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To quickly find
information on the
topics shown on the
right, just match the
black bars with the
black markers on
the edges of the
pages in the
manual.
Table of Contents
1.Introduction
2.Basic Operation
3.Built-In Formats
4.Built-In Images
5.Making Connections
For more
information on the
contents of each
chapter, please
refer to the table of
contents starting on
the next page.
To locate
information on a
specific subject,
please refer to the
index at the end of
this manual.
Model 801GC, 801GF & 801GX
OwnerÕs & Programmers Manual
Part# 68-00157 (rev. A 21-Feb-96)
6.Programming
7.Troubleshooting
8.Error Messages
9.Maintenance
9.Service
Appendices
Index
Table of Contents
i
Trademark Acknowledgments:
Quantum Data is a registered trademark of Quantum Data Corporation.
IBM is a registered trademark of International Business Machines Corporation.
Macintosh and Apple are registered trademarks of Apple Computer, Inc.
Microsoft and MS-DOS are registered trademarks of Microsoft Corporation.
MultiSync is a registered trademark of NEC Home Electronics, Inc.
Radio Shack is a registered trademark of Tandy Corporation.
Other products or company names mentioned are registered trademarks or trade-
marks of their respective companies.
iiTable of Contents
Models 801GC, 801GF & 801GX ¥ Rev. A
Chapter 1:Introduction1-1
Features ..................................................... 1-2
✓ low cost
✓ portable - fits in a briefcase
✓ ultra-simple controls
✓ ultra-fast format-loading & image-drawing
✓ color NTSC and PAL compatible composite and
S-video outputs on the 801GX
✓ self calibrating analog video outputs
✓ industry-standard output connectors
✓ display and edit formats on the unit under test
✓
over 100 industry-standard signal formats built-in
✓ room for up to 300 user-defined formats
✓ programmable pixel rates up to 150 MHz on the
801GC and 801GX; up to 250 MHz on the 801GF
✓ over 50 test images built-in
✓ custom test images can be created and saved
✓ user defined format-image test sequencing
1-2Chapter 1: Introduction
Model 801GC, 801GF & 801GX ¥ Rev. A
Product Overview
The 801G series are low-cost portable video signal
generators designed for basic testing and alignment
of various types of raster-scanned displays. This
manual covers the 801GC, 801GF and 801GX models. Information that mentions the “801G*” applies
to all three models.
Formats
A format is a set of
specifications that
describe the video
signal required by a
particular type of
display.
Images
Controls
The generator is shipped with over 100 signal formats in place for driving a variety of industry-standard displays. Formats for other displays can be
added using the built-in graphics user interface editor
or a personal computer or terminal via the built-in
RS-232 and IEEE-448 interfaces.
Formats are stored in a non-volatile memory. This
memory has room for up to 300 formats. Permanent
copies of industry-standard formats are stored (along
with the generator's operating code) in EPROM and
can be copied into format memory and modified as
required.
The 801G* features over 50 test images that allow a
wide variety of display criteria to be checked. The
generator has an image loop feature that can be used
for monitor burn-in or at trade shows to display a
series of images over and over. User defined custom test images can also be created and saved in
non-volatile memory.
The number of controls on the 801G* has been minimized to insure simple operation. Two knobs and 8
lighted push-buttons provide complete control of the
generator. One knob selects the video signal format.
A second selects the test image. Three push-buttons
gate the individual video components on and off.
Another three push-buttons select any of three available synchronizing signals. A seventh button allows
all of the outputs of the generator to be turned on
or off with a single key stoke. Finally, an image
stepping button is provided that calls up alternate
versions of some images.
Product Overview
1-3
Connectors
The output connectors on the 801G* match those
found on popular computers and video systems.
These connectors eliminate the need for expensive
and bulky conversion cables.
1-4Chapter 1: Introduction
Model 801GC, 801GF & 801GX¥Rev. A
Chapter 2:Basic Operation
Operating Modes
Displays & Indicators
Knobs
Switches
Buttons
2-1
Introduction
Operating Modes
This chapter gives you a basic overview of the
Quantum Data model 801G*’s front panel operating
modes and how the displays and controls function
in the normal operating mode. Other chapters in this
manual cover topics that you may need to know in
order to operate the unit. Please refer to the table of
contents or index to locate additional specific information on how to use the 801G*.
Front panel operation
The current firmware supports three main modes of
front panel operation:
Normal Format
and Images
Selection Mode
2-2Chapter 2: Basic Operation
• Normal signal format and test image selection.
All knobs and pushbuttons function as labeled.
The upper knob is used to select formats from
a list of formats stored in non-volatile memory.
The lower knob selects test images (patterns)
from a list of built-in and user created images.
This is the factory default setting for how the
generator will operate on normal power-up.
