aion Lab Series Manual - Page 14
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Print PageSCHEMATIC (INPUT, CH. 1, CH. 2, MULTIFILTER, SWITCHING)
Input
R1
IN
10k
GND
GND
C3
10uF
GND
Channel 1 & 2
CH.1
CH.2
GND
GND
3
FROM
2
A
MULTIFILTER
1
INPUT
C9
MF CHANNEL
4n7
VA
IC3A
RC4558
3
1
2
GND
-VA
R14
GND
10k
2
1
3
IC2A
RC4558
GND
6
7
5
IC3B
RC4558
GND
L5 PREAMP
VA
IC1
3
5
R5
TO
6
CHANNEL
2
1k
SWITCH
C4
LF356
10n
-VA
R3
GND
47k
C2
22pF
VA
IC2B
RC4558
5
7
6
-VA
GND
R9
47k
GND
C7
22pF
GND
GND
R17
27k
VA
C12
R16
IC4B
6
4.7uF
7
27k
5
RC4558
GND
-VA
VA
MID 2
25kB
2
3
1
2
3
-VA
R19
18k
6
7
R22
5
IC5B
18k
RC4558
Channel switching
CHANNEL A
A1
CH.1
A
2
CHANNEL
A3
CH.2
B1
B
2
B3
CHANNEL B
GND
3
2
1
BRIGHT 1
C8
47n
FROM
MULTIFILTER
B
OUTPUT
BASS 2
25kB
R26
R27
3
1
22k
2k2
2
GND
C13
C14
68n
68n
2
1
C15
3
IC4A
RC4558
2n2
GND
2
R30
3
1
24k
TREBLE 2
25kB
IC5A
RC4558
FREQUENCY A
1
100kC
R23
1k5
3
1
C10
2
4n7
2
C11
R24
3
1
68n
1k5
FREQUENCY B
100kC
GND
GND
Bypass switching
+9V
A1
TO
A2
PCB
A3
IN
BYPASS A
BYPASS C
C1
TO
C2
OUTPUT
C3
JACK
GND
Multifilter
R50
TO
C
DISTORTION
18k
& LIMITER
+9V
FROM
INPUT
INPUT
JACK
FROM
BYPASS B
PCB
OUT
GND
VA
IC6A
RC4558
3
R34
1
2
22k
-VA
R32
270k
C16
C17
15n
15n
R33
390R
GND
IC6B
RC4558
5
R37
7
6
22k
R35
300k
C18
C19
10n
10n
R36
430R
GND
VA
IC7B
RC4558
5
R40
7
6
22k
-VA
R38
240k
C20
C21
8n2
8n2
R39
390R
GND
IC7A
RC4558
3
A
R43
1
B
MULTIFILTER
2
22k
INPUT
MULTIFILTER
OUTPUT
R41
300k
C22
C23
4n7
4n7
R42
560R
GND
VA
IC8B
RC4558
5
R46
7
6
22k
-VA
R44
220k
C24
C25
4n7
4n7
R45
390R
GND
IC8A
RC4558
3
R49
1
2
22k
R47
150k
C26
C27
4n7
4n7
R48
300R
GND
14