L1
J100
MIC INPUT
2
1
3
D
C100
104
3.5MM Jack Input Card
J801
C
B
A
SG803
SPC3
EGND-CD
J200
C233
104
J202
JACK3A
1
R
SG101
SPC3
SG100
SPC3
C801
104
SG204
SPC3
T
C131
104
TP12
+15V
AGND
-15V
C507
104
C508
104
Sheet 1 of 3
8
1
2
C156
10uF/16V
R143
100K
CH2 Ouput
C520
47uF/16V
C521
47uF/16V
8
R503
100
R504
100
+15V
-15V
CH1 Ouput
+15V
-15V
R
D
C
B
A
C252
+15V
-15V
R226
2
3
2
3
+15V
-15V
10K
8
4
U204A
TL072
C250
C251
104
7
8
4
U102A
TL072
*
+15V
-15V
104
+15_GTR
2
3
-15_GTR
C125
C126
104
1
8
4
+15V
1
-15V
U502A
TL072
104
R169
+15_GTR
1
-15_GTR
3K
R190
1M
VR100A
10K 10C
C244
10uF/16V
C501
104
C502
104
R138
0
U103B
TL072
5
7
6
R159
13.7K
C114
R158
6.81K
C326
104
C336
104
222
R260
100
+15V
-15V
C505
C503
104
C504
C506
104
104
L1 Compact System
104
FRAMINGHAM, MA 01701-9168
R
Input / Output PCB
P/N: 319966-000S Rev. 01
54321
+15V
20KA
R199
100
C174
47uF/16V
C175
47uF/16V
R215
100
-15V
R151
34.8K
C158
C159
473
473
R152
68K
CH1 FIXED EQ
RCA_IN
SG205
*
RCA_SH
R510
2.2K
R118
1M
C259
R205
9.76K
R206
9.76K
102 10%
C150
*
332
C258
+15_MIC
-15_MIC
8
2
3
4
U100A
NJM2068
R511
C500
6
5
U204B
TL072
C120
C123
10K
+15V
-15V
+15_MIC
-15_MIC
104
101
2
3
1
104
R176
R187
7
8
4
U202A
TL072
C212
C213
104
*
*
C155
*
+15V
-15V
104
1
R112
0
R121
*
CN308C
3
2
1
*
3PIN-1A
SG206
*
U101A
TL072
3
2
R127
8.87K
C145
103 10%
C109
10uF/16V
VR200
8
4
R235
R288
2K
C152
R129
60.4K
*
101
+15V
1
-15V
C141
104
VR100
+15V
-15V
C161
101
R221
C160
101
R219
2K
R519
150K
5
R154
48.7K
*
R155
17.8K
C121
C124
104
104
R220
4.99K
R520
*
2
3
7
6
C111
C110
R134
100K
R290
15.8K
CH1
CH2
R506
0
473
473
+15V
8
4
-15V
R234
1
0
1
+15V
6
5
C134
2
3
0
R135
97.6K
U101B
TL072
R289
33K
8
4
U205A
TL072
U207
NJM2120
L1 Compact I/O Board Rev 1 - Page 1 of 3
R166
22K
7
101
+15V
1
-15V
5
R218
20K
C201
104
R189
10
2
3
6
5
6
5
U502B
TL072
R202
59K
R111
1k 1%
Q107
2N4403
C143
R105
C144
R301
68K
8
4
R303
68K
U305B
TL072
6.8K
471
+15_MIC
C453
C136
104
104
C454
C173
104
-15_MIC
104
C207
*
TP11
1
R306
R521
100
7
R304
10K
10K
+15V
-15V
6
5
2
C300
C303
104
10uF/16V
U202B
TL072
104
TP21
C243
1
2
VR200A
R137
0
7
471
