Product
Date:
Filename:
PCB#
of
Sheet
Rev:
4
1
V09
M1231V09SCH.sch2006
NX750P
Wed
June
09
,
2021
M1231
NX750P
B
A
+15V
-15V
*
*
IGND
4148
D42
+24V
-15V
+15V
*
1
/4
W
1K2
R102
MINI
*
-15V
+15V
B
+15V
-15V
A
-15V
+15V
+15V
1
/4
W
1K5
R107
RAD
+15V
C82
63V
470N
R189
1/4W
MINI
10K0
IGND
R203
1/4W
MINI
1K0
IGND
+15V
-15V
+15V
R225
1/4W
RAD
3K3
LVGND3
C64
100V
27N
LVGND4
4148
D44
4148
D25
LVGND1
BASS
LVGND2
LVGND4
R131
1/4W
RAD
4K7
NET00039
-15V
2K5 NOTCH
LVGND4
-15V
LVGND1
4148
D37
R104
1/4W
MINI
1K0
-15V
+15V
-15V
LVGND1
LEDGND
HLIM
TO POWER AMP PCB
LVGND
3925
J4
.
MIC INPUT
3925
J2
.
1
2
3
4100
J1
R205
1/4W
MINI
10K0
C107
50V
22U
IGND
R167
1/4W
MINI
10K0
R170
1/4W
MINI
10K0
1
/4
W
18K
R149
RAD
LVGND2
1
/4
W
62K
R148
.
U24:A
NE5532N
R126
1/4W
RAD
1K
R113
1/8W
FLMP
475R
1
/4
W
1M
R108
RAD
R93
1/8W
FLMP
475R
B
50V
C138
33P
R190
1/4W
MINI
1K0
50V
C129
33P
LVGND3
R182
1/4W
0.1%
562R0
LVGND3
IGND
R133
1/4W
MINI
1K0
R134
1/4W
MINI
1K0
R114
1/4W
RAD
10K
C76
100V
100N
IGND
R94
1/4W
RAD
10K
C65
100V
100N
+15V
-15V
LVGND4
R191
1/4W
MINI
10K0
LVGND3
C99
16V
33U
R172
1/4W
MINI
1K0
U24:B
NE5532N
8
V
+
4
V
-
U24:C
-15V
+15V
C78
63V
330N
R92
1/4W
0.1%
681R0
R177
1/4W
MINI
15K
non-RoHS
WLIM
4148
D43
1
/4
W
27K
R116
RAD
-15V
+15V
-15V
R223
1/4W
MINI
3K
1
/8
W
75R
R201
FLMP
LVGND3
C95
100V
100N
R214
1/4W
RAD
470R
R132
1/4W
.
499R
R127
1/4W
RAD
470R
M
B
P
1
:A
4
4
3
4
1
0
K
M
A
S
T
E
R
_
G
A
IN
U17:A
NE5532N
1
/4
W
30K
R179
RAD
R169
1/4W
MINI
6K8
LVGND2
X3
NET00011
NET00011
R119
1/4W
MINI
270K
MASTER
CLIP
+15V
-15V
R180
1/4W
RAD
2K
WOOFCLIP
-15V
R136
1/8W
FLMP
475R
4148
D35
4148
D31
TO92
MPSA13
Q21
5105
R120
1/4W
RAD
33K
+15V
L2
CLIP
RED
6405
8
V
+
4
V
-
U18:C
R206
1/4W
RAD
220R
LVGND1
-15V
100V
C131
100N
+15V
UP
Alternate
S
3
:A
3
5
2
2
S
UB
I
N/
O
UT
DO
W
N
C79
63V
330N
1
/4
W
1K5
R91
RAD
R210
1/4W
MINI
1K2
LVGND4
50V
C132
100N
100V
C133
100N
4
3
NSL-32SR2
U15:B
6858
R124
1/4W
MINI
2K
1
/4
W
47K
R204
MINI
100V
C135
100N
LVGND1
R96
1/2W
.
442R
1
/4
W
180R
R100
.
