P- 2.0.5 Isolate Power Logic Cable - Fresenius Medical Care 2008K2 Troubleshooting Manual

P- 2.0.5 ISOLATE POWER LOGIC CABLE

ENSURE the machine is on (fan running)!
a)
CAUTION!
b) Signals will be measured at pins that are VERY close to others and touching them
together, with a standard meter lead, WILL CAUSE DAMAGE! As directed below, make your RED
meter lead PROTECTED!
Per the Figure below
c)
X2 ribbon cable.
d) Measure at the rear side of the X2 connector at
machine). More than 10.0 volts DC?
Yes More than 10.0 volts! See procedure number
No Less than 10.0 volts! Replace the 20-pin Power Logic X2 ribbon cable.
Figure 130 – Electronic Card Cage / Power Logic Board / Pin1
DO NOT CONTINUE UNTIL YOU HAVE DONE THIS!
, at the top of the Power Logic Board, closest to the screen, locate its 20-pin
pin 1
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
(bottom row, first pin from the REAR of the
P- 2.0.6 (page 644).
Page 643