4.99K 1%
6
5
U100B
NJM2068
+15V
1
-15V
U305A
TL072
7
*
7
R204
7.87K
C256
103 10%
R201
95.3K
R103
2K 1%
C106
SG202
SPC3
C204
*
C203
*
R102
2K 1%
SHLD_3_5MM
R213
R214
C309
102
R801
R802
R803
-15_MIC
C804
104
1K
1K
C115
104
R175
0
R225
1.8M
R227
1.8M
6.8K
6.8K
*
R228
100
R229
D100
BAV99
D101
BAV99
C105
22uF/16V
C107
101
C108
101
100
C253
473
CN308D
1
2
3
4
5
CN308B
1
2
3
4
5
C325
10uF/16V
C240
10uF/16V
C254
45.3K
R104
4.99k 1%
R106
4.99k 1%
C242
104
D202
BAV99
+15_GTR-15_GTR
D203
BAV99
C245
104
R267
22.6K
473
R200
C206
R188
CN308A
R168
12K
R170
24K
C308
*
10
R108
10K 1%
1
2
3
4
5
104
2
3
+15V
-15V
R110
1K 1%
Q100
2N4403
R149
270 1%
C514
*
C224
*
U201A
TL072
8
4
C210
C211
C148
104
+15V
-15V
104
RCA_IN
1
104
Q101
2N4403
R114
150 1%
220uF/6.3V
RCA_SH
D304
BAV99
R217
R246
1.8M
R230
R264
1.8M
R171
Q102
2N4403
Q108
MMBT4401
C117
R236
3.9K
R237
*
+15V
R238
2K
1K
1K
C225
103 10%
R247
59K
C116
220uF/6.3V
*
VR100B
10K 10C
Q103
2N4403
-15V
C238
R239
R507
6.8K
D306
BAV99
C202
101
101
2K
6
5
2
3
R109
10K 1%
Q109
MMBT4401
R113
1k 1%
+15V-15V
U501B
TL072
8
4
U501A
TL072
R208
7.87K
C226
103 10%
R207
95.3K
Q104
2N4403
+15V-15V
R512
3.3K
R513
+15_GTR
-15_GTR
R116
2.2k 1%
220uF/6.3V
220uF/6.3V
C122
104
D305
BAV99
7
3.3K
1
C132
C118
R240
3.9K
R241
3.9K
6
5
Q105
2N4403
R115
150 1%
R150
270 1%
R307
20K
R322
20K
R325
U201B
TL072
4.99K 1%
-15_MIC
1K
C119
104
R117
150
Q106
2N4403
R107
R334
3K
5 dB Gain
R266
R508
6.8K
C246
R509
6.8K
R265
6.8K
C255
103 10%
7
R100
100 1%
C102
471
SPC3
R101
100 1%
C103
101
101
22uF/16V
C803
102
SG802
SPC3
C162
2
3
C802
102
SG801
C236
102
SG203
SPC3
SG200
SPC3
C133
SG201
104
SPC3
GUITAR TONE MATCH
1
2
3 4
6
R165
100K
6
5
U102B
TL072
C154
10uF/16V
7
C112
103 10%
103 10%
R142
43.2K
R167
R139
100K
88.7K
CH2 VOLUME CONTROL
R285
2.2K
C231
+15V
-15V
10uF/16V
C235
C237
104
104
VR200B
20KA
R287
100K
INSTRUMENT
SW200A
SW-2P2T
SW200B
SW-2P2T
LINE
SW200C
SW-2P2T
SW200D
C146
10uF/16V
4. * = OPEN
3. ALL POLARIZED CAPACITORS IN uf, 20%; 50V MINIMUM.
2. ALL UNPOLARIZED CAPACITORS IN uF, 10% OR BETTER; 50V MINIMUM.
(POWER SUPPLY BYPASS CAPACITORS ARE 20%).
