HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675
HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675
42
42
6-14. SCHEMATIC DIAGRAM - MAIN Board (7/12) -
• See page 64 for Waveforms. • See page 65 for IC Block Diagrams.
0
1.5
3.3
0
0
1.7
1.6
0
1.5
1.6
3.3
3.3
0
1.6
1.6
0.1
1.7
3.3
0
0
0
3.3
0
3.3
3.3
3.3
3.3
0
3.3
3.3
1.6
0
0
2.5
2.5
3.3
1.2
1.6
2.5
4.9
3.3
1.7
1.6
R652
100
R655
100
R656
100
R657
100
R654
100
TP651
TP652
TP653
TP658
TP655
TP656
TP657
S-AIR
TP707
TP706
TP705
TP704
TP703
TP702
TP711
TP710
TP709
A5V
A-GND
OPT-IN
COAX-IN
100
R724
100
R723
R722
100
0
R721
0
R748
0
R747
0
R746
100
R729
100
R730
0
R744
0.1
C722
TP729
1M
R733
12.288 MHz
X701
100
R736
ICT527
ICT526
ICT528
ICT529
100
R738
100
R743
0
R740
0
R741
0.1
C727
100
R735
100
R734
100
R726
100
R719
4.7k
R714
5.6k
R715
100
R718
100
R717
0.1
C723
0.01
C721
ICT523
ICT524
10V
220
C720
0.01
C716
0.1
C719
0.1
C71
1
0.01
C712
33k
R713
100
R716
ICT533
ICT532
10V
220
C709
ICT520
D-GND
D3.3V
SPBCK
MDIR_XSTATE
SPLRCK
ASD0
ASD1
ASD2
ASD3
BCKO
LRCKO
MCKO
R778
0
47
R780
47
R781
ICL522
ICT588
ICT587
ICT581
ICT589
ICT582
ICT555
ICT556
ICT557
ICT558
ICT559
ICT560
ICT561
TP654
TP660
ICT568
ICT569
ICT570
ICT571
ICT572
ICT573
0
R790
R791
0
470p
C772
470p
C773
50V
10
C706
50V
10
C717
50V
10
C705
0.1
C707
0.1
C708
0.1
C718
1
2
3
4
5
5P
CN702
MUSIC L+R
A-GND
R-IN
A-GND
L-IN
C3073
0.1
8
7
6
5
4
3
2
1
TC7WH157FK(TE85R)
IC3003
R3079
100
M_ST
0.1
C3072
R3097
100
R3077
100
R3078
100
C710
0.01
14
13
12
11
10
9
8
7
6
5
4
3
2
1
10p
C724
10p
C725
330
R732
MC2837
D701
R663
100
R664
100
R662
100
TP661
TP662
TP663
TP664
TP665
R651
100
100
R683
R793
0
100
R787
R788
0
100
R690
R666
100
R667
100
TP659
R794
0
1
2
3
4
5
6
7
8
9
10
11
12
13 14 15 16 17 18 19 20 21 22 23 24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
AMP_D2
AMP_D3
AMP_BCKO
AMP_LRCKO
AMP_MCKO
SPMCKO
AMP_D1
TP700
10uH
L702
10uH
L703
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
17P
CN651
HDX275/
HDX475/
HDX675
I2C_SCL
ADC_SEL
SRC_MUTE
SD1(DMIX/XM)
BCK2(SL/SR)
LRCK1(DMIX/XM)
SD2(SL/SR)
GND
S-AIR_DET
GPIO2
LRCK2(SL/SR)
BCK1(DMIX/XM)
IFMT0
RESET(S-AIR)
I2C_SDA
GND
A5V_SW
TP667
R661
0
R621
100
P_CONT3
R660
0
10uH
L701
TP708
S-AIR_ADC_SEL
I2C_CLK_S-AIR
GPIO2
S-AIR_RST
I2C_SDA_S-AIR
S-AIR_DET
100
R750
MDIR_AUDIO
MDIR_CSFLAG
MDIR_DO
MDIR_DI
0
R769
0
R763
0
R768
0
R767
MDIR_CE
0
R766
MDIR_CK
0
R765
XSYSRST
0
R749
0
R745
SPDATA
0
R764
R720
10k
10k
R710
R797
0
R737
10k
10k
R742
AUDIO SELECTOR
IC3003
MAIN BOARD (7/12)
A/D CONVERTER
IC707
I
8
D
B
E
2
11
7
H
13
G
14
9
12
K
5
C
4
3
6
1
F
J
A
15
10
HDX277WC/
HDX279W/
HDX576WF
0
R785
0
R783
0
R784
0
R782
0
R709
ADIN
ALRCK
ABCK
ACLK
0
R796
R691
0
0
0
0
0
0
0
R692
R693
R697
R694
R695
R696
47
R725
47
R727
1k
R731
0
R728
E
EB702
(CHASSIS)