Sony KDP-51WS550 Training Manual page 34

Figure 5-2 illustrates in detail all the video input sources to the AV Switcher (IC1501). Outputs on the AV Switcher
are the Main, Sub and Monitor Out. The Main and Sub video signals leave the UA board and are fed through the
A board on their way to BM board for processing.
CV/Y PB
CN2004
CN2001
A BOARD
MA BOARD
Figure 5-3 is a continuation of Figure 5-2 so when following a video input path, start with Figure 5-2 and trace the
signal through to Figure 5-3. Figure 5-3 provides detailed Main and Sub video paths through the BM, A, and MA
boards.
MAIN A BOARD
PR
50 46 44
50 46 44
ANALOG
IC3101
A/D
DIGITAL
OUT
1080i
480i
IC3201
DRC
FIGURE 5-3 - AX-1 MAIN AND SUB VIDEO PATHS
SUB
CV/Y PB PR
25 22 21
25 22 21
ANALOG
IC3301
MID
IC3303
D/A
Y PB PRVD HD
CN3001
24 21 19 17
24 21 19 17
CN2004
CN2005
34 37 39 41
34 37 39 41
CN0001
Y PB PR VS HS
IC0401
Y/C CRT DRIVE
32
5. AX-1 Video Processing
BM BOARD
16
16
42
42
TO: CR
R
G
B
TVP16.5-3
CG
CB
11/4/03