Dc/Dc Converter 2) Schematic Diagram - Sony DSR-50P Service Manual

DSR-50/50P
VD-28 (DC/DC CONVERTER 2) SCHEMATIC DIAGRAM • See page 4-71 for VD-28 printed wiring board.
1 2 3 4
VD-28 BOARD (15/15)
DC/DC CONVERTER 2
A
-REF.NO.:10,000 SERIES-
NO MARK:REC/PB MODE
F913
F902
630mA/24V
630mA/24V
87 UNREG
B
VD-28 BOARD (13/15)
GND
C R1910
5600
R1909
560k
R1940
1k
D
C1903 C1906 R1922
R1936
XX
39k 0.001u 33k
R1915 C1911
10k
XX
R1916
47k
C1904
XX
E
R1912 C1910
R1934
4700 XX
100k
R1923
R1941 33k
R1911
100k
47k C1907
100p
C1905 C1913
XX XX
F C1909
R1925
R1917 0.01u
33k
4700
C1917 C1915
XX XX
R1907
R1929 C1914 R1926
0
10k 0.001u 33k
R1908
36k
C1928
G XX
C1924
XX
C1921 R1938
R1946
10k 0.001u 33k
R1948 R1950
39k 6200
H
89-1
89
I VD-28 BOARD (13/15)
89-2
89-3
90
90-1
VD-28 BOARD (14/15)
05
DC/DC CONVERTER 2
VD-28 (15/15)
5 6 7 8
C1969
0.1u
C1922 C1929 R1949
C1918 0.1u 100p 12k C1930
2.2u
2.2u
20V 35V
L907
10uH
2.2 1 0 1 1 13.5
12 11 10 9 8 7 6 5 4 3 2 1
C1932
2.2u
35V
1
0.5 9.9
0.3 7.2
0.5 13.5
IC902
0.7
1
IC902
0.9 FA3675F 8.7
1 8.1
1 12.2
0.8
1
25 26 27 28 29 30 31 32 33 34 35 36
1 0 0 2.6
C1931 C1920
R1960 R1959 R1958
3.3M 1u 2.2u
3.3M 3.3M
16V 20V
C1926
R1918 0
0.1u
L909
0 10uH
R1937
0 1k
Q939
2SK3018-T106 CL924
2.9 2.9
9.8
Q935 R1967
UN9113J-(K8).SO 100
R1939
0
220k
2.4 CL925
Q936
2SK3018-T106
R1930 R1983
XX 220k
4-103
9 10 11 12
D915
RB051L-40TE25
Q926
CPH3304-TL
FB912
13.5
0.1
C1948
C1935 C1941
L911
9.9 47u
0.1u 22u 47uH
25V
50V
Q912
D906
L901 CPH6302-TL L912
5 100uH MA729-(K8).S0
10uH
4 6
1
5.5 2 5.5
R955 C934 FB914
0.1u
1M
3 C947
C946 5.5
0 22u C960
0.1u
R957 0 7.2 22u
50V
Q921
2.9 100k 50V
CPH3404-TL
Q910
2SK3018-T106
Q927
CPH3304-TL L930
47uH
FB916
13.5
5.1
C1953
C1939 C1945
8.7
22u
0.1u 22u D916
20V
20V RB051L-40TE25
Q929
CPH3304-TL L931
FB918 47uH
13.5
5.7
C1988 C1989 8.1 C1990
0.1u 22u 47u
D917
50V 25V
RB051L-40TE25
Q933
CPH3304-TL L932
100uH
FB920
13.5
4.6
C1937 C1943 C1950
12.2
0.1u 22u 22u
D918
50V 50V
MA729-(K8).S0
13 14 15 16
L935
CL922 10uH CL954
L936
10uH CL956
C1954 C1949
4.7u 4.7u
C985 C986
10u 10u
20V 20V
L914
10uH
L925
100uH CL937
CL932
L934
10uH CL958
C961 C1951 L929
2.2u
2.2u 100uH CL960
C992 C994 C978 C962
10u 10u 10u 10u
20V 20V 25V 20V
IC903
XX
6
CL923
C1959
C1952
4.7u 4.7u
1 2 3 4 5
L917
XX
C966
XX C972
XX
CL917
C1991 C1955
4.7u 4.7u
CL915
C1956 C1957
4.7u 4.7u
D928
01ZA8.2(TPL3)
The components identified by mark 0 or dotted Les composants identifiés par une marque 0 sont
line with mark 0 are critical for safety.
critiques pour la sécurité. Ne les remplacer que
Replace only with part number specified. par une piéce portant le numéro spécifié.
4-104
17 18 19
91
AUDIO_-5V
VD-28 BOARD (14/15)
SW_+6V
76
SW_+5.5V
VD-28 BOARD (11/15)
SW_-5.5V
SW_-5.5V 80
VD-28 BOARD (12/15)
SW_+5.5V
32
UNREG
VD-28 BOARD (3/15)
GND
8
VD-28 BOARD (1/15)
DIG_+5V
17
VD-28 BOARD (2/15)
DIG_+5V
35
VD-28 BOARD (3/15)
DIG_+5V
53
DIG_+5V VD-28 BOARD (7/15)
78
DIG_+5V VD-28 BOARD (12/15)
SW_+4.6V
SW_+12V
59
VD-28 BOARD (7/15)
SW_+5.5V
GND
CN906 XX
CL949
1 FAN +5V
CL950
2 GND
CL934
FAN_ON 84
MAIN_DD_ON VD-28 BOARD (12/15)
LCD_DD_ON