H:\MM8Z\102870-1.SCH 10-May-1999
102870-2.SCH 102870-4.SCH 102870-5.SCH
REAR PCB
GND
4
GND
20k
-15V
TL072
22/25
GND
R103
20k
R185
2
2k
Z18A
1
J20-18
LINE 8
3
R68
3
C77
84
+15V
CH 4
GND
PHONO
S9A
LINE
90.9k
7.5k
GND
GND
GND
PH/LINE 7
GND
J5A
2
1
R35
47.5k
C12
150PF
L8
3T
C123
47pF
3
2
R44
Z7A
84
4570
+15V
-15V
R52
1
22/25
C76
R106
20k
J20-16
GND
GND
GND
LINE 6
4
R184
20k
2k
2
Z8A
-15V
TL072
1
22/25
C75
R99
20k
J20-13
B MIX
J4B
3
GND
100/10
C32
+
1
2
3
R67
R59
162
3
C24
.036
84
+15V
C110
.01
B MIX
J5B
GND
100/10
C33
+
1
2
3
R60
162
C25
.036
C111
.01
CH 3
PHONO
LINE
90.9k
7.5k
GND
GND
S8A
GND
GND
PH/LINE 5
J4A
3T
Z5A
1
3
1
C74
J20-11
L7
84
+15V
GND
GND
GND
4
R183
20k
2k
2
Z6A
-15V
TL072
22/25
R95
20k
GND
2
R34
47.5k
C11
150PF
47pF
C122
2
R43
4570
-15V
R51
22/25
R102
20k
LINE 4
1
C72
J20-8
A MIX
J3B
3
GND
100/10
C31
+
1
2
3
R58
162
R66
3
C23
.036
84
+15V
C109
.01
CH 2
PHONO
LINE
90.9k
7.5k
GND
GND
S7A
GND
GND
PH/LINE 3
J3A
GND
2
R33
47.5k
C10
150PF
C121
47pF
2
R42
Z3A
4570
-15V
R50
22/25
R98
20k
3T
1
J20-6
GND
L6
84
+15V
GND
GND
4
R157
20k
2k
2
Z4A
-15V
TL072
1
22/25
R91
20k
J20-3
1
3
C71
LINE 2
3
R65
3
C65
84
+15V
A MIX
J2B
GND
100/10
C30
+
1
2
3
R57
162
C22
.036
C104
.01
CH 1
PHONO
LINE
90.9k
7.5k
GND
GND
GND
S6A
GND
PH/LINE 1
J2A
GND
2
1
R32
47.5k
C9
150PF
L5
3T
47pF
C118
3
2
R41
Z1A
84
4570
+15V
-15V
R49
1
22/25
C64
R94
20k
J20-1
J3-18
FRONT PCB
R164
4.02k
BASS
R20A
20KB
C179
.033
2
13
30.1k
R165
4.02k
20KA
R5C
GND
GND
4 6
22/25
GND
R104
20k
9.09k
R213
GND
NO CHG TO THIS SHEET
SKH
RWJ 10MAY99
CHECKED BY:DRAWN BY:
ACTION:
20k
MTCUE4L
6
R305
TL072
TO SHEET 5
Z12B
J7-24
RJ
10802 47th Avenue West
Mukilteo WA 98275-5098
SHEET:
1 5
LEFT INPUTS MM 8z
of
NOTES: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS 1/4W 1% METAL FILM
2. ALL SWITCHES SHOWN IN THEIR "OUT" OR "OFF" POSITION
102870
.0033
R226
LEVEL
1k
7
J14-24
GND
CH 4
5
R210
5
GND
GND
4.02k
R268
CWCWCW
20KB
C146
13
R269
4.02k
5
Z15B
7
CW
R5B
20KA
C78
+10dB
7
8
R79C
10KA
10KA
9.09k
R176
20k
GND
AUX PCB
R19A
2
.01
7.5k
6
TL072
8
R75C
GND
GND
MID
150pF
7
R175
C108
R146
GND
CW
20k
-15V
22/25
R177
20k
J3-16
J6-7&8
J28-7
1.33k
R248
20KB
13
R249
1.33k
C16
HPCUE4L
TO SHEET 5
R75A
10KA
1 3
4.7/25
R174
2
Z20A
TL072
1
C70
R301
301
LEFTLEVEL
AUX
OUT
CH 4 B
R18A
