Madrigal Imaging MP-8, MP-9 manual Signal Routing

OPERATION

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 deter- mines 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 con- nection 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).

Figure 3-6.Connection of Composite Video or S-Video to RGB Input

(Multi-Standard Decoder Option Required)

3.22