Sony Grand Wega KF-50SX100, Service Manual, Page: 47 / 114

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SECTION 4
DIAGRAMS
4-1. BLOCK DIAGRAM (1)
25
26
27
15
11
60
13
1
45
48
36
29
32
25
18
35
28
40
41
19
49
54
33
26
20
38
39
52
58
9
AV1
AV2
AV3
AV4
S VIDEO
VIDEO
AUDIO
L
R
CN8900
CN8901
CN8902
BLUE IN
GREEN IN
RED IN
VIDEO IN
RIGHT IN
RIGHT OUT
RIGHT IN
LEFT IN
LEFT OUT
MODE
VIDEO OUT
BLANKING
7
11
15
20
2
1
6
3
8
LEFT IN
C IN
VIDEO/Y IN
VIDEO OUT
LEFT OUT
RIGHT OUT
MODE
AV LINK
6
2
19
20
15
3
1
8
10
19
16
IC8451
AV SIGNAL SELECT SW
C IN
VIDEO/Y IN
RIGHT IN
RIGHT OUT
VIDEO OUT
LEFT OUT
LEFT IN
15
20
2
1
19
3
6
MODE 8
Q8811
BUFF
Q8452
BUFF
Q8451
BUFF
Q8902
BUFF
Q8501
BUFF
Q8904
BUFF
Q8903
BUFF
Q8901
BUFF
J
(AV SELECT SW,VIDEO PROCESS)
AV1-V
AV1-R
AV1-L
RTV
LTV
MODE1
AV2-R
AV2-L
AV2-R OUT
AV2-L OUT
MODE2
AV4-C
AV4-V
AV4-R
AV4-L
MODE3
MAIN ROUT
MAIN LOUT
AV2-C
AV2-V
AV2-OUT
MAIN L MAIN R AV LINK R-TV L-TV
CN8903
C
Y
V
L
R
3
1
5
7
9
CN4303
V2-C
V2-Y
V2-V
V2-L
V2-R
3
1
5
7
9
H1
L
R
Y/V
C
34
27
56
51
8
62
5
64
23
24
R
L
Y/V
C
45
47
30
37
43
MAIN
Y OUT
MAIN
C OUT
AV3-R
AV3-L
AV3-V
AV3-C
LD1
SUB TV
LD0
TV
HP LOUT3
HP ROUT3
SUB Y OUT
SUB C OUT
SUBTU-L
SUBTU-R
VIDEO OUT
B1
G1
R1
YS3
CVBS
/Y1
C1
46
3
23
37
26
2
9
7
COMB
SYS
SFC
OUT
CVBS
OUT
5
23
7
14
38
13
IC8500
DIGITAL COMB FILTER
PNR
CLOCK IN
NTPL1
A/D IN
LUMINANCE
OUT
CHROMA
OUT
Q8502,8503
BUFF
Q8302,8504
BUFF
X8301
16.2MHz
IC8301
MAIN COLOR DECODER
COMB Y
COMB C/
FORCED S
SDA
Xtal
38
X8401
16.2MHz
Xtal
SCL
1
48
13
14
23
CVBS/Y1
C1
22
21 3 7
2
1
10
9
4
Cr OUT
Cb OUT
Y OUT
SCP
HS
VS
IC8602
NOISE DET
YIN
CVIN
Y OUT
SW
Q8620,8621,8623
AMP,BUFF
Q8612,8614,8615
AMP,BUFF
Q8801,8804,8805,8807
AMP,BUFF,DL SW
Q8809,8810,8812,8813
AMP,BUFF,DL SW
Q8814,8815
AMP
Q8602,8607
BPF
Q8639,8640
BPF
Q8636-8638
INV
IC8401
SUB COLOR
DECODER
22
21
9
4
1
3 6
7
SCL
SDA
V OUT
U OUT
Y OUT
HS
VS
HP L OUT
HP R OUT
HP R OUT
HP L OUT
IC8452
HP AMP
LIN(+)
RIN(+) ROUT
LOUT
+6.5V +DIG5V
I O
IC8304
+5V REG
+ANA5V I O
IC8305
+5V REG
IC8601
PICTURE BOOSTER
6
8
9
14
17
16
YIN
-UIN
-VIN
19
11
SDA
-U OUT
-V OUT
Y OUT
SCL
Q8605,8610,8611
AMP,BUFF
Q8628-8631
AMP,BUFF
Q8626,8627,8633,8634
AMP,BUFF
Q8624,8625,8632,8635
AMP,BUFF
Q8604,8609
AMP,BUFF
Q8601,8603
AMP,BUFF
Q8606
BUFF
Q8616
TRAP SW
+ANA 5V
6
5
3
+ANA 5V
2
1
7
IC8302(1/2)
IC8302(1/2)
+ANA 5V
2
1
7
3
IC8303(2/2)
BUFF
IC8303(1/2)
BUFF
+ANA 5V
6
5
J
TO A BOARD
CN1801
CN8101
V MAIN OUT
+9V IN
+6.5V
SDA
SCL
TRAP
HP MAIN OUT
VP MAIN OUT
V SUB OUT
U SUB OUT
Y SUB OUT
HP SUB OUT
VP SUB OUT
CVBS2 OUT
U MAIN OUT
Y MAIN OUT
CVBS IN
CVBS1 OUT
SUB AUDIO
HP MUTE
AV LINK
SW2
R-TV
L-TV
MAIN R OUT
MAIN L OUT
HP R OUT
HP L OUT
CENTER(-)
)
A2
A12
A1
A11
A3
A4
A8
A9
A10
B9
B10
B11
B12
B2
B1
A24
B3
A22
A23
A25
B25
+9V
+6.5V
A16
A17
A6
B6
A20
B20
B21
A19
B19
Q8906
MUTE SW
Q8905
MUTE SW
Q8311
MUTE SW
Q8309
MUTE SW
AV LINK
MAIN L
MAIN R
L-TV
R-TV
SW2
TB8101
VARIABLE OUT
CENTER SP IN
L
R
-
+
J8901
(AV INPUT)
J4302
CN4302
HP L
HP R
HP SW
3
1
4
2
J4301
H
TO
A BOARD
CN1917
6
11
15
16
IC8700
AUTO WIDE
AD IN
X0
CIRP
X1
SCL
SDA
26
25
X8700
14.3MHz
Q8700
BUFF
15
14
SCL
SDA
1 SC
BUFF
BUFF