ASP STERRAD 100, Service Manual

Page: 137 / 309

Control Subsystem Replacement
The removal and replacement procedures below show how to remove the
control enclosures. The boards, and power supplies, are field replaceable
units. The boards are removed by pulling them out from the card cage.
as shown in the diagram below.
Remove the Control Enclosure
1. Remove the system panels. Unplug the control harnesses leading to
the printer, RF generator, the thermistors, the injector, the user
interface, the pneumatics system, the vacuum throttle valve and the
AC interface.
2. Unplug the unit from the AC power.
3. Unplug the CPU, analog and digital I/O boards from the enclosure
and set them aside in a static safe area.
4. Unscrew the control enclosure from the frame and remove it from the
system.
4 4
Note : The Block 2 control enclosure is slightly different looking,
on the inside, from the Block 1.8.
Figure 6-6. Control Enclosure
User Interface and Control Subsystems Control Subsystem Replacement
6-24 STERRAD® 100 Sterilizer ASP Service Guide rev D.