This mode is suitable for use by engineering
and service groups that need to be able to
quickly select any combination of format and
test image that they may need.
It is also possible to set the 801G* to continuously cycle through the test image list using a
given format in this mode. This can be used
for burn-in testing or for running single mode
displays at trade shows.
Model 801GC, 801GF & 801GX ¥ Rev. A
Test Sequence
Mode
• Running a user defined test sequence. Each step
in a test sequence combines one format and
one test image. The operator can then go forward and backwards through the steps using
a single knob. The 801G* can be programmed
so that it automatically enters a test sequence
mode on power-up. This mode of operation is
suitable for a test position in a manufacturing
environment where the same series of tests and
adjustments need to be repeated on many identical displays. There is less likelihood that an
operator on the line will select the wrong format or skip an important alignment procedure.
It is also possible to set the 801G* to continuously cycle through the steps in a test sequence.
Information on creating and running test sequences is contained in the “Programming”
chapter.
Programming
Mode
• Programming mode. Formats, the format list,
custom images, the image list and test sequences
can be created and edited using the built-in
Graphics User Interface (GUI). In order to use
the GUI, a display that is compatible with any
stored format and has at least 640 active pixels and 480 active lines needs to be connected
to the 801G*. The contents of the format, custom test image or test sequence are shown on
the display. The 801G*’s knobs and buttons are
used to select and modify the displayed parameters. The current button functions are
labeled at the bottom of the GUI screen. No
other hardware, other than the display, needs
to be connected to the 801GX.
Information on using the GUI editors is in the
“Programming” chapter.
Switching operating modes
The “Programming” chapter contains information on
switching between the operating modes.
Introduction and Operating Modes
2-3
Displays and Indicators (Normal Mode)
The figure below shows a typical LCD display in
the normal operating mode. Please see the “Troubleshooting” chapter of this manual if the LCD is showing different types of information.
This light is on whenever the 801G*; is plugged into
a live AC outlet and the power switch is ON.
The horizontal scanning frequency rounded to the
nearest kHz.
The format’s position on the Format knob list.
❖A "=" sign appearing between the memory loca-
tion and name indicate the current state and saved
state exactly match. Pressing some keys may
modify the current state so that it no longer
matches the saved version.
The name of the current signal format.
A ( ’ ) mark at end indicates a justified format.
The name of the current test image.
The image’s position on the Image knob list.
❖An "m" appearing to the left of the image loca-
tion indicates monochrome analog video.
The vertical scanning frequency (field rate) rounded
to the nearest hertz.
2-4Chapter 2: Basic Operation
Model 801GC, 801GF & 801GX¥Rev. A
Knobs
Format Knob in
Normal Mode
Format Knob in
Other Modes
Image Knob in
Normal Mode
The format knob is normally used to select a signal
format. A format is a set of parameters that specify
the video and sync signal requirements of a particular display. Format parameters include timing,
sync type, video type, display size, etc. By turning
the knob, you can scroll through a list of formats
stored in non-volatile memory. The list includes many
factory default formats. You can edit the list as well
as add formats that you create. A new format is
loaded with each click of the knob. Loading a format redraws the current test image and updates the
LCD. If you select a format containing erroneous
information, the outputs of the generator are automatically turned off and an error message is displayed. The knob performs other functions when
the editors are being used.
The format knob performs other functions when the
801G* is operated in the either the test sequence or
GUI programming modes. Please see the “Programming” chapter for detailed information on operating the 801G* in the other modes.
The image knob is normally used to select a test
image. The exact behavior of the knob depends upon
the status of the “Image” push-button. Turning the
knob when the button is not lit scrolls through the
main list of test images. The knob performs other
functions when the editors are being used.
❖Not all images are supported by all signal for-
mats. Some images in the main image list may
be skipped while certain formats are present. For
example, the ColorBar image will be skipped
whenever a monochrome format is present. If
the currently selected image cannot be drawn
given a newly selected format, the Outline image is automatically drawn after the new format
has finished loading.
Displays, Indicators & Knobs
2-5
Some of the image names in the main list may refer
to a sub-set of two or more different images. The
images in the sub-sets are selected by first selecting
the name of the desired sub-set from the main image list. If the sub-set consists of just two images,
pressing the “Image” button will toggle between the
two images. The button is lit when the second image is showing.
If the sub-list consists of more than two images, the
“Image” button is first lighted by pressing it one
time. The image knob can then be used to select
images from within the sub-set. The image name on
the LCD will not change. Pressing the “Image” button a second time will will return the “Image” knob
to normal operation.
❖If there is only one test image associated with a
name in the image list, the “Image” button can
not be turned on for that image.
All of the built-in test images (and their uses) are
covered in detail in the “Images” chapter.
