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1
2
3
POWER AMPS
A
+15V
PHANTOM SUPPLY
+15V_MOD
+51V
B
C47
C48
C49
63V
63V
63V
100N
100N
100N
R10
RAD .2in
Q4
RAD .2in
RAD .2in
4K7
C55
WOOFGND
C7
63V
D4
C56
C57
2N5551
100N
63V
63V
27V0
TO92
RAD .2in
10U
100N
100N
1N5254B
5107
63V
RAD .2in
RAD .2in
0W5
+27V
C
-15V_MOD
-15V
LVGND
FROM INPUT PCB
1
W1A
9
N1017
D
LVGND
2
W1B
9
N1018
3
W1C
9
N1019
SILENT ON/OFF
+15V
4
HORNGND
W1D
9
R19
N1020
SILENT
1/4W
5
W1E
9
2K2
N1021
+27V
D8
-15V
E
6
W1F
9
N1022
1N5251BRL
22V0
N1023
7
WOOFCLIP
W1G
9
8
N1024
W1H
9
9
LVGND2
W1I
9
F
+15V_MOD
R30
W250
15K
R35
MINI
+15V_MOD
39K
MINI
8
2
U1
+
LM311
V+
OUT
G
V-
6640
3
-
DIP08
4
R48
470R
R51
-15V_MOD
6K8
WOOFGND
C28
470P
100V
R45
H
1/4W
6K8
+15V_MOD
C32
63V
2
R56
4
U6E
U6B
220N
6K8
6
MC33079P
MC33079P
RAD .2in
-
V+
R54
R55
7
3
W250
W250
5
V-
1K0
1K0
6804
6804
+
MINI
MINI
11
C37
R59
I
C36
470P
6K8
100V
100V
47N
-15V_MOD
RAD .2in
WOOFGND
J
K
1
2
3
4
5
6
7
FROM POWER SUPPLY
+15V
+/-15V_MOD
8
8
+15V_MOD
+15V
W2H
N1026
+177V
R64
7
8
W2G
C53
C50
N1038
1/8W
N1027
C21
63V
63V
63V
10R0
6
100N
100N
W2F
8
100N
C41
RAD .2in
RAD .2in
N1028
RAD .2in
63V
5
100N
W2E
8
RAD .2in
N1029
4
PSGND
8
-15V_MOD
W2D
WOOFGND
LVGND
N1030
+51V
C58
3
C26
63V
C44
8
W2C
63V
100N
63V
R73
N1031
-51V
100N
RAD .2in
100N
1/8W
2
RAD .2in
RAD .2in
W2B
8
N1039
10R0
N1032
N1033
1
-15V
W2A
8
-15V
HORNGND
-36VDC
SILENT
R13
1/4W
2K2
D5
1N4148
R20
1/4W
-15V
1M
C12
1U
2U2 C11
R22
R29
63V
63V
10K
D28
4K7
4X7MM .2in
1N4148
3
FOD816
4
U4B
LVGND
2306
R36
PSGND
Q20
D
W250
2N5638
10K0
TO92
MINI
5119
+15V_MOD
C18
S
100V
680P
-15V_MOD
+15V_MOD
R32
WOOFGND
4K7
8
R28
SILENT ON/OFF
7
6
-
1/4W
MC33078P
MC33078P
V+
7
4K7
6840
6840
U2C
U2B
V-
5
+
R34
R49
4
10K0
MINI
470R
-15V_MOD
WOOFGND
C29
R43
1N
1/4W
50V
47R
R47
BEAD
U6A
1/4W
MC33079P
1M
-
C156
U6C
R52
1
9
MC33079P
-
W250
10K0
8
6804
+
100V
MINI
82N
10
6804
RAD .2in
+
R62
470R
R212
10K
MINI
WOOFGND
R213
18K
MINI
-15V_MOD
4
5
6
7
8
9
10
C237
1U
63V
PSGND
RAD .2in
D208
R264
R263
W250
W250
1K87
15K0
D210
4007
.
MINI
C236
1000V
4007
100N
1000V
C238
4U7
R265
50V
BEAD
63V
PSGND
330R
4X7MM .2in
-177V
R127
L202
.
10K
.
S 1
+26V
R105
5
S 2
3302
D
10K
S 7
1000UH
10MMDIA
-26V
.
