D
C
B
A
8 |
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|
7 |
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|
6 |
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||
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2 |
|
LED1 |
RED |
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Peak |
1 |
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|
R30 |
|
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|
4.7K |
|
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|
D13 |
|
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Q1 |
IN4148 |
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||
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2N5551 |
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Q3 |
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2N5551 |
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R21 |
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R32 |
|
R31 |
|
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||
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|
470K |
|
47K |
6.8K |
|
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|
+15V |
|
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|
|
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||
|
S1-B |
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D9 |
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D10 |
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4 |
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|
IN4148 |
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|
IN4148 |
|
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6 |
5 |
|
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|
C30 0.022UF |
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D1 |
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|
ICTL074CNDIP14 |
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|||
Input |
|
R2 |
IN4148 |
0.022UF |
ICTL074CNDIP14 |
|
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|
R8 |
|
R12 |
||||
|
|
C4 |
|
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||||||||
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|||||||
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||||
1 |
68K |
|
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3 + |
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5 |
+ |
|
7 |
33K |
|
10K |
|
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|
1 |
|
6 |
U1- -B |
C1 4700PF |
|
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||||
6 |
|
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|
2 U1- |
-A |
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|
R11 10K |
|||||
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4.7K |
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|||||
5 |
|
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D2 |
|
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2 |
R36 |
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R1 |
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R3 |
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|
IN4148 |
|
|
1M |
|
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|
C29 |
220PF |
|
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|
4 |
4.7K |
|
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||||
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||||
3 |
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R7 |
A50K |
|
R9 |
R10 |
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J2 |
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S1-A |
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R13 |
|||||
1 |
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|
10K |
10K |
||
|
2 |
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||||
|
3 |
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4.7K |
|
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|
PAD |
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|
Gain |
|
C3 |
|
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||
|
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|
|
-15V |
|
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|
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|
|
0.22UF |
|
||||
|
R37 |
-15dB |
|
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|||
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|||
|
15K |
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|
C14 100PF |
R56 |
|
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|
R38 |
|
100 |
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||
|
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10K |
|
R4 |
|
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|
C21 |
|
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|
|
Audio in |
|
|
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|
|
47K |
|
||
|
|
|
|
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|||
|
|
|
|
|
|
|
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||
|
3 |
10UF |
|
1K |
|
10K |
6 |
|
|
|
|
25V |
|
R42 |
|
7 |
|
||
|
|
|
|
R34 |
|
|
|||
|
|
|
R40 |
C16 |
|
5 |
|
|
|
|
|
|
470PF |
|
|
|
|
||
|
2 |
|
100K |
|
|
|
|
U3-B |
|
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|
NE5532P |
|
|
|
|
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|
|
1 |
|
|
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|
|
|
C15 100PF |
R57 |
J4 |
|
|
|
|
|
|
|
||
|
|
R41 |
|
|
R39 |
|
100 |
||
PA1 |
1 |
|
|
C17 |
|
|
|||
|
|
100K |
|
470PF |
10K |
|
|
|
|
|
|
|
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|
R33 |
|
||
|
|
C22 |
|
|
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|
47K |
|
|
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|
|
10UF |
|
1K |
|
10K |
|
|
|
|
|
25V |
|
R43 |
|
R35 |
2 |
1 |
|
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|
3 |
|
||
|
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|
U3-A |
|
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|
NE5532P |
|
|
|
5 |
|
|
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|
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|
4 |
|
|
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|
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|
3 |
|
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|
2 |
|
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1 |
