Quantum Data 701A User manual
700A Series
Portable Video
Test Generators
Quick Start Guide
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Model 700A, 701A Video Test Generators
Quick Start Guide
Contents
Getting Started.....................................................................................................................................................3
Computer Interfaces ..........................................................................................................................................4
User Interface........................................................................................................................................................5
Selecting Formats ...............................................................................................................................................6
Selecting Images .................................................................................................................................................7
Gating Outputs ....................................................................................................................................................7
Setting Power Save Preferences ....................................................................................................................8
Calibrating Generator ........................................................................................................................................9
Adjusting Horizontal Scan Frequency ......................................................................................................11
Detecting Formats Supported by a Monitor.......................................................................................... 12
Using Test Sequences ..................................................................................................................................... 13
Testing Audio..................................................................................................................................................... 15
Testing HDCP Interfaces ................................................................................................................................ 15
Generating Psuedo Random Noise............................................................................................................ 16
Using Video Generator Manager ................................................................................................................17
Creating Video Formats.................................................................................................................................. 18
Modifying Test Sequence .............................................................................................................................. 19
Pattern Descriptions........................................................................................................................................ 20
Updating Firmware.......................................................................................................................................... 24
Specications..................................................................................................................................................... 25
Service and Support Contacts .................................................................................................................... 26
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Getting Started
Using AC Power
Use only the AC adaptor provided with the generator to avoid operator injury and damage to the gen-
erator.
Using Battery Power
The generator uses six AA rechargeable nickel metal hydride (NiMH) batteries, which can be recharged
about 1000 times.
You may use alkaline batteries instead, but not while the AC charger is connected to the generator. Only
NiMH batteries can be safely recharged in the generator.
All batteries in the generator must be the same type.
The supplied batteries may not come fully charged. Use the supplied AC charger to charge the batteries
for at least 18 hours. The AC adaptor may be used to operate the generator and to recharge the batter-
ies at the same time.
With fully charged batteries, the generator should operate for about 8 hours using VESA mode. Using
the LCD backlight, DVI, NTSC/PAL, or RF features will reduce the battery life. The generator displays a
low battery message when the NiMH batteries need recharging, or when the alkaline batteries need to
be replaced.
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Computer Interfaces
DVI interface on 700A
outputs analog signals
only, using included
DVI-to-VGA adaptor.
(Active on 701A only)
SDI/HD-SDI
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User Interface
LCD Display
The LCD window displays messages and menu options.
Function Buttons
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Selecting Formats
Viewing Formats by Signal Type
Press the Signal Type button, and then select a signal type, to list formats based on the selected signal
type.
VESA Red, green, blue component color video
per VESA standards. (DVI-to-VGA adaptor
used for outputs.)
NTSC/PAL Composite color baseband video
signal (BNC connector) and Separate Lu-
minance and Chrominance video signals
(S-Video connector) or RGB component video per NTSC and PAL standards.
Names of formats using modulated RF output end with _Cnn, where nn is the NTSC-M or PAL-G
television channel used.
HDTV/SDTV-RGB Luminance plus color difference signals per HDTV standards
HDTV RGB RGB component color video signals per HDTV standards
HD/SDI Digital video signals (701A only)
USER User-dened formats, of any type, stored in non-volatile memory
Selecting Formats
Press the Format button to select from a list of video formats of the type selected from the Signal Type
menu.
Reloading Standard Formats
If you modify or delete standard formats, you can restore the original formats by reloading the standard
formats.
To reload the standard formats:
1. Select Options > Clr_Fmts to delete all formats, including user-created formats.
2. Select Options > Reload Fmts to restore the standard formats to their original memory locations.
The standard formats will replace any user-created formats in the original memory locations. User-
created formats in locations not previously occupied by a standard formats will not be replaced.
HD/SDI
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Selecting Images
Gating Outputs
Press the Gating button to gate outputs, and to switch sync types.
Note: Color gating works for all images except Ramp.
