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4535 612 34161 HD3 Service Manual Page 61
CSIP Level 1 Theory of Operation: Functional Description
Physical
Functions
The HD3 physical structure is made of fabricated sheet metal and molded plastic parts. The sys-
tem consists of a cart, a user interface (control panel), a visual display (video monitor), and the
ultrasound electronic components. Other important physical components are the power circuts,
software and data storeage devices, and the system input/output (I/O) connection panel.
The location and identification of the physical parts of the system are described in the General
Information, Cabling , Configuration, and Parts sections of this document. The functional nature
of each is described in the following paragraphs.
System Power
System power development and distribution is provided by the installation site source voltage,
the system isolation transformer, power supply, backplane power bus, and power interconnect
cables.
System Power Supply
• Input Voltage: (auto sensing)
- 100-120 Vac ±10%
- 200-240 Vac ±10%
- 50/60 Hz