Schematic Diagram - Main Section (1/4) - Sony ICF-DVD57TV Service Manual

ICF-DVD57TV
6-14. SCHEMATIC DIAGRAM – MAIN Section (1/4) –
1 2 3
A
MAIN BOARD
(1/4)
B
VHF/UHF
1 2 3 4 5 6 13 14
C
L501
22µH
R505
220k
L502
10µH
D
L503
10µH
R504
100k
R507
220k
E
R508
C501
220k
470
[0]
10V
[3.7]
Q501
2SD601A
AGC
F
G
C01
C02
H
11
C03
MAIN
BOARD
(3/4)
(Page 38)
C04
I C05
12 D02
D03
MAIN
D04
BOARD
D05
(4/4)
(Page 39) D06
J
K
ICF-DVD57TV
• See page 47 for Waveforms. • See page 50 for IC Block Diagrams.
4 5 6 7
TU501
TV TUNER UNIT
(BTF-PA402Z)
15 16 17 18 19 20 21 22 23 24 25 26
R543
10k
[5.1]
[5.1]
Q502
[0]
DTA124EUA-T106
R509 [5.1]
4.7k
[5.1]
Q503
[0.3] DTA124EUA-T106
R510
4.7k
Q502, 503
AUDIO MODE
SELECT SWITCH
R523
47k
R517
10k
[8.9]<<0>>
[0]
<<3.7>>
R518
0 DTC144EUA
INVERTER
8 9 10
R524 R530 R532
R526
IC501 2.2k 100k
10k 10k
VIDEO INPUT
C518
SELECT SWITCH
470
R531 21
10V
2.2k
(4.7)
VEE
1 8
TIN
R519
(3.5)[0]<<3.5>>
0 (4)
TOUT
2 7
TV/AUX
R520 R544
C523
(9)
1k (4.7) 10
VCC 10
3 6
50V
VIN
R521
C519 (3.6)[0.8] (4.5)
0
16V
47 <<0.8>> DVDIN
4 5
DVDON
R522 R533
C521
1k 0
470
IC501
10V
NJM2234V
IC B/D
C522
0.01
C520
100
16V
L505
100µH
R535
2.2k
R529
1k
R123 R124
100k 100k
[4.4] [9]
LVIN VDD
[4.4] [0]<<3.7>>
R122
C111
0 LOUT AUX CONT
0.47
[4.4] [0]<<3.7>>
50V
LOUT AUX CONT
[4.4] [4.4]
LTIN RVIN
[8.9]<<0>> [4.4]
R119
C137
TUNER CONT ROUT
4.7k
0.47
[8.9]<<0>> [4.4]
50V
TUNER CONT ROUT
R528 [4.4]
VSS RTIN
1k
IC502
IC B/D
TG40668FT
IC502
Q504 C139
TV/AUX AUDIO
1000p C524
SELECT SWITCH 100
16V
36 36
11 12 13
DETECTION
CN401
2P
1
2
R220
22k
Q505
2SC4081-T106R
VIDEO AMP (9)
R120
(7.7)
22k
(7.5)
C528
220
16V
R515
R542 R513
1k 1k 100
R514
R541
2.2k 470
RY
BY
CN404
11P
TU_MUTE
TU_AFT
C527 C529
10 0.01 TU_AGC
50V
TU_SDATA
C211
TU_SCL
0.47
R222
50V
0
CN405
R219 7P
C237
4.7k
0.47
50V
RESET
u-COM_R_DATA
u-COM_CLK
u-COM_S_DATA
C525 C239 u-COM_LATCH
0.01 1000p
CN406
10P
13
MAIN
BOARD
(2/4)
(Page 37)
14 15 16
BOARD
S401
DISPLAY
RELEASE
JK501
R
AUDIO
L INPUT
VIDEO
CN403
6P
1 V-GND F
2 R-Y
MONITOR
3 V-GND
BOARD
4 B-Y
(1/3)
5 V-GND CN1403
(Page 44)
6 Y/CVBS
1 u-COM GND
2 3.9V
3 TUNER MUTE
G
4 TUNER MODE
5 TUNER F MONO
MONITOR
6 TUNER AFT(A/D) BOARD
(2/3)
7 TUNER AGC
CN1404
8 TUNER SDA
(Page 45)
9 TUNER SCK
10 TV/AUX
11 TV/AUX AMUTE
1 DVD ON
H
2 RESET
3 U-COM RDATA
MONITOR
4 u-COM CLK BOARD
(2/3)
5 u-COM SDATA
CN1405
6 u-COM LATCH
(Page 45)
7 TFT OPEN
1 8V
2 8V
3 INV-GND
J
4 INV-GND
5 P-GND MONITOR
BOARD
6 P-GND
(1/3)
7 P-GND
CN1406
8V
8 (Page 44)
9 8V
10 8V