Schematic Diagram -Mic Section - Sony HCD-GZR88D Service Manual

HCD-GZR88D/GZR99D
6-19. SCHEMATIC DIAGRAM – MIC Section –
1 2
MIC BOARD
A
J700
MIC 1
R1613
0
B
C700
0.1
E
C
RV700
ET700
(CHASSIS)
MIC 1
LEVEL
J701
MIC 2
R1615
0
D
RV701
50k
MIC 2
LEVEL
E
F
ET701
(CHASSIS)
CN700
4P
VBUS
CN700
D–
D+
G
GND
(USB)
HCD-GZR88D/GZR99D
• See page 71 for IC Block Diagrams.
3 4
C822
C1602
10
680p
50V
C704
R738 C744 R700
0.22
R706
R1612 R702 C702
C706
100k 1000p 1k
50V
1k
0 10k 0.01
220p
C708 R708
47p 68k
4 3 2 1
IC700
IC700
NJM4558V-TE2
MIC AMP
5 6 7 8
C712
R1604 R1606
10k 0
C823
50k
C1603
10
680p
50V
C705
R739 C745 R701
0.22
R707
R703 C703
C707
100k 1000p 1k
50V
1k
10k 0.01
220p
R1614
C709 R709
0
47p 68k
R704
100k
4 3 2 1
R705
IC701
100k
IC701
R1607 NJM4558V-TE2
R1605
0 MIC AMP
10k
C713
5 6 7 8
0.1
C716 R710
220p 150k
C747
R711
R717 C748
100p
15k
100k 680p
R716
1k
C824
10 50V
D706
MC2840-T112-1
R736 0
R737 0
C732
220
10V
C735
0.1
5 6
ET702
(CHASSIS)
C710
0.22
50V
R723
15k
R722
4.7k
C725
10
C714
50V
10
50V
0.1
8 7 6 5 4
IC B/D
R712
C719 2.2k
IC720
0.1
IC720
R713
BU9253FS-E2
2.2k
MIC ECHO AMP
9 10 11
C711
0.22
50V
C728
4700p
R728
8.2k
R729
22k
R731
C729
22k
0.01
R1609
C717
0
2.2
50V
50 50
7 8 9
C701
0.1
C726
0.01
C727
0.47
R721
10k
C722
22
35V
C723
0.033
3 2 1
C720
C721
100
0.1
10V
R1600
220k
12 13 14 15 16
C1600
R725
2.2
R1602
39k
50V
4.7k
R724
C731
22k
0.033
R726
R727
330
330
R1601
R730 220k
10k
C730
100p
R714
10k
R715
RV720
5.6k
50k
ECHO
R720
LEVEL
2.2k
10
R1611
470
C1601
2.2
50V
Q815
2SC3052EF-T1-LEF
BUFFER
R1603
150
CN704
5P
CL880
1 A-GND
CL881 R1608
MAIN
2 MIC_SCORE
CL882
0 H BOARD
3 MIC_SIGNAL
(2/3)
CL883
4 A+9V CN101
CL884
(Page 47)
5 MIC_DET
CN706
4P
CL885
4 VBUS
DMB19
CL886
3 D- BOARD
E
CL887
(1/4)
2 D+
CL888 CN1105
1 GND
(Page 41)