GE
P
ART NUMBER FN091065, REVISION 2 VS5 N AND VS6 N SERVICE MANUAL
7-50 Section 7-4 - Performing Front End (FE) Diagnostics
PRELIMINARY
7-4-4 TR 32 Diagnostic Tests (cont’d)
7-4-4-2-2 System BF Digital Test
NOTE: For a description of this test, refer to the information in “System BF Digital 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 System BF Digital Test in the list of TR32, BF tests
available for selection from the Diagnostic Test Tree (see Figure 7-10 "CD Offset Verification Test"
on page 7-30) and press Set. The System BF Digital Test name is displayed under Execute; the
relevant system components to be tested are highlighted light blue in the Schematic View (TR32A.
TR32B), 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.) 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.
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.
Figure 7-25 System BF Digital Test
To Next Page
Loading...
