COARSE
FINE
MUTE
Mod. MAIN.RX
1.0
MUTING
B
11
14
Tuesday, January 12, 2021
Title
Size
Document Number
Rev
Date:
Sheet
of
D17
5V1
+
C234
1MF / 50V
+
-
U18B
LM358
5
6
7
8
4
R258
4K7
+
-
U18A
LM358
3
2
1
R250
27K
R261
2K2
R255
6K8
+
C226
10MF / 35V
R61
47K
R262
220K
C228
100nF
R249
27K
D19
LL4148
D14
LL4148
+
C235
10MF / 35V
R260
10K
D18
LL4148
R256
12K
+
C227
10MF / 35V
+
C231
2.2MF / 50V
D16
LL4148
C229
100nF
C236
100nF
R252
12K
R62
1K2
D15
12V
R253
180
R254
180
R257
10K
C232
100nF
C230
1nF
Q15
BC817-25L
Q14
BC807-25L
Q12
BC817-25L
R251
27K
Q13
BC807-25L
Q16
BC817-25L
R263
NC
R264
NC
R259
33K
C233
220nF
R67
100
- RELE
GND
SIGNAL
B-MUTE
ENABLE
SIGNAL LED
INTERLOCK
-15V
+15V
+ RELE
VSQ
+5V
C-MUTE
A-MUTE