1. ALL RESISTORS IN OHMS, 1% 1/16W(0603).
NOTES: (UNLESS OTHERWISE NOTED)
6 7
SW-2P2T
TAB2
TAB1
TAB3
TAB4
R258
R119
1M
10
R141
10K
C113
21
3
4
L1 Compact I/O Board Rev 1 - Page 2 of 3
U317A
R321
C315
104
+15V
R332
20K
C375
103 10%
-15V
C316
104
HIGH HPF
6
5
U301B
TL072
R309
33K
7
D
R172
C127
C128
104
104
C169
C170
1u
182
820
C171
C101
+15V
-15V
CH1 Output
+15V
C
-15V
WOL
120Hz +/-5dB
U103A
TL072
3
VR101
2
50KB
R173
R232
C166
1M
474
R162
1K
C129
C130
104
104
U104A
TL072
2
3
103
R144
100K
C157
10uF/16V
+15V
8
1
4
-15V
820
VR102
202
50KB
+15V
8
1
4
EQ LOW/HIGH
-15V
R128
47K
R145
100K
R122
39K
CH1_TONE
HGI
H
10KHz +/-5dB
R123
R130
1K
10P
C149
6
5
C147
122
39K
U104B
TL072
C151
10uF/16V
7
C374
103 10%
R333
80.6K
CH1 & CH2 SUMMER
101
C367
R311
10K
CH2 Output
B
R312
10K
+15V
-15V
C444
C445
104
104
R261
*
R317
2
3
8
4
U300A
TL072
10K
+15V
-15V
R327
10
1
TP31
1
2
C401
473
R342
23.2K
C406
473
R341
158K
2
3
U308A
TL072
8
4
R300
C376
103 10%
+15V
1
-15V
+15V
-15V
33K
20K
R450
34K
R352
20K
C377
103 10%
R351
80.6K
+15V
-15V
C332
C333
104
C317
C318
473
104
TL072
+15V
8
3
1
2
4
-15V
R451
12K
6
7
5
U317B
TL072
6
7
5
U302B
TL072
104
104
LOW SYSTEM EQ
R376
23.2K
C424
C378
473
R412
158K
CH1 LED CONTROL
CH1 Signal LED
R177
510
Q110
2N2222
CH1 Clip LED
CH1_GRN
D102
GREEN
D103
GREEN
CH1_RED
Q112
2N2222
+15V
R178
510
D107
RED
D108
RED
R180
15.8K
+15V
R126
75K
R183
R125
150K
+15V
R133
100K
24K
R182
R184
100K
R160
10K
CH1_GRN
+15V
R185
*
+15V
1
U107A
TL072
R163
24K
R148
10K
C153
102
8
3
2
4
-15V
D105
1SS355
1M
R186
0
5
6
U107B
TL072
R140
100K
7
R164
CH1_RED
24K
R147
10K
C142
102
R153
10K
CH1_TONE
C208
104
R156
20K
R248
A
1M
R131
10K
5
6
R120
D109
U106B
TL072
100K
5.1V
7
C139
+15V
C140
-15V
104
D106
R132
D104
1SS355
C172
1uF/16V
TP14
R174
0
R181
470K
1
2
C104
R179
2
3
C137
C138
-15V
104
8
4
U106A
TL072
104
10K
*
100K
1
5.1V
R124
+15V
12K
104
+15V
-15V
1 2
Line Output Driver
R316
20K
R326
330
D401
BAV99
+15V -15V
R453
100R
C301
10uF/50V
D402
BAV99
C442
10uF/50V
R320
200K
R452
200K
C387
R354
4.99K
223
C388
223
R355
*
2
3
R356
5.36K
8
4
U301A
TL072
+15V
-15V
R223
R231
0
22.6K
HPF_SOUT
HPF_SIN
+15V
-15V
C426
6
5
U308B
TL072
R343
7
24.3K
103 10%
CH2 LED CONTROL
CH2 Output
C209
104
R249
20K
R251
1M
R216
10K
R262
D110
5
6
U300B
TL072
100K
7
5.1V
1
273
R344
24.3K
C425
C349
101
C446
101