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|
|
ECO/DSR |
REV: |
DESCRIPTION |
REV. BY: |
DATE |
||
|
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|
|
ECOCHN0846 |
100 |
RELEASE TO PROTOTYPE |
John |
March.19.2010 |
||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
+15V |
|
|
|
|
|
|
|
|
|
|
ECOCHN0884 |
A00 |
RELEASE TO Pilot |
|
John |
June 23,2010 |
|||
|
|
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||||||
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|
|
ECOWD12942 |
B00 |
Change led 3 |
|
RJ |
6/30/2010 |
|
|
|
|
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|
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|
|
|
|
|
|
|
|
C13 100PF |
|
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|
|
|
|
|
|
|
|
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|
D3 |
|
|
|
|
R49 |
|
|
D5 |
|
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|
|
|
|
|
|
|
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|
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|
|
|
|
|
10K |
|
|
IN4148 |
|
|
|
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|
|
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|
|
|
|
|
|
||
|
|
|
|
|
|
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|
|
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|
|
IN4148 |
|
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|
|
|
|
|
|
|
|||
|
|
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|
|
|
|
|
|
|
|
NE5532P |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|||
|
|
|
|
|
|
|
|
|
|
C12 0.22UF |
|
R48 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
22K |
|
7 |
|
|
2 |
|
|
|
|
|
|
C25 |
|
220 |
|
|
|
|
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
5 |
|
10K |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||
|
|
|
|
|
|
|
|
|
R46 |
|
U4-B |
|
|
|
|
|
|
|
|
|
|
|
R50 |
|
|
|
|
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
|
|
6 |
|
|
|
|
3 |
|
1 |
|
|
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|
|
|
|
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|
|
|
|
|
|
|
R47 |
|
|
|
|
|
|
U4-A |
|
|
|
22UF |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
68K |
|
D4 |
|
|
|
|
NE5532P |
|
D6 |
|
50V |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
IN4148 |
|
|
|
|
|
|
|
IN4148 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
C20 100PF |
|
|
|
|
-15V |
|
|
|
|
|
|
R51 |
|
|
|
|
|
|
|
J6-1 |
Preamp LINE OUT+ |
|
||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
C26 |
|
|
|
|
|
|
|
|
|
Preamp LINE OUT- |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
220 |
|
|
|
|
|
|
|
J6-2 |
|
||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
50V |
|
|
|
|
|
|
|
|
|
J6-3 |
GND |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
J6-4 |
SEND |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
22UF |
|
|
|
|
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
J6-5 |
GND |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
J6-6 |
RETURN |
|
|
|
|
|
|
IN4148 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
J6-7 |
GND |
|
|
|
|
|
|
|
D12 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
|
|
|
|
|
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|
|
|
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|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
D11 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
IN4148 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
+15V |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
R55 |
|
|
D7 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
IN4148 |
|
|
|
||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1.5K |
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ICTL074CNDIP14 |
|
|
|
|
|
|
|
|
|
|
R25 |
|
|
|
|
|
|
C18 100PF |
|
|
|
|
|
|
|
|
|
|
|
|
|||
C2 |
Midrange |
|
|
|
C5 0.01UF |
|
|
|
|
|
|
33K |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
D8 |
|
|
|
|
||||
4700PF |
|
U1-C |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
R27 |
|
|
|
|
|
|
|
|
|
|
|
|||
B50K |
|
10 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
-15V |
IN4148 |
|
|
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+ |
8 |
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10K |
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||
R15 |
|
9 |
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||
|
- |
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R23 |
C7 0.1UF |
C9 0.1UF |
ICTL074CNDIP14 |
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||||||
|
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|
R18 10K |
|
|
C8 0.022UF |
|
|
R26 |
|
2 |
|
|
100 |
|
|
|
C10 |
U5-B |
|
|
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|
|||||||||||
|
|
|
33K |
|
|
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|
22K |
|
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|
14 |
|
|
|
|
|
|
0.22UF |
|
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|
|||||||||
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R17 |
|
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|
A50K |
|
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12 |
+ |
|
10K |
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R28 |
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R22 |
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13 |
U1-D |
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3 |
1 |
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TL072CN |
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Treble |
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- |
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5 |
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U5-A |
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7 |
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||
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R24 |
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6 |
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||
R14 |
R5 |
|
1K |
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|||
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A50K |
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C6 |
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TL072CN |
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||||||
2M |
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150K |
