GE LOGIQ E9 Service Manual page 179

GE
D 5535208-100, R
IRECTION
4-3-6 M-Mode Checks
For information on the system's different modes as well as expected results, the Basic User Manual or
User Guide will familiarize you with image optimization for B-Mode, M-Mode, Color Flow, and Doppler.
Table 4-15
Control
Power Output (Acoustic Power)
Dynamic Range
Focus Number and Position
Rejection
Frame Average
Colorize
Gray Map
Rotation (Up/Down)
Frequency
Frame Rate/Resolution
Sweep Speed
4-3-6-1 Preparations
Use a phantom (optional) when doing these tests.
1.) Connect one of the probes, to the scanner's active probe connector.
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2.) Turn ON the scanner.
4-3-6-2 Checks
• Check Horizontal Sweep, Frequency, and Focus
• Check Compress, Reject, Power and Dynamic Range
. 2
EV
B/M-Mode Functions
Optimizes image quality and allows user to reduce beam intensity. 10% increments between 0-100%. Values
greater than 0.1 are displayed
Controls how echo intensities are converted to shades of gray, thereby increasing the adjustable range of contrast.
Increases the number of transmit focal zones or moves the focal zone(s) so that you can tighten up the beam for a
specific area. A graphic caret corresponding to the focal zone position(s) appears on the right edge of the image.
Selects a level below which echoes will not be amplified (an echo must have a certain minimum amplitude before
it will be processed).
Temporal filter that averages frames together. This has the effect of presenting a smoother, softer image.
Enables gray scale image colorization. To deactivate, reselect a Gray Map.
Determines how the echo intensity levels received are presented as shades of gray.
Rotates the image by selecting the value from the pop up menu.
Multi Frequency mode lets you downshift to probe's next lower frequency or shift up to a higher frequency.
Optimizes B-Mode frame rate or spatial resolution for the best possible image.
Changes the speed at which the timeline is swept.
see: Section 3-6-6 "Connecting Probes" on page 3-20
For available probes, see: On-line Help or Chapter !7 of the Basic User Manual.
Chapter 4 Functional Checks
LOGIQ E9 S
Description
for info about connecting the probes.
M
ERVICE ANUAL
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