Ashly MX-406 Operating Manual page 14

1 2
E
+48
R43 R44
6.8K 6.8K
J19A
MIC INPUT
JACK-COMBO
R119
1 2
620
Out
D
C60
1 SW5A
2
3
47U/63V
R118
160 -20dB PAD
C61
6
SW5B 5
BKT1
4
BRKT-GND
47U/63V
Out
R120
620
C49
C48
.001U
.001U
R137
EG
None
BKT2
BRKT-GND
C
R77
J19B
LINE 22k
R76
INPUT
22k
JACK-COMBO
J15
INSERT
POINT
B
Break-Away Back Panel PCB
A
1 2
3 4
MIC GAIN
R121 560 SW6A
+20dB
R122 560
+40dB
R64 10
+60dB
R81 3.3K
C50
3300U
J18G J18H
+15
+15
J17G J17H
C41
.1U
R126
5.90K
R125
5.90K
C51 C52
D12 D13 None
None
1N4148 1N4148
Q10 Q11
R62
2N4125 2N4125
10
C55
C53
100P
None
R63
10
C54
D14 D15
R129 R130
1N4148 1N4148 2.55K 2.55K 100P
R131 R132 R128
C57
2.55K 2.55K 5.90K
C42
100P
.1U
-15
C62
R33 100k
47u
D17
R27
100
1N4148
J17B J18B
6
VR8B
R123
7
U12B
5
470
B20k
4560
HIGH
C65
R51
R18
LOW
2.7k
10k .033u
VR8A R52 2.7k
C66
B20k
.22u C67 .22u
6
J17D J18D
U13B
+15 +15
5
C44
EQ
.1U C45
.1U
J17E J18E
-15 -15
C47 C46
.1U .1U
J17F J18F
J17C J18C
+48 +48
Front Panel Panel PCB
3 4
MX-406 Input Channel
5 6
+15M
C63
None
R135 R134
None None
Q14
None
C64
Q9
None
R133
None
None
R95 R136
None None
C56 100P
R127 5.90K
C43 R114
.1U 62K
2 J17A J18A
D19
R71 R111
Q12
1 Pre
U12A
2N4125
3
2.4K 390K
1N4148
4560
PRE AUX SEND
J16
POST
PEAKBUS
D18
R124
1N4148 D16
1N4148
470
+20dB Max, +9.4dB Mid
R82
VR7B
3.3K
R70 2k B20K
6 4
C58
R39
C59 33k
100p
100p
R117
7 2
R83
PostSig
3.3k 1
U13A
3
4560 3.3K
4560
LEVEL
5 6
7 8
Q15
None
-15M
D64
R104
None
None
SIGNAL
Q13
2N4125
CLIP
D63
-15M
R103
J12
2.7k
R
-15M +48
1 14
+15M -15
2 13
+15
3 12
AUX
4 11
GND-METER
5 10
RBUS
6 9
VR9 LBUS
7 8
R86
AUX DIP14
3.3k
B10K
R85
LBUS
3.3K
VR7A 2
B5K
R84
RBUS
3.3K
PAN
-.2dB Center
C
$VKO\ $XGLR ,QF
847 Holt Road
Webster, NY 14580-9103
Phone: (716) 872-0010 Fax: (716) 872-0739
Drawn By
Size Sheet # 1 of 1 Print Date
James B Franks
A->B @ 157%
B
26-Jul-2002
S:\Engineering\CLIENT98\5400\10s5402b.sch
xxx PCB
APPROVED: Dwg #
7 8
E
D
C
B
10:55:31 Rev.
A
A