RSTN
3DID
DMARQ
CSRD
49
57
41
45
CN4
nSDIN
22
CN1
BG
MCR
/W
BGACK
BR
BUSDE
CSLWR
CSUWR
50
44
46
47
48
51
52
CN3
27
47
IRQMX
CMDMX
CN2
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
OE
D0
|
D7
U501
D-FFs
23
24
26
27
28
30
31
32
34
35
36
38
39
40
42
43
2
3
4
6
7
8
10
11
12
14
15
16
18
19
20
22
DATA15
DATA14
DATA13
DATA12
DATA11
DATA10
DATA9
DATA8
DATA7
DATA6
DATA5
DATA4
DATA3
DATA2
DATA1
DATA0
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
CN3
102
106
69
70
71
73
74
75
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
43
47
25
26
29
30
33
34
37
38
41
42
45
111
115
119
66
IOR
IOW
SA9
SA8
SA7
SA6
SA5
SA4
SA3
SA2
SA1
SA0
SD15
SD14
SD13
SD12
SD11
SD10
SD9
SD8
SD7
SD6
SD5
SD4
SD3
SD2
SD1
SD0
A2
A1
D7
D6
D5
D4
D3
D2
D1
D0
STBC
STBD
EMPTY
SCK
SDATA
STBV
STBCG
CN1
113
115
109
111
117
119
110
112
114
116
118
120
103
107
Y1OUT
Y2OUT
CMP1OUT
CMP2OUT
C1OUT
C2OUT
YY1OUT
YY2OUT
U1OUT
U2OUT
V1OUT
V2OUT
ADREF2
ADREF1
CN2
RST
PA2
PA1
1
2
3
U504(a)
4
5
6
U504(b)
9
10
8
U504(c)
12
13
11
U504(d)
1
2
4
U528
RST
8
9
U503(c)
U503(b)
U502
U525(a)
U525(b)
U525(c)
U525(d)
U503(d)
FROM
MIXER
BOARD
(4/4)
U524
U503(a)
U512(b)
U512(a)
MBSEL
S2
422
CMDMX
IRQMX
BR
BGACK
18
19
17
16
15
14
13
12
1
6
5
PA0
TO
MIXER
BOARD
(3/4)
TO
MIXER
BOARD
(2/4)
TO MIXER BOARD (3/4)
TO MIXER BOARD (4/4)
11
4
CP
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
OE
19
18
17
16
15
14
13
D0
|
D7
U517
D-FFs
CP
11
1
2
1
2-9
DATM0-7
CLKOUT
CS0
PA0
PA1
PA2
PA4
DS
SIZ0
A0
R/
W
CS2
D0-15
IACK3
IACK5
IACK6
IACK7
IREQ7
IREQ6
IREQ5
IREQ3
CS1
CS3
A1-18
U507
SUB
MICROPROCESSOR
14
108
130
131
132
136
5
4
149
2
30
106
109-112
115-122
125,127-129
99
100
101
105
133
137
138
139
1
1
2
4
2
DATM0-15
D0
Q1
D2
Q3
D5
Q0
D1
Q2
D3
Q5
CK
RES
U506
D-FFs
A1
A2
A3
A4
2
3
4
5
6-9
U920
BUS BUFFER
2
4
7
11
15
9
1
PA2
3
5
6
10
14
(E)
(G)
1
2
3
4
5
10
9
13
12
6
8
11
(B)
(A)
(C)
(D)
(F)
12
13
CWR
CRD
1D
1CK
1CLR
2D
2CK
2CLR
1Q
1Q
2Q
2Q
U510
D-FFs
1D
1CK
1CLR
2D
2CK
2CLR
1Q
1Q
2Q
2Q
U511
D-FFs
HRD
34
2
1
+5V
2
3
1
12
11
13
U512(c)
HWR
5
6
XVP
FROM
MIXER
BOARD
(2/4)
8
6
6
8
18
20
X501
OUT
VCC
U505
VOLTAGE DETECTOR
WE
D0
|
D7
CE1
OE
A0
|
A16
13-15
17-21
U508,U509
SRAMs
2-12
23
25-28
31
29
22
24
12
EXTAL
XTAL
TGATE1
RESET
RST
6
7
+5V
Q501
4
7
9
12
2
3
5
6
11
10
14
13
U921
SELECTOR
+5V
RST
1
DATM0-15
B1
|
B8
A1
|
A8
U533,U534
TRANSCEIVERS
DIR
EN
2-9
1
19
DATM0-15
Y1
|
Y8
A1
|
A8
U535,U536
BUS BUFFERS
2-9
ADM1-16
