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M1159A.PCB_DATABASE_HISTORY
MODEL(S):-
NX520P
#
DATE
VER#
DESCRIPTION OF CHANGE
1
JAN/21/2002
4.10
CORRECTION R121 100K TO 27K
2
FEB/13/2002
&V4.00
CHANGE R149 FROM 33K TO 27K AND
3
D
V
R135 FROM 75K TO 15K, ALSO INVERTED
4
D
V
OUTPUT POLARITY OF HORN AND WOOF.
5
MAR/27/2002
V4.10
CHANGE R79 6K98 TO 1K0, R52 10K0 TO
6
D
V
1K4, R208 3K TO JUMPER, R204 3K TO 47K
7
D
V
R206 1K T0 220R, C140 1N5 TO 2N2 AND
8
D
V
C91 FROM 680P TO 100N.
9
D
V
N
10
D
V
N
11
D
V
N
12
D
V
N
13
D
V
N
M1159A.PCB_DATABASE_HISTORY
MODEL(S):-
NX520P
#
DATE
VER#
DESCRIPTION OF CHANGE
1
AUG 22 2001 2.00
1st RUN CHANGES FOR VER.2.00
2
D
V
SEE ATTACHED NOTES ON DATA BASE.
3
SEPT 18 2001 2.00
CHANGE R28 FROM 10K TO 4K7 AND R34 FROM 33K TO 47K
4
SEPT 20 2001
2.10
PC#6453 R39 6R2 TO 2R2
5
OCT 22 2001 3.00
REPOUR CHASSIS GROUND FOR CSA STANDARD 4mm CLEARANCE.
6
D
V
ADD COPPER POURS UNDER ALL OUTPUT DEVICES.
7
NOV 06 2001
3.10
PC#6464 R37 75R TO 150R PC#6469 R130 4K7 TO 2K
8
NOV 29 2001
4.00
MOVED TRACES UNDER 1/4" JACKS #3921
9
.
&V4.10
MOVE R24, ADD D21 AND C144, R27 FROM 47R TO 100R.
10
APR 11, 2002 5.00
UPDATE TABS
11
D
PC#6513 R123 1K TO 470R, R130 2K TO 1K
12
D
V
N
13
D
V
N
M1159A
NX520P
MODEL(S):-
REF
FUNCTION
PART#
KNOB
{NEW}
P1
MAIN GAIN
4537
K
JUNE 5th 2001
P2
MIC GAIN
4566
K
JUNE 5th 2001
P3
BASS TONE
4546
K
JUNE 5th 2001
P4
LINE GAIN
4566
K
JUNE 5th 2001
P5
HORN TONE
4537
K
JUNE 5th 2001
R
F
P
K
N
R
F
P
K
N
R
F
P
K
N
R
F
P
K
N
R
F
P
K
N
R
F
P
K
N
R
F
P
K
N
T126
BC550C
T0220
E C B
B C E
126
C B E
"STYLE_P25"
PRODUCTION NOTES
1. NOTE THAT THIER IS SEVERAL LINES ON THE DSBOTMASK LAYER.
THESE MAY BE USED FOR MARCONI TEST POINTS SO HAVE THIS LAYER
ON IF DOING ANY MODIFICATIONS.
2.-NOTE THAT HORN WIRES FOR NX520P AND EF500P ARE OPPOSITE IN COLOR
W.R.T. PCB INSERTION. CHECK PROPER LAYOUT FOR CORRECT COLORS
3. SLIDE EMI FILTER OVER RIBBON BEFORE INSERTING INTO P.C.B.
**************IMPORTANT******************
4. ADD AMPLE RTV UNDER ENTIRE BASE OF OUTPUT COIL L1
C137
C126
100N
100N
R206
C139
R197
47K
-
220R
33U
C70
NC
C2
16V
75R
R201
C1
NO
+
332R0
R194
1K
C125
R146
R204
R200
10K
47K
10K
R215
D.N.S.
10K
ETCH
470K
10K
6K8
R132
R144
4K7
C84
R198
R188
GUIDE
R186
R183
NE5532N
C93
220N
1K2
47K
NE5532N
R211
R141
220N
R208
R202
R184
4M7
47P
R165
1K4
2K49
D38
C85
33K
R125
R176
1N4148
220R
2K49
330N
R145
1K07
1M
R147
R158
15K
475R0
3K3
R135
R136
R127
R134
1M
324R0
2K2
R162
R142
U24
R161
R155
1M
Q23
TO92
15K
NE5532N
R150
BC560C
NE5532N
220R
LM13600N
R151
D44
R152
1N4148
150K
1N4148
2K7
D62
U23
R126
R115
R222
47K
R91
C75
1M
R118
820R
C89
470R
R123
27K
10N
U20
R124
U18
C135
NE5532N
NE5532N
NE5532N
1N4148
D37
1N4148
10K
R117
C81
BAT85
D39
1K
10U
BAT85
16V
BAT85
D32
R116
C87
39N
47N
D40
R140
R101
681R
2U2
C77
C88
22U
D27
681R
681R
63V
50V
1K
1N4148
2K49
R85
R99
R104
1K
R97
NE5532N
NE5532N
+
+
+
-
-
-
L2
L3
L4
C123
R157
C61
100N
2K49
R84
U14
39N
R90
68N
C59
C69
100N
274R
MPSA06
C68
U3
U2
74HC74
MC33078P
D14
1N4148
U1
U4
D18
C58
C37
LM311
LM311
LM311
4V7
C17
C54 U11
C57
D12
C16
C29
MC78L05ACP
R63
1K4
C27
C43
C52
C48
U10
U5
1N4148
R70
1K4
100N
74HC14N
74HC86N
U9
74HC14N
R74
1K4
4V7
D23
R65
1K
R166
47K
470N
BEC
BEC
C38
3N3
C143
40
LOC
LOC
ETCH
GUIDE
CLINCH
CLINCH
ORIGIN
ORIGIN
R191
R190
10K0
1K0
C129
C94
R168
33P
220R
10K0
1K0
MIXER_INPUT
22U
R207
R203
50V
C108
1N
RING-SW
TRANS BLK
RING
W20
SLEEVE
NE5532N
AC WHITE
R199
TIP-SW
W21
TIP
C121
C133
10K0
R196
100N
100N
10K0
R209
AC BLACK
D.N.S.
