Bayer HealthCare RapidPoint 400 Series, Service Manual, Page: 211 / 458

Rev. C Troubleshooting 211
D76 Qualifier Descriptions
D76 indicates a failure of the CO-ox electronic hardware that occurs during
PUI and during the various BITs listed in the following table.
CO-ox measurement is terminated for qualifiers 2, 6, and 8, blood gas data
is still reported.
Qualifiers 3, 4, and 5 are not detected during sample measurement.
The CO-ox sample results are not reported until the error is cleared.
Message Probable Cause and Corrective Action
D76 COox
Electronics Error:
Qualifiers:
2 Polycromator
Board - Main Board
Interface Error
3 ADC/DAC Error
4 readout Circuit
Gain Error
5 Noisy ground
6 Lamp DAC Error
8 Lamp Control Error An error has occurred in the CO-ox electronic components.
NOTE:
The system can measure samples and report results for
parameters that are still available.
1. Shut down the system as described in
Shutting D own the
System , page 256, wait 10 seconds, and then turn the
system on.
2. If the message appears again, record the message,
including the qualifier, and call for technical assistance.
Service Solutions
Perform service solutions only after all other corrective actions
have been completed.
For Error 2, 3, 4, 5:
1. Check the ground on the polychromator. Verify all screws
are tight.
2. Remove the polychromator ribbon cable and reattach.
Power up the system.
3. If the error persists, replace the polychromator module.
4. Replace the Main board.
For Error 6:
1. Check power supply voltage.
2. Replace the Main board.
For Error 8:
1. Check the fiber bundle connection to the Main board at U3.
2. Replace the Main board.