Schematic Diagram - Main Section (4/4) - Sony ICF-DVD57TV Service Manual

6-17. SCHEMATIC DIAGRAM – MAIN Section (4/4) –
1 2 3 4
A
MAIN BOARD
(4/4)
B
C
D
R911 D911
1k
1SS355
E
L905
22µH
R917
10k
F
D03
12
D04
R927 R928
D05
MAIN 4.7k 22k
BOARD D06
(1/4)
D02
(Page
R936
D913
1k
1SS355
IC903
36)
G
+3.3V
REGULATOR
L908
IC903
22µH
BA33BCOFP
(5.1)
(3.1)
O I
R941
3 G 1 100k
2
H
C953
C960 C959 R950
100
0.01 0.01 22k
16V
I
J
ICF-DVD57TV
• See page 47 for Waveforms. • See page 50 for IC Block Diagrams.
5 6 7 8
Q907, 909
TH902
REGULATOR CONTROL
24
L903
16.7 F903
O(8.2) (13.7) 16.7 22µH
S 3.5A
R915
1 4 (13.7) 72V
2.2k 4 3
2
L904
22µH 5
6 3 16.7
R918
IC952
(16.6)
220
Q907
R916
2SC4081-T106
47k TEMPERTURE
DETECT
16.2
C928 IC952
25
16 R929 (6.4) 100p XC61CN3502NR
(6.6) 47 1 2
3.9
R930
Q908 16.7
3.7
(6.6) 220
TCP6102
Q909
SWITCHING
2SA1576A
REGULATOR C983
C938 R972
0.1
100p 100k
D908 RB501V-40
26
Q916 Q913, 918
REGULATOR CONTROL
TCP6102
SWITCHING
REGULATOR
L906
16.7
F904
(13.7) 16.7 22µH
O(5.1) S
R937 3.15A
1 4 (13.7)
2.2k 4 3
72V
2
L907
22µH 5
6 3 16.7
R938 IC951
(9.2)
220
15.9 Q913
R940 (9.2) 2SC4081-T106
220k
TEMPERTURE
DETECT
16.2
C945
(9.4)
R949 100p IC951
47 1 2 XC61CN3502NR
3.9
R957
27 16.7
3.7
(9.2) 220
Q918
2SA1576A
C947
C971 R969
0.1
100k
100p
TH901
9 10 11 12 13
IC901
+5V REGULATOR
IC901
XC6202P502PR
(5) O I
1 G 3
2
C918 C978
100
0.1
16V
Q903
2SA1576A R907
0 0 Q905,906
SWITCHING 220
C919 IC902
R910 R909 MONITOR ON
0(2.5) 1
1k 0(2.5) 22k SWITCH
+9V REGULATOR
Q902 R913 16.7(13.7) IC902
0 2SC4081 47k XC6202P902FR
0
(2.5)
(2.5) Q905 16.7(0)
R914 C925
DTA144EUA 9 O I 16.7
47k 0.01
1 G 3
0.4(13.7) 2
R923 C929 R921
220k
47k 470p C921 C923
0(3.1)
470 0.1
10V
R924
C930 R925 R922
0.01 10k 220k
47k
Q910
2SA1576A
R971
DEAD TIME
0(1.5) 10k
0(2.5)
R934
100k 0
IC904
(2.5)
R935
+3.9V REGULATOR
47k
IC904
XC6201P392PR
C941
3.9
2.2 O
16 15 14 13 12 11 10 9 1
C942
10
50V
IC905
C943
0.01
POWER CONTROL
IC905
BA9743AFV
IC B/D
1 2 3 4 5 6 7 8
28
R945 0(1.5)
0(2.5)
47k
Q917
R948
220k 2SA1576A
R953 DEAD TIME
22k
0
R958
(2.5) R956
100k
47k
C970
0.47
C966
2.2
D925 D924
1SS355 1SS355
D907 RB501V-40 R968 10k
D915 D914
1SS355 1SS355
17 MAIN BOARD
(Page 38)
39 39
14 15 16 17 18
(Page 37)
16
MAIN
BOARD
(2/4)
(9)
C920
C917
22
0.1
25V
9 0(9)
Q901
2SB1694 CN901
6P
C913 C914
4700 0.01
9 25V
(8.2)
R906
100k
Q901,904
MONITOR ON
R978 SWITCH
R908
47k 22k
9(0.1)
0(0.7)
Q904
R912
2SC4081-T106R
47k
C915
4700
16V
C916
0.01
Q911,914,919,923,924
+5V REGULATOR
Q911
2SD2396K
5 12.9
-1.2
R942
Q924
D916
47
2SA1576A DA204U
R975
5.6 12.3
1K
5.6
5 11.6
I
G 3
C982 R946
1 220
2 R974
5.7
1k
5.6 Q914
R951
2SA1576A
10k
0
2.7
0 Q919 0.7
2SC4081-T106R
C972
C974
C984
470 0.01
10V 1000p
C981
Q923
22 DTC144EUA C976 R964
25V 0.01 4.7k
R966 2.2k
C985
100p
Q912
Q913,915,920-922
+6V REGULATOR 2SD2396K
6.2 12.9
-1.2
Q922 R943
D917
47
2SA1576A DA204U
R977 6.7
12.3
1K
6.7
11.6
C980 R947 Q915
R976 1 220
6.7 2SA1576A
1k
6.7
R952
10k
0
2.7
0.7
0 Q920
2SC4081-T106R
C973
470 C975
CN902
0.01
10V
1P
C979
Q921
22 DTC144EUA C977 R965
25V 4.7k
0.01
R967 2.2k
(3/4)
ICF-DVD57TV
19 20 21 22
TRANS BOARD
C903
0.1
D901
RBV-406H
2 C905
0.1
1 4
3
C902 C904
0.1 0.1
6
C906
0.1
T901
POWER
F901
TRANSFORMER
D905 2.5A
125V
1 1SS355
D906
1SS355
R902
47k
F902
C907
2.5A
0.1 125V
(AC IN)
L901
L902
C909 D902
0.1 RBV-406H
2
C901
100p
1 4
C912
0.47
3
R901
1M 1/2W
C908 C910
0.1 0.1
D
TU
BOARD
(Page
33)
(SHIELD)
(HINGE)