Symetrix 425 - Page 47

OF
DRAWING NO:
COMPANY:
SYMETRIX INC.
4211 24th Ave W
SEATTLE, WA 98199
TITLE:
REV:
SHEET:
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DATED:
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RELEASED:
425 DUAL COMP/LIMITER/EXPANDER
022001-SCH
E2
37
POWER SUPPLY
OPTIONAL
MAINS POWER
(INTERNAL PC MOUNTED)
DETACHABLE
A.C. CORD
A.C.RANGE SELECT
SWITCH (INTERNAL)
MAINS FUSE
1/4 AMP FUSE FOR 117V
1/8 AMP FUSE FOR 230V
4
3
2
1
U8
VM48
230 VAC
100/115 VAC
SW1
R63
18 OHM
C18
.01uF
1
3
2
J5
IEC A.C. JACK
2
1
3
SW2A
5
6
4
SW2B
+
C19
1000/35
+
C20
1000/35
1
VIN
3
VOUT
2
GND
U9
78M15
2
VIN
3
VOUT
1
GND
U10
79M15
+
C21
4.7/50
+
C22
4.7/50
C23
.01uF
C24
.01uF
8
4
U1C
RC4560
8
4
U3C
RC4560
8
4
U6C
RC4560
8
4
U4C
RC4560
8
4
U21C
RC4560
8
4
U24C
RC4560
8
4
U12C
RC4560
8
4
U14C
RC4560
8
4
U15C
RC4560
BP1
.1uF
BP2
.1uF
BP3
.1uF
BP4
.1uF
BP5
.1uF
BP6
.1uF
BP7
.1uF
BP8
.1uF
BP9
.1uF
BP10
.1uF
BP11
.1uF
BP12
.1uF
BP13
.1uF
BP14
.1uF
BP15
.1uF
BP16
.1uF
BP17
.1uF
BP18
.1uF
BP19
.1uF
BP20
.1uF
8
4
U20C
RC4560
8
4
U11C
RC4560
8
4
U7C
RC4560
8
4
U25C
RC4560
8
4
U27C
RC4560
8
4
U23C
RC4560
8
4
U26C
RC4560
J6
J7
1
2
3
45
6
7
8
T1
120026
R116
0 OHM
R117
0 OHM
+15VA
-15VA
+15VA
-15VA
J7
T1,1