POWER AMPS
Section:
Product(s):
Amps.SCHDOC
M2256
2
3
Sheet
Of
PCB#:
Rev#:
Modified:
V01
File:
2022-08-17
NX55P-2
T. Wood
Eng:
CDSF4148
D1005
D5
2K21
0805
R16
2K21
0805
R24
FROM POWER SUPPLY
22V0
SOT-23
D8
W2:4
W2:8
W1:7
W1:6
W1:3
W1:2
W1:1
1M
0805
R20
2K21
0805
R13
ES1J
DO-214AC
D17
47K
0805
R14
22R
1206
R23
16V0
SOT-23
MURS360B
SMB
D10
63V
100N
RAD .2in
C91
0805
C50
W2:2
W2:1
W2:3
W2:6
W2:7
W2:5
6K80
0603
R51
6K80
0603
R56
W1:5
W1:9
W1:8
W1:4
12V0
SOD-323
D4
10K0
0805
R10
63V
100N
RAD .2in
C56
0805
63V
100N
RAD .2in
C48
0805
C47
6K80
0603
R59
0603
C37
499R
0805
R48
39K
1210
R35
10R
1206
R73
63V
100N
RAD .2in
C44
63V
100N
RAD .2in
C41
10R
1206
R64
1K0
0805
R54
RAD .2in
C36
4K75
0805
R32
4K7
0805
R52
499R
0805
R49
41K2
0805
R80
1M
R47
47R
0805
R43
0805
0805
C8
MMBTA92
8165
BC857C
SOT23
Q5
M
M
B
T
3
9
0
6
L
T
1
7805
0805
C15
18K2
0805
R38
187K
0805
R33
100K
1206
R25
M
M
B
T
3
9
0
6
L
T
1
SOT23
3K92
0805
R5
499R
0805
R184
30V
SOD123
D19
1206
C24
22R
1206
R37
25V
68U
C4
22K
0805
R1
18V0
SOD-323
ZD1
499R
0805
270R
0805
270R
0805
R9
AIKW50N65DF5
T0247
2511
Q15
187K
0805
R41
12V0
SOD-323
D11
22R
1206
R6
12V0
SOD-323
D1
1000V
R
C89
340V
3U3
RAD POLY
C51
16V0
D9
0R47
2512
R17
140V
3U3
RAD POLY
C31
140V
3U3
RAD POLY
C20
0R47
2512
R18
MURS360B
SMB
D3
RAD .2in
C118
C71
MMBT3904
7838
Q4
LM311
SO8
7851
U1
15K0
0805
R30
4K75
0805
R28
10K0
0805
R22
MC33078
0805
C77
1210
C3
1206
C34
4X4mm
C35
1R0
1206
R46
30V
SOD123
D15
200V
SOD-323
D6
1206
1210
C9
2K21
0805
R3
1M
0805
R57
10R
1206
R39
270R
0805
R15
0805
C5
0805
C14
10R
1206
0R47
2512
R11
0R47
2512
R12
0R02
OARS
R42
2R4
1206
R186
#7461
1" 8R
40W
1K0
0805
R19
0805
C92
100R
0805
R44
Horn+
YEL
W8
0805
C58
0805
C57
0805
C49
+/-15V_MOD
1K0
0805
R55
6K80
0603
R45
0603
C28
10K0
0805
R36
41K2
0805
R79
10K0
0805
0805
C29
MC33078
4K75
0805
R72
10R
1206
R53
22R
1206
R50
4X4mm
C25
MMBTA92
8165
Q24
ES1J
DO-214AC
D47
15K0
0805
R40
CDSF4148
D1005
D21
BC857C
Q6
18K2
0805
R21
12V0
SOD-323
D7
1206
C144
270R
0805
140V
3U3
RAD POLY
C22
L1
AIKW50N65DF5
T0247
2511
2K21
0805
R26
63V
10U
RAD .2in
C13
IRFP9140N
TO247
6932
Q1
BDX53C
TO220
6912
Q2
2K21
0805
R2
0805
C
1
6
BLK
Horn-
W7
RAD .2in
C32
63V
10U
R
A
D
C7
FROM INPUT PCB
PHANTOM SUPPLY
10K0
0805
R34
18K2
0805
R213
LM311
SO8
7851
U7
MC33078
7817
499R
