Functional checks
LOGIQ V3/V5/V5 Expert – Basic Service Manual             4-29
5726264-100 English Rev.8
4-3-14 M Mode Checks
4-3-15 M-Mode Screen Example
4-3-16 Preparations
•  Connect one of the probes to the scanner’s left-most probe 
connector.
•  Turn ON the scanner. 
The 2D Mode window is displayed (default mode).
• Press M Mode on the Operator panel to bring up an 
M-Mode picture on the screen.
Use the trackball to position the cursor over the required 
area of the image.
4-3-17 Adjust the M Mode controls
These Image Controls are used to optimize the M mode picture. 
Verify that all the listed controls are working as intended:
• Adjust Horizontal sweep to optimize the display resolution.
Adjust Gain and TGC controls to adjust the range to be 
imaged.
Adjust Compression and Edge Enhance to further 
optimize the display.
Adjust Rejection to reduce noise while taking care not to 
eliminate significant low-level diagnostic information.