YORKVILLE

NAME: PCB#&VER:
MODELS: SCH ISSUE:
TITLE:
DATE:
M1019
BM400E
BM400
M1019.SCH
APR/08/98
BASS_AMP_400W
3.10
1/2
TLO72
U101
2
31
100n
C120
100n
C122
100p
C133
4u7 16V
C138
33n
C135
D112
D114D113
D111
1/2
TLO72
U102
2
31
47K
R142
16K
R140
47K
R139
WC6
25V
1u
C214
180K
R202 25V
47n
C203
25V
470n
C204
100R
R208
820R
R209
6K8
R210
47K
R207
100n
C137
3V
1N5225B
ZD101
25V
47n
C215
25V
100n
C201
100R
R204
1K
R205
100R
R226
1K5
R225 6K8
R224
47K
R227
25V
330n
C216
25V
22n
C217
3V
1N5225B
ZD102
SRT
EFX_SEND
NO_GOLD
JB1041
2
3
4
5
6
100R
R342
2u2
25V
C212
25V
100n
C213
24K
R115 24K
R116
220n
C112 22n
C113
1K
R158
MPSA06
Q101
BC560
Q207
CONN1
1
2
3
4
5
6
7
8
6K8
R113
47K
R112
4K7
R111
330n
C114
180n
C115
3n3
C110
3n3
C109
1K
R160
BC560
Q205
25V
22n
C220
CW
VOLUME 1B
10K
P103
33n
C102
680p
C101 1M
R103
D101
D102
560R
R341
CW
GAIN
2K
5C P101
47K
R335
24K
R101
22R
R107
470R
R108
12n
C103
BC BC
V-
V+
TLO71
U100
2
3
158
6
4
7
470R
R104
47R
R105
470R
R106
330n
C104
BC560
Q204
100n
C140
4K7
R114
13K
R118
20K
R119
D103
6K8
R332
20K
R120
25V
2n2
C221
47K
R339
BC560
Q208
25V
15n
C210
680p
C209
1K
R138
100R
R220
560R
R221
6K8
R218 6K8
R222
100p
C116
560R
R217
47K
R219
47K
R215
100R
R216
25V
3n3
C207
25V
39n
C208
6K8
R340
820R
R333
100R
R334
6K8
R336
47K
R343
820R
R337
25V
100n
C218
25V
1u
C202
16V1u
C131
100R
R338
BC560
Q203
47K
R211
6K8
R214
820R
R213
100R
R212
25V
150n
C206
25V
10n
C205
25V
3n3
C219
47K
R331
6K8
R228
BC560
Q209
BC560
Q202
47K
R203
6K8
R206
BC560
Q210
910R
R229
100R
R330
220p
C211
16K
R223
BC560
Q206
100n
C141
LEVEL 1B
20K
P102
10KHz
1B
20K
P210
5KHz
1B
20K
P209
2.5KHz
1B
20K
P208
1.3KHz
1B
20K
P207
660Hz
1B
20K
P206
340Hz
1B
20K
P205
180Hz
1B
20K
P204
180K
R124
16K
R201
4n7
C117
2N5638
Q106
4M7
R126
4n7
C118
4M7
R134
MPSA06
Q105
100K
R129
1N4004
D110
1N4004
D109
WC4
1M
R133
4K7
R135
YELLOW
LD102
1K8
R130
1M
R125
2n2
C129
100K
R132
1K5
R131
SRT
EFX_RTN
GOLD_TIP
JB1051
2
3
4
5
6
BC BC
V-
V+
TLO71
U104
2
3
158
6
4
7
BC560
Q201
100K
R123
1N4004
D108
1N4004
D107
WC5
SRT
FTSWTCH
GOLD_T+R
JB103 1
2
3
4
5
6
GREEN
LD101
P
N
1/3
MC14007
U103
6
14
13
8
7
1/2
TLO72
U101
6
57
P
N
1/3
MC14007
U103
3
2
1
5
4
P
N
1/3
MC14007
U103
10
1112
9
D105
4K7
R127
D106
100Hz
1B
20K
P203
D104
BC560
Q103
D116
4K7
R136
1K8
R121 1K5
R122
D115
4K7
R137
OUT
IN
S103
1
2
3
470R
R143
12n
C130
470R
R162
BC560
Q104
1/2
TLO72
U105
6
57
1/2
TLO72
U105
2
31
40Hz
1B
20K
P201
1/2
TLO72
U102
6
57
SRT
INPUT_0dB
GOLD_TIP
JB101 1
2
3
4
5
6
60Hz
1B
20K
P202
2n2
C111
100n
C123
12n
C150
470R
R150
100p
C12810K0
R149
SRT
LINE_OUT
NO_GOLD
JB1061
2
3
4
5
6
100u
16V
C105
100R
R151
470R
R152
D50
SRT
LINE_OUT
NO_GOLD
JB1071
2
3
4
5
6
12K
R145
10K
R159
10K0
R147
SRT
INPUT_-6dB
GOLD_TIP
JB102 1
2
3
4
5
6
24K
R102
100u16V C106
100n
C121
100n
C119
100p
C127
220n
C125
82n
C126
10K0
R146
100K
R154
10K
R153
10K0
R148 D51
100n
C124
WC9
OUT
IN
S101
1
2
3
OUT
IN
S102
1
2
3
680R
R156
820R
R155
100R
R157
10R
R161
WC2 WC3
330n
C134
WC1
100n
C151
SRT
EFX_LOOP
GOLD_T+R
JB1081
2
3
4
5
6
470R
R144
WC11WC10
WC12 WC13
WC7 WC8
EBCMPSA06CBEBC560CDSG2N5638
FETCTL
FETCTL
LIMSIG
LIMSIG
-7.5V
-7.5V
-7.5V
GRPCCTL
GRPCCTL
LG
LG
LG
LG
LG
LG
LG
LG
LG
LG
LG
CNTRCTL
CNTRCTL
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V+15V+15V+15V+15V
+15V +15V +15V +15V +15V
-15V
-15V
-15V
-15V
-15V
-15V
-15V -15V -15V -15V -15V
-15V-15V-15V-15V -15V
AMPIN
AMPIN
+7.5V
+7.5V
+7.5V
SG
SG
SG SG
SG
SG
SG
SG
SG
SGSGSGSGSG
SGSGSGSG SG
SG
SG
SG
SG
SG
SGSG SG
(ON BACK)
(ON BACK)
AND SWITCHING
FOR 4007
GRAPHIC EQUALIZER
THE 400B BY A.WILSON AND C.CHIU
BYPASS CAPS FOR OP AMPS
LIMITER
POWER SUPPLY
MID
GRAPHIC
EQUALIZER
CONTOUR
POWER AMP BOARD
TO M1018

NOTES:

LOW PASS
HIGH PASS
ALL UNMARKED DIODES 1N4148