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VGA INPUT (Figure 44)
RGB is fed to the set via AV5 using a DB15 connector. IC 7633 is loaded with the possible
settings that are read by the computer when it is connected. Some of the possible inputs to
AV5 are VGA (640x480), SVGA (800x600), XGA (1024x768), SXGA (1280x1024), HD60p
(1280x720), W-VGA (848x480), and W-XGA (1368x768). The RGB drive, Vertical, and
Horizontal Sync are all clamped to prevent excessive signal levels from being applied to the
set. The input signal is clamped to 5.6 volts in the positive direction and 0.6 volts in the neg-
ative direction.
Page 45
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