7-2
IF/Video Block Diagram
L4101BLIF
JK751
15
11
7
VIDEO-Pb
VIDEO-Y
VIDEO-Pr
TO
AU
D
IO
BLOCK DIA
GRAM
CN103A
INPUT
-0(INV)
INPUT
-1(INV)
TU1
SIF
SD
A
SCL
7
10
9
SIF
MAIN CB
A
VIDEO SIGNAL
A
UDIO SIGNAL
T
O
A
UDIO BLOCK
DIA
GRAM
Q734
JK722
VIDEO1
-IN
JK721
S-VIDEO
-IN
T
O
SYSTEM
CONTR
OL
BLOCK
DIA
GRAM
CY
TO
LCD BLOCK
DIA
GRAM (A),(B)
CN103B
IC781
(INPUT SELECT)
Q754
Q702
Q701
SW
CONTR
OL
10
9
11
INPUT
-0
INPUT
-1
TO
SYSTEM CONTR
OL
BLOCK DIA
GRAM
Q872
Q871
Q753
Q752
Q751
(TUNER UNIT)
B
U
FFER
B
UFFER
B
UFFER
B
UFFER
B
UFFER
B
UFFER
WF7
WF2
WF3
WF6
WF5
WF4
3
5
4
CVBS1
8
S-VIDEO-C
5
S-VIDEO-Y
6
VIDEO-Pr
1
VIDEO-Y
2
VIDEO-Pb
3
CVBS2
9
8
19
20
VIDEO-IN
VIDEO-OUT
SLO
W
-SW
17
16
16
RAPID-SW
AFT
VIDEO
Q781
B
UFFER
WF8
SD
A
SCL
S-SW
6
A
UDIO
A
UDIO
AFT
-IN
S/C-J
A
CK-MUTE
FBIN
Q11
SLO
W
-SW
Q731
RAPID-SW
Q730
Q791
Q744
Q792
AL+5V
Q743
B
UFFER
