Schematic Diagram - Monitor Board (1/3) - Sony ICF-DVD57TV Service Manual

ICF-DVD57TV
6-22. SCHEMATIC DIAGRAM – MONITOR Board (1/3) –
1 2 3 4
A
MONITOR BOARD
B
TP1420
C
R1939
B02
D
(Page 45)
21
IC B/D
MONITOR
IC1901
BOARD
(2/3)
POWER CONTROL
E BA9743AFV
B06
B08
B07
L1901
150µH
CN1406
10P
C1901
8V 1
0.01
F
8V 2
J INV-GND 3
L1902
INV-GND 4
8.1 10µH
8.2
MAIN
P-GND 5
BOARD
F1901
P-GND 6 Q1904
(1/4) 0.5A
2SB1694
50V
CN406 P-GND 7 R1937
7.3
47k
(Page
8V 8
8V 9 Q1902,1904
36) R1938
B+ SWITCH R1903
2.2k
G 8V 10 22k
0 R1936
2.2k
Q1902
2SC4081-T106R
0.7
H
I
CN1403
6P
F V-GND 1
R-Y 2
MAIN
V-GND 3
BOARD
B-Y 4
(1/4)
CN403 V-GND 5
(Page Y/CVBS 6
J
36)
C1569 R1573
4.7
1000p
K
ICF-DVD57TV
All manuals and user guides at all-guides.com
• See page 47 for Waveforms. • See page 50 for IC Block Diagrams.
5 6 7 8
(1/3)
R1925 R1929 R1914
10k 22k
220k
R1909 R1904 C1908
C1906
22k 47k
0.47
0.47
R1930
22k
R1911
100k
47k
C1913
1
R1919
Q1501, 1502
2.2k
SYNC SEPARATOR
8.1
2.5
16 15 14 13 12 11 10 9 R1542 R1540
5
22k 47k
3.4
Q1501
2SC4081-T106R
3.4
C1550
0.22
IC1901
R1577 R1536
4.7k
R1902 0
47k
1 2 3 4 5 6 7 8
31
R1533
R1932 1k
RV1901 22k
10k
C1545
22p
RV1901
4 C1546 L1506
R1532
5V 10p 47µH
0.4
2.2k
C1547
RV1902 4.6
7p
10k -1 C1539
0.1
R1910 100k -2
C1540
0.1
R1928 C1541
Q1903
22k 0.1
-1.5 IMZ1A
C1542
DV/DC
0.1
CONVERTER
R1917
10k
C1907 R1935
0.47 C1543
22k
R1913 0.1
R1534 10k
22k C1548
R1920
R1927 1
10k
10k
R1535
R1922 RV1902 R1931 10k
C1544
22k
10k
DV/DC CONVERTER 0.022
FREQUENCY
C1549
9p
X1501
3.579545MHz
22
MONITOR
BOARD
(2/3)
(Page 45)
9 10 11 12 13
(Page 46)
24
MONITOR
BOARD
(3/3)
F1801 1A 32V L1801 100µH
3.1
Q1505
R1527 R1525 3.6
4.7k
4.7k 2SC4081-T106R
D1501 R1520 Q1503
1SS356-TW11 10k 2SC4081-T106R
3.1
C1529 C1527
0.47 R1516
22 R1517
50V 16V 22k 10k
Q1504
C1525
R1529 2SC4081-T106R C1524
220k BUFFER 2200p
Q1503,1505
0
SINC DET
C1533 R1523
1000p 10k
R1515
C1534 2.4 100K
100p
C1535
100p
R1530
470 R1519 R1518
47k 100k
R1514 R1513
R1531
100k 470k
1k
5
C1536
Q1502
4.7
2SC4081 50V
-T106R
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
2.7
C1537
2.2
3 2.9
49 PONRST HDOUT 32
3.1
50 COMDC VDOUT 31
C1538
4.7
51 SECAM BLACK ADJ RWMOUT 30
50V
3.1 3.1 C1521 1
52 YIN VCC3 29
2.3 4
53 CTRAPOUT VCOMOUT 28
2.4 2.5
54 CTRAPIN R-OUTDET 27
2.7 2.5
55 YDET R-OUT 26
IC1501 R1511 47
3.6 7.3
56 ACCDET VCC2 25
3.1 2.5
RGB DECODER
57 CIN VREFDRIV 24
5 IC1501
58 VCC1 AN2546FH-AV GND1 23
2.5
59 GND3 G-OUTDET 22
2.5 2.5
60 KILLDET G-OUT 21
R1510 47
2.5 2.5
61 APCDET B-OUTDET 20
TP1510
2.5
62 SCOUT B-OUT 19
2 0
63 VXO-NTSC BLANK 18
0
64 VXO-PAL YS 17
32
37
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
IC B/D
2 2 5 2 0 0 0 0 0 0
L1502
100µH
C1504
2.2
50V
L1501
47µH C1502 C1503
0.1 0.1
R1505
C1501 R1506 C1506
47 4.7k 10k
0.1
25V
C1501
R1503 47k
2.2k
R1508
R1502
10k
R1579
10k
4.7k
R1504 C1505
R1507
4.7k 2.2
4.7k
50V
44 44
14 15 16 17
C1801
47
25V
R1810
R1803 R1802 R1820
22k 100k 220k
10k
R1819
10k
R1512
10k
R1804
0 C1805 C1811
0
0.01 1
0.7
C1804
1
C1813
0.01
R1811
1 100k
20 19 18 17 16 15 14 13 12 11
L1505
100µH
C1523
47
25V
C1522
1
1 2 3 4 5 6 7 8 9 10
36
35
R1806
470k
HDOUT
C1814
VDOUT
0.01
R1805
1k
34
R1808
2.2k
C1520
2.2
R-OUT
50V
C1812 R1813
C1519
1 4.7k
0.1
C1518
R1812 C1803 C1806 C1810
0.01
100k 0.022 1 0.1
C1517
2.2 G-OUT
50V
C1516
2.2
B-OUT R1807
50V
1k
R1509 47
33
C1515
47
25V
C1514
0.1
23
MONITOR
BOARD
(3/3)
(Page 46)
18 19 20 21
C1816
0.47
38
IC1801
LCD BACK
LIGHT CONTROL
IC1801
MP1015
IC B/D
3 8
C1819
CN1801
15p
2
2P
3150V LCD1 (2/2)
7 LIQUID CRYSTAL
DISPLAY MODULE
C1818 (BACK LIGHT)
4
470p
6
5
T1801 R1821
INVERTOR 100k
TRANSFORMER
R1818
470
R1816
220k
C1820 R1817 R1822
4700p 220 1k