Image Looping in
Normal Mode
Image Knob in
Other Modes
2-6Chapter 2: Basic Operation
• A continuous cycling mode can be selected that
draws images one-after-another in an infinite
loop. This mode is activated by rotating the
image knob clockwise beyond the last image
in the image list about one turn. When activated, the message “Loop Enabled” is displayed
on the unit under test. After a second or two,
the first image in the cycle appears. Turning
the image knob counter-clockwise will stop
image looping.
The image knob performs other functions when the
801G* is operated in the either the test sequence or
programming modes. Please see the “Programming”
chapter for detailed information on operating the
801G* in the other modes.
Model 801GC, 801GF & 801GX¥Rev. A
Switches
The 801G* has two switches located on its left side.
Both switches are related to AC power.
AC Select
This recessed slide switch sets the safe AC line voltage
operating range of the generator. The “Making Connections” chapter of this manual describes the correct procedure for setting this switch
❖Do not change the voltage selector switch set-
ting while the 801G* is connected to the AC power
line. Make sure that the switch is in the correct
position before plugging in the 801G*.
Power Switch
This rocker switch turns the power on and off. Pressing the side of the switch with the color dot or the
number “1” turns the power on.
❖CAUTION:Holding down any of the buttons on
the front panel while turning on power may
produce unexpected and extremely undesirable
results. Please see the “Programming” chapter
for information on using special power-up button combinations.
Switches
2-7
Buttons
The 801G* has a total of eight push-button switches,
arranged into four function groups: Image, Video
Gate, Sync Gate, and Outputs. All of the buttons
have built-in indicators. When illuminated, a button’s
function is considered on (or enabled).
This section of the manual describes the functions
of the buttons when the 801G* is in the normal mode
of operation The buttons are used for other functions when the 801G* is operated in and a test sequence or programming mode. Please see the
“Programming” chapter for detailed information on
operating the 801G* in the other modes.
❖CAUTION:Holding down any of the buttons on
the front panel while turning on power may
produce unexpected and extremely undesirable
results. Please see the “Programming” chapter
for information on using special power-up button combinations.
Image Button
The Image push-button determines the behavior of
the “Image” knob in the normal operating mode.
Please see an earlier section on the “Image” knob
for information on how the button interacts with
the knob.
❖If there is only one test image associated with a
name in the image list, the “Image” button can
not be turned on for that image.
2-8Chapter 2: Basic Operation
Model 801GC, 801GF & 801GX¥Rev. A
Video Gate Buttons
The Video Gate buttons turn individual color outputs on and off. They also control the adsdition of
primary color information to the NTSC / PAL video
outputs on the 801GX.
• The R push-button turns all of the red video
outputs on and off.
• The G push-button normally turns all of the
green video outputs on and off. When a 2-bit
digital monochrome (MDA) signal is being
generated, the G push-button turns the I (intensity) signal of the video pair on and off.
• The B push-button normally turns all of the
blue video outputs on and off. When a 1 or 2bit digital monochrome signal is being generated, the B push-button turns the V (video)
signal on and off.
❖The master output gating button overrides the
settings of these buttons when turned off.
Analog
Monochrome
Operation
Many of the built-in analog video signal formats are
stored with the RGB video signal type selected. If
you are testing a monochrome monitor with the same
timing, you can toggle between color and monochrome modes by pressing both R and B push-buttons simultaneously.
❖An “m” appearing to the left of the image loca-
tion on the LCD window indicates that monochrome analog video has been selected.
2-9
Sync Gate Buttons
The buttons in this group select the type of sync
signal that is used to synchronize the display. Depending on a particular format’s settings, more than
one type of sync can be selected by pressing two
buttons at a time.
• The ACS (Analog Composite Sync) push-button causes analog sync to be output on one or
more of the analog video outputs.
• The DCS (separate Digital Composite Sync)
push-button causes a separate digital composite sync signal (CS) to be output.
• The DSS (separate Digital Separate Sync) pushbutton causes separate digital horizontal and
vertical sync signals to be output.
❖A default sync type is automatically selected
whenever a new format is selected. Not all sync
types are available with all formats. For example,
digital video formats will not allow analog composite sync to be selected. If a button will not
light up when pressed, then the corresponding
sync type is unavailable.
Re-depressing a sync gate button causes the selected
sync to be toggled either on or off. When toggled
off, no sync will be sent to the display and the display will be allowed to free-run.
❖The individual settings are overridden (gated off)
whenever the master outputs button is turned
off.
Outputs Button
This is the master output signal control. When the
master output control is turned off, all of the signal
outputs of the generator are disabled.
2-10Chapter 2: Basic Operation
Model 801GC, 801GF & 801GX¥Rev. A
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