Schematic Diagram -Mic/Headphone Section - Sony HCD-GZR9D Service Manual

HCD-GZR7D/GZR8D/GZR9D
Ver. 1.1
7-21. SCHEMATIC DIAGRAM – MIC/HEADPHONE Section –
1 2
MIC BOARD
JR809 0
A
RV851
50k
MIC 1 LEVEL R851 5.6k
RV852
50k
MIC 2 LEVEL R852 5.6k
RV853
50k
ECHO LEVEL R853 1k
B
J851
MIC 1
C891
0.1
C
J852
MIC 2
D
JR804 0 JR803 0
C892
0.1
E
ET851
E
HCD-GZR7D/GZR8D/GZR9D
• See page 85 for IC Block Diagrams.
3 4
JR801 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
R856
R855
10k
10k
IC851 TC9488FG
R858 R859
10k 10k
16 17 18 19 20 21 22 23
2.5 2.6 0 2.6 2.6
C852
C863
0.01
1200p
R867
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 +
3 7
4.5 4.5
+ 1 6
4.5
R880 2 - R885
C875
- R883 JR816 R884
10k C880
22
47k 0 15k
0.1
16V
50V
R881 R882
C885
100k 10k
C879 390p
C878 C882
C881
1 0.1
220 10V
50V
5 6
R864
100
R865 C858
R872
4.7k
68p
330
C868
0.1
0.9 0.9 1.9 2 5.1
R873
330
7 6 5 4 3 2 1
C869
47 25V
C870
0.01
24 25 26 27 28 29 30
R894 R895
10k 27k
2.6 5.1 2.6
IC851 IC B/D
R871
15k
MIC/ECHO
LEVEL AMP
JR811
0
R890 0
IC852
NJM4558V-TE2 R891 R892
(3/3) 10k 10k
4.5
R886 R888 R893
C886
22k 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
64 64
7 8 9
CN852
9P
O-MIC/HP-DET
1
MIC+9V
2
3 MIC-SIG
MAIN
MIC SCORE
4
BOARD
G
A-GND
5
(2/4)
6 D-GND CN101
(Page 60)
R-OUT
7
HP-GND
8
9 L-OUT
HEADPHONE BOARD
CN801
CN851
6P
6P
1 HP-DET HP-DET 1
D-GND D-GND 2
2
HP-Rch HP-Rch
3 3
4 GND GND 4
HP-Lch HP-Lch 5
5
CASE GND CASE GND
6 6
C824 C823
C822
0.1 1000p 1000p
10
R824 R822
47 47
J803
R823 R821
47 47
PHONES