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||||||
7.5K |
R16 |
|
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|
0.1UF |
|
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||||||
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R20 |
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||||
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BASS |
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1K |
|
C31 |
0.22UF |
4.7K |
|
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A50K |
Volume |
|
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R19 |
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R6 |
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R44 |
|
R29 |
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100K |
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|
J5-1 |
PREAMP SIGNAL OUT |
|
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J5-2 |
GND |
|
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|
J5-3 |
AMP SIGNAL RETURN |
|
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J5-4 |
LIMIT_LED |
|
|
Phone |
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J5-5 |
LIMITER |
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3 |
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J5-6 |
+15V |
|
|
|
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|
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|
|
R45 |
4.7K |
|
|
|
R59 4.7K |
4.7K |
R52 |
|
|
|
|
|
|
|
|
|
U3-C |
|
|
C19 |
C23 |
C27 |
C33 |
|
J5-7 |
GND |
|
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|
+15V |
|
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||||||||
2 |
|
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|
4 |
|
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|
|
|
|
TL072CN |
NE5532P |
|
|
10UF |
10UF |
10UF |
10UF |
|
J5-8 |
-15V |
|
|
|||||||||
|
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8 |
|
8 |
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|||
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5 |
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|
2N5551 |
|
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|
8 |
|
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J5-9 |
|
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|||
1 |
|
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6 |
|
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|
U5-C |
|
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|||
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Q5 |
R63 |
|
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4 |
|
4 |
|
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||
J1 |
|
|
|
|
S2-B |
|
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|
4 |
|
|
U4-C |
C32 |
C24 |
C28 |
C34 |
|
|
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|
|
||||||
|
|
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|
22K |
|
|
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|
|
NE5532P |
|
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|
||||||
|
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|
2LED2 |
|
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|
10UF |
10UF |
10UF |
10UF |
|
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|||||
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|
MUTE |
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|||||||
|
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|
Limit |
|
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|
-15V |
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|||
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||||
|
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|
|
1 |
YELLOW |
|
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|
S2-A |
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1 |
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||
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1 |
2 |
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3 |
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|
PA2 |
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||
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|
Q2 |
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|
|
2N5551 |
|
|
|
|
|
|
|
|
|
|
|
|
Limit |
10K |
|
|
|
|
|
|
|||
|
|
|
2N5551 |
|
|
|
|
|
10K |
|
|
Q4 |
|
|
R61 |
100K |
|
|
|
|
|
|
|
|
|
R53 |
|
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|||
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||||
|
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|
R58 |
|
|
|
R54 |
|
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|
|
MUTE |
|
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|
|
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|
|
C35 |
|
|
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|
|
|
|
|
|
|
|
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|
||
|
|
|
|
|
|
22K |
|
|
|
0.22UF |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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R60 |
|
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|
|
|
|
|
|
|
|
|
|
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|
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|
|
|
|
|
|
100K |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
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|
|
2LED3 Fault |
|
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|
|
|
|
|
|
|
|
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||
|
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|
|
|
1 |
YELLOW |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
SCH1 |
2035216-XX |
|
SCHEMATIC PCB ASSY PREAMP PF350 |
||
|
PCB1 |
2035215-01 |
|
PCB FAB FR4 DOUBLE 1 OZ 1.6mm Preamp board PF350 |
||
|
C 2010 LOUD TECHNOLOGIES INC. ALL RIGHTS RESERVED
THE INFORMATION CONTAINED HEREIN IS PROPRIETARY AND CONFIDENTIAL PROPERTY OF LOUD TECHNOLOGIES INC.
APPROVALS |
DATE |
|
DRAWN: |
John |
March.19.2010 |
|
||
CHECKED: |
|
TECHNOLOGIES INC. WOODINVILLE WA. USA |
|
|
|
NP ENG: |
|
|
MATERIAL: |
|
SCHEMATIC PCB ASSY PREAMP PF350 |
|
||
MFG: |
|
|
|
|
|
MFG ENG: |
SIZE SCALE: |
DWG. NO. |
REV. |
||
D |
|
2035216-XX |
|
||
|
NONE |
B00 |
|||
ISSUED: |
|
||||
DWG FILE: |
SHEET 1 OF |
1 |
|||
|
D
C
B
A
8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |