ICF-DVD57TV
36
36
ICF-DVD57TV
6-14. SCHEMATIC DIAGRAM – MAIN Section (1/4) –
•
See page 47 for Waveforms.
•
See page 50 for IC Block Diagrams.
R
AUDIO
VIDEO
INPUT
L
MAIN
BOARD
11
(3/4)
BOARD
MAIN
(4/4)
12
MONITOR
(1/3)
CN1403
F
BOARD
(2/3)
BOARD
MONITOR
CN1404
G
BOARD
MONITOR
H
(2/3)
CN1405
CN1406
BOARD
(1/3)
J
13
MONITOR
BOARD
(2/4)
MAIN
21
IC B/D
IC B/D
(4.7)
(4)
(9)
(4.5)
(7.7)
(7.5)
(9)
(3.5)[0]<<3.5>>
(3.6)[0.8]
<<0.8>>
(4.7)
[4.4]
[5.1]
[5.1]
[0.3]
[5.1]
[5.1]
[0]
[3.7]
[5.1]
[2.8]
[3]
[3.7]
[5.1]
[2.4]
[0.3]
[0]
[2.9]
[9]
[4.1]
[4.1]
[5.1]
[3]
[0]
[9]
[0]<<3.7>>
[0]<<3.7>>
[4.4]
[4.4]
[4.4]
[4.4]
[4.4]
[4.4]
[4.4]
[8.9]<<0>>
[8.9]<<0>>
[8.9]<<0>>
[0]
<<3.7>>
1
A
6P
CN403
1
V-GND
2
R-Y
3
V-GND
4
B-Y
5
V-GND
6
Y/CVBS
11P
CN404
1
u-COM GND
2
3.9V
3
TUNER MUTE
4
TUNER MODE
5
TUNER F MONO
6
TUNER AFT(A/D)
7
TUNER AGC
8
TUNER SDA
9
TUNER SCK
10
TV/AUX
11
TV/AUX AMUTE
7P
CN405
1
DVD ON
2
RESET
3
U-COM RDATA
4
u-COM CLK
5
u-COM SDATA
6
u-COM LATCH
7
TFT OPEN
10P
CN406
1
8V
2
8V
3
INV-GND
4
INV-GND
5
P-GND
6
P-GND
7
P-GND
8V
8V
8V
8
9
10
IC501
NJM2234V
1
TIN
2
TV/AUX
3
VIN
4
DVDON
5
DVDIN
6
VCC
7
TOUT
8
VEE
R509
4.7k
L501
22
µ
H
L502
10
µ
H
L503
10
µ
H
C501
470
10V
C502
1
C503
0.01
C504
22p
R501
1k
C505
22p
R502
1k
C506
22
25V
R503
10k
Q501
2SD601A
C507
0.01
C508
1
R504
100k
R506
47k
R507
220k
R508
220k
R505
220k
C509
4700p
R510
4.7k
DTA124EUA-T106
Q502
DTA124EUA-T106
Q503
Q502, 503
AUDIO MODE
SELECT SWITCH
R511
1k
C510
100p
R512
1k
C511
100p
R516
1k
C512
100p
C515
10V
470
L504
22
µ
H
C513
1
C514
0.01
C517
0.01
C516
1
R519
0
10V
C518
470
R520
1k
R521
0
R522
1k
16V
C519
47
R525
10k
R527
10k
R526
10k
R524
10k
R530
2.2k
R531
2.2k
50V
C523
10
10V
C521
470
R544
10
R533
0
R532
100k
2SC4081-T106R
Q505
C520
16V
100
C522
0.01
R534
1K
R536
470
R539
100
R541
2.2k
16V
C528
220
IC502
TG40668FT
1
LVIN
2
LOUT
3
LOUT
4
LTIN
5
TUNER CONT
6
TUNER CONT
7
VSS
8
RTIN
9
ROUT
10
ROUT
11
RVIN
12
AUX CONT
13
AUX CONT
14
VDD
R542
1k
16V
C524
100
C525
0.01
L505
100
µ
H
R529
1k
R528
1k
Q504
DTC144EUA
INVERTER
R523
47k
0
R518
R517
10k
R543
10k
50V
C137
0.47
R119
4.7k
C139
1000p
R124
100k
R123
100k
R122
0
50V
C111
0.47
C239
1000p
50V
C237
0.47
R219
4.7k
R224
100k
R223
100k
50V
C211
0.47
R222
0
R535
2.2k
R540
2.2k
C527
10
C529
0.01
50V
R515
100
R514
470
R513
1k
R153
100k
R253
100k
C138
100p
C238
100p
R220
22k
JK501
R545
100k
R120
22k
RESET
u-COM_R_DATA
u-COM_CLK
u-COM_S_DATA
u-COM_LATCH
TU_SCL
TU_SDA
T
A
TU_AGC
TU_AFT
TU_MUTE
RY
BY
TU_MUTE
TU_AFT
TU_AGC
TU_SDATA
TU_SCL
9
H
E
10
14
C
16
D
I
11
6
5
F
15
7
12
J
G
2
3
B
K
4
13
8
NC
5V(TU)
SCL
SDA
AS
VIF
RF AGC
5V(IF)
AFT OUT
DET OUT
GND
ST IND
SAP IND
24
25
26
20
5
21
14
4
3
15
23
22
1
2
17
13
18
19
6
16
MODE
F MONO
MUTE
9V(MPX)
R OUT
L OUT
5V(D/D)
VHF/UHF
(1/4)
MAIN BOARD
D02
C01
CN401
2P
S401
DISPLAY
RELEASE
BOARD
DETECTION
C02
C04
C05
D03
D04
D05
D06
C03
B02
IC501
IC502
AGC
VIDEO INPUT
SELECT SWITCH
TU501
TV TUNER UNIT
(BTF-PA402Z)
TV/AUX AUDIO
SELECT SWITCH
2
1
VIDEO AMP
(Page 38)
(Page 39)
(Page 37)
(Page 44)
(Page 45)
(Page 45)
(Page 44)