Fresenius Medical Care 2008K Troubleshooting Manual page 109

Yes a) Reconnect the X2 cable to the power control board.
b) How to proceed depends upon if 'clip on' meter leads are available (see
11):
No Replace the power control board (or diode 17 (1N914B)). The power logic board is probably
also bad (see
T- 2.3.1 CHECK POWER LOGIC BOARD (WITHOUT CLIP ON METER LEAD)
a) Swap in a known good power logic board (see
b) Place the machine into Dialysis program (remember to press the 'CONFIRM' key).
c) Call debug screen 5. After no more than five minutes, does TPRE (middle column, top)
increase to 3600 or greate?
Yes The previous power logic board is bad (see
No a) Return NTC #2 to distribution board position "CON-NTC" (
b) Turn the machine off and swap in a known good function board (see
B, page 8). Assure EEPROM (IC2) is installed.
c) From Service Mode, select Calibrate Sensors
Temperature on the external meter to 37° C?
T- 2.3.2 CHECK POWER LOGIC BOARD B (WITH CLIP ON METER LEAD)
a) Referring to Figure 46
horizontally, turns 90 degrees downward, and plugs into the motherboard connector. This is the "C" row.
Figure 46 – Electronic Card Cage (Power Logic Board, Pin C10)
b) Remove the power logic board from the card cage and clip a meter lead onto motherboard pin C10 (fifth
pin from the front of the machine).
c) Reinstall the board keeping the meter lead vertical. ASSURE the meter lead is not contacting
adjacent pins!
Clip on leads NOT available: See procedure number
Clip on leads ARE available: See procedure number
Figure 4A and NOTE B, page 8).
Yes The previous function board is bad. Perform all calibrations.
No Three possibilities: 1) Bad sensor board cable; 2) Bad power logic board;
3) Bad motherboard.
(page 107), at the bottom of the power logic board a row of pins extend
Fresenius 2008K Troubleshooting Guide
P/N 507298 Rev. B (Draft 1)
Figure 4A and NOTE B, page 8).
Figure 4A and NOTE B, page 8).
Temp Control. Are you able to adjust
Section 4 – Temperature Problems
Figure 5, page
T- 2.3.1 (page 107)
T- 2.3.2 (page 107)
st
1
position from the left).
Figure 4A and NOTE
Page 107