GE Venue Go Service Manual page 150

P R E L I M I N A R Y
D 5813707-100, R
IRECTION
7) Verify image is homogeneous and no flashlight noise appears in each step
4-3-4-1-4 Color Test (3SC-RS Probe)
8) Select Cardiac preset
9) Increase gain till image is visible.
10) Scan in COLOR mode default frequency, increase depth to max.
11) Place ROI at the bottom of the screen (full width, 6-35cm).
12) Increase gain till color random noise is visible in the ROI.
13) Verify no Flashlight noise appears in center of ROI, color random is homogeneous.
14) If there is weak flashlight noise, measure it as follows: increase gain till color noise starts to appear
in the center of ROI. Record the gain value. Continue to increase gain till color noise appears on
the sides of ROI. Record the gain.
15.)Verify that the difference of the gain is not more than 1dB.
4-12
2
EVISION
Figure 4-50 2D B-Mode Image Test
Figure 4-51 2D B-Mode Image Test - Color
Chapter 4 - General Procedures and Functional Checks
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ENUE O ERVICE ANUAL