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SECTION 7
DIAGRAMS
7-1. BLOCK DIAGRAMS
J
(AV SELECT SW,VIDEO PROCESS)
CN8900
BLUE IN
7
GREEN IN
11
RED IN
15
BLANKING
16
AV1
VIDEO IN
20
Q8811
VIDEO OUT
19
BUFF
RIGHT IN
2
LEFT IN
6
RIGHT OUT
1
LEFT OUT
3
MODE
8
CN8901
15
C IN
VIDEO/Y IN
20
Q8452
VIDEO OUT
19
BUFF
AV2
RIGHT IN
2
LEFT IN
6
RIGHT OUT
1
LEFT OUT
3
MODE
8
AV LINK
10
CN8902
C IN
15
VIDEO/Y IN
20
RIGHT IN
2
LEFT IN
6
MODE
8
AV3
Q8904
RIGHT OUT
1
BUFF
Q8903
LEFT OUT
3
BUFF
Q8901
VIDEO OUT
19
BUFF
AV4
S VIDEO
CN3301
CN8903
3
C
C
1
Y
Y
5
V
V
VIDEO
7
L
L
9
R
R
L
AUDIO
R
H3
(AV INPUT)
– 45 –
25
B1
26
G1
27
R1
15
YS3
IC8451
COMB
45
AV SIGNAL SELECT SW
SYS
SFC
46
OUT
MAIN
CVBS
60
AV1-V
11
1
Y OUT
/Y1
CVBS
Q8902
MAIN
13
48
C1
3
OUT
C OUT
BUFF
36
AV1-R
29
AV1-L
32
RTV
25
LTV
18
MODE1
52
AV2-C
58
AV2-V
9
AV2-OUT
SUBTU-L
30
SUBTU-R
37
35
AV2-R
28
AV2-L
Q8451
40
AV2-R OUT
VIDEO OUT
43
BUFF
41
AV2-L OUT
19
MODE2
SUB Y OUT
45
SUB C OUT
47
LD1
8
SUB TV
62
LD0
5
49
AV4-C
TV
64
54
AV4-V
33
AV4-R
26
AV4-L
HP L OUT
HP LOUT3
23
HP R OUT
20
MODE3
HP ROUT3
24
R
38
MAIN ROUT
AV3-R
34
L
AV3-L
27
Y/V
AV3-V
56
C
AV3-C
51
39
MAIN LOUT
IC8801
AV3/AV4 SW
Q8806
11
3X
BUFF
X
13
Q8808
15
2X
BUFF
SW2
A
10
Q8803
4
3Y
BUFF
Y
3
3
Q8802
2
2Y
1
BUFF
5
L
7
R
9
Y/V
C
IC8301
MAIN COLOR DECODER
Cr OUT
23
IC8500
DIGITAL COMB FILTER
Cb OUT
22
23
PNR
Q8502,8503
LUMINANCE
26
NTPL1
9
5
COMB Y
OUT
BUFF
37
CLOCK IN
Y OUT
21
Q8700
Q8302,8504
COMB C/
CHROMA
2
A/D IN
7
7
OUT
FORCED S
BUFF
BUFF
38
Xtal
X8301
16.2MHz
SCP
10
13
SCL
14
SDA
HS
9
VS
4
Q8801,8804,8805,8807
AMP,BUFF,DL SW
Q8814,8815
Q8809,8810,8812,8813
AMP
AMP,BUFF,DL SW
IC8304
IC8305
+5V REG
+5V REG
+6.5V
I
O
+DIG5V
+6.5V
I
O
+ANA5V
– 46 –
IC8601
PICTURE BOOSTER
Q8620,8621,8623
Q8604,8609
9
-VIN
-V OUT
16
AMP,BUFF
AMP,BUFF
Q8612,8614,8615
Q8601,8603
8
-UIN
-U OUT
17
AMP,BUFF
AMP,BUFF
IC8602
NOISE DET
Q8605,8610,8611
Y OUT
19
AMP,BUFF
Q8602,8607
3
YIN
Y OUT
7
6
YIN
SDA
14
BUFF
SCL
11
Q8639,8640
1
CVIN
IC8302(1/2)
BUFF
6
SW
+ANA 5V
5
2
Q8636-8638
INV
IC8401
SUB COLOR
DECODER
1
CVBS/Y1
SCL
13
48
C1
SDA
14
V OUT
23
Q8626,8627,8633,8634
U OUT
22
AMP,BUFF
38
Xtal
Q8628-8631
X8401
Y OUT
21
AMP,BUFF
16.2MHz
+ANA 5V
HS
9
2
+ANA 5V
7
1
VS
4
IC8303(2/2)
SYNC BUFF
IC8452
HP AMP
HP R OUT
7
RIN(+) ROUT
1
MUTE SW
HP L OUT
Q8311
6
LIN(+)
LOUT
3
MUTE SW
Q8905
MUTE SW
Q8906
MUTE SW
CN8101
A24
V MAIN IN
A25
U MAIN IN
Q8606
B25
Y MAIN IN
BUFF
Q8616
B3
TRAP
TRAP SW
3
A22
HP MAIN IN
2
7
+ANA 5V
1
A23
VP MAIN IN
IC8302(1/2)
+9V
A16
+9V IN
+6.5V
A17
+6.5V
A6
SDA
B6
SCL
TO A BOARD
A
CN1801
Q8624,8625,8632,8635
A20
V SUB IN
AMP,BUFF
B20
U SUB IN
B21
Y SUB IN
6
3
5
A19
HP SUB IN
IC8303(1/2)
SYNC BUFF
B19
VP SUB IN
A2
CVBS2 OUT
A12
CVBS IN
A1
CVBS1 OUT
A11
SUB AUDIO
A3
HP MUTE
AV LINK
A4
AV LINK
SW2
A8
SW2
R-TV
A9
R-TV
L-TV
A10
L-TV
MAIN R
B9
MAIN R OUT
MAIN L
B10
MAIN L OUT
Q8309
B11
HP R OUT
B12
HP L OUT
B2
CENTER(-)
B1
CENTER(+)
TB8101
+
CENTER SP IN
-
J8901
VARIABLE OUT
R
L
– 47 –
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