Epson EB S6 User Manual page 99

Glossary
SXGA
Synchronization
Tracking
VGA
XGA
A type of video signal with a resolution of 1280 (horizontal) ^ 1024 (vertical) dots that is used by IBM PC/AT-compatible computers.
The signals output from computers have a specific frequency. If the projector frequency does not match this frequency, the resulting
images are not of a good quality. The process of matching the phases of these signals (the relative position of the crests and the troughs in
the signal) is called Synchronization. If the signals are not synchronized, flickering, blurriness, and horizontal interference occur.
The signals output from computers have a specific frequency. If the projector frequency does not match this frequency, the resulting
images are not of a good quality. The process of matching the frequency of these signals (the number of crests in the signal) is called
Tracking. If tracking is not carried out correctly, wide vertical stripes appear in the signal.
A type of video signal with a resolution of 640 (horizontal) ^ 480 (vertical) dots that is used by IBM PC/AT-compatible computers.
A type of video signal with a resolution of 1024 (horizontal) ^ 768 (vertical) dots that is used by IBM PC/AT-compatible computers.
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