FUNAI A8C72EP, Service Manual

Page: 21 / 64

7-2
Video Block Diagram
A8C72BLV
CN102A
CN4503
CN101A
CN3701
VIDEO SIGNAL
TU-VIDEO
13
13
VIDEO-R
32
3
VIDEO-G
42
2
VIDEO-B
52
1
S-VIDEO-Y
23
3
S-VIDEO-C
25
1
COMP-Pr
21
5
COMP-Pb
20
6
COMP-Y
18
8
VIDEO
12
5
VIDEO-OUT
6
B
UFFER
Q505
TU-CVBS
11
13
IC3823 (INPUT SELECT)
SW CTL
4
10
9
11
5 3
TU-CVBS
DTV
-CVBS
TU501
DIF-OUT1
15
DIF-OUT2
16
(TUNER UNIT)
IF-A
GC
17
8
SCL
9
SD
A
CN103A
CN3704
DIF-OUT1
20
4
IF-A
GC
18
6
SCL
15
9
SD
A
16
8
DIF-OUT2
22
2
IC3824
(DEMODULA
T
OR)
64 63
SCL SD
A
2
IF-A
GC
57 58
DEMODULA
T
O
R
MPEG2-TS INTERF
A
CES
13
VIDEO
VIDEO-R
VIDEO-G
VIDEO-B
T
O
DIGIT
AL
SIGNAL PR
OCESS
BLOCK DIA
GRAM
S-VIDEO-Y
S-VIDEO-C
T
O
DIGIT
AL
SIGNAL PR
OCESS
BLOCK DIA
GRAM
COMP-Pb
COMP-Y
COMP-Pr
TS-D
A
T
A
T
O
DIGIT
AL
SIGNAL PR
OCESS
BLOCK DIA
GRAM
25 26
SCL
SD
A
SCL
SD
A
T
O
SYSTEM
CONTR
OL
BLOCK DIA
GRAM
A
U
DIO SIGNAL
INPUT2
T
O
SYSTEM
CONTR
OL
BLOCK DIA
GRAM
MAIN CB
A
DIGIT
AL MAIN CB
A UNIT
15 11
7
VIDEO-B
VIDEO-G VIDEO-R
JK721 S-VIDEO-IN
CY
8
19 20
VIDEO-IN
VIDEO-OUT
SLO
W
-SW
16
RAPID-SW
Q726
Q744
JK722
JK751
VIDEO-IN
JK11
B
UFFER
B
UFFER
S-SW
12
3
IC851 (INPUT SELECT)
SW CTL
15
10
9
11
1 2
CN103A
INPUT2
61
8
CN3704
SLO
W
-SW1
23
3
Q731
Q734
FBIN1
22
4
COMPONENT -Y
-IN
JK12
COMPONENT -Pb-IN
JK13
COMPONENT -Pr-IN
J
A
CK CB
A
CN107
CN11
COMP-Y
11 COMP-Pb
22 COMP-Pr
44
SLO
W
-SW1
FBIN1
S-SW
WF7
WF6
WF5
WF4
WF3
WF2