Sony KD-34XBR2 Training Manual page 58

Chart 11-8 shows the main and sub video signal flow through the B board.
IC Name
IC401 A/V Sw
Main Path
IC501 3D Comb Filter B
IC207 Main Y/Ct
IC205 Main Sw
Sub Path
IC204 Sub Comb
Filter
IC202 Sub Y/Ct
IC201 Sub Sw
IC200 Component
Interface
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.
Chart 11-8 – Video Process 1 Signal Flow
Board Function
B Selects Main & Sub video inputs
Separates the luminance form the
chroma.
B Selects input component video 5,
6, or composite video from IC501.
Adds Closed Caption graphics
B Swaps Twin View pictures back to
original position
B Separates the luminance from the
chroma.
B Selects input component video 5,
6, or composite video from IC501.
Adds Closed Caption graphics
B Swaps Twin View pictures back to
original position
B Selects NTSC sub video or HD
video 5, 6.
11. Video Process - HA-3 and RA-5A Chassis
When NTSC inputs are selected
All NTSC modes except S video
All NTSC modes
All NTSC modes
Twin View
Twin View
Twin View
Twin View and HD video input
55
Mode used