P- G.5.0 Original Symptom Still Present/Isolate Modules; P- G.5.1 Symptom Not Present/Isolate Potential Bad Module - Fresenius Medical Care 2008K2 Troubleshooting Manual

Hemodialysis system
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P- G.5.0 ORIGINAL SYMPTOM STILL PRESENT / ISOLATE MODULES
NOTE: The previous Power Logic Board is probably good!
IMPORTANT! To prevent damage turn the machine OFF!
a)
Per the Figure previous page
b)
module!
IMPORTANT!
c)
Turn the machine ON (fan running)! If possible, return to Dialysis OR Heat Disinfect.
d) Re-measure +12 and / or +5 volts (within range now?). 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
Symptom reoccurs! A)
Blood Pressure module cable ONLY is returned to the Blood Pressure or Colin connector,
reconnect ALL module cables; C) Proceed to
No
Screen on and / or good voltage(s) now! To locate the bad module see procedure number
P- G.5.1
(page 610).
P- G.5.1 SYMPTOM NOT PRESENT / ISOLATE POTENTIAL BAD MODULE
IMPORTANT!
a)
To prevent damage turn the machine OFF!
b) Your choice, plug ONE of the modules back in.
module into the Blood Pressure or Colin position and not another module!
IMPORTANT!
c)
Turn the machine on (fan running)! If possible, return to Dialysis OR Heat Disinfect.
d) Re-measure +12 and / or +5 volts (within range now?). 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
Symptom reoccurs! The last module plugged in (or its cable) is causing the problem!
No Screen on and/or good voltage(s)! Repeat parts a through d until ALL modules and have been
plugged in. If the symptom does not reoccur, reseating the cables MAY have eliminated the
problem.
MODULES ONLY
, unplug the
IMPORTANT!
Turn the machine OFF! B) BEING CERTAIN the
CAUTION!
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
, including the Blood Pressure
page 611
, procedure number
Be certain to plug the Blood Pressure
P-
G.5.2.
Page 610

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