Selecting Images
Press the Image button to select from list of available test images (patterns).
You cannot modify the images, or add your own
images.
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Options Menu
Press the Options button to set system-level options.
Setting Power Save Preferences
Hot Plug:In
Setting Power Save Preference
When the Power Save preference is on, and the generator is on battery power, the generator will turn
off after 30 minutes of no front panel activity.
If the generator is running a test sequence in Burn-in mode, the Power Save preference is ignored.
To set the Power Save preference, select Options > Pwr Save.
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Calibrating
Model 700A and 701A generators use programmable hardware to set the amplitude calibration factors
for analog video outputs. These calibration factors are stored in Flash EPROM, and are not lost if the
batteries are run down or removed.
Quantum Data calibrates the analog video and sync output amplitudes in new generators to published
specications. You can recalibrate these amplitudes over a nominal range to meet your specic testing
conditions.
WARNING: Recalling the original factory calibration settings is not possible after saving
your own settings.
Equipment Needed for Calibration
•DC voltmeter capable of measuring from 0 to 1 volt with a minimum resolution of 2 millivolts
•Precision 75 ohm (+/- 1%) input terminator for the voltmeter
•Test cable to connect the voltmeter to the R, G, B and ground pins on the VGA connector
•Oscilloscope with a precision 75 ohm (+/- 1%) input impedance and suitable gain and bandwidth to
display a 1.00 Volt pk-pk signal with 3.579 MHz color carrier
•75 ohm coaxial cable to connect the oscilloscope to the BNC TV output
•Vector scope
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Calibrating
Calibrating Outputs
1. Select Options > Calibrate > Reset to set the generator’s calibra-
tion factors to default nominal values.
2. Press Options > Calibrate > Full Scale.
3. Set the voltmeter’s scale factor to be able to measure a nominal
1000 millivolts DC.
4. Using a VGA-to-BNC cable, connect the generator’s red output to
the positive input on the voltmeter, with a 75 ohm (+/- 1%) input
terminator. Connect the negative lead of the meter to any ground
pin.
5. Select R_FS+ or -R_FS to set the DC output level to 1000 mV
+/- 3 mV.
6. Repeat steps 4 and 5 for the green and blue outputs.
7. Select Save.
8. Select Options > Calibrate > Zero.
9. Connect the red output to the positive input of the voltmeter.
10. Select R_Zero+ or -R_Zero to set the DC output level to 0 mV +/- 3 mV.
11. Repeat steps 9 and 10 for the green and blue components.
12. Select Save.
13. Select Options > NTSC_CAL.
14. Adjust the oscilloscope’s timebase and sweep trigger to view the entire waveform. Adjust the G_
NTSC so that its chrominance is 100 IRE or 714mV.
15. Using a vector scope, use the R_NTSC and B_NTSC options to adjust the red and green outputs
using so that their signals align with the 2% boxes.
16. Press Save.
Note: The modulated RF output does not have any calibration settings.
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Calibrating
Locking Calibration Settings
The generator uses an internal hardware jumper to enable and disable changes to calibration settings.
If the Options > Calibration option is available, the jumper is set to enable re-calibration.
To prevent users from changing calibration settings:
1. Turn the generator off, and remove the back cover.
2. Locate the J10 jumper, which is near the lower-right corner of the board.
3. Connect the jumper to only one pin to disable user calibration. Connect both bins to enable user
calibration.
4. Install the back cover.
Adjusting Horizontal Scanning Frequency
Select Test > Freq Shift, and then press the +/- buttons to increase or decrease the horizontal scan-
ning frequency of the current video format +/- 10% in 2% increments. The ^character indicates the
percent deviation. The bottom number is the actual frequency.
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Learn Monitor
If the generator is connected to a VESA DCC-
compliant display, press the Learn Monitor
button to view formats supported by both the
display and generator.
To view the format names, select the Details
option after the generator completes reading
the EDID (Extended Display Identication Data)
data. The display’s EDID data may include non-
VESA formats, which are not listed.
