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Block Diagram
TP2
RV2
IC10
R GAIN
FL2
Q11, 12
6 dB
VA, 1-54
2-16
R (X) IN
FL
AMP
TP1
RV1
IC5
G GAIN
FL1
Q9, 10
6 dB
G (X) IN
FL
VA, 1-52
2-18
AMP
TP3
RV3
IC13
B GAIN
FL3
Q13, 14
6 dB
VA, 1-50
2-14
B (X) IN
FL
AMP
IC73
1
5
6
7
–2.5V
+3.1V
2-23
MB, 23-11
HTSG OUT
DIGITAL VIDEO OUT ENABLE
MB, 6-37
1-37
DOUT EN
BRD
AT, 1-31
1-52
1-52
RD (PR)
RD (PR)
BWR
AT, 1-30
1-50
1-50
WR (PR)
WR (PR)
BCE1
AT, 1-29
1-48
1-48
CE1 (PR)
CE1 (PR)
PD7
AT, 1-39
1-68
DB7 (PR)
PD6
1-66
DB6 (PR)
AT, 1-38
PD5
AT, 1-37
1-64
DB5 (PR)
PD4
AT, 1-36
1-62
DB4 (PR)
PD3
1-60
DB3 (PR)
AT, 1-35
PD2
IC23
AT, 1-34
1-58
DB2 (PR)
PD1
PD0-7
25-32
35-38, 40-43
AT, 1-33
1-56
DB1 (PR)
D0-7
PA0-7
PD0
14
1-54
DB0 (PR)
AT, 1-32
PB0
20
PB5
9
PC0
IC21, 24, 26, 28
I/O
EXPANDER
BA1
3
5
1-74
A1 (PR)
A1
PC7
AT, 1-41
BA0
4
15
1-72
A0 (PR)
A0
PB1
AT, 1-42
16
PB2
18
PB3
BRD
44
RD
BWR
34
WR
1
AT, 1-40
1-70
CE0 (PR)
CS
6
PC6
33
RESET
23
PB7
8
PC4
7
PC5
20
IC45
CE
IC1, Q5
NV
RAM
1-131
+5.1V
+4.8V
+4.8V
1-132
+5.1V
REG
I/O0-7
IC1, Q6
VA, 1-89
2-1
+2.5V REF IN
+4.8V
WE
+4.8V-2
REG
27
IC1, Q8
1-127
–2.8V
–2.5V
–2.5
1-128
–2.8V
+4.8V
REG
+2.5V
IC1, Q1-3
+3.1V
+2.5V
1-123
+3.1V
REG
1-124
+3.1V
1-125
+3.1V
1-126
+3.1V
PR-242
PR-242
Block Diagram
IC12
IC9, 11
23
A/D CONV.
2-13
12
186-197
20
BUFFER
R IN0-11
(12 bit)
14
IC8
IC6, 9
23
2-13
12
171-178, 182-185
A/D CONV.
20
BUFFER
G IN0-11
(12 bit)
14
G CLK
IC16
IC14, 18
23
A/D CONV.
2-13
12
157-159, 162-170
20
BUFFER
B IN0-11
(12 bit)
14
R/B CLK
IC41
4, 5
6
155
HD
1, 2
3
156
VD
IC69
18
2
30
PA0/SCL
IC22
EEPROM
23
SDAI
SCL
SDA
POR
9
IC400
PA0-7
1
4
PA8
SDA I/O
D.VIDEO EN
AT SG
+6dB
SKIMGATE ON
R/B AD CLK PHASE1
SYSTEM
R/B AD CLK PHASE2
CONTROL
G AD CLK PHASE1
SIG.GEN.
G AD CLK PHASE2
HI-Y LEV
R1-10
10
198-207
R0-9
CHROMA LEV
VFY LEV
Y SYNC LEV
G1-10
10
187-196
G0-9
VIFDTL LEV
SCL
B1-10
10
2-11
B0-9
13
ICCK
1
24
CLR
NE
2-10, 21
29-33, 35-42
23-25
13
A0-12
AD0-12
IC46
11-13
5V
3V
15-19
8
15-22
3-10
8
44-51
CONV.
D0-7
OE
DIR
22
2
55
RRE
RWE
IC2
Q4
2
POWER ON
6
RESET1 GEN.