0805
R62
1206
C12
63V
2U2
RAD .2in
C11
6668
LTV-8141S
4PIN SMT
U4:2
4K75
0805
R76
0603
C10
10R
1206
R215
Q3
100R
0805
R27
BDX54C
6911
Q10
0805
C1
63V
10U
RAD .2in
C2
TO247
6931
Q12
W
O
O
F
E
R
6
6
6
8
L
T
V
-8
1
4
1
S
4
P
IN
S
M
T
U
4
:1
HORN
U3
WOOFER AMP
SILENT ON/OFF
SILENT ON/OFF
HORN AMP
+51V_
+27V_
+15V_
-15V_
+27V_
+15V_MOD
+15V_MOD
-15V_MOD
-15V_MOD
+15V_MOD
+15V_MOD
+15V_
-15V_
-15V_MOD
-51V_
+51V_
-26V_
-177V_
+177V_
+26V_
+15V_
+15V_MOD
-15V_
-15V_MOD
+15V_MOD
-15V_MOD
-15V_MOD
+15V_MOD
-15V_MOD
+15V_MOD
-15V_MOD
+15V_LS
+15V_LS
-177V_
+177V_
-51V_
-26V_
+26V_
+51V_
LVGND_
LVGND_
PSGND_
PSGND_
WOOFGND
LVGND_
WOOFGND
WOOFGND
WOOFGND
WOOFGND
WOOFGND
PSGND_
HORNGND_
HORNGND_
WOOFGND
WOOFGND
HORNGND_
HORNGND_
PSGND_
HORNGND_
SILENT_
TP1
TP2
Woofer-
BLK
W3
RED
W5
CDSF4148
D1005
D28
4K75
0805
R29
POWER AMPS
PSGND_
63V
180N
RAD .2in
C156
-36VDC
+15V_LS
-177V_
8211
SMD8B
0805
C236
1206
C237
1210
C238
13K
0805
R263
1K62
0805
R264
7974
1000UH
L202
DO-214AC
ES1J
D208
M
U
R
A
2
4
0
403D
D210
MURA240
403D
D211
330R
R265
2U2
250V
1210
C241
PSGND_
+15V_LS
DO-214AC
ES1J
D212
N1017
N1018
N1019
N1020
N1021
N1022
N1023
N1024
N
1
0
2
5
N1026
N1027
N1028
N1029
N1030
N1031
N1032
N1033
N1034
N1035
N1036
N1037
N1038
N1039
MJD340
7022
Q11
41K2
0805
R61
41K2
0805
R67
J110
Q9
J110
Q20
2K21
0805
R145
2K21
0805
R146
2K21
0805
R147
2K21
0805
R75
2K21
0805
R98
2K21
0805
R128
2K21
0805
R69
10R
1206
10R
1206
10R
1206
R219
10R
1206
R220
10R
1206
10R
1206
10R
1206
10R
1206
R224
-
-
x 4
x 4
22R
1206
R261
22R
1206
R260
2R4
1206
R267
2R4
1206
R269
47R
0805
R268
SOD-323
15V0
D20
SOT-23
43V0
D23
PSGND_
WOOFGND
PSGND_
1206
619K
R270
2K21
0805
R148
R281
R280
R282
100K
1206
R60
T810-600G-TR
7915
D2PAK
10U
5X7MM .2in
16V
C54
MBS4992
5190
{Voltage}
Q18:1
10R
1206
R63
486uH
2906
L2
C
4
6
1206
CON_HOLE_128
HC1
CHGND-Cap
1206
C52
W
_
In
+
W
_
In
-
H_In+
Spkr
W4:1
Spkr
W4:2
Spkr
W4:3
Spkr
W4:4
63V
4U7
4X7MM .2in
C110
MC7815CT
U30
6872
RAD .2in
C109
MC7915CT
U31
6871
63V
4U7
4X7MM .2in
C103
63V
100N
RAD .2in
C116
-15V_
+15V_
SOD80
PMLL4148
D16
SOD80
PMLL4148
D18
+26V_
-26V_
PSGND_
WOOFCLIP_
PSGND_
PSGND_
HEATSINK
-15V_
TP3
R31
-177V@Q15C
Wout@Q14C
100K
1206
R58
100K
1206
R65
100K
1206
R66
TP2
TP1
270R
0805
R68
270R
0805
R70
270R
0805
R74
-51V_
-51V_