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GE H
EALTHCARE
D
FL091021, R
IRECTION
5-7-2
Keyboard and Operator Panel Components
5-7-2-1
Power ON/OFF Button
The Power On/Off button receives 3.3 V from the BEP. Once shorted, this voltage is routed to the
PMC which will activate or perform the appropriate task, as required.
5-7-2-2
Alphanumeric Keyboard
The Vivid i n alphanumeric keyboard, with a key arrangement similar to that of a laptop keyboard, is
based on the global GE International standard keyboard requirements.
The alphanumeric keyboard has a PS/2 interface and supports all standard alpha-numeric functionality,
such as, auto-repeat, standard ASCII output codes, etc.
Specially designed, high-quality key caps - together with controllable backlighting - provide a keyboard
that is comfortable and easy to use.
The upper row of functional keys (F1 - F11), are clearly identified as being assigned to specific
ultrasound functions.
5-7-2-3
TGC Sliders
There are six linear Time Gain Compensation (TGC) sliders located to below the alphanumeric
keyboard, at the left corner (see Figure 5-25 on page 5-33 ).
These keys, that slide horizontally, are used to compensate for depth-related attenuation in an image.
5-7-2-4
Gain Rotaries
The Gain Rotaries (which may be rotated or pressed) are located above the TGC Sliders. The lower
Gain Rotary is used for 2D Gain and the upper Gain Rotary is used for Active mode,
5-7-2-5
Extended Keyboard
The Extended keyboard is the ultrasound- specific keyboard which is used to activate the ultrasound
system. This keyboard is controlled via the USB hub located on the keyboard PCB.
5-7-2-6
Trackball
The Vivid i n operator panel has a 1.5" trackball centrally located above the hand-rest area to provide
easy operation.
The trackball has a PS/2 interface and supports a variety of basic PC operations and specific ultrasound
controls.
5-7-2-6-1
Trackball Buttons
The buttons surrounding the Trackball (defined as Trackball buttons) can be divided into two groups:
•
Set and Menu Buttons
These are equivalent to the normal PC mouse left and right click (Set = left-click; Menu = right-click).
The operation of these buttons is supported via the PS/2 Board.
•
Zoom, Trackball, and Store Buttons
These buttons, even though located beside the trackball, are part of the External Keyboard buttons
and not part of the Alphanumerical or regular trackball buttons. The operation of these buttons is
supported via the USB hub located on the keyboard.
5
EVISION
Chapter 5 - Components and Function (Theory)
V
S
M
IVID I N
ERVICE
ANUAL
5-35
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