Service manual
GE MEDICAL SYSTEMS
D
IRECTION 2300749-100, REVISION 2 LOGIQ
TM
3 SERVICE MANUAL
4-14 Section 4-4 - Functional Checks
4-4-2-3 B Mode Top and Sub menu Controls
Table 4-5 B Mode Top and Sub menu Controls
Step Task Expected Result(s)
1
Rejection
Adjust rejection level. When this control is increased, low-level echoes are rejected and appear darker
in the B image. Rotate Rejection to left/right to adjust the level. An index number is displayed on the
Top Menu to indicate the relative level of rejection.
2
Colorize
Colorize the gray scale image to enhance the eyes’ discrimination capability. Rotate the Colorize Knob
to cycle through the availabe color maps.
3
Edge Enhance
Enhance the gray scale differences corresponding to the edges of structures. Press and turn Edge
Enhance left/right to cycle through the settings.
4
Gray Map
Displays a map window adjacent to the image.Rotate the Gray Map Knob to select the map. The image
reflects the map as scrolled through the selections.
5
Frequency
Enables the adjustment of the probe’s operating frequency. Rotate Frequency and select desired
value. The selected frequency is displayed in the status window.
6
Virtual Convex
Displays larger field of view in the far field. Press the Virtual Convex on Top Menu to activate.
This mode is Available only on the Linear Probes
7
Frame Average
Averages frames together and create more pixel, smoother image. Use the Paddle left/right switch to
adjust the value. The selected value is displayed on the Sub Menu.
8
Up-Down Invert Flip the image vertically. Press Up-Down invert to flip up/down.
9
Dynamic Range
Dynamic Range controls how echo intensities are converted to shades of gray, thereby increasing the
adjustable range of contrast. This Control is available on the Top Menu
10
B Softener
Affects the amount of lateral smoothing. This control is available on the Sub Menu
11
Suppression Suppress the Noise level.
12
Focus Width Adjust the Width between two Focus points
13
Power Output Adjust Power Output Level
14
Focus Position and Number
Increases the number of focal zones or moves the focal zone(s) to tighten up the beam for specific
area. Press the control to toggle between Focus Position and Focus Number. Turn Focus Position left/
right to move the Focus. Press and Turn the Knob to adjust the focal numbers.
15
Biopsy Biopsy guidelines appears.
16
Line Density
Optimizes B-Mode frame rate or spatial resolution.