HCD-DZ260/DZ270/HDZ278
HCD-DZ260/DZ270/HDZ278
51
51
6-20. SCHEMATIC DIAGRAM – IO-COMPONENT Board (DZ270/HDZ278) –
• See page 31 for waveforms. • See page 62 for IC Block Diagrams.
3.3
2.7
2.1
2.7
1.1
2.4
1.6
3.3
0
1.6
3.3
1.9
1.8
5
2
5
4.5
3.7
0
4.5
9.1
4.5
4.4
4.5
4.5
4.4
<9.1>
4.5
3.7
<9.1>
0
3.2
<0>
0<9.1>
<0>
3.2
0<9.1>
5
11.8
1.3
6.5
9.1
11.9
(DZ270)
(HDZ278)
HDZ278
DZ270
1
1
(DZ270)
(HDZ278)
HDZ278
HDZ278
(DZ270/HDZ278)
4.7
4.7
4.7
4.7
4.7
4.7
9.1
C460
C620
R600
R601
75½
6.3V
1000
C462
75
R439
75
R449
75
R452
L404
10uH
16V
100
C456
16V
100
C458
50V
10
C470
0.1
C463
0.1
C473
10V
470
C474
C488
1000p
0.5%
150
R445
0.5%
150
R448
0.5%
150
R447
50V
10
C476
R473
JL478
1
C457
1
C454
1
IC404
MM1758AFBE
50V
22
C466
0.5%
150
R446
25V
22
C559
16V
100
C541
47k
R491
47k
R552
RT1N241C-TP-1
Q413
4.7k
R551
4.7k
R559
25V
22
C499
50V
1
C518
220p
C491
47k
R539
R576
0
4.7k
R561
4.7k
R564
C548
1
220p
C525
RT1N241C-TP-1
Q412
Q412, 413
INVERTER
0.1
C542
10uH
L407
220p
C535
25V
22
C530
16V
100
C557
R599
47k
1k
R579
25V
22
C495
47k
R567
4.7k
R486
47k
R527
10k
R582
1k
R584
4.7k
R489
47k
R566
47k
R481
3.3k
R533
25V
22
C524
4.7k
R485
50V
1
C533
0.1
C556
RB501V-40TE-17
D407
47k
R528
25V
22
C536
R562
0
100k
R603
47k
R553
220p
C496
0.1
C552
220p
C521
220p
C537
47k
R540
4.7k
R479
0
R609
3.3k
R538
16V
47
C549
25V
22
C538
10k
R575
25V
22
C558
47k
R490
47k
R480
75
R468
6.3V
1000
C478
1000p
C467
JL530
JL532
JL533
JL460
JL456
JL454
JL452
JL451
JL449
JL466
JL468
JL470
JL488
JL490
JL497
JL499
JL493
JL492
JL495
JL498
JL516
JL506
JL514
JL510
JL502
JL512
JL500
JL508
JL528
JL526
JL524
JL543
JL544
JL545
JL547
JL550
JL548
JL549
JL551
0
R610
100k
R602
100k
100k
R598
47k
JL440
JL441
JL442
KIA7809API
IC413
JL504
1
2
3
4
5
5P
CN418
L-IN
A-GND
R-IN
A-GND
MUSIC L+R
1
2
3
4
5
6
7
8
9
9P
CN419
L-CH
+ B 9V
R-CH
GND
TUNED
CE
DI
CL
DO
1
C621
R620
1k
1
C622
0.1
JL467
R
V
L
G
J404
2200p
C468
D406
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
CN402
DMP_Lch
AGND
DMP_Rch
+6V
DMP_VIDEO
VGND
Y
VGND
C
VGND
CY/G
VGND
Cb/B
VGND
Cr/R
VGND
WIDE
0.5%
150
R444
JL450
1
C480
R595
0
0
R557
R558
0
C481
100p
CL501
CHASSIS
R541
0
R542
0
R471
0
JW574
0
R515
4
3
2
1
IC410
NJM4558M-TE2
0
R516
25V
C534
22
R544
47k
25V
C522
22
16V
C527
100
R537
4.7k
25V
C517
22
C526
0.1
R529
4.7k
R523 470
R526
47k
R548
470
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
17P
CN407
1
2
3
4
4P
CN412
F.Audio(L)/MIC1
9V
F.Audio(R)
A-GND
ASEL0
ASEL1
CK
TD
CE
DI
CK
DO
TD
VSEL1
VSEL0
VSEL2
DO
CE
DI
VSEL0
VSEL1
ASEL0
ASEL1
VSEL2
Y
R
L
IO-COMPONENT BOARD
IC404
VIDEO DRIVER
IC411
INPUT SELECT
+5V REG
IC620
IC413
+9V REG
PACK
FM
TUNER
AM
FM/AM
ANTENNA
TU401
COAXIAL
VIDEO OUT
R
L
AUDIO IN
15
2
12
6
11
C
14
G
3
B
E
F
4
7
A
9
1
10
5
D
8
13
BUFFER
IC410
A_SEL1
V_SEL2
ST_DI
ST_DO
A12V
ST_CLK
A_SEL2
V_SEL0
V_SEL3
V_SEL1
TV_SEL
TUNED
A_SEL5
A_SEL0
ST_CE
A_SEL4
A_SEL3
15P
17P
75
0
R473
TV/VIDEO
CN403
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299