Ui-Mics Board Diagram - Fresenius Medical Care 2008T Troubleshooting Manual

Turn the machine on (fan running)!
e)
ENSURE the black lead remains connected to ground!
f)
g) If possible, return to Dialysis OR Heat Disinfect.
h) Either re-measure +12 and / or +5 volts (within range?) OR if the symptom was intermittent call debug
screen 1 to watch 5V Est and / or 12V Est. Allowing sufficient time, does the symptom you were
troubleshooting reoccur (Yes or No)?
Yes Symptom still present! Perform parts A THROUGH C below:
A) Turn the machine off and plug the UI-MICS cable back into the CORRECT position per
the labels.
B) Repeat part d through h until all UI-MICS device cables listed in the table have been
unplugged.
C) If after ALL cables have been unplugged AND the symptom continues, leaving the
machine on, see procedure number
No Screen on and / or good voltages! The last UI-MICS device unplugged or its cable is causing the
problem!
UI-MICS BOARD
P- G.5.8
2008T Troubleshooting Guide
P/N 490292 Rev. A
(page 669).
Page 667