2
.0033
2
3
J11
TREBLE
AUX
OUT
-15V
C165
GND
84
+15V
C147
GND
2059
GND
GND
CW
22/25
.033
9.09k
3
10KA
Z19A
20k
4574
R79A
GND
J3-13
4.02k
20KB
C178
4.02k
20KA
R4C
GND
GND
GND
R105
R86
20k
TO SHEET 5
MTCUE3L
C52
+15V
1
20k
411
2
R180
7
20k
Z19B
5
6
R271
20k
2
1 3
LEVEL
AUX IN
AUX
IN
R162
13
R163
20k
TL072
J7-20
LEFT
BASS
R17A
2
30.1k
4 6
22/25
R100
1k
6
Z11B
J14-20
J13-1
R179
R178
R181
20k
R270
20k
J10
.0033
C144
R225
GND
LEVEL
CH 3
5
CW
C156
R209
5
+10dB
7
J19-1
TO SHEET 2
MICSUM
J13-7J13-5
R266
4.02k
CWCWCW
R16A
MID
20KB
2
C107
.01
13
R267
4.02k
R131
7.5k
5
6
Z14B
150pF
TL072
7
R4B
20KA
B MIX CH 4
ASSIGN
POST
PRE
123
GND
S18A
2P2T
J14-19
J7-19
LEFT MASTER
J8-1
J8-2
MIC
J21-1
J21-2
J19-5
J19-7
J3-11
J6-1&2
J28-1
1.33k
R246
20KB
13
R247
1.33k
C15
HPCUE3L
TO SHEET 5
CH 3 B
TREBLE
R15A
.033
2
C145
.0033
R107
9.09k
GND
TO SHEET 5
REAR PCB
GND
GND
GND
20k
MTCUE2L
GND
C177
20KA
R87
20k
4.02k
20KB
4.02k
R3C
GND
-15V
R190
J3-8
20k
TL072
J14-15
J7-15
20k
TL072
22/25
301
OUT
R160
R14A
2
13
30.1k
R161
GND
LEVEL
4 6
22/25
R96
1k
6
Z10B
7
22/25
R187
2
Z17A
1
C86
R303
TAPE
LEFT
BASS
.0033
CH 2
5
5
C157
3
84
+15V
J12B
R224
C73
R208
+10dB
CW
R264
4.02k
CWCWCW
20KB
C142
13
R265
4.02k
5
6
Z13B
150pF
7
TL072
R3B
20KA
PROGRAM
LOOP
POST
GND
GND
2
PRE
123
2T2P
R13A
.01
7.5k
S12A
20k
MID
C14
R186
LOOP
J3-6
J4-7&8
1.33k
20KB
C106
1.33k
R126
HPCUE2L
TO SHEET 5
PROGRAM
J5-3
J22-3
C80
22/25
R302
100
J30
PROGRAM
LEFT
J25-7
R244
13
R245
CH 2 A
R12A
2
.0033
TREBLE
C143
GND
.033
GND
GND
9.09k
R108
20k
TO SHEET 5
MTCUE1L
J3-3
4.02k
CW
20KB
C176
4.02k
R2C
20KA
GND
R89
6P MOD
J1
20k
TL072
R158
R11A
2
13
30.1k
R159
GND
LEVEL
4 6
22/25
R92
1k
6
Z9B
7
J14-11
J7-11
AC
6
J24-4
J29-4
BASS
.0033
CH 1
5
5
J24-6
J29-6
R223
C66
R207
+10dB
CW
5
20KA
J29-5
R262
4.02k
CW
20KB
C140
13
4.02k
R263
6
Z22B
TL072
7
R2B
POST
GND
CTCTAC
POWER
12345
J24-5
POWER SUPPLY
SHEET 3
R10A
2
.01
7.5k
150pF
ASSIGN
123
J7-16
J14-16
J3-1
J4-1&2
1.33k
CW
MID
20KB
C105
1.33k
R125
C13
HPCUE1L
A MIX CH 1
TO SHEET 5
PRE
S17A
2P2P
SELECT SWITCH
SHEET 3
J25-1
CH 1 A
R242
TREBLE
R9A
2
.0033
13
R243
SHEET 3
LEFT CHANNEL
C141
LEFT CHANNEL
H:\MM8Z\102870-2.SCH 10-May-1999
REAR PCB
GND
20k
6
TL072
22/25
GND
R81
20k
R143
2k
Z18B
LINE 8
6
5
7
C47
J20-19
CH 4
PHONO
LINE
90.9k
7.5k
GND
