Accurate Technology Model 8, Руководство по установке

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OPERATION
To modify decoder operation, select Decoder Options from the Picture menu.
From the Decoder Options menu, select item 1 to set the decoding method to use for the
current source signal input to the decoder. Select item 2 to set the routing of the current
source signal within the projector.
Video Standard
When item 1 is selected from the Decoder Options menu, the Video Standard menu is
displayed. It contains up to eight video standard options: Auto- detect, NTSC 3.58, NTSC
4.43, PAL. SECAM and, depending on which version of the decoder is installed, three
more PAL options (see right). The current option is indicated by a check mark. Auto-
detect is the default. When ''Auto-detect'' is selected, the decoder automatically
determines the video standard of the input signal and processes it accordingly.
Alternatively, you can force the decoder to use a particular decoding method by selecting
one of the other menu options. This should only be necessary for poor quality input
signals.
Signal Routing
When item 2 is selected from the Decoder Options menu, the Signal Routing menu is
displayed. It contains four signal routing options: Auto-detect, As Composite, As S-
video, and As RGB. The current selection is indicated by a check mark. Auto-detect is
the default. When ''Auto-detect'' is the selected option, the projector determines whether
the input signal requires routing through the decoder According to the type of interface
used. For example, if the source is an RGB input connected to the RGB interface, the
signal will bypass the decoder since video decoding is not required. However, if the input
is a composite signal connected to a composite/S-video interface, the projector will route
the signal through the decoder for processing.
If ''As Composite'' is the selected option, the projector assumes the input signal is
composite video and processes it through the decoder. If ''As S-video'' is the selected
option, the projector expects the input signal in the form of separate Y and C signals. If
''As RGB'' is the selected option, the projector assumes the signal at the current input is
always RGB and the decoder is bypassed. One reason for not using Auto-detect is to
allow connection of a composite or S-video signal to a standard RGB interface and still
have the projector process the input correctly through an installed decoder; otherwise, a
composite/S-video interface would be required. Figure 3-6 illustrates the connection of a
composite or S-video signal to an RGB input (the projector's built-in RGB input is shown
as an example).
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