You cannot select formats from this list, but the
DDC Step feature can be used to test the listed
formats (page 14).
Detecting Formats Supported by a Monitor
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Test Menu
Press the Test button to select special test operating modes.
Using Test Sequences
Running Test Sequence Manually
The generator includes a test sequence, which species a series of format and image combinations. To
run the test sequence, select Test > Sequence > Run, and then press the +/- buttons to step through the
sequence. Use the menu buttons to gate video color information, change sync types, and turn all signal
outputs on and off.
You can use VGM to modify the test sequence (see page 19).
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Running Test Sequence in Burn-In Mode
Select Test > Burn-In > Run to automatically cycle through the test sequence. When the Burn-In mode
is stopped, you can use the menu buttons to gate video color information, change sync types, and turn
all signal outputs on and off.
NOTE: The Burn-In mode disables the Power-Save feature, if enabled.
Creating Test Sequence for DDC Displays
If the generator is connected to a VESA DCC-compliant display, press the Learn Monitor, and then Test
> DDC Step to setup a test of each format supported by the display.
Press the +button to render the current image with each video format supported by the display.
Press the -button to render all images at the current format.
Select the Run option to automatically test all images for each video format.
When using automatic mode, select Stop to use manual mode.
Using Test Sequences
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Testing Audio
Select Test > Audio to independently toggle stereo audio output channels on and off.
On a 701A generator, the left channel is also the monophonic audio source for the modulated RF out-
put.
Testing HDCP Interfaces
Model 701A video test generators may be equipped with an optional production (private) key for testing
High-bandwidth Digital Content Protection (HDCP) interfaces of DVI receivers that support HDCP. For
more information about HDCP, see http://www.digital-cp.com/.
To output HDCP-encyrpted video content:
1. Connect the DVI connector of the generator with the DVI connector of the device under test.
2. Choose a DVI video format supported by the device.
3. Press Test > HDCP > Start to output HDCP encrypted content.
The display on the generator indicates if the test passed or failed. If the test passed, the currently
selected pattern is displayed on the device under test. Noise is displayed if the HDCP authentica-
tion failed.
After the initial authentication of the connection is established, the generator displays the number of
authentication verciation cycles until you stop the test.
During the test, if you reconnect the cable or restart the device under test, the test should restart
automatically.
4. To stop the test, press the Exit soft key or any gray key.
Special Tests
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Special Tests
Generating Pseudo Random Noise
When the generator is connected to a device that supports the Quantum Data pseudo random noise
standard, press Test > PR Noise to output the noise pattern as a static image. Depending on how the
device is designed, it may compare the pattern output by the generator with an identical pattern, created
internally, to detect errors in the cable and in the device itself.
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About VGM
Video Generator Manager (VGM) is a Windows-based application for creating and editing formats and
test sequences. As many as 132 formats and one test sequence can be stored in the generator.
VGM was originally created for use with Quantum Data 80x video generators. The 700A-Series genera-
tors support only some VGM features. For information about using VGM, see the VGM help le.
VGM Quick Tour
1. Connect the generator to your computer using a null modem serial cable.
Note: You may not be able to connect to the generator when it is Power Save mode.
2. Start VGM, and then select Generator > Connect.
3. In the Select Port dialog box, select the Serial option, and then click OK.
The name of the connected generator is listed in the bottom half of the VGM window.
4. Click the View Formats icon to view the formats available in the generator, and then double-
click the format you want the generator to use.
5. Click the Image List icon to view the available images, and then double-click the image you
want the generator to use.
Using Video Generator Manager
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Creating Video Formats
Editing Video Formats
You can use VGM to create your own video formats. You can start with a default format in the VGM
format editor, or copy an existing format.
To create a video format:
1. Connect the generator with VGM, and then double-click the generator name.
2. Click the View Formats icon to list the available formats.
3. Right-click a format that is similar to the format you want to create, then select Copy to create a
copy of the format. The name of the new format can be based on the original format, followed by an
underscore and number. But you can use any name.
