GE M
EDICAL
S
YSTEMS
D
IRECTION
FC091194, R
EVISION
02
V
IVID
7 / V
IVID
7 PRO S
ERVICE
M
ANUAL
Chapter 6 - Service Adjustments
6 - 3
6-3-3-1
Adjust Contrast
1.) Press Left button on the display monitor once (see
Figure 6-1
).
2.) Press Right button to increase contrast.
3.) Press Center button to decrease contrast.
The amount of contrast is shown on a slider on the screen (see
Figure 6-1
).
6-3-3-2
Adjust Brightness
1.) Press the Left button on the display monitor twice (see
Figure 6-1
).
2.) Press the Right button to increase brightness.
3.) Press the Center button to decrease brightness.
The amount of brightness is shown on a slider on the screen (see
Figure 6-1
).
Section 6-4
Front End Alignment Procedure
6-4-1
Introduction
Front End Alignment Procedure (Beam Former Calibration Procedures) are performed to calibrate each
ADC channel of the two Bean Former (BF) inputs. The system calibrates the ADC to zero output when
there is no signal on the input. These bias voltages are stored in Backend Processor.
6-4-2
When to do a Front End Alignment Procedure
Do the Front End Alignment procedure;
•
when installing a new Vivid 7 / Vivid 7 PRO
•
after software has been updated or replaced
•
when BF boards have been interchanged
•
when a BF board has been replaced
•
when the Backend Processor has been replaced
6-4-3
Procedure
See
7-4-5 - Beamformer Calibration (Front End Alignment)
starting on page
7-65
.
Содержание FC091194
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