LNK302P
8
S
D211
4U7
6846
U207
C239
63V
UF4004
PSGND
DIP-8
4X7MM .2in
200V
2U2
250V
RAD 0.1in
+15V_LS
-177V
C91
C71
100V
100V
100N
680P
RAD .2in
C92
PSGND
3N3
100V
RAD .2in
Q5
C144
10N
100V
BC560C
Q7
RAD .2in
TO92
5102
C8
R21
Q9
D
18K
2N5638
2N5401
680P
MINI
D7
TO92
TO92
100V
5108
0W5
5119
1N5242B
S
12V0
HORNGND
Q19
5114
MPSA92
ZD2
R33
TO92
1/4W
1W0
180K
1N4757
56V0
R38
C15
R71
50V
18K
180K
1N
BEAD
WOOFGND
WOOFER AMP
-177V
+15V_MOD
-15V_MOD
R40
4
3
U7
4K7
+15V_LS
-
LM311
V-
OUT 7
U3A
Q24
7
HO 12
V+
6640
2N5401
VCC
2
+
TO92
VB 13
DIP08
5108
8
IRS21844
VS 11
1
IN
D47
2
SD
BAV21
6586
4
DT
+15V_MOD
R72
COM 5
WOOFGND
1K5
LO 6
3
14
VSS
NC
R76
150P
C77
1K5
100V
RAD CER .2in
-177V
R80
R79
1/2W
1/2W
82K
82K
8
9
10
11
12
13
+15V_LS
U6D
U2A
13
MC33079P
2
MC33078P
D212
-
-
14
1
4007
6840
12
6804
3
1000V
+
+
R60
R63
470R
470R
WOOFGND
WOOFGND
R1
C241
1/4W
D1
22K
CER
C1
R3
0W5
R5
2K2
1N5242B
100V 330P
3K9
.
12V0
R4
C3
R6
2W00
63V
2K2
1/4W
4U7
.
R8
R9
11R
R7
10K
2K2
680R
Q3
HORNGND
C5
63V
R15
C4
100N
BC550C
R219
RAD .2in
270R
TO92
25V
1/4W
5101
68U
470R
C6
10P
500V
R14
RAD
Q6
W250
47K
R16
Q8
BC560C
2K2
TO92
R23
5102
1/4W
11R
C9
2N5401
C10
TO92
4U7
5108
63V
D6
15P
D11
BAV21
100V
Q11
0W5
D21
TO126
HORNGND
1N5242B
MJE340
12V0
6873
1N4148
C14
R27
R25
R24
330P
100R
100V
100K
2K2
CER
+177V
Q14
IRGP20B60PDPBF
2373
R37
T0247
1/4W
22R
D15
R39
1/4W
0A2
BAT85
30V
11R
R41
180K
D17
C25
C24
63V
ZD1
UF4004
63V
1U
0W5
100N
RAD .2in
1N5248B
RAD .2in
R46
18V0
1R
R215
+15V_LS
2W00
2R
R216
.
2R
.
Q15
IRGP20B60PDPBF
T0247
2373
R50
C89
1/4W
D19
22R
1000V
1N
1/4W
0A2
R53
BAT85
11R
C35
30V
C34
63V
R57
63V
1U
1M
100N
RAD .2in
RAD .2in
-177V
11
12
13
14
15
16
17
HORN AMP
+51V
Q12
D
IRFP140N
R2
N
G
TO247
1/4W
6931
2K21
S
D2
+26V
C2
D3
63V
10U
1N5246B
RAD .2in
MR854
16V0
400V
0W5
Q2
BDX53C
TO220
6912
TP1
R11
R12
0R47
0R47
Horn+
N1035
W8
C118
YEL
R17
R18
400V
0R47
0R47
2N2
+
TP2
S1
RAD .2in
#7461
R220
1" 8R
6R2
Q10
40W
-
HORN
BDX54C
Horn-
6911
W7
N1034
BLK
D10
D9
C13
63V
MR854
HORNGND
-26V
1N5246B
400V
10U
16V0
RAD .2in
0W5
Q1
R26
1/4W
IRFP9140N
TO247
2K21
6932
-51V
C20
140V
3U3
RAD POLY
C51
340V
3U3
RAD POLY
C22
140V
L1
3U3
RAD POLY
R44
1/8W
233UH
100R0
1
2306
3786
R42
100N
C16
2
0R02
63V
U4A
RAD .2in
FOD816
N1036
Woofer-
W3
C31
BLK
140V
3U3
S2
RAD POLY
#7455
12" 4R
450WPGM
WOOFER
N1037
Woofer+
RED
W5
PSGND
POWER AMPS
Section:
NX55P-2
Product(s):
PCB#:
M1555
Rev#:
V05
EML Rev#:
05
Sheet
4
Of
7
Modified:
2017-06-22
File:
Amps.SCHDOC
Tmp Rev:
V028
14
15
16
17
A
B
C
D
E
F
G
H
I
J
K
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