Schematic Diagram -Io-Component Board (Dz270/Hdz278) - Sony HCD-DZ7260 Service Manual

Q Q
3 7 6 3 1 5 1 5 0
6-20. SCHEMATIC DIAGRAM – IO-COMPONENT Board (DZ270/HDZ278) –
1 2
IO-COMPONENT BOARD
A
B
C
D
CN412
4P
A-GND 4
JL533
JACK
Q 3
F.Audio(R)
BOARD JL532
9V 2
CN106
JL530
(Page 53) F.Audio(L)/MIC1 1
E
T E
L 1 3 9 4 2 2 9 6 5 1 3
F
J404
V JL478
VIDEO OUT
R JL442
R
JL440
TV/VIDEO AUDIO IN
L JL441
L
G C468
G
2200p
D406
MC2837
C488
JL480 1000p
JL457
C467
G 1000p
7
G
6 JL453
Y
5
H
J401
BL 4 JL447
COMPONENT
P /C
B B
VIDEO OUT 3
JL445
R
2 JL444
P /C
R R
R
1
I
w w w
HCD-DZ260/DZ270/HDZ278
• See page 31 for waveforms. • See page 62 for IC Block Diagrams.
3 4 5 6
(DZ270/HDZ278)
R598 R600 R602 C558
100k 100k
47k 22 25V
C559
22 25V
R599 R601 R603
100k 100k
47k
R567
R566
C538
R564 47k
47k
22 25V
4.7k
R561 C537
C536
4.7k 220p
22 25V
R559
R551
4.7k C535 R552 R553
4.7k 220p 47k 47k
HDZ278
R539 R540
C530 R576
R538 47k
47k
22 25V
3.3k 0
C525
R533 C524 R562
220p
3.3k 22 25V
0
C521 R527 R528
220p 47k 47k
C499
R490 R491
22
R489
47k 47k
25V
4.7k
C495
R486 C496
22
4.7k 220p
25V
R485
R479 C491 R480 R481
4.7k
4.7k 220p 47k 47k
x a o
y
. i
http://www.xiaoyu163.com
7 8 9
R609
0
R610
0
R595
0
RT1N241C-TP-1
C541 C542
100 16V 0.1
9.1
16 15 14 13 12 11 10 9
0<9.1>
IC411 IC411
MC14052 BDR2
INPUT SELECT
IC B/D
1 2 3 4 5 6 7 8
0<9.1>
Q412
RT1N241C-TP-1
Q412, 413
INVERTER
Q Q
3 7 6
1 R473
0 (DZ270)
75 (HDZ278)
C474
5 5 470 10V
28 C480
Vcc2 Vcc1 1
C473
1
0.1
0
IC B/D IC404 S-DC OUT
27 2
Cin
3.3 VSEL0
IC404
26 C OUT MUTE1 3
MM1758AFBE
C470
1.1 R473 1
VIDEO DRIVER
S1 CVBSin
25 4
3.3 10 50V
C478 VSEL2
1000 24 S2 5
R468 YC MIX
HDZ278
6.3V
75 C476 10 50V
2.1 1.6
CVBS OUT
23 6
Yin
22 GND2 GND1 7 C466
22
C462
2.4
1000 21 Y OUT 8 50V
R452 BIAS
6.3V C463
75
2
0.1
20 CY OUT I/P 9
Y
C460 1
C458
3 1.8
R449 100 19 GND2 CYin 10
16V
75
1.6
18 11
Cb OUT CLP
C456 C457 1
2 2.7
100 17 GND2 Cb in 12
R439
75 16V
1.9 3.3 VSEL1
16 Cr OUT MUTE2 13
1
C454
1 2.7
15 14
GND2 Cr in
u 1 6 3
51 51
2 4
8 9 9
10 11 12
L407
10uH
D407
RB501V-40TE-17
IC413
IC413
KIA7809API
+9V REG
Q413
11.9 9.1
I O
R584 COM
3.2
1k
<0> ASEL0
C549 C552
C548
47 0.1
R582 1
16V
10k
R579
3.2
1k
<0> ASEL1
R516
R575 IC410
0
10k
BUFFER
C534
22
R548 470
25V
4.7 4.7 4.7 9.1
R544
R537
5 6 7 8
47k 4.7k
R515 -
+
0
+
R526 C522 -
3 1 5 1 5 0 8 9
47k 22
25V
4 3 2 1
C517
R529
22 4.7 4.7 4.7
4.7k
25V
R523 470
L404
10uH
5 6.5
4 5 6
IC620
C622 IC620
TK11250CMCL-G 1
+5V REG
3 2 1
1.3 11.8
C621
R620
1
1k
C620
0.1
m
c o
.
HCD-DZ260/DZ270/HDZ278
2
8 9 9
13 14 15
ANTENNA
COAXIAL AM
CN419
75½ FM
9P
JL543
1 L-CH
C557 JL544
C556
+ B 9V
0.1 100 16V 2
JL545
3 R-CH
TU401
4 GND
TD FM/AM
R542 JL547
TUNED
5 TUNER
0
CE
JL548
PACK
CE
6
DI JL549
DI
7
CK JL550
8 CL
DO JL551
9 DO
CN407
17P
TD R558 0 JL516
C481
17 TUNED
100p
CK R557 0 JL514
16 ST_CLK
JL512
DO
15 ST_DO
CE JL510
14 ST_CE
DI JL508
13 ST_DI
JL506
12 A12V
VSEL0 JL504
11 V_SEL0
JL502
VSEL1
MAIN
10 V_SEL1
JL500
M BOARD
9 TV_SEL
ASEL0 JL499 (5/9)
8 A_SEL0
CN603
ASEL1 JL498
(Page 43)
7 A_SEL1
JL497
6 A_SEL2
JL495
5 A_SEL3
JL493
4 A_SEL4
JL492
3 A_SEL5
VSEL2 JL490
2 V_SEL2
JL488
1 V_SEL3
CN418
5P
JL528
5 MUSIC L+R
MAIN
4 A-GND
JL526 G BOARD
3 R-IN
(7/9)
C533
2 A-GND CN702
1 50V
JL524
(Page 45)
2 4 9 8 2 1 9 L-IN 9
C518 R541
0
1
50V
CL501
CHASSIS
CN403
15P (DZ270)
CN402
DZ270 17P (HDZ278) HDZ278
JL470
R471
DMP_Lch
0 1
AGND
2
JL468
3 DMP_Rch
JL467
4 +6V
JL466
DMP_VIDEO
5
VGND
6
JL450
7 Y
R444
MAIN
8 VGND
150 0.5%
JL460
J BOARD
9 C
(6/9)
R445
VGND CN4302,
0.5% 10
150
JL456
CN4303
CY/G
11 (Page 44)
R446
12 VGND
150 0.5%
JL452
13 Cb/B
JL454
R447
14 VGND
150 0.5%
JL449
Cr/R
15
R448
VGND
150 0.5% 16
JL451
17 WIDE