Sony KD-34XBR2 - 34" Hdtv Fd Trinitron Wega, Training Manual

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11. Video Process - HA-3 and RA-5A Chassis
Chart 11-8 shows the main and sub video signal flow through the B board.
Chart 11-8 – Video Process 1 Signal Flow
IC Name Board Function Mode used
IC401 A/V Sw B Selects Main & Sub video inputs When NTSC inputs are selected
Main Path
IC501 3D Comb Filter B Separates the luminance form the
chroma. All NTSC modes except S video
IC207 Main Y/Ct B Selects input component video 5,
6, or composite video from IC501.
Adds Closed Caption graphics
All NTSC modes
IC205 Main Sw B Swaps Twin View pictures back to
original position All NTSC modes
Sub Path
IC204 Sub Comb
Filter B Separates the luminance from the
chroma. Twin View
IC202 Sub Y/Ct B Selects input component video 5,
6, or composite video from IC501.
Adds Closed Caption graphics
Twin View
IC201 Sub Sw B Swaps Twin View pictures back to
original position Twin View
IC200 Component
Interface B Selects NTSC sub video or HD
video 5, 6. Twin View and HD video input
Video Process 2
The main and sub NTSC component video signals from the B board enter the QM board for processing as listed
in Chart 11-9a. The signal flow is joined by the DTV tuner signal shown in Figure 11-15. All three signals flow into
the MID IC8703 for selection.