11-18
11-18
DATA0-15
A1-16
15
14
13
12
11
10
9
7
STBC
STBD
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
CS2
A0
|
A2
U513
3-8 DECODER
107
104
4
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
CS2
A0
|
A2
U530
3-8 DECODER
I/O
AWR
R/W
RD
WR
IO
W
IO
R
I/O
SA0
|
SA9
19
18
17
16
15
14
13
12
U518
LOGIC CONTROL
1-9,11
SA0-9
CAB
GAB
A1
|
A8
CBA
GBA
B1
|
B8
1
3
DATM0-15 4-11
13-20
SD0-15
23
21
U519,U520
TRANSCEIVERS
A1
A2
A3
Y1
Y2
Y3
OE
1,4,10,13
3
SD3
SD4
SD5
6
8
5
9
2
U537
BUS BUFFERS
Q0
|
Q7
OE
D0
|
D7
CP
2-9
SD0-15
11
12-19
1
U521,U522
D-FFs
12
12
6
8
12
6
8
ST11
ST2
ST3
ST4
ST5
ST12
TO
MIXER
BOARD
(2
/4)
TO
MIXER
BOARD
(3/4)
TO
MIXER
BOARD
(3/4)
1
2
4
1
2
4
U11
U708
U529(a)
U514(a)
U514(b)
U514(c)
U515(a)
U515(b)
(F)
(E)
(C)
(D)
(G)
U515(c)
1-3
1-3
4
CRD
CWR
CF0
FROM
MIXER
BOARD
(2/4)
HRD
HWR
HWR
I/O
DATA0-15
A1-8
TO
MIXER
BOARD
(3/4)
TO
MOTHER
BOARD
TO
MOTHER
BOARD
1D
1CK
2D
2CK
1Q
1Q
2Q
2Q
U531
D-FFs
1D
1CK
2D
2CK
1Q
1Q
2Q
2Q
U532
D-FFs
48,49
52-54
56-58
61-67
70-72
ADM16-18
15
14
13
12
11
10
9
STBCG
ADM1-16
2
3
12
11
2
3
12
11
9
SD0
SD0
EMPTY
1
3
24
24
7
1
3
7
5
SCK
5
9
STBV
SDATA
(B)
(A)
CSRD
-5V
U101,U701,U706,U851
-5V REGULATOR
U707
U704
Q718
BLK
MIX
LPF
U705
SYNC
MIX
Y
AMP
BUFFER
BUFFER
Q702,Q808
Q703-Q707
Q719
R445
BLK
RECY
SYNC
R444
BUFFER
LPF
BUFFER
RECC
Q734
CF703
Q735
CF701,CF702
Q701
R439
Y
DRIVE
VIDEO
DRIVE
CROMA
DRIVE
Y
DRIVE
Q708-Q717
Q724-Q733
Q741-Q750
Q751-Q760
Y1OUT
Y2OUT
CMP1OUT
C1OUT
C2OUT
CMP2OUT
YY1OUT
YY2OUT
U709
VIDEO SW
U710
VIDEO SW
U711
VIDEO SW
FROM
MIXER
BOARD
(2/4)
FROM
MIXER
BOARD
(2/4)
VIDEO
AMP
CHROMA
AMP
Q720-Q723
R440
R441
Q736-Q740
24
24
4
2
AMP
MIX
4
24
2
DRIVE
DRIVE
Q804-Q807
Q800-Q803
Q799
U714
U713
R446
Q797,Q798
ADREF2
ADREF1
BUFFER
BPF
BUFFER
U
AMP
Q761
CF704
Q762
Q763-Q768
R442
BUFFER
BPF
BUFFER
V
AMP
Q779
CF705
Q780
Q781-Q786
R445
U702
VIDEO SW
U703
VIDEO SW
MBSEL
U712
V
DRIVE
U
DRIVE
Q769-Q778
Q787-Q796
U1OUT
U2OUT
V1OUT
V2OUT
REC U
REC V
ADVSC
ADVSY
PA0
5
7
4
5
7
4
5
7
4
24
EXTR
ADM1-17
HWR
DATA0-7
A1-8
TO
MIXER
BOARD
(2/4)
2
3
1
12
11
13
R/W
BLOCK DIAGRAM OF MIXER BOARD (1/4)
MIXER BOARD
CSRD
IN
2
-12V
+12V
+12V
+5V
DATM0-7
+5V
OUT
3
SEL
R/W
RST
I/O
DATM0
S3
S4
S5
S6
S8
S7
STB3
EMPH
SDIIN
35
36
27
CN1
STB3
A5
|
A8
Y1
|
Y8
OE2
19
11-18
+5V
1
2
13
1
2
13
1
2
13
3
4
5
3
4
5
9
10
11
9
10
11
STB3
BUFFER
Q855
BUFFER
Q856
+5V
2-9
DATM8-15
TO
MOTHER
BOARD
TO
MOTHER
BOARD
TO
MOTHER
BOARD
– 21 –