GND
S9B
GND
GND
PH/LINE 7
J5C
5
R30
47.5k
150PF
47pF
R40
R48
R84
20k
C4
C117
4570
22/25
6
Z7B
3T
7
C46
J20-17
GND
R142
20k
L4
2k
5
TL072
6
Z8B
7
22/25
GND
R77
20k
J20-14
LINE 6
6
R63
5
C45
B MIX
J4D
GND
100/10
C28
+
4
5
6
R55
162
C20
.036
C102
.01
B MIX
J5D
GND
100/10
C29
+
4
5
6
R56
162
R64
C21
.036
C103
.01
CH 3
GND
PHONO
S8B
LINE
90.9k
7.5k
GND
GND
GND
PH/LINE 5
J4C
5
R29
47.5k
150PF
47pF
R39
R47
R80
20k
C116
4570
22/25
GND
R141
C3
3T
6
Z5B
7
J20-12
20k
L3
2k
5
TL072
6
Z6B
7
22/25
C44
GND
R73
20k
J20-9
LINE 4
6
R62
5
C42
A MIX
J3D
GND
100/10
C27
+
4
5
6
R54
162
C19
.036
C101
.01
CH 2
GND
PHONO
S7B
LINE
90.9k
7.5k
GND
GND
GND
PH/LINE 3
J3C
5
R28
47.5k
150PF
C2
L2
3T
C115
47pF
5
6
R38
Z3B
4570
R46
7
22/25
C41
R76
20k
J20-7
GND
GND
LINE 2
A MIX
J2D
6
GND
100/10
C26
7
C35
J20-4
+
4
5
6
R53
R61
162
5
C18
.036
C96
.01
R115
20k
2k
6
Z4B
TL072
22/25
R69
20k
CH 1
PHONO
LINE
90.9k
7.5k
GND
GND
PH/LINE 1
J2C
5
R71
47.5k
GND
C54
150PF
S6B
3T
L1
GND
C112
47pF
5
6
R37
Z1B
4570
R45
7
22/25
C34
R72
20k
J20-2
J3-19
FRONT PCB
R122
4.02k
BASS
R20B
20KB
.0033
C175
.033
5
46
R217
30.1k
R123
4.02k
-15V
20KA
R5A
GND
1 3
22/25
GND
R82
20k
R101
20k
R23
TO SHEET 5
MTCUE4R
-15V
TL072
2
1k
Z12A
1
+10dB
J14-23
GND
NO CHG TO THIS PART
SKH
RWJ 10MAY99
9.09k
ACTION:
J7-23
CHECKED BY:DRAWN BY:
RJ
10802 47th Avenue West
Mukilteo WA 98275-5098
SHEET:
2 5
RIGHT INPUTS MM 8z
of
102870
4.02k
CWCWCW
20KB
C138
4.02k
GND
3
4
TL072
LEVEL
CH 4
2
CW
C48
R206
3
84
+15V
GND
R258
R19B
MID
5
.01
46
R259
7.5k
2
Z15A
150pF
8
+15V
1
9.09k
R134
20k
+10dB
GND
AUX PCB
R147
1.33k
20KB
C100
1.33k
C8
GND
GND
J3-17
J6-9&10
CH 4 B
J28-9
R240
TREBLE
R18B
5
.0033
46
R241
HPCUE4R
GND
TO SHEET 5
GND
4 6
CW
4.7/25
R132
20k
6
R133
TL072
22/25
R135
20k
301
AUX
OUT
Z20B
C139
LEVEL
OUT
5
5
7
C40
R296
J9
RIGHT
.033
9.09k
R111
20k
TO SHEET 5
MTCUE3R
AUX
R75B
10KA
C162
GND
CW
4.02k
20KB
C174
4.02k
GND
R90
GND
10KA
4 6
GND
J3-14
GND
GND
R79B
LEVEL
R120
46
R121
20k
-15V
J7-22
5
AUX IN
BASS
R17B
5
30.1k
20KA
R4A
1 3
22/25
R78
1k
2
Z11A
TL072
J14-22
J7-21
22/25
4574
Z19D
12
20k
4574
Z19C
10
AUX
IN
.0033
R216
GND
-15V
LEVEL
2
3
1
+10dB
J14-21
C53
14
13
R138
8
9
20k
J8
RIGHT
C154
R205
84
+15V
4
CH 3
CW
R261
R256
4.02k
CWCWCW
R16B
MID
20KB
C136
5
.01
46
4.02k
R257
7.5k
3
2
