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Alto AMX-120 MKII Service Manual
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Alto AMX-120 MKII Service Manual

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Service Manual
MODEL: AMX-120 MKII
www.altoproaudio.com
Version: .1

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Summary of Contents for Alto AMX-120 MKII

  • Page 1 Service Manual MODEL: AMX-120 MKII www.altoproaudio.com Version: .1...

  • Page 2: Table Of Contents

    CONTENTS 1. Introduction........................1 2. Specification.........................2 3. Block Diagram......................3 4. Schematic Diagram....................4 5. PCB Layout........................8 6. Wiring Diagram......................11 7. Exploded Views & Mechanical Parts List..............12 8. BOM List........................14...

  • Page 3: Introduction

    PA installations. The AMX-120 MKII mixing console is packed with some key features that can not be found in other consoles of its size: 2 mono input channels (these are provided with ultra low noise microphone pre-amplifiers and phantom power at +48 Volt), each of which is provided with a 3 bands graphic equalizer for HI, MID and LOW controls;...

  • Page 4: Specification

    2. Specification Microphone input electronically balanced, discrete input configuration Frequency response 10Hz to 55kHz, + /-3dB Distortion (THD & N) 0.005% at +4dBu, 1kHz Gain range 0dB to 44dB (MIC) Mono input channels SNR (Signal to Noise Ratio) 115dB Line input electronically balanced Frequency response 10Hz to 55kHz, + /-3dB...

  • Page 5: Block Diagram

    3. Block Diagram --- 3 ---...

  • Page 6: Schematic Diagram

    4. Schematic Diagram --- 4 ---...
  • Page 7 --- 5 ---...
  • Page 8 --- 6 ---...
  • Page 9 --- 7 ---...

  • Page 10: Pcb Layout

    5. PCB Layout AMX-120 MKII-T op Overlay --- 8 ---...
  • Page 11 AMX-120 MKII-Bottom Overlay --- 9 ---...
  • Page 12 AMX-120 MKII-Bottom Layer --- 10 ---...

  • Page 13: Wiring Diagram

    6. Wiring Diagram --- 11 ---...

  • Page 14: Exploded Views & Mechanical Parts List

    7. Exploded Views & Mechanical Parts List MODEL No: AMX-120 MKII --- 12 ---...
  • Page 15 Mechanical Parts List S/N Part No Description Specification MA04536 panel AMX-120 ALTO MB03080 rear board AMX-120 HI00026 power switch RA12KKATOF 2P HI00171 power switch R612KKAT0F1 NI02377 knob φ5.5*7.5mm(3.3*3.3mm) NI01863 φ5.5*W10*7.5 NI02083 knob φ10.5*18mm NI02081 knob φ10.5*18mm NI02082 knob φ10.5*18mm 10 NI02817 knob φ10.5*18mm...

  • Page 16: Bom List

    ├0015 NE05004 label ALTO PF_V1.2 ├0016 NE02717 label MADE IN CHINA ├0017 NB02748 carton AMX-100;100FX;120_V1.0 ├0018 NB02750 gift carton-RS AMX-120 ALTO _V1.0 ├0019 NB02888 barrier AMX-100;120_V1.0 ├0020 NB02887 barrier AMX-100;120_V1.0 ├0021 MI02085 fixed bracket AMX-120 left_V1.0 ├0022 MI02087 fixed bracket AMX-120 right_V1.0...
  • Page 17 Layer Part No Description Specification Insert locatio Remark │　├0011 HC00065 connector(male) 2P 2.5mm 90° SW10,SW11 SW1,SW2,SW3,SW4,SW5,SW6,SW │　├0012 HI00236 push-button switch-RS 2 6P KFC-D85-C(SELF-LOCK) 7,SW8 │　├0013 SD00077 integrated circuit-RS L7815CV(TO220)/(ST/MOROCCO) TR21 │　├0014 SD00079 integrated circuit L7915CV(TO220)/(ST) TR22 │　├0015 SB00043 transistor-RS-ACT TIP122(TO220)/(ST) TR23 │　├0016 SD00007 integrated circuit...
  • Page 18 Layer Part No Description Specification Insert locatio Remark │　│　├0013 RD00078 SMD fixed resistor 1/10W 470Ω ±5% 0603 R247,R250 │　│　├0014 RD00082 SMD fixed resistor 1/10W 820Ω ±5% 0603 R253 │　│　├0015 RD00349 SMD fixed resistor 1/10W 910Ω ±5% 0603 R196,R197,R198,R199 │　│　├0016 RD00083 SMD fixed resistor 1/10W 1.0KΩ...
  • Page 19 Layer Part No Description Specification Insert locatio Remark │　│　├0047 SF00053 transistor MMBT3906(SOT23)/(PHI) TR13,TR14 │　│　├0048 SG00210 SMD integrated circuit LM339DT/(ST) U7,U8 U1,U2,U3,U4,U5,U6,U9,U10,U11,U │　│　├0049 SG00558 integrated circuit-RS UTC4580M(4580M )(SOP8)/(YW) 12,U13,U14,U15,U16,U17,U18,U19, U20,U21,U24,U25,U26,U27 │　│　├0050 RD00365 SMD precise resistor 1/10W 5.62KΩ ±1% 0603 R104,R105,R106,R114 │　│　├0051 AE00553 SenJu solder paste M705-GRN360-K2-V 0.5KG/bottle SMD ceramic capacitor-RS...
  • Page 20 Layer Part No Description Specification Insert locatio Remark │　│　　　├0009 CF00138 metal-film capacitor MSC 0.012uF/63V ±5% CASE01 C155,C156,C171,C172 │　│　　　├0010 CF00136 metal-film capacitor MSC 0.018uF/63V 5% CASE01 C131,C132,C163,C164 │　│　　　├0011 CF00137 metal-film capacitor MSC 0.033uF/63V 5% CASE01 C139,C140,C141,C142 │　│　　　├0012 RA01258 fixed resistor 1/4W 10Ω...