Quantum Data 801GC, 801GF, 801GX Portable Generator User Manual


 
2-5
Knobs
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 par-
ticular 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 for-
mat redraws the current test image and updates the
LCD. If you select a format containing erroneous
information, the outputs of the generator are auto-
matically turned off and an error message is dis-
played. 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 “Program-
ming” chapter for detailed information on operat-
ing 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 im-
age is automatically drawn after the new format
has finished loading.
Displays, Indicators & Knobs
Format Knob in
Normal Mode
Format Knob in
Other Modes
Image Knob in
Normal Mode