Schematic Diagram -Mic/Headphone Section - Sony HCD-GZR7D Service Manual

HCD-GZR7D/GZR8D/GZR9D
Q Q
3 7 6 3 1 5 1 5 0
7-21. SCHEMATIC DIAGRAM – MIC/HEADPHONE Section –
1 2
MIC BOARD
JR809 0
A
RV851
50k
MIC 1 LEVEL
R851 10k JR801
RV852
50k
MIC 2 LEVEL R852 10k
RV853
50k
ECHO LEVEL R853 1k
B
J851
MIC 1
C891
0.1
C
T E
L 1 3 9 4 2 2 9 6 5 1 3
J852
D MIC 2
JR804 0 JR803 0
C892
0.1
E
ET851
E
w w w
HCD-GZR7D/GZR8D/GZR9D
• See page 85 for IC Block Diagrams.
3 4
0 JR805 0
C857
C853
47
1
16V
50V
R854
C854 C855 C856
1k
1 4.7 47
R862
50V 35V 16V
100
C851
C867
0.01
0.1 2.5 2.6 5.1 2.5 2.6 0.1
15 14 13 12 11 10 9 8 7
R856
R855
10k
10k
IC851 TC9488FG
R858 R859
10k 10k
16 17 18 19 20 21 22 23 24
2.5 2.6 0 2.6 2.6
C852
C863
0.01
1200p
R871
R867
15k
1.5k
R870
C859 3.9k
C861
1
R860 4.7
50V
1k 35V
C864 C866
1 4700p
C860 C862
1 50V 4.7 35V
JR814 0
JR815 0
IC852
IC852
IC852
NJM4558V-TE2
NJM4558V-TE2
(2/3)
MIC SIGNAL AMP
(1/3)
4.5
5
4.5 4.5
3 + 7
4.5 4.5
+ 1 6
R880 4.5 2 - R885
C875
- R883 JR816 R884
10k C880 22k
22
47k 0 15k
0.1
16V
50V
R881 R882
C885
100k 10k
C879 390p
C878 C882
C881
1 0.1
220 10V
50V
x a o
y
. i
http://www.xiaoyu163.com
5 6
R864
100
R865
C858
4.7K R872
68p
330
C868
0.1
0.9 0.9 1.9 2 5.1
R873
330
6 5 4 3 2 1
C869
47 25V
C870
0.01
25 26 27 28 29 30
R894 R895
10k 27k
2.6 5.1 2.6
IC851
IC B/D
MIC/ECHO
LEVEL AMP
JR811
0
Q Q
3 7 6
R890 0
IC852
NJM4558V-TE2
R891 R892
(3/3) 10k 10k
R886 R888 R893
C886
0 2.2k 6.8k
4.7
8
9 C887
35V
47p
POWER
GND
0.001
C888
4
10
R887 C889 R889 16V
100k 0.1 2.2k
ET852
u 1 6 3
64 64
2 4
8 9 9
7 8
CN852
9P
O-MIC/HP-DET
1
MIC+9V
2
MIC-SIG
3
MAIN
4 MIC SCORE
BOARD
G
5 A-GND
(2/4)
D-GND CN101
6
(Page 60)
R-OUT
7
3 1 5 1 5 0 8 9
HP-GND
8
9 L-OUT
HEADPHONE BOARD
CN801
CN851
6P
6P
HP-DET
1 HP-DET 1
2 D-GND D-GND 2
3 HP-Rch HP-Rch 3
GND GND 4
4
HP-Lch HP-Lch
5 5
CASE GND CASE GND
6 6
C824
C822
1000p
0.1
m
c o
.
2
8 9 9
9 10
2 4 9 8 2 9 9
R824 R822
47 47
J803
R823 R821
47 47
PHONES
C823
1000p