-15V
LVGND
100V
C137
100N
C75
NET00039
C69
100V
68N
+15V
LVGND1
C59
100V
68N
R139
1/4W
RAD
33K
R118
1/4W
RAD
27K
4148
D27
100V
C61
33N
LVGND4
1
/4
W
1K4
R202
.
4148
D63
K1:B
1N5250B
20V0
D13
0W5
D39
0A2
BAT85
BAT85
D40
0A2
LIMITER
R117
1/4W
MINI
10K0
C148
100V
27N
R147
1/8W
FLMP
249R
R144
1/4W
.
180R
C145
100V
18N
U12:A
NE5532N
8
V
+
4
V
-
U27:C
U27:B
NE5532N
+15V
C3
0
1
6
V
1
0
U
1
/4
W
1K0
R101
MINI
R99
1/8W
FLMP
681R
LVGND1
1
/4
W
20K0
R143
MINI
1
/4
W
1K5
R164
RAD
+15V
LVGND1
R123
1/4W
MINI
470R
R2
2
2
1
/4
W
M
IN
I
4
7
K
4148
D34
HORN
LIMITER
CONTROL
HORNGND
R85
1/8W
FLMP
681R
1
/4
W
47K
R163
RAD
1
/4
W
1K5
R153
RAD
L3
LIMIT
YEL
6400
LVGND2
LVGND
100V
C70
100N
IGND
C98
50V
22U
1
/4
W
1M
R103
RAD
1
/4
W
10K
R109
RAD
1
/4
W
2K49
R185
MINI
R174
1/4W
0.1%
562R0
8
V
+
4
V
-
U32:C
MIC GAIN
R110
1/4W
0.1%
681R0
1
/4
W
47K
R197
RAD
C97
16V
33U
1
2
NSL-32SR2
U23:A
6858
C85
100V
100N
R111
1/4W
0.1%
562R0
C128
16V
33U
R224
1/4W
MINI
3K
C23
16V
10U
4
3
NSL-32SR2
U23:B
6858
1
/4
W
1K
R184
RAD
1
/4
W
10K
R188
RAD
1
/4
W
15K
R156
MINI
4148
D62
1
/4
W
4K99
R145
MINI
8
V
+
4
V
-
U21:C
1
/4
W
15K
R135
MINI
100V
C119
100N
100V
C66
3N3
R192
1/4W
RAD
4K7
100V
C121
100N
50V
C120
100N
R125
1/4W
.
3K57
U14:B
NE5532N
8
V
+
4
V
-
U14:C
+15V
R194
1/4W
.
332R0
100V
C125
100N
R121
1/4W
RAD
27K
8
V
+
4
V
-
U13:C
1
/4
W
1K07
R176
0.1%
U
P
Alternate
S
5
:A
3
5
2
2
M
IX
E
R
I
N
/O
U
T
D
O
W
N
C87
50V
22U
R97
1/4W
MINI
1K8
U19:B
NE5532N
R122
1/4W
MINI
10K0
R90
1/4W
.
