Symetrix 425 - Page 48

OF
COMPANY:
SYMETRIX INC.
4211 24th Ave W
SEATTLE, WA 98199
TITLE:
DRAWING NO:
REV:
SHEET:
DATED:
DATED:
DRAWN:
RELEASED:
SYSTEM IN/OUT
(SHOWN IN)
LIMITER
THRESHOLD
(FRONT PANEL)
CH1 LIMITER SIDE CHAIN
LIMITER
THRESHOLD
TRIM
425 DUAL COMP/LIMITER/EXPANDER
022001-SCH
E2
4
7
BYPASS
D20
1N4148
R71
2M0
C30
.039
5
+
6
-
7
U12B
RC4560
R72
15K8
D21
1N4148
C31
10pF
R73
10K0
R74
200 OHM
D22
1N4148
R62
1M
3
+
2
-
1
U7A
RC4560
R64
249K0
R65
24K3
D17
1N4148
R66
1K00
CW
3
1
2
R75
50KB
C25
.047
R57
51K
C17
.01
CW
3
1
2
R158
100K
R173
12K
11
12
10
SW4D
R164
220K
-15VA
+15VA
-15VA
+15VA
PEAK_DET_CH1
CH1_CTRL
LIMLEDS_CH1