Overall Block Diagram 1 - Sony DSR-20MD Service Manual

BLOCK DIAGRAMS

3-1. OVERALL BLOCK DIAGRAM 1

VA-102 BOARD
RE-32 BOARD (1/2)
(SEE PAGE 4-57)
J101
(1/2)
CN102 CN401
Y
9 7
S-VIDEO
C
11 5
INPUT
V
13 3
VIDEO
SDC
DET SDC DET
15 1
Y
3 13
S-VIDEO
C
5 11
OUTPUT
V
7 9
VIDEO
MONITOR
MONITOR
1 15
VIDEO
05
SECTION 3
(SEE PAGE 4-63 to 88)
IC201
IC203
S-VIDEO/VIDEO SWITCH
S-Y/Y SWITCH
3
7 3
1
1 2
2
2
3
IC207
IC202
1
DIGITAL COMB FILTER
BUFFER
FL
25 31
201
IC204
FL S-C/C SWITCH
39 IC206
202
OSC
11 4 1
IC401
Y SWITCH
5 4
1
Y
9 1 7
3
IC408
2
VIDEO
V
BUFFER
12
1
C
7 7
3
2
IC653
IC402
MONITOR OUT
C SWITCH
SELECT
3 25 3
7
2 1
IC651
ON SCREEN
DISPLAY
2
8 12 9
X651
9 13 5
14.3MHz
: DSR-20MD 10 11
17.7MHz
: DSR-20MDP
500KHz
11
22
23
24
3-1
IC205
Y AGC
14 FL204 DL201
7 7
FL203
11
FL205
IC208
NTSC DECODER
7 5 25
20
28
19
24
10
X201
18 14.3MHz
: DSR-20MD
17.7MHz
: DSR-20MDP
IC407
IC213
4
1
26
1
12
IC210
40 1 47
20
IC404 4
CHROMA DECODER
X402
IC852 (1/2)
14.3MHz :
HI-CON
DSR-20MD
17.7MHz :
22
DSR-20MDP
3 23
IC405
ON SCREEN
24
8
DISPLAY
9 25
12 13
2 9 5
10
X401
IC403
500KHz
11 SYNC SEP
33
8 32
IC652
SYNC SEP
X652
65
52
51
17
16
Q102
3V 5V
Q103
3V 5V
12
Q107
25
3V 5V
NPS
Q108
24
3V 5V
30 31
IC865 IC866
X403
14.3MHz COMPARATOR INVERTER J851
: DSR-20MD
IN
13 4 2
17.7MHz
: DSR-20MDP
CONTROL
J852
4 11
OUT
6 8
IC851
1
BUFFER
2 CN851
61
IR
12
5 4 27
69
91 1 30
POW, KE0-5
ı 6 25
96
ı ı
11 20
99
DATA TO HI
12 19
46
FLD CS
30 19 12
LED CS
27 14 17
DATA FROM HI
47
16 15
HI SCK
48 18 13
LED RST
18 13 18
BUZZER
62 20 11
IC861
LANCOUT
J853
25 4 14
LANC
11
29 10
10 12
5 12
3 4
4 10 IC853
9 MULTI
26 ı PLEXER
11
3 13
3-2
DSR-20MD/20MDP
A-1
A-2
A-3
A-4
A-5
A
A-6
(SEE PAGE 3-3)
A-7
A-8
A-9
A-10
A-11
A-12
A-13
A-14
FR-136 BOARD
IC105
CN104
(SEE PAGE 4-107)
REMOTE CONTROL
RECEIVER
FUNCTION KEY
AUDIO MONITOR, INPUT SELECT, UP, DOWN
POWER, EJECT, TIMER, COUNTER SELECT SET,
MEMU
5
9
LED
12
IC103 1
DUP, REC, PAUSE,
ı
14
LED
FF, REW, PLAY
1 6
IC104
DRIVER
11
FL
2
DRIVER
10
1
6
BZ101
(BUZZER)
2
8
FUNCTION KEY
1
ı
4
FF, REW, STOP, PLAY, DUP,
COUNTER RESET, PAUSE, REC 10
ı
13
15
ı
32
ND101
35
FLUORESCENT INDICATOR TUBE
39
ı
44
B-1
B-2
B-3
B
B-4
(SEE PAGE 3-3)
B-5
B-6
B-7