Overview
2-36
Service Periodic Maintenance
Contents
Schematics Illustrated PartsInstallation
Power Distribution Subsystem
The Workstation Power Subsystem distributes AC and DC power to Workstation components, and may also provide
AC power to externally attached equipment such as a C-Arm. Power Subsystem components include the power plug
and cord, Surge Suppressor PCB, Isolation Transformer, AC circuit breakers, Power Control PCB, terminal blocks, AC
line filter, cooling fans, and DC power supplies PS1 and PS2. These components are located throughout the
Workstation. Refer to Section 3 - System Power Distribution for additional information.
System Software
System software that controls both the Workstation and the X-Ray generator resides on the Workstation’s IDE Hard
Disk Drive. The Workstation Host Controller subsystem normally boots from this drive.
OEC application software executes under the Nucleus® operating system. The OEC applications and operating
system are both located in the non-DOS formatted 50 Mb portion of the hard drive.
File management and related utilities are located on the DOS-formatted section of the hard drive.
Boot Sequence
When you power up the Workstation, Host CPU software begins a step-by-step process of conducting power-on self
tests (POSTs), establishing ARCnet interprocessor communications, and performing other tasks that prepare the
system for use. This series of events is called the boot sequence. For a detailed description of the steps included in
the boot sequence, refer to Section 10 - Software.
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