Schematic Diagram - Amp Section - Sony CMT-HX3 Service Manual

2-6-12. SCHEMATIC DIAGRAM – AMP Section –
CN700
19P
A+5V
AGND
R-IN
AGND
L-IN
D+3.3V
INIT
NSPMUTE
DGND
SCLATCH
SCSHIFT
SCDT
(Page
/SD
34)
DGND
/RST
SOFTMUTE
PGMUTE
OVF
/OTW
C732
C738
10
50V
C831
1
(CHASSIS)
EP703
C832
0.01
HCD-HX3/HX5/HX7
• See page 39 for Waveforms. • See page 46 for IC Block Diagrams.
C731
L701
0 100
10V
C804 0.001
INIT
NSPMUTE
SCLATCH
SCSHIFT
SCDT
/SD
/RST
SOFTMUTE
PGMUTE
OVF
/OTW
C751
2.2
50V
R751
R745
100
100
A/D CONVERTER
IC701
PCM1808
R746
100
C733
0.1
0.1
C730
0.1
C735
10
50V
L702
0
+3.3V REGULATOR C739
0.01
IC702
TK11133CSCL
C736
0.01
VOUT
NOISE
GND
VIN
CONT
C801 R722
0.01 47k
L703
0
R731
470
C757
10
R733
50V
470
CLOCK SHIFT
IC703
MC74VHC74DTR2
C744
0.1
C737
0.0047
R780
22
DIGITAL POWER AMP
IC707
CXD9845AM
GVDD GVDD
_B _A
R712 100
BST
/OTW
_A
R711 100
PVDD
/SD
_A
A R713 100
OUT
PWM_A
_A
R706 100
/RST
GND
_AB
R714 100
B
PWM_B GND
R759 OC_
OUT_B
15k ADJ
PVDD
GND
_B
C760
GND BST_B
0.1
VREG BST_C
C740
220 PVDD
GND
10V _C
R756 R755
M2 OUT_C
100 100
M1 GND
C R752
100
PWM_C GND
/RST
OUT_D
_CD
100
D R754
PWM
PVDD_D
_D
C790 100 16V
VDD BST_D
C758 0.1
GVDD GVDD
_C _D
R757
3.3
R808 R807
22 22k
Q707
KTC3198
+12V C741
REGULATOR 2.2 R809
22k
50V
R742 C745
10k 0.01
OVF
C747
100
10V
C746
0.01
R741
100
R743
100
INIT C806 0.1
R744 0
R747 470
R748
47k
R749 0
+1.8V REGULATOR
IC704
TK11118CSCL
C797
0.01
NOISE
VOUT
GND
CONT
VIN
C798
R750 C761
10
47k 0.01
50V
37 37
C714 R707 C719
C707
560p 12 1800 35V
47
35V
C702
C706 C764 0.1
0.1 0.1
R720
3.3
C712 R719
0.1 3.3
C713 0.047
Q702
2SA1235
C708 47 35V
C715 560p C765 0.1
R708 12
R765
C718 0.047
0
C763 0.047
Q701
C767 0.1
2SC3052
PROTECT DETECT
R792
0
R709 12 C709
C766 C710
47
0.1 47 35V
C716 560p 35V
R793 C794
47k 1
C768 0.047
L760
10µH
C769
C756
R770
0.1 1800
3.3
35V
C717 R710
C762
560p 12
0.1
C791
0.1
R769
3.3
R804 R802
220 220
C729
1000
R805 R803
16V
220 220
L761
10µH
C788
0.1
C787
0.001
R790
100
C754
0.001
C752
0.1
C796
0.1
C704
0.001
C753
STREAM PROCESSOR
100
IC705 10V
CXD9788AR
L704
0
L705
C783
1µH
10p
CLOCK BUFFER
IC709
MC74VHC1GU04
VCC
C785 C784
C781 10p 0.001 NC
10 C799 C779 C780
50V 0.01 0.01 0.001
GND
R783 R782 X702
22 1M 49.152MHz
R781
100
HCD-HX3/HX5/HX7
L710 C722
10µH 0.0022
CN702
C720 R721 R739 C723 2P
P
1 10k 10k 0.0022 C844
0.1
L+
R724
4.7
L-
R725 C845
4.7 0.1
(Page 38)
C728 R718 R740 C724
1 10k 10k 0.0022
L711
C725
10µH
0.0022
R726 R727 R728
Q702,703
220k 100k 220k
OVER LOAD DETECT
C726
2.2
Q703
2SA1235
Q752,753
OVER LOAD DETECT
C778 R776
2.2 220k
R777
100k
Q752 R778
2SA1235 220k
Q753
2SA1235
C772
0.0022
C770 R771 R772 C773
1 10k 10k 0.0022 CN703
2P
R774 C846
Q
4.7 0.1
R+
R-
R775
4.7
C847
C777 R768 C774 0.1
1 10k R773 0.0022
10k
(Page 38)
C775
0.0022
CN704
4P
+27V
GND
R
+27V
GND
(Page 45)
C855
1
EP702
C856
0.01
C851
1
C854
0.01 (CHASSIS)
EP701
A
B
C
D
C786
0.001