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CMRR
LIMITER
STEREO
75uS
50uS
MONO
MODULATION
Mod. ESVA-1C
1.0
Audio Output
C
1 1Friday, October 24, 2003
Title
Size Document Number Rev
Date: Sheet of
N COM
VC
VD
VA
VB
+15V
+15V -15V
VA
VC
VB
VD
-15V
+15V
-15V
R38
100
R19
3K9
R18
1K2
J14
DJ3
+
C30
100MF / 16V
R30
560K
+
C37
2.2MF / 50V
R179
20K
R40
1K2
D6
3V3
+
-
U2B
LM358
5
6
7
R32
100K
R48
10K
R39
10K
R37
4K7
+
C43
100MF / 25V
+
C41
100MF / 25V
R51
4K7
R5
27K
R47
4K7
R52
10K
R41
1K2
+
-
U3A
LF353
3
2
1
84
R26
100K
R25
220K
C45
47pF
R7
12K
R12
1K
R24
33
+
C34
10MF / 35V
R27
1K
R22
1K
R44
10K
R8
47K
C40
4.7nF
J15
DJ3
C42
6.8nF
R20
1K
C26
60pF
+
C31
1000MF / 35V
D4
BAT43
R15
1K2
R17
3K9
FILT1
FILTER 19KHz
1
2
3
4
5
6
7
8
D3
BAT43
R46
3K9
R9
5K
R36
10K
R45
3K9
+
-
U3B
LF353
5
6
7
D5
LL4148
R42
10K
C44
47pF
R49
2K2
R6
47K
R35
560K
R16
200
R50
10K
+
-
U1B
OP275
5
6
7
84
+
-
U1A
OP275
3
2
1
R21
12K
R10
27K
C27
10pF
R43
10K
C29
470pF
R23
12K
R28
4K7
R14
12K
R29
10K
+
C35
470MF / 35V
C32
470pF
C33
470pF
D8
LL4148
D7
LL4148
R34
NC
+
C36
470MF / 35V
R13
10K
R31
100K
+
C38
10MF / 35V
+
-
U2A
LM358
3
2
1
84
C39
10pF
R11
47K
C28
22pF
R33
33
BF OUT
VC
VB
GND
VA
VD
GND BF OUT
VU METER
MONO +
GND MONO
MONO -
SCA 1
GND SCA 1
SCA 2
SCA 3
MPX
GND SCA 2
GND SCA 3
GND MPX
+15V
-15V