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