GE
D
IRECTION
FQ091019, R
EVISION
2
V
IVID Q
N S
ERVICE
M
ANUAL
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 (
).
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
.
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
) 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
.
