Isolate Functional Board Devices - Fresenius Medical Care 2008T Troubleshooting Manual

P- H.1.4 ISOLATE FUNCTIONAL BOARD DEVICES
To prevent damage turn the machine OFF!
a)
b) Device cables along the TOP EDGE ONLY of the Functional Board AND Power Logic Board will be
Per the Figure below
unplugged next.
RECORD where they are plugged in BEFORE continuing to part c.
c) Unplug the device cables BUT DO NOT unplug the Power Logic Board's front ribbon cable!
d) From here forward, ignore "Art BP No Comm" OR "Blood Still Sensed!" if they occur!
e) Repeat the Voltage Detection Calibration. THREE (3) possible scenarios 1) or 2) or 3):
1) IF "Operator Error" reoccurs: See procedure number
2) IF 5V EST AND/OR 12V EST are not in range: See procedure number
3) IF "Operator Error" did NOT occur AND 5V EST AND 12V EST are in range: One of the
devices may be causing the problem. To locate which one perform parts A through C below:
A) Turn the machine OFF!
B) Your choice, return ONE of the device cables to WHERE IT BELONGS.
C) Repeat the Voltage Detection Calibration. When the problem reoccurs the last device plugged
in or its cable is causing the problem!
, to prevent damage when eventually returning them,
2008T Troubleshooting Guide
P/N 490292 Rev. A
P- H.1.5 (page 678).
P- H.1.5 (page 678).
Page 677