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Page 8

Model 822S Quick Start Guide

You can also start the procedure by sending the
following command string to the generator’s comm port
while the unit is running:

 

AVCM 1; fmtu 

<carriage return>

Details on the connections can be found on a later
page.

2) The LCD will display a prompt asking you to make
the connections for calibration.

5) Connect the 50 Ohm feedthrough terminators and
two 50 Ohm coaxial cables as shown. The calibration
routine can compensate for small losses in the cables
normally with the generator if they are used for the self
calibration connections.

4) Rotate the Image knob to start the self calibration
operation.

5) Self calibration takes about one minute per module.
The LCD will show a progress report during this time.
Any messages indicating that the unit could not bring
an adjustment within calibration may indicate a
problem with your connections or with the module
itself.

Special Operating Modes

Self Calibration of Analog Output Levels

 (continued)

Summary of Contents for 822S

Page 1: ...uter 9 Specifications 10 Support and Service ContactInformation 12 Quick Start Guide This Quick Start Guide is designed to help you get up and running This Quick Start Guide is designed to help you get up and running quickly with your video generator Detailed information on quickly with your video generator Detailed information on programming and operating the generator via its communications prog...

Page 2: ...50 Ohm Differential ECL Start of Line Pulse Output 75 Ohm TTL Level Start of Frame Pulse Output 75 Ohm TTL Level NOTES 1 AC Mains power must be turned off while removing or installing any module Failure to do so may cause damage to the mainframe and or module Such damage is not covered by the product or service warranties 2 All modules contain electrostatic sensitive components Proper static preve...

Page 3: ...ation ringing undershoot and or overshoot of the test signals The following figures show suggested methods for connecting the video generator to displays having 50 and 75 Ohm input impedances in both differential and single ended modes of operation 50 Ohm Differential 75 Ohm Differential 75 Ohm Single Ended 50 Ohm Single Ended ...

Page 4: ...ndard video formats This is a common library shared by all our Model 801 802 and 822 series video generators As part of the factory initialization of each unit the firmware scans all of the library formats for compatibility with a given model and hardware configuration All compatible formats are added to the knob list 2 The firmware includes a library of over 100 built in test images patterns This...

Page 5: ...e the buttons to gate colors or change sync gating when the probe pulse feature is active The number after P is the position of the probe on a given scan line relative to the leading edge of horizontal sync measured in pixel clock cycles The number after L is the number of the scan line relative to the leading edge of vertical blanking For interlaced formats the line number is relative to the star...

Page 6: ...mputer Operation of Probe Pulse Feature The probe pulse can be controlled by sending commands to the generator via either its serial or GPIB IEEE 488 ports The commands are Probe Sync Pulse Gate PSPG 0 Disable Pulse 1 Enable Pulse Probe Sync Pulse Polarity PSPP 0 Active Low Pulse 1 Active High Pulse Probe Sync Pulse Width PSPW In pixels sets the width of the active portion of the probe pulse Limit...

Page 7: ...deo output module on the Model 822S has a built in precision voltage reference and comparator They permit the video output levels to be easily and accurately self calibrated using just test cables and 50 ohm terminators The cables and terminators are not supplied as a standard accessories with the 822S 1 Momentarily hold down both buttons for about 5 seconds during power up to enable re initializa...

Page 8: ...50 Ohm coaxial cables as shown The calibration routine can compensate for small losses in the cables normally with the generator if they are used for the self calibration connections 4 Rotate the Image knob to start the self calibration operation 5 Self calibration takes about one minute per module The LCD will show a progress report during this time Any messages indicating that the unit could not...

Page 9: ...M software package is supplied with this unit It is the primary method of program ming custom video formats and test images in the Model 822S video generator It can also be used to operate the unit The current version of VGM software is available to run under MS Windows 95 98 NT The current version only supports communication with the 822S via a serial port connection The VGM software includes a h...

Page 10: ...1 to V tot V act VS pd lines analog 1 to V tot VS pd lines digital Step 1 line Analog Video Outputs Encoding RGB YPrPb SMPTE 240 M HDTV YPrPb SMPTE RP177 Improved SMPTE 240 M YPrPb ITU R BT 709 Modified SMPTE RP177 YCrCb SMPTE 170 M or ITU BT 601NTSC DAL hybrid YYY Multi channel grayscale Outputs 50 ohm SMA Outputs can be connected to 75 ohm single ended or differential BNC display inputs using 15...

Page 11: ...upplied that lets you use the 822S command library in your C application Computer Ports GPIB INTERFACE Protocol IEEE 488 2 Connector 24 position microribbon SERIAL INTERFACE Type RS 232C Baud Rates 300 thru 38 400 Data 7 8 Stop 1 2 Parity none odd even Handshake none RTS CTS Custom Formats Storage 300 built in formats Edit method with VGM software Miscellaneous AC MAINS Frequency 48 to 440 Hz Sinu...

Page 12: ...50 Facsimile 847 888 2802 Website www quantumdata com Product Support and Service Toll free telephone number in USA 1 888 252 6133 From all other countries 1 847 888 0450 then select option 3 E Mail support quantumdata com Manual Part 68 00183 Rev C Entire Contents Copyright 1999 Quantum Data Inc All rights reserved ...

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