4. Right-click the copied format in the format list. Select Edit, and then click Yes to open the Format
Editor.
5. Specify the format parameters.
The format editor works as described in the VGM help le, except unlike our other models, the 70x
generators store formats by specic numeric locations, and not by name. The integer portion of
the eld dening the horizontal size in millimeters species the storage location of the format in the
generator. The physical size entries have no affect on how test images are displayed on the 700A
series.
For example, if you want to save the new format in the location “empty35”, you would enter 35 to
the left of the decimal point in the eld for the horizontal size in millimeters. If you do not change
this number, the edited format will replace the previous version of the format (the one you copied
to use as a basis for your custom format) when you upload it back to the generator. You will not get
any warnings that you are about to overwrite a memory location.
Note: If you do overwrite the format, you can recover the original default format by rst clearing
formats and then reloading formats.
6. Select File > Save to save the format on your PC, and then close the Format Editor window.
7. In the VGM data pane, select the format, and click the Send Data icon to store the format on
the generator.
8. Reload the formats.
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Modifying Test Sequence
Editing the Test Sequence
The generator has a default sequence, which you can edit in VGM. One sequence can be stored in the
generator at the same time.
To modify the test sequence:
1. Connect the generator with VGM, and then double-click the generator name.
2. In the generator window, click the Sequence List icon to display the sequence name.
3. Right-click the sequence name, and then select Edit to open the Sequence Editor.
4. Select the 700A generator from the Generator list. Do not select the virtual generator.
5. Modify the test sequence.
VGM help describes the basic operation of the Sequence editor. Specify only a format and image
for each step. Do not use the No Change value. The 700A-Series generators do not support the
output gating and sync options, and the No Change value.
6. Select Edit > Edit Sequence Name to save the sequence as a new sequence le.
7. Select File > Save to save the sequence on your PC, and then close the Sequence Editor.
8. In the top half of the main VGM window, select the sequence, then click the Send Data icon to
store the sequence on the generator.
To run the test sequence, see page 13.
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Flat_Wht/(R,G,B)
Description - Fills the screen with white, blue (B), green (G) or red (R).
Application - Use to test chrominence.
Grid
Decription - White crosshatch on a black background. The lines form square boxes. A single pixel dot is
located in the center of each crosshatch box.
Application - Use the Grid pattern to test convergence. To accurately produce an image on a color moni-
tor, the three electron beams in the CRT must meet (converge) at the same location at the same time.
Lines displayed on a misconverged monitor appear as several multi-colored lines, and the transitions
between different colored areas contain fringes of other colors.
Rev_Grid
Description - Black crosshatch drawn on a white background. The lines form square boxes.
Application - Use to test convergence. To accurately produce an image on a color monitor, the three
electron beams in the CRT must meet (converge) at the same location at the same time. Lines dis-
played on a misconverged monitor appear as several multi-colored lines, and the transitions between
different colored areas contain fringes of other colors.
Overscan
Description - The image has three parts. The rst part consists of ve white circles. A large circle is
drawn in the center of the screen. Its diameter equals the lesser of the video height or width of the
display. A circle also is drawn in each of the corners of the screen. The diameter of the corner circles
equals one-fth of the display width.
The second part of the image consists of a white crosshatch. The number of boxes in the crosshatch
depends on the physical size of the display.
The last part of the image consists of white tic marks on the horizontal and vertical center lines of the
image. The marks are one pixel thick. Every other mark is slightly longer. The color of the pattern can be
changed with the individual video output controls.
Application - Used for detecting non-uniformity and non-linearity. The image presents an undistorted
display, the horizontal and vertical sweeps of the electron beam across the face of the CRT should be
at uniform speeds. Any non-uniformity in the sweep causes portions of an image to stretch while other
portions are compressed. Non-linearity in a monitor shows up in several ways. It may be present across
Pattern Descriptions
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