W9
10K0
C117
RING-SW
R167
D.N.S.
RING
R172
R170
10K0
SLEEVE
1K
TRANS BLK
22U
4K7
R177
NE5532N
C107
W10
50V
C98
TIP-SW
TIP
22U
249R
NE5532N
GROUND
1K
50V
68N
100N
1N
R180
2K
249R
30K
R179
C97
C99
R185
2K49
16V
562R
1K
R169
6K8
33U
16V
2K49
33U
18AWG
R178
75R
562R
C86
BLACK
C132
-24v
100N
R174
C116
W25
W19
RING-SW
C120
RED
BLUE
100N
RING
SILENT
SLEEVE
18AWG
18AWG
18AWG
ORANGE
PSGND
D42
W8
TIP-SW
TIP
W15
C60
470P
+54V
D30
C72
GREEN
220N
220N
1N4148
1M
R88
C119
R108
C76
-54V
18AWG
C113
W22
NE5532N
NE5532N
BROWN
18AWG
C131
C65
-150V
U17
R111
1N4148
D25
562R0
W24
D26
R87
WHITE
TIP
V T
R
TIP-SW
18AWG
R106
SLEEVE
+150V
W7
RING
YELLOW
RING-SW
18AWG
1N4148
D35
16AWG
1N4148
GREEN
D31
W16
Q21
C74
MPSA13
INPUTGND
R22
C12
W1
MJE340
1U
2U2
Function
63V
63V
C92
C32
C26
C7
C11
63V
10U
Q11
R105
R10
Q9
Q7
Q6
Q8
Q4
C36
U6
C3
C21
63V
4U7
MC33079P
C8
R5
Q5
C6
R16
C9
3K9
12V0
2K2
C49
C47
D7
4U7
63V
22K
R1
C1
680P
C56
100N
W2
Q13
D24
C55
C50
C142
FROM POWER SUPPLY
0R047
1K5
R33
5.0W
Q19
Q20
R31
1K5
R60
U8
C33
IR2110
C42
C34
100N
100N
C25
C35
R41
1M
18AWG
1M
POS_OUTPUT
R57
D16
18V0
6
UF4004
D17
UF4004
RED
6R2
R53
C23
3U3
V T
V T
R
140V
R
5
18AWG
BLACK
NEG_OUTPUT
C22
M1159 /A
L5
C106
C102
EF500P/NX520P
D52
V T
VER-5.00
R
V T
1N5402
R
V T
T7.0
R98
R
V T
R
V T
R
W13
1N5402
1N5402
V T
V T
R
R
C109
D56
T7.0
R61
100N
W17
C105
1N5402
C111
V T R
V T
R
D49
1N4004
W26
PTC
1N5402
W18
R
V T
50V
50V
T
2200U
R
V
2200U
1N5402
+24v
W14
W11
CENTERTAP
C115
1N5402
V T
PSGND
R
1N5402
W12
2200U
C104
V T
R
63V
63V
V T
2200U
1N4004
R
D50
W27
18AWG
MR752
V T
R
D48
DOWN
BAR
2700U
BAR DOWN
180V
MR752
W6
D53
R
T
V T
R
V
W23
DOWN
BAR
D59
V T
180V
R
MR752
2700U
BAR DOWN
MR752
C100
D61
R26
D11
2K21
12V0
C13
Q1
63V
1.0W
10U
C
0R47
R18
D10
E
D6
D21
3
MR854
R23
Q10
12R
16V0
D9
1.0W
0R47
4
R6
12R
0R47
1.0W
Q3
C5
0R47
C4
1.0W
2.0W
Q2
2K2
2K21
R4
R3
C2
R2
D1
12V0
D2
16V0
R58
0R047
D3
MR854
5.0W
C110
4U7
63V
C20
C51
63V
V T
4U7
R
V
T R
C24
C53
V T R
Q14
T
R
V
C31
C30
100N
140V
V T
V T
R
3U3
R
100N
C19
Q15
ETCH
GUIDE
SOCKET
SOCKET UPSIDE DOWN
NORMAL
NORMAL LARGE
SOCKET WITH DIRECTION
TAB
BLACK
YELLOW
RED
BLACK
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