Z14A
8
150pF
+15V
TL072
1
FROM SHEET 1
R137
20k
MICSUM
R136
20k
R139
20k
20k
R260
J3-12
J6-3&4
J28-3
1.33k
R238
20KB
C99
46
R239
1.33k
R150
C7
HPCUE3R
TO SHEET 5
RIGHT MASTER
J19-3
J13-3
J19-9
J13-9
CH 3 B
TREBLE
R15B
5
C137
.0033
GND
J8-3
J21-3
REAR PCB
GND
.033
R112
9.09k
20k
TO SHEET 5
GND
TL072
R148
20k
GND
C173
GND
R93
MTCUE2R
4.7/25
R145
20k
6
Z17B
7
22/25
301
TAPE
OUT
J3-9
4.02k
20KB
4.02k
5
C56
R298
J12A
RIGHT
GND
C161
R118
46
R119
20k
-15V
J7-18
POST
BASS
R14B
5
30.1k
20KA
R3A
1 3
22/25
R74
1k
2
Z10A
TL072
1
J14-17
J14-18
J7-17
PROGRAM
LOOP
GND
GND
.0033
R215
-15V
GND
LEVEL
2
C43
R204
3
84
+15V
+10dB
PRE
456
2T2P
4
CH 2
CW
S12B
20k
LOOP
C134
R144
R254
4.02k
CWCWCW
R13B
MID
20KB
5
C98
.01
46
R255
4.02k
R151
7.5k
3
2
Z13A
150pF
8
+15V
TL072
1
PROGRAM
J5-4
J22-4
C50
22/25
R297
100
J31
PROGRAM
RIGHT
J3-7
J4-9&10
CH 2 A
J25-9
R236
1.33k
TREBLE
R12B
20KB
5
.0033
46
R237
1.33k
C6
HPCUE2R
GND
TO SHEET 5
AUX PCB
C206
0.1
C207
0.1
-15V
GND
J13-11
J13-12
C79
0.1
C81
0.1
C82
0.1
C83
0.1
-15V
REAR PCB
C135
J13-10
+15V
-15V
.033
9.09k
R114
20k
TO SHEET 5
+15V
J13-8
C200
0.1
C201
0.1
C202
0.1
C203
0.1
C204
0.1
C205
0.1
4.02k
C172
20KB
4.02k
GND
R97
MTCUE1R
-15V
J13-13
J13-4
J13-6
+15V
J3-4
GND
GND
GND
R116
46
R117
20k
-15V
J7-14
+15V
J13-14 J13-2
GND
BASS
R11B
5
30.1k
R2A
20KA
1 3
22/25
R70
1k
2
Z9A
TL072
J14-14
J7-13
J33-4
.0033
R214
GND
-15V
LEVEL
2
R203
3
1
+10dB
J14-13
J19-12
J33-3
LB2
C132
4
CH 1
C36
84
+15V
J19-11
GND GND
R252
4.02k
CWCWCW
R10B
MID
20KB
5
.01
46
R253
4.02k
7.5k
3
2
Z22A
150pF
8
+15V
TL072
1
CW
J19-6
J19-8
J19-10
GND
J21-4
GND
LB1
C97
R152
J19-4
J20-20
1.33k
20KB
1.33k
J3-2
SHEET 3
J4-3&4
CH1 A
J25-3
R234
R9B
5
.0033
46
R235
C5
HPCUE1R
TO SHEET 5
-15V
J19-13
J19-2
J20-15
J20-10
-15V
J24-1
J24-2
SELECT SWITCH
RIGHT CHANNEL
TREBLE
C133
RIGHT CHANNEL
SHEET 3
+15V
J19-14
J20-5
+15V
J24-3
H:\MM8Z\102870-3.SCH 10-May-1999
J20-19
J20-17
J20-14
J20-12
J20-9
J20-7
J20-4
SHEET 2
RIGHT
J20-2
J20-18
J20-16
J20-13
J20-11
J20-8
J20-6
J20-3
SHEET 1
LEFT
J20-1
ADG212
Z33E
GND
ADG212
Z34E
GND
SWITCH PCB
GND
5
-15V
GND
5
-15V
VLVL
GND
HEADPHONE PCB
J3-19
LINE 8
8 5
GND
V+
13V-4VL12
+15V
V+
13V-4VL12
+15V
C231
470pF
J6-10
J28-10
511
14
2164
R379
CH 4 B
7
J6-9
J28-9
6
CH 4 B
J7-23
4.7/25
15
Z32D
13
J14-23
