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6
INPUT SIGNAL
D
CH1_PEAK_INPUT
CH3_PEAK_INPUT
C20
SW1-A
22uF,16V
1
CH2_PEAK_INPUT
2
3
S11
CH4_PEAK_INPUT
SW1-B
4
CH1_PEAK_OUTPUT
5
6
CH3_PEAK_OUTPUT
C11
SW1-C
CH2_PEAK_OUTPUT
22uF,16V
CH4_PEAK_OUTPUT
SW1-D
OUTPUT SIGNAL
C
METER_L
B
METER_R
A
5
C14
1uF
C267
15pF
BAT54S
R295
7.68k 1%
R275
6 -
7
U1-B
10k 1%
5
+
C1
D21
R1
MC33079
100k 1%
1uF
Gain adjustment
Rectify w/ Fast Attack,
Slow Decay
C17
1uF
C266
15pF
BAT54S
R296
7.68k 1%
R274
6 -
7
U30-B
5
10k 1%
+
D6
C3
R7
MC33079
100k 1%
1uF
+5V
+5V
+5V
+5V
C5
R14
R20
10k 1%
1uF
10k 1%
8 -
R18
14
U3-C
9
+
10k 1%
LM339
Q2
MBT4403
10 -
13
U3-D
11
+
LM339
R13
+5V
+5V
200k 1%
1.00k 1%
R11
R15
10k 1%
100k 1%
C2
R12
R19
0.1uF
5.36k 1%
10k 1%
+5V
+5V
+5V
+5V
C7
R29
R33
10k 1%
1uF
10k 1%
6 -
R32
1
U3-A
7
+
10k 1%
LM339
Q4
MBT4403
4 -
2
U3-B
5
+
LM339
R28
200k 1%
1.00k 1%
4
3
C15
100pF
C16
0.1uF
R8
100k 1%
R17
66.5k 1% R27
10k 1%
2 -
9 -
1
13 -
U1-A
U1-C
3
14
10
+
U1-D
+
12
MC33079
+
MC33079
MC33079
R40
39.2k 1% R41
10k 1%
METER_L
Differentiate to
Mix target level with
Convert to current
find transients
transient boost (1:1)
for VU meter
C18
100pF
C19
0.1uF
R49
100k 1%
R50
66.5k 1% R51
10k 1%
2 -
9 -
1
13 -
U30-A
U30-C
3
14
10
+
U30-D
+
MC33079
12
+
MC33079
MC33079
R52
39.2k 1% R53
10k 1%
METER_R
+5V
+5V
R21
R24
Q1
MBT4403
10k 1%
10k 1%
Q3
MBT4403
RED
RED
WHITE
WHITE
D9
D10
D1
D2
R6
R26
R22
R23
R25
330 ohm
150 ohm
150 ohm
330 ohm
+5V
+5V
R34
R37
Q6
MBT4403
10k 1%
10k 1%
Q5
MBT4403
RED
RED
WHITE
WHITE
D12
D13
D3
D4
R42
R38
R39
R35
R36
330 ohm
330 ohm
150 ohm
150 ohm
2
+5V
R47
510K
Q7
8
MBT4401
+
VU1
R48
1.50k 1%
+5V
R54
510K
Q8
8
MBT4401
+
VU2
R55
1.50k 1%
C8
0.1uF
COMPANY:
TITLE:
AI01 Front Panel PCB
PART NUMBER:
9-40-0600-3
ASSY NUMBER:
9-79-0600-3
DRAWN:
DATED:
CB/KRH
6/15/2011
FILENAME:
AI01FP301B.sch
RELEASED:
DATED:
SCALE:
1
D
C
B
+5V
3
C12
4
C21
4
+v
U3-E
+v
U30-E
+v
U1-E
-v
0.1uF
-v
0.1uF
-v
12
11
11
MC33079
-5V
AKAI
A
SIZE:
C
SHEET:
2
OF
2
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