Sony DSR-250 Service Manual page 91

For Schematic Diagram
• Refer to page 4-11 for printed wiring board.
• Refer to page 4-121 for waveforms.
1 2 3
CD-274 BOARD
L100
CCD IMAGER
A 100uH
-REF.NO.:1000 SERIES-
C102
22u
XX MARK:NO MOUNT
16V
B
NO MARK:REC/PB MODE
C131
R :REC MODE 2200p
B
P :PB MODE
C100
0.1u
B
R112
3
B
200k
9 10 11 12 13 14 15 16
IC101
CCD IMAGER
C
8 7 6 5 4 3 2
2
6
100uH
D L101
C103
22u
C132 0.1u
16V
B
C133
2200p
B
C101
0.1u
B
4 R113
200k
E
9 10 11 12 13 14 15 16
IC102
CCD IMAGER 3
2 1
7
F
8 7 6 5 4 3 2
G
2
1
1 2 3 4 5 6 7
H
IC100
3
CCD IMAGER
16 15 14 13 12 11 10
I 5
R114
16 4
200k
C135
4 5 6
C130
0.1u
B
C112
4 5
4.7u
16V
A
IC103
AMP
IC103
AD8014ART-REEL7
1 C113
4.6
10u
2.4
10V
TA
A
2.5
R100
5600 2.4
C117 R109
0.1u 82
R101
1 B
4700
R-6.7/
L106
P0
100uH
C104
4.7u
B
B
C114
4.7u
16V
R1.9/
A
P0
5
IC104
R107
82
AMP
R108
IC104
1k
AD8014ART-REEL7
C115
4.6
10u
2.4
10V
TA A
2.5
R102
1
5600
2.4
R-6.7/
C118
P0
0.1u
B L104
100uH
C105
4.7u
B
L105
100uH
C108
R111
10u
82
10V
2.4 4.6
TA
A
R110
1k
2.5
8 2.4
C110
R105
4.7u IC105
5600
B
AD8014ART-REEL7
8 IC105
AMP
C109 C119
C120
4.7u 22u 0.1u
16V 16V B B
9
A
L107
100uH
C134
2200p
B
0.1u B
4-9
7 8 9
SIGNAL PATH
VIDEO SIGNAL
CHROMA Y Y/CHROMA
REC
PB
CN100 50P
50 GND
H1G
H1G
48
46 SUBG
44 GND VDDG
G_CCD_OUT
42
GND
40
38 VDD2G
V3G
36 V3G V2AG
V2BG
34 V2BG
H1R
32 H1R
30 SUBR VDDR
28 GND
26 R_CCD_OUT
24 GND
22 VDD2R V2BR
V2AR
V2AR
20
V1R
18 V1R VDD2B
V2BB
V2AB
16 V2BB
V3B
V3B
14
12 GND
10 B_CCD_OUT
GND
8
H1B
6 H1B
4 SUBB VDDB
GND
2
TO
VI-156 BOARD(1/25)
CN025
(SEE PAGE 4-13)
Precautions Upon Replaching CCD imager
• The CD-274 board mounted as a repair part is not equipped
with a CCD imager.
When replaching this board, remove the CCD imager from the
old one and mount it onto the new one.
• If the CCD imager has been replaced, carry out all the
adjustments for the camera section.
• As the CCD imager may be damaged by static electrictiy from
its structure, handle it carefully like for the MOS IC.
In addition, ensure that the receiver is not covered with dusts
nor exposed to strog light.
10 11
GND 49
H2G
H2G
47
RGG
RGG 45
43
GND 41
VLG
39
V1G
V1G 37
V2AG
35
H2R
H2R
33
RGR
RGR 31
29
GND
27
GND 25
VLR 23
V2BR
21
V3R
19
17
V2AB
V3R
15
V1B
V1B
13
VLB 11
GND 9
H2B
H2B
7
RGB
RGB 5
3
GND 1
4-10
DSR-250/250P
CCD IMAGER
CD-274