maternal/Fetal Monitor 5-39
2036947-001
Troubleshooting: System Troubleshooting
TRANSDUCER
COMM BOARD WITH I/O
CONNECTORS
Sits on same data bus as DSP/Display board
FAN Secondary failure due to overheating only
MECG
ISOLATED POWER SUPPLY
MECG BOARD
DSP BOARD Processes MECG analog
MECG FRONT-END CABLE &
CONNECTOR
Usually bad connector crimps
FRONT-END MOTHERBOARD Passes all front-end signals -make sure boards
seated & no connector damage
MAIN BOARD Processes for displaying
FECG/UA BOARD Can affect board, try removing
SYSTEM POWER SUPPLY
COMM BOARD WITH I/O
CONNECTORS
Sits on same data bus as DSP/Display board
FAN Secondary failure due to overheating only.
MSpO
2
MSpO
2
FRONT PANEL
CONNECTOR BOARD
More likely internal cable
MSpO
2
MODULE
FRONT-END MOTHERBOARD Passes all front-end signals -make sure boards
seated & no connector damage
ISOLATED POWER SUPPLY
MSpO
2
FRONT-END CABLE Usually bad connector crimps
MSpO
2
CARRIER BOARD Insure board seated properly
SYSTEM POWER SUPPLY
MAIN BOARD Processes for display
DSP BOARD Just routes traces to Main board
FAN Secondary failure due to overheating only
250cx Series Service & Troubleshooting
PROBLEM SUBASSEMBLY COMMENTS

GE Corometrics 250cx Series Specifications

General

Type	Fetal Monitor
Model	250cx Series
Manufacturer	GE Healthcare
Fetal Heart Rate Monitoring	Yes
Ultrasound Frequency	1 MHz
Recorder Speed	1, 2, 3 cm/min
Maternal Parameters	ECG, NIBP, SpO2
FHR Range	30-240 bpm
TOCO Range	0-100
Connectivity	RS-232
Power Source	AC Power
Display	Color LCD