GE FQ000040, Руководство по обслуживанию

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GE
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FQ091019, R
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2 V
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ANUAL
7-68 Section 7-4 - Performing Front End (FE) Diagnostics
7-4-5-2-3 ACW Delay Range Test
NOTE: For a description of this test, refer to the information in "ACW Delay Range Test" on page 7-13 .
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 Delay Range Test in the list of ACW tests
available for selection from the Diagnostic Test Tree (see Figure 7-41 below ) and press Set . The
ACW Delay Range Test name is displayed under Execute; the relevant system components to be
tested are highlighted light blue in the Schematic View (P&M), as shown below:
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.) 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.
4.) Trackball to the Start button and press Set .
The ACW Delay Range Test commences. While the test proceeds, the name of the test currently
in progress (ACW IQ Delay Range Test) is displayed in the
Execute field and the current Loop #
and specific test are shown below. The messages Init Done and Please Wait are displayed beside
the progress bar in the Status area.
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 7-25 .
Figure 7-41 ACW Delay Range Test