HCD-GZR7D/GZR8D/GZR9D
HCD-GZR7D/GZR8D/GZR9D
64
64
2.5
2.6
5.1
2.5
2.6
0.1
0.9
0.9
1.9
2
5.1
2.5
2.6
0
2.6
2.6
2.6
5.1
2.6
4.5
4.5
B
1
E
4
A
3
7
C
2
9
6
8
10
5
D
J852
0.1
C891
J851
C892
0.1
10k
R894
10k
R891
1
2
3
4
5
6
6P
CN851
HP-DET
D-GND
HP-Rch
GND
HP-Lch
CASE GND
6.8k
R893
1
2
3
4
5
6
7
8
9
9P
CN852
O-MIC/HP-DET
MIC+9V
MIC-SIG
MIC SCORE
A-GND
D-GND
R-OUT
HP-GND
L-OUT
NJM4558V-TE2
IC852
(1/3)
NJM4558V-TE2
IC852
(2/3)
NJM4558V-TE2
IC852
4
R861
1.5k
R862
100
R863
100
R865
4.7k
C858
68p
R853
1k
R852
5.6k
5.6k
R851
16V
C857
47
16V
C856
47
50V
C853
1
35V
C855
4.7
50V
C854
1
R854
1k
R855
10k
R856
10k
C851
0.01
0.01
C852
10k
R858
R859
10k
50V
C859
1
50V
C860
1
R867
1.5k
C867
0.1
R860
1k
R868
12k
35V
C862
4.7
C863
1200p
R869
6.8k
R870
3.9k
C864
1
C866
4700p
R871
15k
C868
0.1
R872
330
R873
330
C870
0.01
D851
UDZSNPTE-175.1B
25V
C869
47
JR809
0
10k
100k
R881
50V
1
C878
10k
R880
10V
220
C881
0.1
C882
100k
R887
JR814
0
0
JR815
JR811
0
16V
10
C888
47p
C887
2.2k
R889
R890
0
0.1
C889
35V
C861
4.7
10k
R892
27k
R895
16V
22
C875
50k
RV851
RV852
50k
RV853
50k
E
ET851
E
ET852
R864
100
J803
1000p
C823
C822
0.1
47
R823
1000p
C824
1
2
3
4
5
6
6P
CN801
HP-DET
D-GND
HP-Rch
GND
HP-Lch
CASE GND
47
R824
47
R821
47
R822
0
JR801
0
JR805
0
JR803
0
JR804
MIC BOARD
IC851
MIC/ECHO
IC852
MIC SIGNAL AMP
HEADPHONE BOARD
MIC 1 LEVEL
MIC 2 LEVEL
ECHO LEVEL
MIC 1
MIC 2
PHONES
LEVEL AMP
7-21. SCHEMATIC DIAGRAM – MIC/HEADPHONE Section –
• See page 85 for IC Block Diagrams.