Extron Electronics RGB 460xi Series User Guide - Manual (Page 14)

RGB 460 Series • Installation and Operation 8
4 — Serration pulse — Many LCD, DLP projectors and plasma displays must have
serration pulses removed from the sync signal in order to display the image
properly. Flagging or bending at the top of the video image is a sign the serration
pulses should be removed.
Off — The interface does not output serration pulses.
On — The interface outputs serration pulses in the vertical sync interval.
5 — Vertical sync pulse width — Try adjusting the output vertical sync pulse width if
no picture appears, the picture cuts in and out, or the picture is scrambled.
Off — The vertical sync pulse is wide.
On — The vertical sync pulse is narrow.
NOTE: Also try switching from ADSP to DDSP, as explained in the
description for DIP switch 3 on the previous page.
6 — Negative sync — This switch controls sync polarity.
Off — Output sync polarity follows (is the same as) input polarity.
On — Both the horizontal and the vertical sync signals are forced to
negative polarity on output.
7 and 8 — Composite sync routing — These switches work together to route local
monitor signals for Macintosh 13 inch monitors and all other Macintosh and
VGA-type monitors.
NOTE: To be valid, these switches must be set so that one is Off and the
other is On. If both are set to On or both Off, composite sync
routing will not function.
7 (On), 8 (Off) — Sync routing to 15-pin HD local monitor for all Macintosh
(non-13 inch) and VGA monitors (default).
7 (Off), 8 (On) — Sync routing to 15-pin HD local monitor for a Macintosh
13 inch monitor.
b
RGB video output connectors — Attach coaxial cables from the interface to the
display device via these female BNC connectors. The BNCs are on red, green, blue,
black, and yellow pigtail wires secured to the interface by the tie wraps.
Output R G B H V
RGBHV Red Green Blue Black Yellow
RGBS Red Green Blue Black
RGsB Red Green Blue