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IRECTION FQ091019, REVISION 2 VIVID Q N SERVICE MANUAL
Chapter 7 - Diagnostics/Troubleshooting 7-25
7-4-1 Accessing the Front End Diagnostic Options
• In 2D-Mode, press <ALT +Config> on the alphanumeric keyboard. The Diagnostic Test window is
displayed, as shown in (Figure 7-1).
7-4-2 Calibration Tests
7-4-2-1 DC Offset Calibration
NOTE: For a description of this test, refer to the information provided in "DC Offset Calibration" on page
7-11.
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 DC Offset Calibration in the list of Front End tests
available for selection from the Diagnostic Test Tree (see Figure 7-7 below) and press Set. The DC
Offset Calibration name is displayed under Execute; the relevant system components to be tested
(in this case, all components) are highlighted light blue in the Schematic View as shown below:
Figure 7-7 DC Offset Calibration Test
2.) As indicated in the Special Instructions area, disconnect any probes currently connected to the
system and make sure that nothing is touching the probe connectors.
3.) Under the Special Instructions area, activate the Loops checkbox
and select the required number of Loops from the combo box.
4.) Adjacent to On Fail, select either Stop or Continue, as required.
Stopping on failure enables you to review a failed test, the moment it fails. Alternatively, you may
prefer testing to continue on failure and later you may review the report.
5.) Trackball to the Start button and press Set.
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