Atec Tektronix-WVR500 - Manual (Page 2)

WVR500 Waveform/Vector Monitor Service Manual 1–1
Specifications
This section contains a brief functional description of the WVR500 monitor,
followed by the characteristics tables.
Product Description
The Tektronix WVR500 monitor is a rasterizing television waveform/vector
monitor which outputs a display signal to a remote monitor or video switcher.
It has dual standard (NTSC and PAL) capability with the functionality of a
waveform monitor, vectorscope, and picture monitor. The instrument is 8 1/2
inch wide by 1 1/2 inch high by 17 inches long, weighing 4 1/2 pounds, fitting
the standard half-rack applications. The instrument can be powered from AC
lines ranging from 90-250 V.
The WVR500 monitor uses a proprietary rasterizer which displays analog-like
waveforms and vectors on the remote monitor simultaneously with the appropri-
ate measurement graticules. The rasterized waveform and vector displays can fill
the entire screen or be reduced to 1/4 sized windows overlaying the picture
monitor display. The picture monitor display cannot be resized.
Instrument operation is controlled by a microprocessor which polls the front-pan-
el switches. The front-panel switches are the momentary touch type, several of
which have lighted functional indicators. Many of the monitoring functions are
selected through the on-screen menus, which are entered by pressing front-panel
buttons.
Displays can come from two channels of unterminated composite video input
loopthrough connectors on the rear panel. An external reference input allows for
the connection of an external sync signal. The rear-panel remote connector
allows for full instrument operation from a remote location.
The Waveform display mode provides three standard sweep rates: 1 Line
(5
ms/Div), 2 Line (10 ms/Div), and 2 Field. The line-rate sweeps can be
magnified X10 to additional sweep rates: 1 Line Mag (0.5
ms/Div), and 2 Line
Mag (1
ms/Div). The 2 Field sweep is magnified by approximately X20. Vertical
gain is either fixed at X1 or X5, or variable from 50% to 120% of the input
signal amplitude. The signal filter selections are Flat (no filter) and Luminance
(low pass filter), which can be displayed separately or in a parade display in the
2 Line and 2 Field sweeps. The Line Select mode allows specific lines to be
viewed. The Amplitude Alarm mode provides automatic video level monitoring
by highlighting the portion of the waveform exceeding the 100 IRE (1.0 V PAL)
graticule line.