Atec Tektronix-VM5000 - Manual (Page 8)

Automated Video Measurement Set
VM5000
Preloaded and User-definable
Reference and Limit Files –
Tektronix supplies a set of default reference
and limit files for the supported video
formats for “out of the box” test functionality.
Option SD and HD have been preloaded
with SMPTE/EIA standard reference values
and Tektronix recommended tolerance
limit files. Option VGA has been preloaded
with VESA reference and tolerance limit
values based on the applicable timing
standards. The signal reference data
boosts test productivity by minimizing the
need to access separate standards or
quality documents. Files can be edited
with other spreadsheet programs to specify
customized target values, conformance
limits or go/no go manufacturing process
limits. Reference and limit files can be
auto selected by format (default), manually
specified or loaded automatically via pre-set
configuration files (.vmset).
Flexible Results Displays – To simplify
test results analysis, the VM5000 features
tabular results menus. Within each
parameter group, users can easily browse
measurement results, deviation from
reference, nominal (reference) value and
max/min tolerance limits for pass and fail.
Reference information and calculations
necessary to analyze and understand test
results are logically organized and readily
available. With limit testing enabled, non-
conforming test results are highlighted in
red, readily highlighting signal distortions
for further analysis.
Save and Recall Measurement
Configurations – Measurement configu-
ration settings can be stored, instanta-
neously recalled or easily copied to other
instruments. Factory default settings can
also be recalled, if necessary. Reference and
limit files are associated with configuration
files, and are automatically pulled in with a
recall configuration command. This feature
speeds and simplifies device testing with
multiple display output formats, as users
can configure, store and recall a set-up
for each individual format.
Reference Capture Utility – The output
of a “golden” DUT or reference test signal
generator can be conveniently captured
and stored as a reference file. This utility
enables current measurement results to
be readily compared with other measure-
ment results utilizing the tabular results
display screens in the results menus.
Sync Load Testing – Per VESA standards,
H and V Sync voltages must be measured
under V1 and V0 conditions with ±8 mA
current loads to ensure adequate power is
available to handle impedance variations
that may occur with connected displays.
Option VGA automates this test by pro-
viding loads with the remote control MIU.
Automatic Report Generator – A report
generator utility speeds test documentation
by creating an organized video measure-
ment report with the touch of a single
button. Test results, configuration settings
and signal reference data details are
summarized in the VM5000 test report.
Reports created in .pdf and .rtf formats
are organized and suitable for inclusion in
certification test results. For data analysis,
reports can be output in the form of a
.csv file, easily imported into spreadsheet
programs. Option VGA even includes
the option to embed waveform screen
captures into selected report formats.
Video Measurement Accessories
For convenience and enhanced test perfor-
mance, the VM5000 includes a logical set
of complementary video measurement
accessories that simplify connection,
termination and measurement. Custom
designed sync pick-off and sync combiner
accessories simplify measurement of TV
signals with Options SD and HD. Option
VGA includes a custom measurement
interface unit (MIU) that has been engineered
to enable precision, VESA compliant and
fully automated measurement for 5 channel
analog RGBHV signals. The MIU provides
termination, signal switching and a current
source/ sink, eliminating the need for ex-
pensive FET probes or manual switching
of cables during testing.
Addressing stringent requirements for
measurement accuracy, the MIU incorpo-
rates an innovative dual input path for
RGB and HV channels in order to deliver
optimized accuracy for both DC amplitude
Video Measurement • www.tektronix.com/video 8
Reference and Limit Test Configuration Menu.
VM5000 Test Report.
Option VGA – Analog RGBHV Measurement
Interface Unit (MIU).