Quantum Data 801GC - Manual (Page 19)

1-3 P r o d u c t O v e r v i e w
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 mod-
els. Information that mentions the “801G*” applies
to all three models.
The generator is shipped with over 100 signal for-
mats in place for driving a variety of industry-stan-
dard 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 cus-
tom test images can also be created and saved in
non-volatile memory.
The number of controls on the 801G* has been mini-
mized 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 avail-
able 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. Controls
Images
Formats
A format is a set of
specifications that
describe the video
signal required by a
particular type of
display.