GE Cardiocap 5 Service Manual

Service Procedures 
7.3.6 AC/DC unit replacement 
1. Remove the 3 screws that hold the AC/DC unit to the backplate unit. 
2. Disconnect AC/DC–DC/DC cable from the DC/DC board. 
3. Disconnect the ground wire. 
4. Lift the AC/DC unit carefully up. 
7.3.7 DC/DC board replacement 
You may move the AC/DC unit out of the way first to improve access to the DC/DC board. 
1. Disconnect the DC/DC–AC/DC board cable from the DC/DC board. 
2. Disconnect the DC/DC–Mother board (red & black color) cable from the...

Cardiocap/5 Technical Reference Manual 
7.3.10 CPU battery replacement 
 CAUTION: Discard the lithium battery according to local regulations. 
Before replacing the battery, determine the monitor software version. Look on the small sticker on the 
rear of the monitor. The software version follows the dash after the part number (for example, in 
898716–1.0, the monitor software is version 1.0; in 898716–2.4, it is version 2.4). If you cannot 
determine the software version from the sticker, look at the...

Service Procedures 
7.3.11 CPU board replacement 
Important:  The new CPU board does not contain software or network options. If the network is 
required, make sure the CPU board supports the network. You must load the software after you replace 
the board. Refer to the Spare Parts chapter. 
1. Disconnect the following flat cables from the CPU board: 

Cardiocap/5 Technical Reference Manual 
7.3.13 Enhanced pulse oximetry (N-XOSAT) or SpO2 interface board replacement  
1. Disconnect the Mother board cable from the SpO2 interface board. 
2. Remove the 3 screws that secure the assembly cover to the front panel. 
3. Remove the 4 screws that secure the SpO2 interface board to the assembly cover. 
4. To remove the pulse oximetry board cover from the SpO2 interface board, gently bend the tabs to 
an upright position and lift the cover off.  
5. Remove the 4...

Service Procedures 
Installation notes (refer to figure 7-2):  

Cardiocap/5 Technical Reference Manual 
7.4 Adjustments and calibration 
You use service menus to perform procedures in this section. Once you have entered the Service View 
menu, you can enter and exit the specific service menus at which you make the adjustments.  
To enter the Service View menu, from which you access all other service menus: 
1. Press the ComWheel and select Monitor Setup. 
2. Select Install/Service and enter the password (16-4-34). 
3. Select Service and enter the password (26-23-8)...

Service Procedures 
7.4.2 NIBP calibration check 
NIBP pressure measurement electronics are calibrated at the factory. The processor maintains zeroing 
pressure automatically. If the zero point of the pressure transducer drifts more than specified, an error 
message is given and the NIBP board should be recalibrated or replaced. 
Checking the primary pressure channel calibration 
1. To check the primary pressure channel calibration, press the NIBP key and select NIBP Setup to 
open the NIBP Setup menu....

Cardiocap/5 Technical Reference Manual 
7.4.3 NIBP calibration 
A hole in the middle of the monitor bottom plate provides access to a gear wheel for the Temperature and 
NIBP calibration protection switches. Turning the gear wheel moves a slide that operates the switches. 
CAUTION:  Turning the gear wheel more than 1/4 turn can damage the calibration switch. 
 
Figure 7-4. Calibration switch 
1. Detach the NIBP hoses from the front panel connector to enable proper zeroing. 
2. To enter the NIBP...

Service Procedures 
11. Turn the gear wheel approximately 1/4 turn counterclockwise until Protection is highlighted. 
Choose Protection ON and push the ComWheel. Turn the gear wheel approximately 1/4 turn 
clockwise until Calibration and Protection become faint.  
12. Perform the NIBP calibration check (earlier in this chapter) to verify the new calibration. 
7.4.4 Temperature calibration 
Always calibrate the temperature: 
• When measured test values deviate more than ± 0.1 °C.  
• After replacing the...

Cardiocap/5 Technical Reference Manual 
7.4.6 General checks for gas system components 
These faults can occur in the sampling system:  
• Leaks or blockages in the tubing. 
• Sampling pump or magnetic valves failure. 
• Diminished flow rates because of dirt accumulation in the internal tubing. 
The following checks should help in localizing the fault. Whenever you suspect the sampling system 
and always after you work on the sampling system, check and (if necessary) adjust the flow rate. 
CAUTION: The...