Ad/Da Converter) Schematic Diagram - Sony DSR-20MD Service Manual

DSR-20MD/20MDP
JC-19 (AD/DA CONVERTER) SCHEMATIC DIAGRAM
1 2 3
JC-19 BOARD (1/18)
A
CN101 9P
CL102
UNSW_6V 1
CL103
UNSW_3.1V 2
CL105
VIDEO_5V 3
CL101
TO U-2 BOARD J_3.1V 4
CN11 CL171
(SEE PAGE 4-118)
GND 5
CL104
VIDEO_-5V 6
CL151
AUDIO_5V 7
B CL152
AUDIO_GND 8
CL153
AUDIO_-5V 9
1
AUDIO_GND
TO JC-19 BOARD (18/18)
AUDIO_-5V
(SEE PAGE 4-54)
AUDIO_5V
C
26
GND
TO JC-19 BOARD (13/18)
(SEE PAGE 4-43)
J_3.1V
7
J_3.1V
TO JC-19 BOARD (5/18)
GND
(SEE PAGE 4-27)
J_2.1V
D
30 AUDIO_5V
TO JC-19 BOARD (15/18)
(SEE PAGE 4-47)
J_3.1V
CN104 30P
CL107 R003
LALT 1
CL108 R004
BLK 2
CL109 R005
BF 3
E
CL189
N.C 4
R009
CL111
CLP2 5
CL193 R011
S1_COUT 6
CL194
GND 7
CL113
R013
Y_OUT 8
CL195
GND 9
CL114
R015
CR_OUT 10
CL196
GND 11
F
CL115 R016
CB_OUT 12
CL197
GND 13
TO VA-102 BOARD (1/12)
R017
CL116
CN102
SGH 14
(SEE PAGE 4-64) R018
CL147
XYCSEP 15
CL190
N.C 16
CL117 R020
NPSA 17
CL118 R021
NPSB 18
CL119
Y_IN 19
G
CL198
GND 20
CL120
CR_IN 21
CL199
GND 22
CL121
CB_IN 23
CL154
AFCY 24
CL065
CLPY 25
CL191
N.C 26
CL192
N.C 27
H
CL186
AGC_ADJ 28
CL187 R030
HUE_ADJ 29
CL188
VXO_ADJ 30
2-2(N.C)
2-3
2-4
I
2
2-5
TO JC-19 BOARD (3/18, 4/18)
2-6
(SEE PAGE 4-23, 25)
2-7
2-8
2-9
2-10
J
3
3-1
TO JC-19 BOARD (9/18)
(SEE PAGE 4-36) 3-2
4
UNSW_6V
UNSW_3.1V
TO JC-19 BOARD (11/18)
05 (SEE PAGE 4-39)
GND
K
L
AD/DA CONVERTER
JC-19 (1/18)
• See page 4-15 for JC-19 printed wiring board.
• See page 4-119 for waveforms.
4 5 6 7
AD/DA CONVERTER NO MARK:REC/PB MODE
R:REC MODE
-REF.NO.:2,000 SERIES- P:PB MODE
:IMPOSSIBLE TO MEASURE THE
XX MARK:NO MOUNT
*
VOLTAGE AT THE MARKED POINTS.
AD1
F.B.
AD2
F.B.
AD3
F.B.
F.B. AD4
AD5
XX
0
0
0
F.B.
F.B.
AD6
F.B.
AD5
F.B.
R199
1k
F.B.
L102 10uH
C181
R175 220
33p
CH
AD5
R176 1k
AD1
C179
C180
10u
AD2 0.01u
6.3V
AD3 1.9
1 2 3
1.3
AD4
FL101
6 4
Q039
2SA1576A-T106-R
R023
0
AD6
AD7
4-19
8 9 1 0
IC019
S-81322HG-KW-T1
IC019
1 2 3
2.2 3.1
C182
C183
C184
10u C185
0.01u 10u
0.01u
6.3V 6.3V
R062
Q050
1k
2SC4081T106R Q052
4.9 2SC4081T106R
2.0
Q051 2 C187
C186
4.9 XP6501-TXE 22u
22u A 6 4 A
4V TA 4V TA
5 3
2.8 2.8
R061
470 1 2
-0.6
3.4 1.4 3.4
R060 R063 R064
560 2200 2200 R065 R067
22k 560
Q040 Q042
2SC4081T106R
2SC4081T106R
R183
R192
1k Q043
1k
4.9
4.9
2SA1576A-T106-R
R182 1k
3.5
2
2 R185
1 2.9
1k
2.8
2 1.4 1 2 3 R012
R010 0 1.4
1.4
0
6 4
R178 R184
470 FL102 470
Q041
Q045
2SA1576A-T106-R
2SA1576A-T106-R
SIGNAL PATH
REC
PB
1 1 1 2 1 3 1 4
J_3.1V
2-11 TO JC-19 BOARD (3/18, 4/18)
(SEE PAGE 4-23, 25)
2-12
VIDEO_5V
GND
VIDEO_-5V
34-1
34-2
34-3
TO JC-19 BOARD (2/18)
(SEE PAGE 4-21)
R071
4.9
1k
2.0 4.9
Q053
XP6501-TXE
6 4 3
5 3
2.0
R068
470 1 2
-0.6 1.4
R070
R069
2200
2200
VIDEO_-5V
34-4
Q044
2SC4081T106R
4.9
3.5
2.9
R014
1 2 3
0
6 4
R187
4
FL103 470
TO JC-19 BOARD (11/18) TO JC-19 BOARD (11/18)
(SEE PAGE 4-39)
VIDEO SIGNAL
CHROMA Y Y/CHROMA
4-20
1 5 1 6 1 7
2
34
6 22
TO JC-19 BOARD (10/18)
(SEE PAGE 4-39) (SEE PAGE 4-37, 38)
TO VA-102 BOARD (1/12)
CN101
(SEE PAGE 4-63)