IC3
Q4
2
POWER ON
6
RESET2 GEN.
Q7
7-8
7-8
99,
121-126
IC40
111-119
128, 129
IC49
3-7, 9-12
123-125
12
134-136
205-207
R OUT0-11
R IN0-11
R OUT0-11
126-130
108-117
13, 15-19
132-138
12
119, 120
21-25, 28
G OUT0-11
G IN0-11
G OUT0-11
SH1
IE
SDT OUT
82-89
93-98
10-13, 20-23
141-146
100-103
29-33
148-153
12
107, 127
35-41
B OUT0-11
B IN0-11
B OUT0-11
47-50, 54-57
59-62
DTL OUT0-11
102
132
64-67, 69-72
DSPCLK
CLK18
74-77, 80, 81
MPX OUT0-13
108
180
91
HD
HD
HD
109
181
90
VD
VD
VD
26
HD
193-196, 198-201, 203, 204
CCD HD
VFDTL0-9
25
VD
188
CCD VD
SCLI
29
PRN HD
28
187
PRN VD
SDAI
22
BWR
SDAO
BCE1
CCD
POWER
CLK
BRD
CLK
SAVE
PRST
SDA0
39
19
11
45
43
186
PD0-7
PA0-8
IC42
84
18MCK
17
(ACK) ICDS
14
(SDA) ICDT
81
HD
IC69
ADV HD
82
VD
HD
13
7
ADV VD
1-47
VA, 1-8/AT, 1-22/SG, 1-38
A HD OUT
VD
15
3
A VD OUT
1-49
VA, 1-7/AT, 1-24/SG, 1-37
147-155
IC43
158
10
1
GBSH0-9
D/A
G B SHADING OUT
2-2
VA, 1-79
IC43
136-145
10
14
VA, 1-80
RBSH0-9
D/A
R B SHADING OUT
2-3
IC43
122-129
133, 134
10
8
BBSH0-9
D/A
B B SHADING OUT
2-4
VA, 1-78
IC44
113-120
8
1
GWSH0-7
D/A
G W SHADING OUT
2-6
VA, 1-65
SH2
IC44
101-103
8
7
RWSH0-7
D/A
2-7
VA, 1-66
R W SHADING OUT
106-108
110, 111
IC44
92-99
8
8
VA, 1-64
BWSH0-7
D/A
B W SHADING OUT
2-8
IC47
180, 181
186
3
14
GFB0-2
D/A
G FEEDBACK OUT
2-10
VA, 1-59
IC47
176-178
3
8
RFB0-2
D/A
R FEEDBACK OUT
2-11
VA, 1-60
IC47
172-174
3
1
BFB0-2
D/A
2-12
VA, 1-58
B FEEDBACK OUT
159, 161-165
IC43
167-169
9
7
TST0-8
D/A
TEST SAW (X) OUT
2-21
VA, 1-26
142,
IC50
186-188, 190-192
12
144-154
194-196, 198
10
R IN0-11
R-Y0-9
199-201
203-207, 3, 4
10
B-Y0-9
158-162
164-167, 169
10
VF-Y0-9
128, 129
IC72
12
132-141
10
3
1, 2
G IN0-11
TLI
11
6
4, 5
TLBI
14
SKG
13
HD0
12
PR
VD0
62-72
8
74-77
DET IN
10-13, 20-23
115-119
170, 171
12
121-127
173-175
B IN0-11
177-181
95-103
184, 185
YPO0-11
12
107-109
DTL IN0-11
80-91
14
93, 94
MPX IN0-11
66
HD
67
VD
55
SCIN
56
SDAM1
39
WEB
41
CEB
42
REB
29-36
PB0-7
18-25, 28
PDA0-8
CLK
SDM0
PORB
57
111
113
10
TITLE IN
1-40
TITLE BACK IN
1-42
AT, 1-26
1-40
TITLE IN
AT, 1-25
1-42
TITLE BACK IN
IC35
1, 2
3
MB, 23-9
1-3
18MHz (Y) IN
IC34
1, 2
3
VARIABLE
VA, 1-89
1-1
36MHz (X) IN
DL
IC30, 32-35, 38
SG, 1-61
1-109
36MHz (X) OUT
BKP-5090
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