Fresenius Medical Care 2008K Troubleshooting Manual page 82

TSV- 3.0.0 OLD OR NEW STYLE ACTUATOR BOARD
IMPORTANT!
a) Turn the machine off!
b) Open the card cage. Referring to
sinks that run vertically along the rear and front edge of the board and its integrated circuits are
mounted in sockets. The new-style actuator/test board does not have heat sinks and its integrated
circuits are surface mounted.
c) Is the machine equipped with the old or new-style actuator board?
Old-Style:
New-Style:
a
The cable can be checked for continuity. Proceed to page 225,
ACTUATOR BOARD CABLE
Figure 36 – Actuator Board (Old Style, New Style)
.
Figure 36 (page 80), the old-style actuator board has large black heat
Two possibilities: 1) Bad actuator board (see
valve(s).
Four possibilities: 1) Bad actuator board; 2) Bad actuator cable
distribution board; 4) BAD NOTED valve(s)
Fresenius 2008K Troubleshooting Guide
P/N 507298 Rev. B (Draft 1)
Troubleshooting Valves
Figure 4A, page 8); 2) Bad NOTED
a
; 3) Bad
SECTION 16 - CHECKING THE
Page 80