Mitsubishi Electronics WS-48513, WS-55513, WS-65513, WS-73513, WS-48613, WS-55613, WS-65613, WS-65713, WS-73713, WS-55813, WS-65813 Projection Television User Manual


 
5-2
PCB-TERMINAL Video Path
Figure 5-1 illustrates the Video Signal Path on the PCB-
TERMINAL. The AV-Switch circuitry has not changed,
IC2L00 and IC2K00 are the same ICs used in the V21
chassis.
The 3DYC Motion Adaptive Come Filter provides a
clean separation of luminance (Y) and chroma (C) sig-
nals.
The Main and Sub Decoders are new, generic
#TA12440AF. Their functions include:
Converting NTSC to YPbPr.
Sync Separation
Detecting signal format (480i, 480p, etc.)
Converting RGB to YPbPr.
The Component Switch ICs are also new, generic #
MM1519XQ. There are two Component Switch ICs
on PCB-TERMINAL, and a third one on PCB-SIG-
NAL, not shown in Figure 5-1.
IC2A00 selects the Main and Sub picture sources from:
Main Decoder output
External Comp-1 Input
External Comp-2 input
IC2B00 selects the Main and Sub picture sources from:
The outputs of IC2A00
The External DTV Inputs
The VGA Input
The VGA Input cannot be selected as the Sub picture
source.