Sony DSR-20MD Service Manual page 41

JC-19 (U1) SCHEMATIC DIAGRAM • See page 4-15 for JC-19 printed wiring board.
• See page 4-120 for waveforms.
1 2 3 4
JC-19 BOARD (6/18) U1
-REF.NO.:2,000 SERIES-
A XX MARK:NO MOUNT
36-1
36-2
GND
36-3
B
J_3.1V
36-4
C
GND
J_2.1V
D
C403
0.1u
F
C402
0.1u
R3.1/P0
F
U31 0
U32
3.1
E
U33
U34
U35
U36
U37
U38
U39
F
U40
U41
1.4
3.1
U42 3.1
U43
U44
36
U45
U46
TO JC-19 BOARD (5/18)
(SEE PAGE 4-28)
G U47
U48
U49
0.9
U50 0.7
U51
U52
U53
H
U54
36-5
3.1
36-6
U55 0
U56 0.3
U57 1.4
2.1
3.1
J_3.1V
I
U58 3.1
U59 0.3
R401 1k
U60
U61 2.8
U62 3.1
3.1
J
3.1
36-7
36-8
K
L
36-9
36-10
05
36-11
5 6 7 8
NO MARK:REC/PB MODE
R:REC MODE
P:PB MODE
2.1
176 175 174 173 172 171 170 169 168 167 166 165 164 163 162 161 160 159 158 157 156 155 154 153 152 151 150 149
R1.5/P1.2
R1.5/P1.2
R2.1/P1.4
R2.5/P1.3
22
R2.3/P1.3
R2.4/P1.3
R2.3/P1.3
R2.3/P1.3
22
23
R1.4/P1.1
R1.7/P1.1
R1.3/P1.1
24
R1.8/P1.6
R1.2/P1.7
R0.5/P1.4
IC401
CXD3103R
24
IC401
R0/P0.2
R0/P0.2
R3.1/P1.5
R0/P1.6
25
26
0.1
45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88
0 2.1
4-29
9 1 0 1 1 1 2
148 147 146 145 144 143 142 141 140 139 138 137 136 135 134 133
3.1
1.5 U116
1.4 U115
1.8 U114
1.9 U113
1.6 U112
R1/P1.4 U111
1.3 U110
R2.3/P2 U109
1.6
2.9
1.5
1.6
2.1
1
1.2
R1.8/P1.4
R1.5/P2
1.5
0.9
1.7
1.5
2.9
1.4
1.9
1.4
1.3
3.1
1.5
1.9
1.8
1.5
1.5
3.1
3.1 U86
2.9 U85
2.7 U84
2.9
U83
3.1 U82
1.4
26
0 0 2.1
1 3 1 4 15 16
100 99 98 97 96 95 94 93 92 91 90 89 88
3.1
U116
1.5
U115
1.4
U114
1.8
U113
1.9
U112
1.6
U111
R1/P1.4
U110
1.3
U109
R2.3/P2
IC402
U108
1.6
ZA4024
U107 2.9
IC402
3.1
U106
1.5
U105
1.6
U104
U108 1
U103
1.2
U107
U106
U105
U102
U104
U103
U102
U101
U100
U99
26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
U98
U97
U96
U95 3.1
U94
U93
U92
U91
U90
U89
U88
U87
SIGNAL PATH
VIDEO SIGNAL
CHROMA Y Y/CHROMA
REC
PB
4-30
DSR-20MD/20MDP
17 18 19
87 86 85 84 83 82 81 80 79 78 77 76
3.1 U87
1.5
U88
1.5 U89
1.8 U90
1.9 U91
1.5
U92
1.3 U93
1.4 U94
R1.9/P1.6
U95
1.4
U96
2.9
3.1
3.1
U97
1.5
U98
1.7 U99
0.9 U100
1.5
U101
R1.5/P2
C405 3.1
0.01u
U1
JC-19 (6/18)