C319
C320
104
R209
12K
+15V
-15V
CN302A
10PIN-1
1
EGND
2
EGND
3
C350
101
C448
101
Neg
GND
Pos
EGND
4
EGND
5
Line Out-
6
AGND
7
Line Out+
8
EGND
9
EGND
10
EGND
HIGH SYSTEM EQ
R353
68K
C205
6
5
2
3
7
U205B
TL072
+15V
-15V
+15V
8
4
-15V
U302A
TL072
+15V
-15V
R224
10K
*
R275
100K
7
C218
C219
104
1
+15V
-15V
C260
1uF/16V
104
C321
R413
24.3K
C334
C335
104
R366
24.3K
104
6
5
C220
C221
104
U309B
TL072
D208
5.1V
104
C322
104
104
D206
1SS355
CN302B
10PIN
C389
103 10%
R302
91.0K
104
Line Output Card
1
2
3
4
5
6
7
8
9
10
C390
103 10%
R381
97.6K
C428
273
R414
24.3K
C427
103 10%
R157
10K
R276
15.8K
TP24
1
2
R243
0
R277
470K
C701
101
Neg
GND
Pos
R373
8.45K
+15V
R211
75K
U303A
TL072
2
3
U309A
TL072
R210
150K
R278
+15V
R523
*
8
4
R136
100K
R279
0
3
C702
101
3
2
24K
R280
100K
R161
10K
R455
8
4
+15V
-15V
R330
R331
R454
R525
1K
1
SG701
SPC3
100R
SG703
SPC3
+15V
1
-15V
CH2_GRN
3
2
R282
5
6
330
330
330
C386
10uF/16V
R281
+15V
8
4
-15V
D207
1M
U206B
TL072
R146
100K
SG702
SPC3
SPC3
C397
104
C400
104
R313
100K
*
1
U206A
TL072
1SS355
7
SG704
CH2_RED
C361
101
C312
472
R338
R308
100K
R254
24K
R244
10K
R250
24K
R245
C449
101
39K
R347
14K
Bass Audio
10K
C362
101
R
C450
101
R348
7.15K
C342
472
CH2 Signal LED
R271
+15V
510
Q200
2N2222
C222
102
Q202
2N2222
C239
102
J300
RCA2C
R
L
T
J301
INPUT JACK
U303B
TL072
5
6
R399
0
R367
R398
1K
*
R233
CH2 Clip LED
C351
C447
7
*
D204
GREEN
D205
GREEN
CH2_RED
102
102
R242
CH2_GRN
SG705
SPC3
SCR301
1
SCREW-1
SCR302
1
SCREW-1
SCR303
1
SCREW-1
C323
104
+15V
C324
-15V
C410
102 10%
R378
C409
R368
102 10%
53.6K
R310
*
R335
10K
6
7
5
U310B
*
TL072
R358
1.96K
107K
6
5
U306B
TL072
104
R369
6
5
100K
U304B
TL072
HPF_SOUT
7
High Audio
R252
*
R359
14K
7
R357
100K
D
C
C214
+15V
-15V
R269
2
3
*
8
4
U200A
*
+15V
-15V
R
1
B
A
+15V
R272
510
D209
RED
D210
RED
HPF_SIN
*
C215
*
R256
*
104
4. * = OPEN
3. ALL POLARIZED CAPACITORS IN uf, 20%; 50V MINIMUM.
2. ALL UNPOLARIZED CAPACITORS IN
(POWER SUPPLY BYPASS CAPACITORS ARE 20%).
1. ALL RESISTORS IN OHMS, 1% 1/16W(0603).
NOTES: (UNLESS OTHERWISE NOTED)
+15V
-15V
R253
C216
C217
104
R263
*
R259
*
6
5
U200B
*
*
FRAMINGHAM, MA 01701-9168
R
L1 Compact System
R268
*
7
+15V
AGND
-15V
uF, 10% OR BETTER; 50V MINIMUM.
Input / Output PCB
P/N: 319966-000S Rev. 01
Sheet 2 of 3
4
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