Schematic Diagram - Amp Section (Hx5) - Sony CMT-HX3 Service Manual

6-21. SCHEMATIC DIAGRAM – AMP Section (HX5) –
R743
100
C806 0.1
R744 0
LRCK R745 100
BCK R746 100
DOUT R747 470
C745 0.01
R748
47k
R749 0
C740 C746 0.01
220
10V C747 100 10V
IC704
NJM2871BF18
C797
0.01
VOUT
NOISE
GND
CONT
VIN
R750
47k
C798
C761
10
0.01
50V
CN700
19P
A+5V
AGND
R-IN
R-IN
AGND
L-IN
L-IN
D+3.3V
INIT
INIT
NSPMUTE
NSPMUTE
DGND
SCLATCH
SCLATCH
SCSHIFT
SCSHIFT
SCDT
SCDT
/SD
/SD
(Page
DGND
/RST
34)
/RST
SOFTMUTE
SOFTMUTE
PGMUTE
PGMUTE
OVF
OVF
/OTW
/OTW
HCD-HX3/HX5/HX7
• See page 41 for Waveforms. • See page 46 for IC Block Diagrams.
R790
100
R741
100
FLAGL
VSSL
OVF
R742
SFLAG OUTL1
10k
INIT VDDL
MCKSEL OUTL2
LRCK STREAM PROCESSOR VSSL
IC705
BCK VSSR
CXD9788AR
DATA OUTR1
BFVDD VDDR
BFVSS OUTR2
TEST VSSR
DVDD VSUBC
XFSIIN
XVSS
+1.8V REGULATOR
C795
10
50V
R733 C799 C779 C780
470 0.01 0.01 0.001
L703
10µH
C804
0.001
L701
10µH
A/D CONVERTER
C731
100
IC701
10V
PCM1803DBR
LRCK BCL
LRCK C738
R723 C733
10 50V FSYNC DOUT
1k 0.1
R730
BYPAS DGND
100
PDWN VDD
D701 C730
AGND SCKI
MMDL914T1 0.1
C732 0.1
VCC TEST
R729 1k
VREF2 FMT0
C701
C748 C749 0.1
2.2 R701
10 VREF1 FMT1
50V 100
R-IN 50V C742 0.01
RIN MODE0
L-IN C743 0.01
MODE1
LIN
C751 D751 R751
2.2 MMDL914T1 100
50V
R800 R704
1k 470
R801
1k
R706
C781
0.1
R708
100
R709
100
R711
C709
0.1
R712
R714 R713
390 22k
C796
0.1
C704
0.001
R734 10
R794 0
R735 10
C752
0.1
C754
0.001
R736 10
R754 R752
390 22k
R737 10
IC709
C786 L704
MC74VHC1GU04 R756
0.001 10µH C782
0.1
VCC
C785
C753 10p NC
100 R758
10V 100
GND
R759
100
R795
0
X702 R781
L705
49.152MHz 100
1µH R761
R783
CLOCK BUFFER
22
C759
0.1
R762
R782 C783 C784
1M 10p 0.001
R780
22
R764
470
IC702
NJM2871BF33
R722
47k
C739
CONT
0.01
VIN
GND
VOUT
NOISE
+3.3V REGULATOR
C736 L702
0.01 10µH
C793
C734 10
0.001 50V
C741
BCK
0.1
CLOCK SHIFT
DOUT
C735 C744
IC703
10 0.1
MC74VHC74DTR2
50V
R731
VCC
470 RD1
C737
RD2 D1
0.0047
D2 CK1
CK2 SD1
SD2 Q1
Q2 Q1
Q2 GND
39 39
D713 R716 R715
UDZW-TE17-2.4B 1k 1k
DIGITAL POWER AMP
IC707
R717
CXD9774M
1k
R738
RGND
GREG 1k
BP
PVDD
BM
PVSS C719
/RST C718 C706 2200
BST_B 0.047 1 L709 35V
100
RGND
PVDD_B
GREG C702
PVDD_B
C708 M3 C716 C717 R720
0.1 OUT_B 0.22 0.22 3.3
DREG
OUT_B
D705 P6SMB39AT3
DVSS
PVSS
M1
PVSS
D706 P6SMB39AT3
M2
OUT_A
DVDD C714 C715 R719 Q702
OUT_A 0.22 0.22 3.3 2SA1235
100
/SD
PVDD_A
RESV
PVDD_A
100
/OTW C713 C712 L708
BST_A 0.047 1
AM
PVSS
AP
PVDD
C710 RGND
47p GREG
C703
0.01
R792 Q752
0 2SA1235
R765
0
R793 C794
47k 1
Q701
DIGITAL POWER AMP 2SC3052
IC708 PROTECT DETECT
CXD9774M
C757
RGND
47p GREG
Q753
BP
2SA1235
PVDD
BM
PVSS C769
/RST C768 C756 2200
BST_B 0.047 1 L759 35V
100
RGND
PVDD_B
GREG C791
PVDD_B
M3 C766 C767 R770
C758
OUT_B 0.22 0.22 3.3
0.1
DREG
OUT_B
D755 P6SMB39AT3
DVSS
PVSS
M1
PVSS
D756 P6SMB39AT3
M2
OUT_A
DVDD C764 C765 R769
OUT_A 0.22 0.22 3.3
100
/SD
PVDD_A
RESV
PVDD_A
100
/OTW C763 C762 L758
BST_A 0.047 1
AM
PVSS
AP
PVDD
RGND
GREG
C711
220
16V
HCD-HX3/HX5/HX7
EP701
EP702
(CHASSIS)
C722
0.0022
L710 R721
0.1 10µH 10k C723 CN702
P2
0.0022 C844 2P
0.1
L+
C720 R739 R724
1 10k 4.7
L-
C728 R740 R725 C845
1 10k 4.7 0.1
(Page 40)
C724
L711 R718 0.0022
10k
10µH
R728 C725
220k 0.0022
R727
100k
C726 R726
2.2 220k
Q703 Q702,703
2SA1235
OVER LOAD DETECT
C778 R776
2.2 220k
R777
100k
R778
220k
Q752,753
OVER LOAD DETECT
C772
0.1 0.0022
L760 R771
10µH 10k C773 C846 CN703
Q2
0.0022 0.1 2P
R+
C770 R772 R774
1 10k 4.7
R-
C777 R773 R775 C847
1 10k 4.7 0.1
(Page 40)
C774
L761 R768 0.0022
10µH 10k
C775
0.0022
CN704
4P
R2
+27V
GND
+27V
GND
(Page 45)
CN705
2P
S2
GND
+12V
C832
0.1 (Page 45)
C831
0.01 EP703
(CHASSIS)