HCD-DH50R/DH70SWR
HCD-DH50R/DH70SWR
39
39
5-13. SCHEMATIC DIAGRAM - MAIN Section (3/3) -
• See page 45 for Waveforms. • See page 48 for IC Block Diagrams.
3.3
3.3
3.3
1.3
1.7
1.7
3.3
1.6
3.3
1.7
2.8
1.3
4.3
2.5
2.5
3.3
3.3
3.3
3.3
1.6
13.7
3.3
12.1
13.7
0
0
13.7
3.3
0
12.1
0
3.4
0
3.4
3.3
3.3
3.3
1.6
1.6
3.3
0
12.1
0
3.4
0
3.4
3.3
3.3
3.3
1.6
0
0
1.7
1.7
1.3
3.3
1.8
1.6
1.5
1.2
1.6
3.3
1.6
3.3
1.7
1.6
3.3
3.3
3.3
1.8
5
3.3
3.3
0
0
0
0
0
0
1.8
0
0
13.7
13.7
13.7
13.7
27.8
13.7
0
12.1
12.1
25.2
27.8
27.8
13.9
13.9
13.9
13.9
27.8
27.8
25.2
12.1
12.1
12.1
12.1
25.2
27.8
27.8
13.9
13.9
13.9
13.9
27.8
27.8
25.2
12.1
12.1
0
3.3
0
0
3.3
0
3.3
1.5
2.5
5
3.3
1.6
1.6
13
14
15
16
17
18
19
20
21
22
23
24
37 38 39 40 41 42 43 44 45 46 47 48
PCM1808PWR
IC701
TK11133CSCL-G
IC702
5
4
TK11118CSCL-G
IC704
2
1
MC74VHC1GU04DFT1
IC709
2200p
C723
2200p
C722
2200p
C724
2200p
C725
4.7
R724
4.7
R725
0.1
C844
0.1
C845
1
C855
0.01
C856
10k
R739
10k
R721
10k
R718
10k
R740
1
C720
1
C728
10uH
L710
10uH
L711
4.7
R775
10k
R771
10k
R768
2200p
C775
4.7
R774
1
C770
2200p
C773
0.1
C847
10k
R772
L760
10uH
2200p
C772
10k
R773
L761
10uH
1
C777
0.1
C846
2200p
C774
220k
R726
220k
R728
100k
R727
2.2
C726
2.2
C778
220k
R778
100k
R777
220k
R776
ISA1235AC1TP-1EF
Q703
ISA1235AC1TP-1EF
Q752
OVER LOAD DETECT
Q752, 753
ISA1235AC1TP-1EF
Q702
OVER LOAD DETECT
Q702, 703
ISA1235AC1TP-1EF
Q753
10
R792
47k
R793
2SC3052EF-T1-LEF
PROTECT DETECT
Q701
1
1
3
2
C794
10
R765
10uH
L721
50V
10
C820
16V
1000
C711
0.1
C821
0.1
C741
10V
100
C753
1000p
C754
1000p
C704
100
R784
100
R785
100
R786
100
R787
100
R788
100
R789
100
R790
100
R741
10k
R742
100
R743
TP723
0
R744
470
R747
47k
R748
0
R749
CL700
50V
10
C795
10
R734
10
R735
10
R736
10
R737
1M
R782
10uH
L704
22
R783
0.01
C797
47k
R750
10V
100
C747
4700p
C737
50V
10
C793
10uH
L703
10V
100
C735
0.01
C736
47k
R722
0.47
C732
100
R745
100
R746
10uH
L702
22
R780
470
R733
470
R731
10V
220
C740
10uH
L701
10V
100
C731
100
R751
100
R701
0.47
C748
0.47
C749
50V
2.2
C701
50V
2.2
C751
35V
47
C738
CL704
CL705
CL706
CL707
0.001
C804
0.01
C801
10V
100
C798
CL708
CL709
CL710
CL711
CL712
CL713
CL714
CL715
CL716
CL717
CL718
1
C831
0.01
C832
0
R795
CXD9774M
IC708
CXD9774M
IC707
22k
R702
47p
C707
390
R754
47p
C757
470
R714
100
R706
100
R712
100
R756
100
R761
390
R704
0.1
C781
100
R708
0.1
C708
1
C706
1k
R716
1k
R738
1k
R717
1k
R715
1k
R801
1k
R800
100
R709
0.1
C709
100
R711
CL719
0.047
C718
L709
L759
P6SMB39AT3
D706
P6SMB39AT3
D705
P6SMB39AT3
D755
P6SMB39AT3
D756
0.22
C716
0.22
C717
0.22
C766
0.22
C767
3.3
R720
3.3
R770
L708
0.047
C713
0.22
C714
0.22
C715
3.3
R719
1
C712
0
R794
470
R764
0.1
C782
100
R758
100
R759
0.1
C758
0.1
C759
100
R762
1
C756
1
C762
0.047
C768
0.047
C763
L758
0.22
C764
0.22
C765
3.3
R769
35V
2200
C769
35V
2200
C719
0.1
C791
0.1
C702
0.01
C703
CL720
CL721
CL722
CL723
0
JR704
CL724
CL725
CL726
CL727
CL728
CL729
CL730
CL731
KIA7812API-U/PF
IC710
1
C802
1
C734
1
C730
1
C733
1
C803
1
C739
1
C761
1
C744
1
C815
1
C799
1
C780
1
C779
1
C746
1
C806
1
C745
1
C787
1
C788
1
C752
1
C796
1
C786
1
C813
A+5V
AGND
SP_R
SP_L
EVER+3.3V
INIT
NSPMUTE
DGND
SCLATCH
SCSHIFT
SCDT
/RST
SOFTMUTE
PGMUTE
/SD
1
2
CN702
2P
L+
L-
1
2
CN703
2P
R+
R-
UDZW-TE17-2.4B
D713
22k
R752
E
EP702
1
2
3
4
CN704
4P
P-GND
+27V
P-GND
+27V
49.152MHz
X703
470
R781
4p
C785
C784
6p
CL701
1k
R791
MAZ8160GMLS0
D757
E
EP703
330p
C743
330p
C742
14
13
12
11
10
9
8
7
6
5
4
3
2
1
MC74VHC74DTR2
IC703
CL702
CL703
NSPMUTE
SOFTMUTE
PGMUTE
SCDT
SCSHIFT
SCLA
TCH
INIT
NSPMUTE
SCLATCH
SCSHIFT
SCDT
/SD
/RST
SOFTMUTE
PGMUTE
INIT
/RST
/SD
IC701
A/D CONVERTER
IC702
+3.3V REGULATOR
(DH70SWR: AEP)
CLOCK SHIFT
IC703
+1.8V REGULATOR
IC704
IC709
CLOCK BUFFER
(CHASSIS)
(CHASSIS)
IC708
DIGITAL POWER AMP
DIGITAL POWER AMP
IC707
+12V REGULATOR
IC710
MAIN BOARD (3/3)
J
4
B
16
6
21
9
11
D
15
H
10
17
3
5
12
C
F
18
1
19
E
8
G
20
14
A
2
13
I
7