PH/LN7
S5B
2P3T
C4
0.01
GND
GND
J3-17
CH 3 B
J7-22
4.7/25
60.4k
60.4k
C18
ADG212
ADG212
0.01
C17
60.4k
J3-14
J14-22
C10
R6
R8
1415
3 2
R399
J14-21
Z33B
Z34A
CH3 B
LINE 6
8 5
7
GND
J6-3
J6-4
J28-3
J28-4
J7-21
16
1
J11-5,6
6
GND
A
XFADER
200KB
PH/LN5
S4B
2P3T
470pF
2
C230
J3-12
11
B
13
R1A
511
J3-9
R289
Z32C
2164
J11-1,2
CH 2 A
LINE 4
8 5
7
GND
J4-10
J4-9
J25-9
J14-18
CH 2 A
J7-18
0.01
C16
GND
ADG212
ADG212
10
0.01
GND
12
6
4.7/25
60.4k
60.4k
C15
60.4k
PH/LN3
S3B
2P3T
J14-17
J7-17
C3
R9
R7
11 10
67
R398
J3-7
CH1 A
J7-14
4.7/25
9
Z33C
8
Z34D
J14-14
C9
J3-4
LINE 2
8 5
GND
J4-4
J14-13
J7-13
GND
470pF
-15V
C160
GND
J25-3
3
9
CH 1 A
6
7
J4-3
R288
511
841
2164
PH/LN1
S2B
2P3T
SHEET 2
2
Z32A
J3-2
RIGHT
30.1k
4.7/25
16
CH 4 B
J7-24
GND
+15V
R380
+15V
GND
J3-18
J14-24
C2
GND
CH 4 B
LINE 8
4 1
3
GND
J6-7
J6-8
J28-7
J28-8
J14-20
CH 3 B
J7-20
4.7/25
60.4k
60.4k
R4
C13
0.01
ADG212
1415
ADG212
3 2
C14
0.01
R397
60.4k
5
6
Z1B
TL072
7
J4-2
J7-16
1k
D1
2907A
CH 1 A
3
J4-1
J25-1
R391
2
Q22
4148
2
GND
PH/LN1
2P3T
D2
J3-1
S2A
SHEET 1
LEFT
78LO5
Q21
GND
2
C238
0.1
R390
1k
+15V
I O
VL
3 1
J3-3
LINE 4
J4-8
GND
GND
33.2k
8
+15V
CH 2 A
3
J4-7
J25-7
0.01
0.01
R85
PH/LN3
2
2P3T
CH 2 A
4.7/25
60.4k
60.4k
C12
ADG212
ADG212
C11
60.4k
47pF
S3A
J14-15
J7-15
11 10
67
C1
R5
R3
R396
C79
J3-6
9
Z34C
8
Z33D
GND
CH 1 A
4.7/25
1k
LINE 2
4 1
GND
J14-16
J14-11
J7-11
C7
4148
3 1
R392
J3-8
J28-2
J3-11
CH 3 B
PH/LN5
2P3T
4 1
GND
S4A
2
3
J6-1
J6-2
J28-1
2
PH/LN7
S5A
2P3T
J3-16
J3-13
LINE 6
4 1
GND
J14-19
J7-19
C8
470pF
R2
16
Z34B
1k
4148
D4
3 1
1
Z33A
2907A
R395
1k
GND
C49
47pF
R107
33.2k
C159
R283
511
GND
R393
4148
D3
1k
R394
GND
7
6
Z32B
2164
5
VL
3
2
Z1A
4
-15V
TL072
1
2
Q23
ACTION:
NO CHG TO THIS PART
SKH
RWJ 10MAY99
CHECKED BY:DRAWN BY:
RJ
10802 47th Avenue West
Mukilteo WA 98275-5098
J24-6
J29-6
2200/25
+
4004
SHEET:
3 5
HEADPHONE/PWR SUP MM 8z
of
5
LM337
102870
1B
6
-15V
C191
D37
243
4004
2200/35
4
10/16
5.11k
D35
C196
R375
C193
R356
+
2.67k
10/16
0.1
+
R376
C195
C199
GND
J24-4
J29-4
4004
D34
2200/35
C197
R377
2.67k
10/16
C194
+
+
243
C198
0.1
10/16
C192
PWR
D25
J11-3,4
CROSSFADER
CIRCUIT
ACTIVE
SHEET 2
CONTOUR
CONTROL
SHEET 1
J24-5
J29-5
2200/25
4004
+
1
1A
R374
INTERCONNECTS PASSING THRU HEADPHONE PCB
C190
+
FOR REAR TO FRONT PCB CIRCUITS
D32
