2008T Troubleshooting Guide
P/N 490292 Rev. A
P- G.0.0 ISOLATE POWER LOGIC BOARD
a) IMPORTANT! To prevent damage turn the machine OFF!
b) Figure below, trace the cable from the Blood Pressure Module to ENSURE it is NOT reverse connected
with another module! If it is correct this situation and re-measure +5 and +12 volts as this may be the
problem!
c) See procedure number P- G.2.0 (page 658).
P- G.2.0 MODULES OKAY / ISOLATE POWER LOGIC BOARD
a) Swap in a known good** Power Logic Board**. **To LOCATE the Power Logic Board refer
to Figure 4A AND NOTE A (page 10). The board is known good ONLY if +5 and +12 volts are within
range in another machine!
b)
Turn the machine on (fan running)!
c) ENSURE the black lead remains connected to ground!
d) If possible, return to Dialysis OR Heat Disinfect.
e) 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! See procedure number P- G.5.0 (page 659).
No Screen on and/or good voltage(s) now! The previous Power Logic Board may be bad.
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