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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
IC8451
AV1
AV SIGNAL SELECT SW
1/
VIDEO IN
20
60
AV1-V
Q8811
VIDEO OUT
19
BUFF
RIGHT IN
2
36
AV1-R
LEFT IN
6
29
AV1-L
RIGHT OUT
1
32
RTV
LEFT OUT
3
25
LTV
18
MODE1
MODE
8
CN8901
C IN
15
52
AV2-C
20
58
AV2-V
VIDEO/Y IN
Q8452
VIDEO OUT
19
9
AV2-OUT
BUFF
AV2
2/
2
RIGHT IN
2
35
AV2-R
28
AV2-L
LEFT IN
6
RIGHT OUT
1
40
AV2-R OUT
LEFT OUT
3
41
AV2-L OUT
19
MODE2
MODE
8
AV LINK
10
CN8902
C IN
15
49
AV4-C
54
AV4-V
VIDEO/Y IN
20
RIGHT IN
2
33
AV4-R
LEFT IN
6
26
AV4-L
MODE
8
20
MODE3
Q8904
38
MAIN ROUT
AV3
RIGHT OUT
1
BUFF
3/
3
Q8903
LEFT OUT
3
39
MAIN LOUT
BUFF
Q8901
VIDEO OUT
19
BUFF
AV4
4
J3501
HB
S VIDEO
(AV INPUT,HP OUT)
s
CN3501
3
C
1
Y
VIDEO
5
V
7
L
9
R
L
(MONO)
R
CN3502
J3502
1
HP R OUT
HEAD
I
PHONE
4
HP L OUT
TO A BOARD
CN1301
– 49 –
IC8301
MAIN COLOR DECODER
25
B1
26
G1
27
R1
15
YS3
DIGITAL COMB FILTER
COMB
45
23
PNR
SYS
26
NTPL1
SFC
46
37
CLOCK IN
OUT
MAIN
CVBS
11
1
Y OUT
/Y1
CVBS
Q8902
Q8501
MAIN
13
48
C1
3
2
A/D IN
C OUT
OUT
BUFF
BUFF
Q8700
6
A/D IN
BUFF
25
XO
X8700
14.3MHz
26
XI
SUBTU-L
30
SUBTU-R
37
Q8451
VIDEO OUT
43
BUFF
SUB Y OUT
45
SUB C OUT
47
LD1
8
SUB TV
62
LD0
5
TV
64
HP L OUT
HP LOUT3
23
HP R OUT
HP ROUT3
24
R
AV3-R
34
L
AV3-L
27
Y/V
AV3-V
56
C
AV3-C
51
Q8814,8815
AMP
CN8903
C
C
3
IC8304
Y/V
Y
1
+5V REG
V
5
L
+6.5V
I
O
L
7
R
R
9
Q8620,8621,8623
Cr OUT
23
AMP,BUFF
IC8500
Q8612,8614,8615
Cb OUT
22
AMP,BUFF
NOISE DET
LUMINANCE
Q8502,8503
9
5
COMB Y
OUT
BUFF
Q8602,8607
Y OUT
21
3
YIN
BUFF
Q8302,8504
COMB C/
CHROMA
7
7
OUT
BUFF
FORCED S
Q8639,8640
1
CVIN
BUFF
38
Xtal
IC8700
AUTO WIDE
X8301
16.2MHz
Q8636-8638
SCP
10
INV
SCL
15
13
SCL
SDA
16
14
SDA
HS
9
VS
4
IC8401
SUB COLOR
DECODER
1
CVBS/Y1
48
C1
V OUT
U OUT
38
Xtal
X8401
Y OUT
16.2MHz
Q8801,8804,8805,8807
AMP,BUFF,DL SW
Q8809,8810,8812,8813
AMP,BUFF,DL SW
IC8452
HP AMP
HP R OUT
7
RIN(+) ROUT
HP L OUT
6
LIN(+)
IC8305
+5V REG
+DIG5V
+6.5V
I
O
+ANA5V
– 50 –
IC8601
PICTURE BOOSTER
Q8604,8609
9
-VIN
-V OUT
16
AMP,BUFF
Q8601,8603
8
-UIN
-U OUT
17
AMP,BUFF
IC8602
Q8605,8610,8611
Q8606
Y OUT
19
AMP,BUFF
BUFF
Y OUT
7
6
YIN
SDA
14
SCL
11
Q8616
TRAP SW
IC8302(1/2)
6
SW
+ANA 5V
3
5
2
2
7
+ANA 5V
1
IC8302(1/2)
+9V
+6.5V
SCL
13
SDA
14
Q8624,8625,8632,8635
23
AMP,BUFF
Q8626,8627,8633,8634
22
AMP,BUFF
Q8628-8631
21
AMP,BUFF
6
+ANA 5V
3
5
HS
9
IC8303(1/2)
2
SYNC BUFF
+ANA 5V
7
1
VS
4
IC8303(2/2)
SYNC BUFF
AV LINK
R-TV
L-TV
MAIN R
MAIN L
Q8309
1
MUTE SW
Q8311
LOUT
3
MUTE SW
Q8905
MUTE SW
Q8906
MUTE SW
CN8101
A24
V MAIN IN
A25
U MAIN IN
B25
Y MAIN IN
B3
TRAP
A22
HP MAIN IN
A23
VP MAIN IN
A16
+9V IN
A17
+6.5V
A6
SDA
B6
SCL
TO A BOARD
A
CN1801
A20
V SUB IN
B20
U SUB IN
B21
Y SUB IN
A19
HP SUB IN
B19
VP SUB IN
A2
CVBS2 OUT
A12
CVBS IN
A1
CVBS1 OUT
A11
SUB AUDIO
A3
HP MUTE
A4
AV LINK
A8
SW2(NC)
A9
R-TV
A10
L-TV
B9
MAIN R OUT
B10
MAIN L OUT
B11
HP R OUT
B12
HP L OUT
B2
CENTER(-)
B1
CENTER(+)
TB8101
+
CENTER SP IN
C
-
J8901
R
VARIABLE OUT
L
– 51 –
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