User Manual - TRS-RenTelco

Menu Descriptions
Command
Ch -Ch Skew
Color Bars
H Sync
Function
Setting or field
Description
Ch -Ch Skew is the phase relationship (time delay) among R, G, and B video outputs of the graphics subsystem.
Ch -Ch Skew
Measurement
Setup
Ch -Ch Skew
Results
Line Number
Average
Sets the video signal line number to measure. The default value
depends on the input signal format as set by
Configuration > Format, and assumes that the appropriate Matrix
image file is being used to generate the test signal.
Sets the number of acquisitions over which to calculate an
average measurement value.
Displays the Ch -Ch Skew for G to B, G to R, and B to R
channels values in (ns) and in (%) Pixel Clock. Results are
reported on the Measured tab, and if enabled, on the Relative,
Reference, and Limits tabs.
Color Bars measurement measures the GBR color bars of a VGA card in a PC. The Color Bars measurement
measures the amplitude level (relative to back porch) of each of the eight colors, that is, white, yellow, cyan, green,
magenta, red, blue, and black for each active channel.
Color Bars
Measurement
Setup
Color Bars
Results in mV
Line Number
Average
Sets the video signal line number to measure. The default value
depends on the input signal format as set by
Configuration > Format, and assumes that the appropriate Matrix
image file is being used to generate the test signal.
Sets the number of acquisitions over which to calculate an
average measurement value.
Displays the amplitude for the White, Yellow, Cyan, Green,
Magenta, Red, Blue, and Black colors on the G, B, and R
channels (24 measurements total). Results are reported on the
Measured tab, and if enabled, on the Relative, Reference, and
Limits tabs.
Sync is the pulse occurring from 2.4 V to 5.5 V at the beginning of each line. This pulse signal causes the monitor
to go back to the left side of the display and trace another horizontal line of picture information. This measurement
measures rise time, fall time, overshoot, undershoot, settling time, and monotonicity. This measurement measures
the steady -state voltage and current amplitudes of logic levels ‘1’ and ‘0’ at 2.21 kΩ and 301 Ω termination.
H Sync
Measurement
Setup
H Sync
Results
Line Number
Average
Sets the video signal line number to measure. The default value
depends on the input signal format as set by
Configuration > Format, and assumes that the appropriate Matrix
image file is being used to generate the test signal.
Sets the number of acquisitions over which to calculate an
average measurement value.
Displays the Polarity (Pos/Neg), Pulse Width (μs),
Sync Period (μs), Frequency (kHz), Rise Time (ns),
Fall Time (ns), Overshoot (%), Undershoot (%),
Overshoot S.T. (ns), Undershoot S.T. (ns), Monotonic Rise (Y/N),
Monotonic Fall (Y/N), Logic Level “1” (mV) @2.21 kΩ and
±8 mA, and Logic Level “0” (mV) @2.21 kΩ and ±8 mA. Results
are reported on the Measured tab, and if enabled, on the
Relative, Reference, and Limits tabs.
VM5000 Automatic Video Measurement Set User Manual 3-21