REGASSY
3 2
LM317
J14-3J23-2
J7-5
J1-4
J10-1
J1-3
J1-2
J1-1
J7-2
J7-4
J7-1
J7-3
J23-1J14-5
J14-2J23-4
J14-4J33-1
J14-1J23-3
J33-2J14-6
J7-6
J10-2
SHEET 4
J21-2J14-7
J7-7 J8-2
SHEET 4 SHEET 1
J32-4
J22-2
+
Y
+15V
J5-4
J22-4
PROGRAM
RIGHT
SHEET 2
SHEET 5
J32-3
J9-3 J5-1
J9-4 J5-2
J22-1
SHEET 5
J21-3
J8-3
GND
J9-20
J32-20
SHEET 5
MASTER (R)
J32-5
J9-5
15k
15k
GND
LEVEL
4 6
R24B
10KA
5
SUM
MASTER
10KB
R286
4 6
R285
GND
5
Z30B
HEADPHONE
TL072
7
22/25
C61
22/25
GND
-15V
4
SHEET 5
CUE (R)
HEADPHONE PAN
R1B
15k
CUE
15k
CW
5
6
51.1k
R90
C60
R350
5.11k
3
2
Z25A
8
4580
+15V
1
R348
51.1
J32-1
GND
22pF
MASTER (L)
J9-1
R287
15k
R284
15k
-15V GND
1 3
10KA
C182
100k
SHEET 1
J32-6
J9-6
R292
R291
GND
4
HEADPHONE
LEVEL
R24A
CWCW
2
22/25
GND
4580
R89
J14
PROGRAM
LEFT
SHEET 1
J21-1
J8-1
MASTER
10KB
R1A
1 3
GND
3
Z30A
TL072
1
22/25
C90
C91
5.11k
5
Z25B
7
R349
51.1
J9-19
J5-3
J32-19
J22-3
SHEET 5 J32-2
CUE (L)
HEADPHONE PAN
15k
CUE
15k
2
CW
2
51.1k
8
+15V
R355
6
C183
22pF
100k
HEADPHONE
SUM
SHEET 5
J9-2
R293
R290
R112
R111
GND
GND
GND
J29-1
J9-12
J9-13
J9-14 J9-22
J9-21
J9-20
GND
SWITCH PCB
GND GND
J29-2
J10-4
J9-11
J9-19
J3-20
J4-12
J6-12
-15V
J7-12
J10-3
J9-10
J9-18
J3-15
J4-11
J6-11
-15V
J8-4
J9-9
J9-17
J3-10
J4-5
J6-6
J29-3
+15V
C5
0.1
C6
0.1
C228
0.1
C229
0.1
C235
0.1
+15V
J7-8
J7-9
J7-10
J9-7
J9-8
J9-16
J9-15
J3-5
J4-5
J6-5
H:\MM8Z\102870-4.SCH 10-May-1999
ACTION:
ADDED (2) 4.7/25 CAPS, C84& C85
RWJ 10MAY99
SKH
CHECKED BY:DRAWN BY:
RJ
10802 47th Avenue West
Mukilteo WA 98275-5098
SHEET:
4 5
MIC MM 8z
of
102870
REAR PCB
AUX MIC -
R359
511
GND
GND
20k
GND
3T
J33-1
SHEET 3
GND
4
-15V
5
4570
.33
R371
GND
4570
AUX MIC
L12
330pF
J7-4J10-1
J14-4
3
4570
511
4.7/25
Z27B
7
4
-15V
4.7/25
CW
GND
Z27A
C187
20KB
5.11k
C63
1
6
3
5.11k
J17
3T
2
R360
C94
511k
4.7/25
20k
Z29A
1
R272
46
R273
5
4570
L11
J33-4
HEADPHONE
PCB
J7-2J1-4
J14-2
8
+15V
LEVEL
R367
GND
C171
R201
2
8
+15V
C170
0.1
5
0.1
6
Z29B
7
J14-7
J7-7
SEE SHEET 3
511
511
4.7/25V
AUX MIC
1
2
3
2P2T
40.2k
BASS
C148
1k
C61
150pF
GND
AUX MIC +
R362
R368
C85
CW
1 3
50KA
R7A
2
AUX MIC
ENGAGE
S11A
330pF
R202
R26B
1.33k
CW
20KB
R211
1.33k
C17
GND
AUX MIC
ENGAGE
10k
511k
C188
.33
C189
R250
46
R251
R
R233
47pF
R346
20k
10k
5
10k
GND
R200
R22
.01
R24
22/25
D31
C184
TREBLE
R25B
C51
100
C149
