Fresenius Medical Care 2008K Troubleshooting Manual page 261

ABPF- 1.0.1 CHECK 24V-B
a) Turn the machine off.
b) Referring to the Figure (right), place the red meter lead at TEST
connector, pin 8 second pin from the right
c) Turn the machine on and watch CAREFULLY. Does voltage go to
between 22 and 28 volts DC at any time during the power on sequence
but before the alarm occurs?
Yes See procedure number
No Proceed to page 212,
ABPF- 1.0.2 CHECK POWER CONTROL BOARD OUTPUT
The following checks are to be performed during the power on sequence up until the point the Alarm occurs.
a) Turn the machine off and UNPLUG it. CAUTION!
Electrocution hazard if not unplugged!
b) Slide the power supply away from the cabinet. Inside is the
power control board where the power cable (X1)
terminates.
c) ASSURE ALL cables are plugged in securely at the top
of the power control board. If NOT this may be the
problem!
d) Referring to the Figure (right), remove the board from its
four plastic clips and remove the two front screws.
e) Lay the rear panel down to access to the rear (solder)
side of the board power control board.
f) Plug the machine in. CAUTION! High voltage now
present!
g) Referring to the Figure (right), place a meter
lead at the rear (solder) side of the X1 connector
at pin 9 (far left).
d) Turn the machine on and watch carefully. Between
20 and 29 volts DC at any time during the power up
sequence before the Alarm occurs?
Yes Bad Power Cable X1 (see
page 258).
No Bad Power Control Board.
ABPF- 1.0.2 (page 259).
SECTION 24 – TROUBLESHOOTING POWER
Figure 135,
Fresenius 2008K Troubleshooting Guide
P/N 507298 Rev. B (Draft 1)
Section 26 – Act Blood Pump Failed
DISTRIBUTION.
Page 259