Ampeg PF-350 Schematic
D
C
B
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8 |
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6 |
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2 |
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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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2N5551 |
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Q3 |
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2N5551 |
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R21 |
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R32 |
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R31 |
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470K |
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47K |
6.8K |
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+15V |
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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 |
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R2 |
IN4148 |
0.022UF |
ICTL074CNDIP14 |
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R8 |
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R12 |
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C4 |
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1 |
68K |
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3 + |
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5 |
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7 |
33K |
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10K |
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1 |
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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 |
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1M |
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C29 |
220PF |
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4 |
4.7K |
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3 |
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R7 |
A50K |
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R9 |
R10 |
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J2 |
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S1-A |
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R13 |
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1 |
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10K |
10K |
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2 |
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3 |
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4.7K |
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PAD |
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Gain |
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C3 |
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-15V |
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0.22UF |
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R37 |
-15dB |
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15K |
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C14 100PF |
R56 |
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R38 |
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100 |
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10K |
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R4 |
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C21 |
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Audio in |
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47K |
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3 |
10UF |
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1K |
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10K |
6 |
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25V |
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R42 |
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7 |
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R34 |
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R40 |
C16 |
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5 |
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470PF |
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2 |
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100K |
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U3-B |
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NE5532P |
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1 |
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C15 100PF |
R57 |
J4 |
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R41 |
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R39 |
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100 |
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PA1 |
1 |
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C17 |
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100K |
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470PF |
10K |
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R33 |
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C22 |
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47K |
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10UF |
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1K |
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10K |
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25V |
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R43 |
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R35 |
2 |
1 |
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3 |
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U3-A |
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NE5532P |
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5 |
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4 |
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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 |
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+15V |
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ECOCHN0884 |
A00 |
RELEASE TO Pilot |
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John |
June 23,2010 |
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ECOWD12942 |
B00 |
Change led 3 |
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RJ |
6/30/2010 |
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C13 100PF |
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D3 |
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R49 |
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D5 |
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10K |
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IN4148 |
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IN4148 |
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NE5532P |
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C12 0.22UF |
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R48 |
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22K |
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7 |
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2 |
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C25 |
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220 |
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5 |
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10K |
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R46 |
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U4-B |
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R50 |
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6 |
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3 |
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1 |
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R47 |
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U4-A |
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22UF |
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68K |
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D4 |
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NE5532P |
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D6 |
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50V |
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IN4148 |
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IN4148 |
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C20 100PF |
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-15V |
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R51 |
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J6-1 |
Preamp LINE OUT+ |
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C26 |
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Preamp LINE OUT- |
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220 |
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J6-2 |
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50V |
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J6-3 |
GND |
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J6-4 |
SEND |
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22UF |
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J6-5 |
GND |
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J6-6 |
RETURN |
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IN4148 |
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J6-7 |
GND |
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D12 |
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D11 |
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IN4148 |
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+15V |
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R55 |
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D7 |
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IN4148 |
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1.5K |
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ICTL074CNDIP14 |
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R25 |
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C18 100PF |
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C2 |
Midrange |
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C5 0.01UF |
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33K |
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D8 |
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4700PF |
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U1-C |
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R27 |
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B50K |
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10 |
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-15V |
IN4148 |
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+ |
8 |
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10K |
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R15 |
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9 |
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- |
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R23 |
C7 0.1UF |
C9 0.1UF |
ICTL074CNDIP14 |
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R18 10K |
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C8 0.022UF |
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R26 |
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2 |
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100 |
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C10 |
U5-B |
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33K |
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22K |
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14 |
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0.22UF |
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R17 |
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A50K |
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12 |
+ |
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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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R24 |
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6 |
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R14 |
R5 |
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1K |
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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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R20 |
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BASS |
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1K |
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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 |
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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 |
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Phone |
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J5-5 |
LIMITER |
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3 |
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J5-6 |
+15V |
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R45 |
4.7K |
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R59 4.7K |
4.7K |
R52 |
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U3-C |
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C19 |
C23 |
C27 |
C33 |
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J5-7 |
GND |
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+15V |
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2 |
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4 |
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TL072CN |
NE5532P |
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10UF |
10UF |
10UF |
10UF |
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J5-8 |
-15V |
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8 |
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8 |
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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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Q5 |
R63 |
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4 |
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4 |
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J1 |
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S2-B |
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4 |
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U4-C |
C32 |
C24 |
C28 |
C34 |
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22K |
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NE5532P |
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2LED2 |
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10UF |
10UF |
10UF |
10UF |
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MUTE |
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Limit |
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-15V |
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1 |
YELLOW |
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S2-A |
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1 |
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1 |
2 |
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3 |
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PA2 |
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Q2 |
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2N5551 |
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Limit |
10K |
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|||
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2N5551 |
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10K |
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Q4 |
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R61 |
100K |
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R53 |
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R58 |
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R54 |
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MUTE |
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C35 |
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22K |
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0.22UF |
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R60 |
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100K |
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2LED3 Fault |
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1 |
YELLOW |
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|
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: |
|
|
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|
|
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 |
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