4148
100k
+
1/35
4148
C1
-15V
4
5
6
2P2T
TL072
D2
D4
R1
R364
S11B
6
GND
2
Z2A
TL072
10k
OL
AUX MIC
ENGAGE
7
Z2B
C221
C60
0.1
0.1
C208
0.1
C222
0.1
FRONT PCB
C223
0.1
C224
0.1
C225
0.1
C226
0.1
C227
0.1
+15V
-15V
-15V
MIC PCB
MIC
SHLD
4
J15
1
2
3
+
-
L14
L13
3T
3T
C58
330pF
8
+15V
511k
ST1
1
2
3
2P2T
R370
S10A
J26-2
J29-2
511
511
4.7/25V
MAIN MIC
LEVEL
MAIN MIC
ENGAGE
GND
6
Z28B
TL072
J26-1 J29-1
R366
R365
C84
1 3
2
5
7
J26-3
J29-3
J14-5
J1-1J7-5
J23-1
GND
REAR PCB
GND
20k
GND
20k
GND
-15V
HEADPHONE
SHEET 3
PCB
R199
20k
GND
GND
4570
R372
R113
2
TL072
22/25
301
MAIN MIC
LOOP
4
-15V
5
.33
4.7/25
Z28A
1
J14-6
J10-2J7-6
J33-2
4570
511
4.7/25
Z26B
C95
R373
J18
3
2
Z26A
1
R369
C158
6
7
C186
GND
C169
3
84
+15V
1 3
R25A
20KB
2
1 3
R26A
20KB
2
-15V
R27
20kR810k
3
R361
100
+15V
84
22/25
C55
1
GND
R21
R
D1
MAIN MIC
ENGAGE
R
MAIN MIC
D30
LEVEL
4
5
6
2P2T
S10B
R232
10k
R344
200k
5
R345
200k
GND
50KA
GND GND
C209
0.1
J28-5
J28-11
C210
0.1
C218
0.1
C219
0.1
C220
0.1
GND
+15V
1
3T
J23-2
1413121110
J32-14 J32-24
GND
2423222118
MAIN MIC
J16
2
3
+
-
L10
3T
C62
330pF
J23-3
J32-13
J32-23
REAR PCB
L9
SHEET 3
J7-1J1-3
J7-3J1-2
J14-1
J14-3
R363
511
CW
C185
47pF
R6A
GND
J14-10
GND
J32-10
J32-11
J32-12
J32-22
J32-21
J32-18
HEADPHONE
PCB
J14-9
J25-11
9
J32-9
17
J32-17
-15V
J14-12
J25-5
8
J32-8
16
J32-16
J14-8
7
J32-7
15
J32-15
+15V
H:\MM8Z\102870-5.SCH 10-May-1999
GND
20k
CUE 4
2878
51.1k
R156
Q8
51.1k
SEE SHEET 2
HPCUE4R
R321
20k
GND
R325
CUE 3
2878
Q7
SEE SHEET 2
HPCUE3R
51.1k
R155
51.1k
R320
R324
GND
20k
2878
CUE 2
R154
Q6
SEE SHEET 2
HPCUE2R
R319
51.1k
GND
R323
51.1k
20k
CUE 1
2878
R153
51.1k
Q5
51.1k
SEE SHEET 2
HPCUE1R
R318
20k
GND
2878
R322
51.1k
R198
Q16
51.1k
SEE SHEET 1
HPCUE4L
R337
20k
GND
2878
R341
51.1k
R197
Q15
51.1k
SEE SHEET 1
HPCUE3L
R336
20k
GND
2878
R340
51.1k
R196
Q14
51.1k
SEE SHEET 1
HPCUE2L
R335
20k
GND
2878
R339
51.1k
R195
Q13
51.1k
SEE SHEET 1
HPCUE1L
2k
R334
20k
GND
2878
R338
SEE SHEET 2
SEE SHEET 1
MTCUE4L
MTCUE4R
R313
R317
2k
R329
51.1k
R194
GND
Q12
R333
51.1k
SEE SHEET 2
MTCUE3R
R312
2k
2k
R193
20k
Q11
2878
SEE SHEET 1
MTCUE3L
R316
R328
51.1k
GND
R332
51.1k
SEE SHEET 2
MTCUE2R
R311
2k
2k
51.1k
R192
20k
Q10
2878
51.1k
SEE SHEET 1
MTCUE2L
R315
2k
R327
20k
GND
2878
R331
SEE SHEET 2
SEE SHEET 1
MTCUE1L
