GE FL000090, Руководство по обслуживанию

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GE H
EALTHCARE
D
IRECTION
FQ091013, R
EVISION
1 V
IVID
I
N AND
V
IVID Q
N S
ERVICE
M
ANUAL
5-36 Section 5-7 - Monitor and Operator Panel
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 5-34 ).
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/ Vivid q 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.
5-7-2-7 Key and Backlight Illumination
The keys on the operator panel are illuminated according to their current status/availability, as follows:
•
Green
- key function is currently active .
•
White
- key function is available (but not active) in the currently-selected
scanning mode and/or options enabled.
•
No illumination
- key is not available in the currently-selected scanning mode and/or
options enabled.
Three separate backlight illumination functions are provided:
• On the Alphanumeric Keyboard:
The complete alphanumeric keyboard has backlit illumination which is controlled by commands
coming from the BEP via the USB Hub.
•
On the Extended Keyboard
:
Each key on the extended keyboard has its own backlight illumination which is controlled by the
BEP via the USB Hub. Available keys are illuminated.
•
Active Key Backlight
:
Keys which have an On/Off position (enabled/disabled) are illuminated with a green backlight to
inform a user of the current state.