Jul 03

MN3007 Echo Processor for Microphone

Electronic Echo Mic1-schematic-diagram

MN3007 Echo Processor for Microphone Circuit Schematic Diagram

Electronic Echo Mic2-schematic-diagram

MN3007 Echo Processor for Microphone Circuit Schematic Diagram (2)

Electronic Echo Mic1-circuit

MN3007 Echo Processor for Microphone PCB and Components Layout

Electronic Echo Mic2-circuit

MN3007 Echo Processor for Microphone Installation

Parts List

Resistor :

  • R1,R4 …………………………….. 22K
  • R2,R3,R9,R10 …………………. 100K
  • R19,R20 ………………………… 100K
  • R5 …………………………………. 6,8K
  • R6,R22 ……………………………..56K
  • R7 ………………………………….. 470
  • R8 …………………………………. 120K
  • R11,R12 …………………………… 5,6K
  • R13 …………………………………. 3,3K
  • R14 …………………………………. 68K
  • R15,R16,R17 ……………………… 82K
  • R18 …………………………………… 1K
  • R21 ………………………………….. 150
  • R23 …………………………………. 33K
  • R24 …………………………………… 10
  • R25 …………………………………. 10K
  • R26 …………………………………. 330
  • R27 …………………………………. 220

Variable Resistor :

  • VR1 ………………………………… 50K
  • VR2 ………………………………. 200K
  • VR3,VR4 ………………………….. 10K

Capacitor :

  • C1,C7 ……………………………. 0,22uF
  • C2,C12 ………………………………. 1uF
  • C3 …………………………………. 150pF
  • C4 …………………………………. 220uF
  • C5,C6 ……………………………… 0,1uF
  • C8 …………………………………… 33uF
  • C9,C10,C11 ……………………… 4,7KpF
  • C13 ………………………………… 390pF
  • C14,C15 …………………………. 0,47uF
  • C16 ………………………………….. 10uF
  • C17 ………………………………… 10KpF

Transistor :

  • TR1,TR2 ……………………….. CS9014

Diode :

  • D1,D2,D3 ………………………. 1N4148
  • D4 ……………………………….. 1N4002
  • D5 …………………………………… LED

Integrated Circuit :

  • IC1 ……………………………….. TL082
  • IC2 ……………………………… MN3007
  • IC3 ………………………. TMN-13-2336

Other :

  • Mic …………………….. Condenser Mic