GE
P
ART NUMBER FN091065, REVISION 2 VS5 N AND VS6 N SERVICE MANUAL
4-26 Section 4-3 - Functional Checks
PRELIMINARY
2
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.
5 Trackball to the Start button and press Set
The test commences.
When the DC Offset Verification Test sequence is
complete, the View Test Log window opens
automatically, listing the test performed and showing
whether it passed or failed - see the example in Figure
7-11 on page 7-31.
6
Use the scroll arrows at the bottom of the Reports
window to scroll through the channels and view the
corresponding results.
FULL RFI TEST
Note: For the Full RFI test, four tests are performed in
the test sequence; these are listed in the Tests window.
For each currently-selected test (for example, RFI FE
Cache Test) the corresponding report is listed in Reports
on the right.
1 Trackball to Full RFI Test and press Set.
2
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.
5 Trackball to the Start button and press Set
The test commences.
When the Full RFI Test sequence is complete, the View
Test Log window opens automatically, listing the test
performed and showing whether it passed or failed -
see the example in Figure 7-12 on page 7-33.
6
Use the scroll arrows at the bottom of the Reports
window to scroll through the channels and view the
corresponding results.
For details of each report, refer to the following for
explanations:
- ‘View Test Log - RFI Cache Test” on page 7-37
- ‘View Test Log - RFI Demodulator Short Test” on
page 7-43
- ‘View Test Log - RFI Analog Circuits Test” on page 7-
40
- ‘View Test Log - RFI Audio Test” on page 7-46
BEAMFORMER TESTS
TR32 BF Digital Test
Table 4-12 Front End Tests (cont’d)
Step Task Expected Result(s)
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