Symetrix 425 - Page 51

OF
COMPANY:
SYMETRIX INC.
4211 24th Ave W
SEATTLE, WA 98199
TITLE:
DRAWING NO:
REV:
SHEET:
DATED:
DATED:
DRAWN:
RELEASED:
CH2 EXPANDER SIDE CHAIN
EXPANDER
THRESHOLD
COMPRESSOR
THRESHOLD
(FRONT PANEL)
CH2 COMPRESSOR
425 DUAL COMP/LIMITER/EXPANDER
022001-SCH
E2
(BYPASS)
CHANNEL 2
77
RATIO
RELEASE
SIDECHAIN
IN/OUT
RELEASE
CHANNEL 2
LOG CONVERTER
TRIM
(SHOWN IN)
(FRONT PANEL)
(FRONT PANEL)
(FRONT PANEL)
(SHOWN IN)
(FRONT PANEL)
CHANNEL 2
IN/OUT
7
6
8
U22B
MC3346P
3
2
15
4
U22A
MC3346P
3
+
2
-
1
U23A
RC4560
R174
10K0
R175
2K2
5
+
6
-
7
U23B
RC4560
R176
10K0
C59
22pF
R177
100 OHM
R178
82K
CW
3
1
2
R179
100K
10
9
11
U22C
MC3346P
D39
1N4148
R180
200K0
13
12
14
U22D
MC3346P
R181
1M
R182
2K7
+
C60
10/35
+
C61
3.3/25t
3
+
2
-
1
U24A
RC4560
D40
1N4148
R183
200K0
R184
6K98
R185
560K
R186
1M5
CW
3
1
2
R187
50KB
3
+
2
-
1
U25A
RC4560
R188
30K1
R189
1K00
R190
158K0
CW
3
1
2
R192
50KB
5
+
6
-
7
U25B
RC4560
+
C62
4.7/50
+
C63
10/35
R197
2K2
R198
10M
R199
10K0
R200
10K0
D46
1N4148
D47
1N4148
R203
75K
5
+
6
-
7
U24B
RC4560
R204
4K7
R205
10M
R206
2M0
D48
1N4148
R207
10K0
3
+
2
-
1
U26A
RC4560
R208
20K
R209
2K7
C64
.22uF
R210
1M
C65
22pF
D49
1N4148
R211
1K00
Q8
2N4401
D50
1N4148
D51
1N4148
R212
10K0
CW
3
1
2
R213
500KA
D52
1N4148
+
C66
3.3/25t
+
C67
4.7/50
R214
2K2
R215
10M
5
+
6
-
7
U26B
RC4560
3
+
2
-
1
U15A
RC4560
R216
10K0
R217
10K0
C68
22pF
8
9
7
SW6C
R218
100 OHM
D53
1N4148
2
1
3
SW6A
R219
10K0
R220
150K0
CW
3
1
2
R107
500KA
CW
3
1
2
R201
50KB
R202
30K
R108
13K0
+
C47
4.7/50
R109
2K00
3
+
2
-
1
U27A
RC4560
R110
1M
C48
22pF
D11
1N4148
R111
200 OHM
D12
1N4148
R112
2K2
C49
.22uF
R114
3K3
+
C51
33/35
R195
6K2
3
2
15
4
U29A
MC3346P
13
12
14
U29D
MC3346P
+15VA
-15VA
-15VA
-15VA
+15VA
+15VA
-15VA
-15VA
-15VA
+15VA
+15VA
-15VA
-15VA
-15VA
-15VA
-15VA
-15VA
S/C_IN_CH2
CH2_CTRL
EXPLEDS_CH2
COMPLEDS_CH2
PEAK_DET_CH2