301R
U20:A
NE5532N
6V2
D33
1N753ARL
0W5
R87
SOLID
22AWG
1
/4
W
2K
R146
RAD
8
V
+
4
V
-
U20:C
C7
7
6
3
V
1
0
0
N
1
/8
W
681R
R86
FLMP
L4
POWER
GRN
6408
1
/4
W
1K0
R130
MINI
TO92
MPSA06
Q22
5103
LEDGND
M
B
P2:A
4432
10K
MIC_GAIN
8
V
+
4
V
-
U12:C
C83
63V
470N
C62
100V
100P
-15V
LVGND2
R115
1/4W
RAD
1M
C60
100V
22N
D32
0A2
BAT85
D29
0A2
BAT85
C146
100V
27N
LIMITER SENSE
9
W6:I
9
8
W6:H
9
7
W6:G
9
+24V
2
W6:B
9
1
W6:A
9
R209
1/4W
MINI
10K0
R196
1/4W
MINI
10K0
1
/4
W
10K0
R207
MINI
C126
16V
33U
MIXER SECTION
1
/8
W
75R
R178
FLMP
R181
1/8W
FLMP
249R
50V
C108
1N
8
V
+
4
V
-
U28:C
U28:A
NE5532N
R171
1/4W
RAD
47K
R168
1/4W
MINI
220R
C94
50V
22U
WOOFER
LIMITER
CONTROL
LVGND2
100V
C86
68N
4148
D30
C73
100V
100P
4148
D26
8
V
+
4
V
-
U17:C
FROM MIXER
R95
1/4W
0.1%
562R0
8
V
+
4
V
-
U16:C
U16:B
NE5532N
MAIN INPUT
R200
1/4W
RAD
10K
8
V
+
4
V
-
U33:C
U33:A
NE5532N
R199
1/4W
MINI
1K0
R160
1/4W
RAD
4K7
R195
1/4W
RAD
10K
U29:A
NE5532N
+15V
C96
100V
68N
1
/4
W
4K7
R159
RAD
U21:A
NE5532N
1
/4
W
324R0
R142
0.1%
U22:A
NE5532N
8
V
+
4
V
-
U22:C
R112
1/4W
MINI
1K8
100V
C74
100N
U18:B
NE5532N
R211
1/4W
MINI
1K2
M
B
P
5
:A
4
4
3
4
1
0
K
T
R
E
B
L
E
C130
100V
47P
R198
1/4W
MINI
470K
C139
16V
33U
C127
100V
47N
3696
K1:A
LVGND3
100V
C134
100N
UP
Alternate
S
3
:B
3
5
2
2
S
UB
I
N/
O
UT
DO
W
N
C80
63V
330N
4148
D38
U22:B
NE5532N
C68
100V
68N
1
/4
W
1K8
R106
MINI
1
/4
W
6K04
R84
.
U14:A
NE5532N
R
2
1
8
1
/4
W
M
IN
I
1
K
0
+15V
TO92
2N5401
Q16
5108
R217
1/4W
RAD
18K
R140
1/4W
RAD
10K
R1
2
9
1
/4
W
R
A
D
3
3
K
LVGND1
8K NOTCH
3K9 NOTCH
U13:B
NE5532N
1
2
NSL-32SR2
6858
U15:A
non-RoHS
+15V
-15V
4
W6:D
9
5
W6:E
9
6
W6:F
9
3
W6:C
9
U32:A
NE5532N
R173
1/8W
FLMP
249R
50V
C101
1N
R175
1/4W
MINI
2K49
100V
C67
470P
100V
C72
470P
U16:A
NE5532N
LINE GAIN
U32:B
NE5532N
M
B
P4:A
4432
10K
LINE_GAIN
1
/4
W
47K
R154
RAD
8
V
+
4
V
-
U29:C
U29:B
NE5532N
1
/4
W
56K
R152
.
300HZ NOTCH
63V
C84
150N
TRIM
/GAIN
U21:B
NE5532N
R88
1/8W
FLMP
820R
TREBLE
R193
1/4W
RAD
4K7
U33:B
NE5532N
400V
C140
2N2
M
B
P
3
:A
4
4
3
5
5
0
K
B
A
S
S
100V
C122
100N
1
/4
W
20K0
R137
MINI
U19:A
NE5532N
8
V
+
4
V
-
U19:C
LVGND1
U13:A
NE5532N
U
P
Alternate
S
5
:B
3
5
2
2
M
IX
E
R
I
N
/O
U
T
D
O
W
N
C88
63V
2U2
U20:B
NE5532N
R8
9
1
/4
W
4
7
0
R
C147
100V
47N
R157
1/4W
RAD
10K
WOOFCLIP
SILENT MIXER ON/OFF
RING
.
J
5
TO MAIN INPUT
U28:B
NE5532N
U27:A
NE5532N
U17:B
NE5532N
U12:B
NE5532N
U18:A
NE5532N
RING
.
J
6
RING
.
J
3
RING
.
J
7
Summary of Contents for TWO Series
Page 3: ......
