GE Cardiocap 5 Service Manual

Contents 
Chapter 4. Troubleshooting  
4.1 Messages........................................................................\
....4-1 
4.2 Troubleshooting charts.........................................................4-7 
4.2.1 Start-up troubleshooting........................................................................\
.....4-7 
4.2.2 General........................................................................\
..............................4-8 
4.2.3...

Troubleshooting 
4. TROUBLESHOOTING 
See the User’s Reference Manual for more messages and troubleshooting procedures.  
4.1 Messages 
MESSAGE POSSIBLE CAUSE ACTION 
Acknowl. alarms 
silenced 
Acknowledged alarms are silenced (Silence 
Alarms key pressed during silencing period). 
No action required. 
Air leakage Hose and/or cuff leaking. Damaged cuff, cuff 
connector, or hose double connector. 
Replace cuff, cuff connector, and/or 
hose double connector. 
 Hose and cuff OK, but tube disconnected or...

Cardiocap/5 Technical Reference Manual 
MESSAGE POSSIBLE CAUSE ACTION 
Call service:  Error X 
(X = the NIBP hardware  
 1 ROM checksum error; memory failure Change NIBP board. 
error number shown in 
next column)  2 + 15 V failure. Check short circuits. Change NIBP 
board. 
  3 – 15 V failure. Check short circuits. Change NIBP 
board. 
  4 EEPROM protection switch error. Change NIBP calibration protection to 
OFF by turning the gear wheel and 
selecting Protection OFF in the NIBP 
Calibration menu....

Troubleshooting 
MESSAGE POSSIBLE CAUSE ACTION 
Cuff loose (NIBP) Hose and/or cuff not connected. Connect the hose and the cuff. 
 Cuff loosely wrapped. Tighten the cuff. 
 Leakage in cuff or hose. Replace cuff/hose. 
 Leakage inside module. Check/fix internal tubing and air 
chamber. 
 Pump does not work. Check pump connector; if O.K., replace 
pump. 
 No pulses during the last three measurements Check cuff positioning. 
Cuff occlusion NIBP cuff and/or hose occlusion due to kinked 
cuff tube or kinked...

Cardiocap/5 Technical Reference Manual 
MESSAGE POSSIBLE CAUSE ACTION 
NIBP measurement 
removed 
Signal cable is loose or not attached. Check signal cable connections from 
Mother board to CPU board. 
No P1/P2 transducer Invasive pressure or transducer cable not 
connected. 
Connect invasive pressure or transducer 
cable. 
No SpO2 probe SpO2 sensor is not connected to the monitor. Check sensor connections. 
 Faulty or wrong type of SpO2 sensor (sensor is 
not specified for use with the installed pulse...

Troubleshooting 
MESSAGE POSSIBLE CAUSE ACTION 
Response too weak (NMT) The maximum gain is insufficient to 
increase the response signal amplitude to a 
measurable level. This can occur if: 
• Stimulation current is too weak. 
• Stimulation electrodes are not connected or 
they are improperly placed on the nerve. 
• Recording electrodes are disconnected. 
• Electrode(s) dry and should be replaced. 
• Skin at electrode site is improperly prepared. 
Reposition the stimulating or recording 
electrodes....

Cardiocap/5 Technical Reference Manual 
MESSAGE POSSIBLE CAUSE ACTION 
Unstable zero pressure Pressure is unstable when starting the NIBP 
measurement. 
Calm the patient and retry. 
Voltage error Erroneous voltage level detected. Replace power supply unit. 
Weak pulsation Weak or unstable oscillation pulses due to: 
• Marked arrhythmia; too few pulses detected; 
weak or unusual blood circulation. 
• Artifacts (accurate diastolic pressure difficult 
to measure) or marked drop in diastolic 
pressure.  
•...

Troubleshooting 
4.2 Troubleshooting charts 
4.2.1 Start-up troubleshooting 
No picture on screen NOTES 
⇓  
Check that the mains power is 100 to 240VAC. If the mains power is too low or high the power supply 
does not work. 
Check that the mains fuses have not blown. Fuse type has to be T2AH. 
Check that the monitor is not in the SHUT DOWN 
mode. 
Detach the mains cord from the monitor for at least 
30 seconds to reset possible SHUT DOWN mode. 
OK but still no display  
⇓  
Check that the green LED on...

Cardiocap/5 Technical Reference Manual 
4.2.2 General 
SITUATION POSSIBLE CAUSE ACTION 
Keyboard and ComWheel 
are not working 
Keyboard and ComWheel cables 
not connected to CPU board. 
Detach monitor rear cover and check the 
cable connections to the CPU. 
 Faulty CPU. Replace the CPU if the cable connections 
are OK 
Keyboard is not working 
but the ComWheel works 
Keyboard cable not properly 
connected to the CPU board. 
Detach monitor rear cover and check the 
keyboard cable connection to CPU....