Schematic Diagram - Smaster Section - Sony HCD-U1BT Service Manual

HCD-U1BT
Ver. 1.3
Q Q
6-14. SCHEMATIC DIAGRAM — SMASTER SECTION —
3 7 6 3 1 5 1 5 0
SMASTER BOARD
A+5V
AGND
R-IN
AGND
L-IN
D+3.3V
INIT
G
NSPMUTE
DGND
MAIN
SCLATCH
BOARD
SCSHIFT
(2/2)
SCDT
CN109
/SD
SUFFIX-12
Page 38 DGND
SUFFIX-13
/RST
SUPPLEMENT-1
SOFTMUTE
Page 5
PGMUTE
OVF
/OTW
CN700
19P
T E
L 1 3 9 4 2 2 9 6 5 1 3
C751 C701
2.2 2.2
50V 50V
C733
0.1
D701
1SS355WTE-17
R730 100
D702
1SS355WTE-17
C730 0.1 C732
C748 R729
10 50V
C738 10 50V
C749 0.1
R701 100
R751
C743
100 C742
0.01
0.01
L702
10µH
EP703
C831
0.1
(CHASSIS)
C832
0.01
R731
470
R733
470
w w w
HCD-U1BT
• See page 51 for Waveforms. • See page 54, 55 for IC Block Diagrams.
L701
10µH
C731
100
10V
C804 0.001
INIT
NSPMUTE
SCLATCH
SCSHIFT
R713
A 100
SCDT
/SD
B
R714
/RST
100
SOFTMUTE
PGMUTE
OVF
C740
/OTW
220
10V
R752
C 100
R754
D 100
R745
100
A/D CONVERTER
IC701
PCM1803DBR
R746
100
0.1
1k
C734 C741 C735
0.001 0.1 10
50V
+3.3V REGULATOR C739
0.01
IC702
NJM2871BF33-TE2
C736
0.01
VOUT
NOISE
GND
VIN
CONT
R722
47k
L703
10µH
C757
10
50V
CLOCK SHIFT
IC703
MC74VHC74DTR2
C744
0.1
C737
0.0047
C797
0.01
C798
10
50V
R780
22
x a o
. i
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C714 R707
560p 12
C706
0.1
DIGITAL POWER AMP
IC707
CXD9845M
GVDD GVDD
_B _A
R712 100 C713 0.047
BST
/OTW
_A
R711 100 PVDD
/SD
_A
OUT
PWM_A
_A
R706 100
/RST
GND
_AB
C715 560p
PWM_B GND
R708 12
OC_
OUT_B
R759
ADJ
15k
PVDD
GND
_B
C718 0.047
GND BST_B
C760
0.1 C763 0.047
VREG BST_C
PVDD
GND
_C
R756
M2 OUT_C
100 R755
100
M1 GND
R709 12
PWM_C GND
C716 560p
/RST
OUT_D
_CD
PWM
PVDD_D
_D
C768 0.047
VDD BST_D
GVDD GVDD
_C _D
R710
C717
560p 12
R757
3.3
C790
C758
100
0.1
16V
Q Q
3 7
R742 C745 C787
10k 0.01 0.001
OVF
R790
C747 100
100
10V
C746
0.01
R741
100
C806 0.1
R743
INIT 100
R744 0
R747 470
R748
47k
R749 0
+1.8V REGULATOR
IC704
NJM2871BF18-TE2
NOISE
VOUT
GND
CONT
VIN
R750
C761
47k
0.01
u 1 6 3
y
40 40
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2 4
8 9 9
L710
10µH
C720 R721
1 10k
C719
C707
1800 25V
47
25V
C702
C764 0.1 C728 R718
0.1 1 10k
R720
L711
3.3 10µH
C712
0.1
R719
Q702
3.3
2SA1235TP
C708 47 25V
Q702,703
C765 0.1
Q703
OVER LOAD DETECT
2SA1235TP
R765
0
Q701
2SC3052EF
C767 0.1 PROTECT DETECT
Q752
R792
2SA1235TP
0
C709
C710
C766
47
0.1 47 25V
25V Q752,753
R793 C794
47k 1
OVER LOAD DETECT
C769
L760
1800
10µH
25V
R770
C756
3.3
C770 R771
0.1
1 10k
C791
0.1
C762
R769
0.1
3.3
C777 R768
1 10k
L761
10µH
6 3 1 5 1 5 0 8 9
C788
0.1
C754
0.001
C752
0.1
C796
0.1
C704
0.001
A
B
C753
STREAM PROCESSOR
100
IC705 10V
C
CXD9788AR
D
L704
10µH
C786
0.001
L705
C783
1µH
10p
CLOCK BUFFER
IC709
MC74VHC1GU04DFT1
VCC
C784
C785
0.001 NC
C781
10p
10 C799 C779 C780
50V
0.01 0.01 0.001
m
GND
X702
R783 R782 49.152MHz
1M
22
R781
c o
100
.
2
8 9 9
C722
0.0022
R739 C723
CN702
0.0022 J
10k C844
2P
0.1
L+
R724
4.7
SP
BOARD
L-
R725 C845
4.7 0.1 NO702
R740 C724 SUFFIX-12
10k 0.0022
Page 46
C725
0.0022 SUFFIX-13
SUPPLEMENT-1
Page 9
R726 R727 R728
220k 100k 220k
C726
2.2
R776
220k
C778 R777
2.2 100k
R778
220k
Q753
2SA1235TP
C772
0.0022
R772 C773
0.0022
10k
CN703
R774 C846
2P
4.7 0.1 K
R+
R775
SP
4.7 R-
C847
BOARD
0.1
R773 C774
NO703
10k 0.0022
C775 SUFFIX-12
0.0022
Page 46
SUFFIX-13
SUPPLEMENT-1
2 4 9 8 2 9 9
CN704 Page 9
4P
+18V SW POWER
GND BOARD
L
+18V CN31
(Page 48)
GND
C711 CN705
220 2P
16V SW POWER
+12V BOARD
M
GND CN33
(Page 48)
EP702
(CHASSIS)
EP701
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