HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
35
35
6-19. SCHEMATIC DIAGRAM - AMP Board (HX50BTR/HX80R/HX90BTR) -
• See page 28 for Waveforms. • See page 44 for IC Block Diagrams.
R792
R749
R747
R773
R706
R708
R709
R711
R712
C713
C716
C706
CN702
CN703
C844
C845
C722
C723
R724
R725
C724
C725
R726
R728
R727
C726
Q702
Q703
R739
R740
R721
R718
C846
C847
C772
C773
R774
R775
C774
C775
R772
R771
R768
R776
R778
R777
C778
Q752
Q753
C794
R793
C769
C791
R765
C719
C702
R770
R719
C712
C707
R707
C714
C764
R720
R769
C756
C768
C763
C766
C767
C709
C718
C765
C708
C715
R710
C717
IC707
C762
C760
R755
R757
C758
C790
R756
R713
R752
R754
CN704
R78
4
R78
5
R786
R78
7
R788
R789
C787
R790
C788
L704
R783
C785
R782
L705
C784
R781
X702
C780
C779
C799
C781
C806
R744
R748
R741
C745
C746
R742
C747
C797
C761
C798
C754
C752
C796
C704
C753
IC709
R780
C737
R722
C736
R745
R746
R733
IC703
C744
C757
C735
IC701
C733
C732
R751
R731
C831
C832
C740
C804
C731
C742
C738
R701
C701
C751
CN700
R714
C739
R743
C720
C728
L710
L711
L760
L761
Q701
C777
C770
EP701
EP702
C710
C786
R750
IC704
IC702
EP703
L703
R759
C730
0
0
470
10k
100
12
12
100
100
0.047
560p
0.1
2P
2P
0.1
0.1
0.0022
0.0022
4.7
4.7
0.0022
0.0022
220k
220k
100k
2.2
2SA1235
2SA1235
10k
10k
10k
10k
0.1
0.1
0.0022
0.0022
4.7
4.7
0.0022
0.0022
10k
10k
10k
220k
220k
100k
2.2
2SA1235
2SA1235
1
47k
1800
35V
C729
1000
16V
0.1
0
1800
35V
0.1
3.3
3.3
0.1
47
35V
12
560p
0.1
3.3
3.3
0.1
0.047
0.047
0.1
0.1
47
35V
0.047
0.1
47 35V
560p
12
R804
220
R802
220
R805
220
R803
220
R807
22k
R808
22
C741
2.2
R809
22k
50V
560p
CXD9845AM
0.1
0.1
100
3.3
0.1
100
16V
100
100
100
100
4P
100
100
100
100
100
100
0.001
100
0.1
22
10p
1M
10p
0.001
100
49.152MHz
0.001
0.01
0.01
10
50V
0.1
0
47k
100
0.01
0.01
10k
100
10V
0.01
0.01
10
50V
0.001
C855
1
C856
0.01
C851
1
C854
0.01
0.1
0.1
0.001
100
10V
MC74VHC1GU04
22
0.0047
47k
C801
0.01
0.01
100
100
470
MC74VHC74DTR2
0.1
10
50V
10
50V
PCM1808
0.1
0.1
100
L702
0
470
1
0.01
220
10V
0.001
100
10V
2200p
C743
2200p
10
50V
100
2.2
5
0
V
2.2
50V
19P
100
L701
0
0.01
100
1
1
2SC3052
1
1
47 35V
0.001
47k
TK11118CSCL
TK11133CSCL
15k
0.1
NSPMUTE
SOFTMUTE
PGMUTE
SCD
T
SCSHIFT
SCLA
TC
H
/OT
W
/SD
/RS
T
A
B
C
C
D
D
INIT
OVF
INIT
NSPMUTE
SCLATCH
SCSHIFT
SCDT
/SD
/RST
SOFTMUTE
PGMUTE
OVF
/OTW
A
B
GND
GND
AGND
SCDT
DGND
DGND
NSPMUTE
SOFTMUTE
PGMUTE
/OTW
SCSHIFT
SCLATCH
AGND
L-IN
R-IN
/RST
OVF
/SD
L+
L-
INIT
R-
R+
A+5V
D+3.3V
(CHASSIS)
(CHASSIS)
Q702,703
OVER LOAD DETECT
OVER LOAD DETECT
Q752,753
PROTECT DETECT
+27V
+27V
DIGITAL POWER AMP
CLOCK BUFFER
+1.8V REGULATOR
A/D CONVERTER
+3.3V REGULATOR
CLOCK SHIFT
10
μ
H
10
μ
H
10
μ
H
10
μ
H
0
1
μ
H
0
Q707
KTC3198
+12V
REGULATOR