Symetrix 425 - Page 43

115
REV# REVISIONS: DATE DATEREVISIONS: REV#
COMPONENT SIDE
022001 REV E
SYMETRIX, INC.
COPYRIGHT 1991
P/N 022001 REV ’E’
PIN 1 PIN 12
R117
R116
T1
HS2
HS1
U29
U28
C49
R112
C51
R114
C50
R113
C52
R115
R111
D12
R110
D11
C48
R109
R45
C47
R108
D10
R50
D9
R48
C46
C45
R47
R220
R219
SW6
D53
R218
C68
R217
R216
U27
R215
R214
C67
C66
D52
R213
R212
D51
D50
Q8
R211
D49
C65
R210
C64
R209
R208
U26
R207
D48
R206
R205
R204
R203
D47
R202
R201
D46
R200
R199
R198
R197
C63
C62
U25
R195
R192
R190
R189
R188
R187
R186
R185
R184
R183
D40
U24
C61
C60
R182
R181
R180
D39
R179
R178
R177
C59
R176
R175
R174
U23
U22
R173
R172
R171
R170
C58
R169
R168
U21
R167
R166
C57
C14
R165
R164
J12
BP20
BP19
BP18
BP17
BP16
BP15
BP14
BP13
BP12
BP11
BP10
BP9
BP8
BP7
BP6
BP5
BP4
BP3
BP1
BP2
R163
R162
R161
R160
R159
R158
R157
R156
R155
C56
R154
C55
R153
R152
D38
R151
R150
R149
D37
R148
R147
C54
D36
R146
U20
C53
R145
D35
R107
R106
J14
R104
R103
R105
R102
R101
R100
C44
R99
R98
U15
R97
C43
R96
C42
R95
C41
R94
C40
R93
R92
C39
C38
R91
U14
R90
C37
J11
J10
J9
R89
R88
R87
R86
R85
U13
R84
C36
C35
C34
C33
R83
R82
J8
R81
R80
R79
R78
C32
R77
SW5
D22
R74
R73
C31
D21
R72
U12
C30
R71
D20
R70
C29
R69
C28
R68
C27
R67
SW4
R76
J13
C25
R75
R66
D17
U11
R65
J7
J6
C24
C23
C22
C21
U10
U9
C20
C19
SW2
J5
C18
R63
R64
R62
R61
R60
C26
R59
R58
C17
R57
SW1
U8
D15
D14
R56
R55
D13
R54
R53
R52
R51
C16
C15
R49
U7
R46
R44
R43
R42
D7
R41
R40
U4
D6
D5
Q5
R39
D4
C13
R38
C12
R37
R36
R35
D3
R34
R33
R32
R31
R30
D2
R29
R28
R27
C10
R26
R25
R24
U6
U5
R23
R22
R21
R20
R19
R18
D1
U3
C11
C9
R17
J4
R14
R16
R15
C7
J3
C8
R13
R12
R11
R10
R9
C6
R8
U2
R7
C5
C4
C3
R6
R5
C2
R4
R3
R2
C1
R1
U1
J2
J1
120018
-15VA
+15VA
CAUTION
CAUTION
CAUTION HAZARDOUS VOLTAGE
79M15
78M15
OUTPUT
OUTPUT
SIDECHAIN
INPUT
INPUT
OUTPUT
OUTPUT
SIDECHAIN
INPUT
INPUT
TRIM
CONVERTER
CH2 LOG
THRESHOLD
CH2 LIMITER
TRIM CH2
DISTORTION
THRESHOLD TRIM
LIMITER
A.C. RANGE SELECT
A.C. SWITCH
OPTIONAL
L
GND
N
1/8AMP FOR 230V
1/4AMP FOR 117V
FUSE
TRIM
CONVERTER
CH1 LOG
TRIM CH1
DISTORTION
50KB
50KB
500KA 50KB
50KB 50KB
EXP THRES
EXP REL COMP THRES COMP REL COMP RATIO
LIM THRESH
50KB
GAIN
IN/BYPASS
DUAL MONO
STEREO/
EXP THRES
50KB
EXP REL
500KA
50KB
500KA
COMP THRES COMP REL COMP RATIO
LIM THRESH
50KB
50KB
IN/BYPASS
GAIN
50KB
230
115
1
1
8/27/93ERROR ON SILKSCREEN CALLED OUTE2
IGNORE THIS (ERROR ON SILKSCREEN)
TP
TP
7/6/93NYLON STANDOFFS NOW METALE1
E 12/1/92BOARD REV’D TO REV#E
3/10/99BOARD REV’D TO REV#D (ECO#170)D
CHANNEL 2
CHANNEL 1
CHANNEL 2CHANNEL 1
12/16/91BOARD REV’D TO REV#CC
11/22/91B BOARD REV’D TO REV#B
11/20/91BOARD REV’D TO REV#A
50KB
THRESHOLD RELEASE
500KA
THRESHOLD
50KB
RELEASE
500KA
RATIO
50KB
THRESHOLD
50KB
GAIN
50KB
IN/
BYPASS
50KB 500KA 50KB 500KA 50KB 50KB 50KB
IN/
BYPASS
GAINTHRESHOLDRATIORELEASETHRESHOLDRELEASETHRESHOLD
STEREO/
DUAL MONO
BALANCED
INPUT
BALANCED
INPUT
SIDECHAIN
IN/OUT
BALANCED
OUTPUT
UNBALANCED
OUTPUT
UNBALANCED
UNBALANCED
OUTPUT
UNBALANCED
OUTPUT
BALANCED
IN/OUT
SIDECHAIN
INPUT
BALANCED
INPUT
BALANCED
OPTIONAL
POWER
SWITCH
A
REV.
DWG
10-1-91
E2022001-ASY
425MBOARD ASSY
ENG.
MANF.
PURCH.
BY
DRAWN
SHEET 1 OF 1
DATE
NO.
DWG
TITLE
James Husted
DATE
PRINTED
13-2