|Tektronix WVR500 Analyzer|
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. The Vectorscope display mode displays signals with the standard vectorscope color bars amplitude and phase relationships. The vector display can also be used to make differential gain and phase measurements. The +V display (PAL only) overlays the –V axis on the +V axis to check the PAL system color encoders. A full 360_ digital phase shifter, with 75% and 100% color bars settings, and variable gain are provided. The Picture Monitor display mode displays the video input signal as a picture. The brightness, contrast, hue, and chroma of the display are set internally and are not adjustable. The Waveform-in-Picture display mode displays the Waveform Monitor and/or the Vectorscope displays in 1/4-screen sized windows overlaying the Picture Monitor display. The reduced displays can be made semi-transparent for full viewing of the Picture display.
These manuals are available for the above equipment:
|Tektronix -- WVR500 -- Service Manual|
|Manual Type:||Service Manual|
|Size:||984.19 Kbytes (1007810 Bytes)|
|Quality:||Electronic document, no scan, very well readable.|
|Upload date:||30 December 2017|
|Downloads:||85 since 30 December 2017|
This manual provides servicing information for the WVR500 monitor. Material found in this volume is targeted at the service technician; detailed operating information can be found in the WVR500 Waveform/Vector Monitor User Manual. Service Level Supported. This manual supports only Module Level (for module exchange) servicing. Module Level servicing utilizes the block diagram and its descriptions to isolate a problem to the circuits on a particular etched circuit board. Specific Content. Some of the information in this manual is shared with the user manual; however, the depth of the material depends on the potential use. A quick comparison will reveal that there are installation instructions in both manuals, along with specifications, servicing, and operating instructions. The operating instructions in the user manual are much more detailed than those in the service manual. The need for a service technician is considerably less than that of an end user. If the operating instructions in this manual are not complete enough, please refer to the user manual for more detailed instructions. The specifications contained in the Specifications section of this manual should be used by the servicing technician. The specification tables contain step numbers that cross reference to the Performance Verification section step numbers to make it possible to document the test methods used to verify the accuracy of the instrument. Sections of this manual include the replaceable parts list, troubleshooting procedures, and removal and replace procedures needed to isolate and replace faulty modules. Replacement part ordering information can be found in the Replaceable Parts section of this manual.
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