Electrohome Marquee Ultra Series User Manual page 63

OPERATION
Composite
Video Input
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RGB Interface ~
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1 I
Y c
S-Video Input
Figure 3-6. Connection of Composite Video or S-Video to
(Multi-Standard Decoder Option Required)
RGB Input
About the Marquee Sync Routing System
The Marquee Sync Routing System allows various sync and video
combinations to be made to the Input 01 or 02 on the VIM. You can connect
Video signals with Separate sync (R-G-B-WC-V), Composite sync (R-G-B-
WC) or Sync-On-Green (R-Gs-B).
As well, the routing system allow Composite Video signals to be connected
through the Green BNC and routed to the Marquee Decoder as long as the
Recall (or Input) memory assigned to the Composite Video source is set for
routing as Composite Video. From the PIC menu, select "Signal Routing"
(item 9), then select "As Composite" (item 2) in order to force the routing to
the Marquee Decoder.
Similarly, the system allows you to connect S-Video (Y/C) signals to the Red
(for Y) and Blue (for C) BNCS, where they are routed to the Marquee Decoder
if the Recall (or Input) memory assigned to the S-Video source is set for
routing as S-Video. From the PIC menu, select "Signal Routing" (item 9).
Then select "As S-Video" (item 3) in order to force the routing to the Marquee
Decoder.
The IC at the U41 location on the Video Input Module (VIM) determines the
priority and routing of incoming and outgoing sync. The VIM also includes
Sync-On-Green circuitry which strips sync information from signals connected
to the Green BNC. The IC then outputs the appropriate sync from the VIM to
the Deflection Processor Board (DPB), which locks the operating frequency of
the projector to the sync it receives. Set "Auto Clamp" in one of two ways, as
described below.
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