GE Vivid S5 N - 7-4-6 Probe Select Board Diagnostic Tests; 7-4-6-1 Accessing the Probe Select Board Diagnostic Test Options; 7-4-6-2 ACW Test; 7-4-6-2-1 ACW IQ Symmetry Test

GE
P
ART NUMBER FN091065, REVISION 2 VS5 N AND VS6 N SERVICE MANUAL
Chapter 7 - Diagnostics/Troubleshooting 7-63
PRELIMINARY
7-4-6 Probe Select Board Diagnostic Tests
7-4-6-1 Accessing the Probe Select Board Diagnostic Test Options
• Access the Diagnostic Test window, as described in the 7-4-1 "Accessing the Front End Diagnostic
Options" on page 7-27.
7-4-6-2 ACW Test
7-4-6-2-1 ACW IQ Symmetry Test
NOTE: For a description of this test, refer to the information in - "ACW IQ Symmetry Test" on page 7-14.
NOTE: When performing this test, no probe should be connected to the system and nothing should be touching
the probe connectors!
1.) In the Diagnostic Test window, trackball to ACW IQ Symmetry Test in the list of ACW tests
available for selection from the Diagnostic Test Tree (see Figure 7-33 "Rx Test" on page 7-58) and
press Set. The ACW IQ Symmetry Test name is displayed under Execute; the relevant system
components to be tested are highlighted light blue in the Schematic View (PIB & PSB), as shown
below:
NOTICE
In order to access an individual board test, it is necessary to insert the service dongle from system boot-
up and enter the Service Password.
NOTICE
It is necessary to disable the Loop option where it should not be used.
After performing this test, you must re-boot the system and perform the DC Offset Calibration procedure
as described in “DC Offset Calibration” on page 7-27.
Figure 7-36 ACW IQ Symmetry Test