Revision C 250cx Series Maternal/Fetal Monitor 5-43
2036947-001
Troubleshooting: System Troubleshooting
FAN Secondary failure due to overheating only
TOCO OR STRAIN GAUGE
TRANSDUCER
Try another transducer
TEST FUNCTION
DSP TO UI KEYPAD CABLE Affects all front panel functions
UI KEYPAD BOARD Would affect all buttons on front panel
PRINTHEAD Should print test pattern
RECORDER BOARD Drives the stepper motor and printhead
RECORDER BOARD TO
PRINTHEAD CABLE
Data to printhead
RECORDER BOARD TO MAIN
BOARD CABLE
RECORDER BOARD TO DOOR
SWITCH CABLE
Will not print if main boards thinks door is open
RECORDER MOTOR Could have open winding or bad wire crimp in
connector
MAIN BOARD Communicates with keypad
SYSTEM POWER SUPPLY
DOOR SWITCH Will not print if main boards thinks door is open
DSP BOARD Front panel keypad routed through DSP board
FAN Secondary failure due to overheating only
CHART LIGHT
UI KEYPAD BOARD Would affect all buttons on front panel
DSP TO UI KEYPAD CABLE Affects all front panel functions
SYSTEM POWER SUPPLY
MAIN BOARD Communicates with keypad
DSP BOARD Front panel keypad routed through DSP board
FAN Secondary failure due to overheating only
ALARM SILENCE
DSP TO UI KEYPAD CABLE Affects all front panel functions
UI TO VOLUME BOARD CABLE Affects Volume and Alarm Cancel
VOLUME KEYPAD Affects Volume and Alarm Cancel
250cx Series Service & Troubleshooting
PROBLEM SUBASSEMBLY COMMENTS
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