MTCUE1R
R310
R314
2k
R326
51.1k
R191
Q9
51.1k
R330
GND
TL072
SHEET 3
+15V
GND
ACTION:
ADDED R85, 511 OHM
SKH RJ
RWJ 10MAY99
CHECKED BY:DRAWN BY:
10802 47th Avenue West
Mukilteo WA 98275-5098
SHEET:
5 5
OUTPUTS MM 8z
of
102870
RIGHT HEADPHONE
CUE SUMMER
5
6
Z23B
100k
R88
7
+0dB
J32-1
J9-1
GND
GND
3.3/16
+8dB
+5dB
+1dB
+3dB
D17
Y
9 10
R
D27RD16
Y
D26
6
7
8
PROGRAM
METER
MONO
11121314151617
D15
Y
0dB
D34
D6
G
GD5G
-5dB
-3dB
-1dB
+15V
FRONT PCB
GND
3
Z23A
C180
SHEET 3
J9-19
J9-20
(R)
(L)
19J32-19
20J32-20
R221
124k
R231
124k
GND
5
6
Z24B
R149
+15V
TL072
MONO PGM
7
123
2P2T
10k
MASTER
RIGHT
R83B
20KA
LEVEL
GND
4 6
J32-5
5
R222
51.1k
J9-5
R MSTR
S1A
SHEET 3
R378
R342
200k
500
GND
R219
51.1k
22/25
C59
R218
10k
+
+15V
+3dB
4
-15V
+5dB
TL072
1
J32-2
J9-2
SHEET 3
GND
+8dB
GND
D28
R
Y
D29
Y
D20
47.5k
R31
1
2
3
4
5
PROGRAM
BA682A
RIGHT
METER
OR
G
-7dB
D25GD32GD33
-15dB
-10dB
REAR PCB
GND
2059
GND
22/25
20k
Z30
G
-20dB
18
D7
+15V
HEADPHONE
SHEET 3
PCB
J5-2J9-4
J22-2J32-4
22/25
C37
8.06k
R127
R128
6.34k
GND
3
5
6
C114
47pF
Z16B
R129
10k
7
C39
R294
100
GND
R140
MAIN OUTPUT
47pF
RIGHT
4.75k
J6
C113
R124
100
-15V
R295
GND
2059
22/25
20k
2
Z16A
411
+15V
1
C38
+10dB
R130
D19
GND
7
8
9 10
11121314151617
Y
-3dB
-1dB
0dB+1dB
CUE 3
CUE 4
S13A
2P2T
123
S14A
2P2T
123
S15A
2P2T
123
S16A
2P2T
123
R85
511
+15V
6
METER
2
R
CUE
D11GD12GD13GD18
-5dB
CUE 2
8
+15V
GND
MONO
+15V
+0dB
3.3/16
OR
G
100k
10k
+
C181
5
METER
D10
-7dB
CUE 1
LEFT HEADPHONE
CUE SUMMER
R110
500
GND
51.1k
R227
4
PROGRAM
LEFT
-10dB
Y
D21
Y
D22
Y
D23
Y
D24
R347
5.11k
5.11k
5.11k
5.11k
R228
GD9G
GND
3
GND
47.5k
D8
-15dB
R351
R352
R353
R354
22/25
200k
C89
R343
GND
0.1
0.1
R36
2
BA682A
D14
G
-20dB
+15V
30.1k
C49
GND
3
Z24A
4
-15V
TL072
1
+0dB
+15V
+15V
456
MONO CUE
R357
5.62k
R358
C57
1
2222
2P2T
2
31
Q17
+15V
Z31
18
+15V
REAR PCB
GND
10
Z16C
2059
22/25
20k
GND
6.34k
2
S1B
8
8
+15V
C69
R182
GND
L MSTR
R170
9
10k
100
8.06k
CWCW
R230
51.1k
SHEET 3
PCB
GND
47pF
R171
R299
GND
R109
LEVEL
1 3
HEADPHONE
22/25
8.06k
C120
MAIN OUTPUT
MONO CUE SUMMER
R83C
20KA
MASTER
7
8
GND
LEFT
J32-6
R83A
20KA
2
J9-6
SHEET 3
J32-3 J5-1
J9-3
J22-1
C67
R169
13
C119
47pF
Z16D
R166
4.75k
22/25
R300
100
20k
GND
J7
LEFT
14
R172
12
2059
+10dB
C68
-15V
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