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121110987654321
TO L OUT
47P
L
D
47P
EFFIN
4K7
C
B
10K
+
4558
R?
47U
C10K
4K7
REPEAT
B10K
47K
6K8
AR?
+
47U
EFF SEND
OPAMP
B10K
6K8
47U
18K10K
561
100P
100P
1 8
470R
470R
47P
12K
4558
6K8
22K
56K
104
30R
104
10U
30R
683
5V
2M
24C02
2 7
3 6
4 5
1
a
2
b
3
c
4
d
5
e
6
f
7
g
561
683
ES65831
1 24
2 23
3 22
4 21
5 20
6 19
7 18
8 17
9 16
10 15
11 14
12 13
89C2051
120
219
318
417
516
615
714
813
912
1011
OU
DOWN
DPY
a
470R
bf
470R
g
470R
c
e
470R
d
470R
[LEDgn]
470R
470R
47P
3K3
3K3
47UF/25V
4K7
10U
10K
272
15K
10K
18K
10K
10K
10K
10K
10K
10K
5V
10U
47UF/25V
JRC4558
22K
GND
KA2284
6K8
123456789
8V
LED LED LED LEDLED
-20db
12V
105
+
47P
10K
+
4558
47U
10K
10K
10K
1
DPY
a
a
2
b
3
c
bf
g
4
d
5
e
c
e
d
6
f
7
[LEDgn]
g
1U
B20K
3K3
10U
10K
10K
R
10K
63HZ 150HZ
1K
683
JRC4558
100K
GND
KA2284
56K
123456789
8V
LED LED LED LEDLED
-20db
L
1K
334
273
B20K
JRC4558
100K
GND
400HZ 1KHZ 2.5KHZ 6.4KHZ 15KHZ
1K
124
123
B20K
100K
GND
4K7
100K
B10K
1K
1K
473
JRC4558
2K7
100P
472
B20K
100K
GND
PHONE
47UF/25V
4558
1K
183
JRC4558
182
B20K
100K
GND
1K
822
JRC4558
B20K
1K
821
GND
332
JRC4558
100K
271
B20K
JRC4558
100K
GND
D
C
B
A
1 2 3 4 5 6 7 8 9 10 11 12
Title
Number RevisionSize
A1
Date: 16-Mar-2015 Sheet of
File: E:\99SE\
.Ddb Drawn By:
A