Fresenius Medical Care 2008K Troubleshooting Manual page 11

Figure 4B – Old / New Style Power Logic Board
C. Referring to Figure 4C (page 10), machines produced in 2007 and later MAY be equipped with the new
style 'combination' Actuator / Test Board
The Actuator / Test Board 'combine' the functions of the separate old style Actuator and Test
Boards and uses motherboard slot #4. To use the 'combination' features the machine must be
equipped with the new style motherboard AND Function board software must be version 3.29 or
greater. A separate Test Board is not required (i.e. motherboard slot number #6 is empty. Slot #6
may be used for future development)
The Actuator Board / Test Board can be used as just an Actuator board with the old motherboard
providing a separate Test board is ALSO installed in motherboard slot #6 AND Function Board
software is version 3.29 or greater
If a new Actuator / Test Board is placed into the machine VOLTAGE DETECTOR CALIBRATION
must be performed otherwise 5 or 12 volt alarms may occur
Fresenius 2008K Troubleshooting Guide
Page 9
P/N 507298 Rev. B (Draft 1)