Extron Electronics RGB 400xi Series User Guide - Manual (Page 15)

RGB 460xi Series • Installation and Operation 2-7
1 DIP switches — This bank of DIP switches, as illustrated below,
controls sync on green output, composite sync output, DDSP
(Digital Display Sync Processing), serration pulse output,
vertical sync pulse width, and composite sync routing. Moving
a switch up will set it to “On” and moving it down will set it to
“Off”.
3 4 5 6 1 2 7 8
Closed / On
Open / Off
The default for all DIP switches, except for switch 7, is
Off (down).
1 — Sync on green
Off — The interface outputs separate horizontal and
vertical sync (on the H and V connectors) for
RGBHV.
On — The interface outputs sync on green (RGsB).
2 — Composite sync — This switch controls composite sync
output.
Off — The interface outputs RGBHV or RGsB video.
On — The interface outputs combined horizontal and
vertical sync for RGBS.
3 — DDSP (Digital Display Sync Processing) — This feature
may be necessary for digital display devices such as LCD,
DLP (digital light processing), and plasma displays. Use
this option if the image is not displayed properly after
other options, such as serration pulse and vertical sync
pulse width, have been explored.
Off — The interface performs sync processing operations,
such as centering, with ADSP.
On — The interface uses DDSP instead of ADSP.
DDSP does not process the sync signal.
DDSP disables the horizontal shifting control.
4 — Serration pulse — Many LCD and 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
that 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.