65
28. Grand Wega Video Process
Chapter 28 - Video Process
Video Signal Flow
The video signal flow is shown in Figure 28-1. The video signal is input the U board, through the BC and BB
boards to the final C board within the sealed optical unit optical assembly. The A board is an interconnect board
that passes the video signal from one board to another and performs the initial TV tuner function. Table 28-1
explains the function of each board and their inputs/outputs.
COMPOSITE
VIDEO (V)
TV OUT (V)
COMPONENT
VIDEO
(R,Cr,Cb)
A20
C20
A29
C29
A15
A16
A17
C12
A13
C14
C7
C6
C30
C31
C10
C9
C8
C13
C12
C11
C1
1
15
3
5
IC2004
A/V
SW.
3D COMB
FILTER
IC3009
CCD
C20
C22
C21
C29
C27
C28
TUNER
IC3004
YCT
CCD
IC3006
YCT
SEL
IC3011
MILD
SEL
20
24
22
40
36
38
IC304
DRC
IC509
MID
IC701
RGB
DECODER
LCD
PANEL
S VIDEO
(Y,C)
MAIN
CN1923/
CN704
Y
Cb
Cr
Cr
Cb
Y
OSD FROM M BD.
VIDEO
SYNC
CN702/CN5005
A BD.
BB BD.
1
3
5
7
9
R
G
B
V
H
MAIN
MAIN
SEL
SUB
Y C
A BD.
CN1924/
CN3001
SEL
BC BD.
U BD.
V
C
Y
C
CN2001/
CN1917
CN2001/
CN1901
MAIN
CN3001/
CN1924
B C 4 BD.
FIGURE 28-1 - VIDEO PROCESS - KF60DX100
SEL
SUB
VID 5
VID 6
4/15/02
9TVP131447
C BD./OPTICAL UNIT